Determine the number of real solutions each quadratic equation has.
y = 12x2 - 9x + 4 _____real solution(s)
10x + y = -x2 + 2 _____real solution(s)
4y - 7 = 5x2 - x + 2 + 3y ______ real solution(s)
y = (-x + 4)2 ______real solution(s)

Answers

Answer 1

Answer:

1)  a=12 , b=-9 , c=4

2)  a=-1 , b=-10 , c=2

3)  a=5 , b=-1 , c=9

4)  a=1 , b=-8 , c=16

Step-by-step explanation:

Answer 2

(1) y = 12x² - 9x + 4 no real solutions.

(2) 10x + y = -x² + 2, two real solutions.

(3) 4y - 7 = 5x² - x + 2 + 3y, no real solution.

(4) y = (-x + 4)², one real solution.

How to calculate the solutions of the quadratic equations?

The number of real solutions for each quadratic equation is determined using discriminant.

The discriminant, denoted as Δ, is used to determine the nature of the roots of a quadratic equation of the form ax² + bx + c = 0.

Δ = b² - 4ac

From the given equations;

y = 12x² - 9x + 4

a = 12, b = -9, c = 4

Δ = (-9)² - 4(12)(4)

Δ = 81 - 192

Δ = -111

Since the discriminant Δ is negative (-111), this quadratic equation has no real solutions.

10x + y = -x² + 2

y = -x² - 10x + 2

a = -1, b = -10, c = 2

Δ = (-10)² - 4(-1)(2)

Δ = 100 + 8

Δ = 108

Since the Δ is positive and greater than zero, the equation has two real solutions.

4y - 7 = 5x² - x + 2 + 3y

4y - 3y = 5x² - x + 2 + 7

y = 5x² - x + 9

a = 5, b = -1, c = 9

Δ = (-1)² - 4(5)(9)

Δ = 1 - 20(9)

Δ = 1 - 180 = -179

No real solution.

y = (-x + 4)²

when y = 0

0 = -x + 4 or

0 = -x + 4

x = 4

The equation has one real solution.

Learn more about solutions of quadratic equations here: https://brainly.com/question/1214333

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Related Questions

A bag of marbles contains 7 red, 5 blue, 4 red, and 2 yellow marbles. Jon selects a marble, replaces it, then selects another marble. What is the probability that Jon selects a red marble and then a yellow marble?

Question 2 options:

about 0.778 or 77.8%


0.5 or 50%


about 0.043 or 4.3%


0.25 or 25%

Answers

[tex]|\Omega|=18^2=324\\|A|=7\cdot2=14\\\\P(A)=\dfrac{14}{324}=\dfrac{7}{162}\approx0.043(=4.3\%)[/tex]

First, we find the total number of marbles.

We add up the red, blue, and yellow marbles:

The number of red marbles is 7 + 4 which equals to 11.

The number of blue marbles is 5.

The number of yellow marbles is 2.

To find the total number, we add these numbers together: 11 (red) + 5 (blue) + 2 (yellow) = 18. So, the total number of marbles is 18.

Second, we find the probability of each event - that is, picking a red marble and then a yellow marble.

Probability is the number of desired outcomes divided by the total number of possible outcomes.

The probability of picking a red marble, denoted as P(red) is the number of red marbles divided by the total number of marbles. So, P(red) = 11 / 18 which is about 0.611 or 61.1%.

The probability of picking a yellow marble, denoted as P(yellow) is the number of yellow marbles divided by the total number of marbles. So, P(yellow) = 2 / 18 which is about 0.111 or 11.1%.

Finally, we can find the answer to our question: What is the probability that Jon selects a red marble and then a yellow marble?

Because these are independent events (selecting a red marble does not affect the chance of selecting a yellow marble next), we can use the multiplication rule of probability to find the overall probability.

The multiplication rule states that the probability of two independent events both happening is the product of their individual probabilities. So the probability of picking a red marble and then a yellow marble, denoted as P(red and yellow), is P(red) * P(yellow).

P(red and yellow) = P(red) * P(yellow) = 0.611 * 0.111 which results in about 0.0679 or 6.8%.

So, the closest option is about 0.043 or 4.3% which seems to be incorrect as our calculated probability is different. There might be a mistake in the question or the provided options.

helpppppppp? please thank you

Answers

The x values are the same for both green dots, so you are looking at a simplified version of the distance formula.

d = sqrt( (x2 - x1)^2 + (y2 - y1)^2 )

Since x1 = x2 = 5, the first set of brackets = (5 - 5) = 0

d = sqrt( y2 - y1)^2 )

d = y2 - y1

y2 = 5

y1 = - 1

d = 5 - - 1

d = 6    Answer


6. Count the squares between the two!

Lucia knows the fourth term in a sequence is 52 and the ninth term in the same sequence is 82. Complete the explanation of how she can find the common difference for the sequence. Then use the common difference to find the second term of the sequence

Answers

well, I really can't really understand the way you asked the question, But, If it helps I can give you the entire sequence all the way to 82.

The sequence is,

2, 12, 22, 32, 42, 52, 62, 72 , 82, ect...,

What is the value of x in the equation 3(2x + 4) = –6? (4 points)


–3

1

12

19
3.
The steps below show the incomplete solution to find the value of x for the equation

5x –2x –3 = –2 + 15:

Step 1: 5x –2x –3 = –2 + 15

Step 2: 5x –2x –3 = 13

Step 3: 3x –3 = 13

Which of these is most likely the next step? (4 points)


3x = 16

3x = 10

3x = 39

3x = 3

Answers

Starting with this:
[tex]3(2x + 4) = - 6[/tex]
First you would distribute the 3 into the ( )
so 2 would become 6 and 4 would become 12
[tex]6x + 12 = - 6[/tex]
next you subtract 12 from -6
[tex]6 x = - 18[/tex]
now you divide -18/6
[tex] \frac{ - 18}{6} = - 3[/tex]

then for #3.
[tex]3x - 3 = 13[/tex]
the next step would be to add 3 to 13
[tex]3x = 16[/tex]
then divide 3 from 16 to get
[tex] \frac{16}{3} = 5.333333333[/tex]
so around 5.3

What is the equation of the following graph in vertex form?
Courtesy of Texas Instruments (2 points)


y = (x - 3)2 - 1

y = (x + 3)2 - 1

y = (x - 4)2 - 2

y = (x - 4)2 + 8

Answers

For this case we have:

The equation in vertex form of the parabola is given by:

[tex]y = a (x-h) ^ 2 + k\\[/tex]

The vertex is (h, k) and is given by the highest or lowest point of the parabola, in this case it is observed that it is [tex](h, k) = (- 3, -1)\\[/tex]

Thus, the equation is given by:

[tex]y = a (x - (- 3)) ^ 2 + (- 1)\\\\y = a (x + 3) ^ 2-1\\[/tex]

We look for the value of a, substituting a point of the parabola in the equation in the form of vertex, we will take the point [tex](x, y) = (0,8)\\[/tex]

Substituting we have:

[tex]8 = a (0 - (- 3)) ^ 2 + (- 1)\\\\8 = a (0 + 3) ^ 2-1\\\\8 = a (3) ^ 2-1\\[/tex]

[tex]8 = 9a-1\\\\8 + 1 = 9a\\\\9 = 9a\\[/tex]

[tex]a = \frac{9}{9}\\\\a = 1\\[/tex]

Thus, the equation of the parabola is given by:

[tex]y = (x + 3) ^ 2-1\\[/tex]

Answer:

[tex]y = (x + 3) ^ 2-1[/tex]

Answer:

 

y = (x + 3)2 - 1

Step-by-step explanation:

The estimated insurance loss from a hurricane was ​$18.218.2 billion. This was ​$12.412.4 billion more than the loss from a tsunami three years later. What was the estimated insurance loss from the​ tsunami?

Answers

Answer:

If you are asking about the difference between the two, the difference is $5,805.80

Step-by-step explanation:


Which of the following is equivalent to 17g – 2g?

A.) (17 – 2) + g

B.) (17 – 2)g²

C.) (17 – 2) + g²

D.) (17 – 2)g

Answers

Hey there!!

Given equation :

17g - 2g

Let;s first look at something which is common in both the terms.

Yes, the alphabet which is common is the ' g '.

Now, let's apply distributive property.

... 17g - 2g

... g ( 17 - 2 )

Hence, the appropriate answer would be ' D '.

Hope my answer helps!

Joe rented a truck for ine day. There was a base fee of $15.99 and there was an additonal charge of 75 cents for each driven mile joe had to pay $183.24 when he returned the truck for how many miles did he drive the truck

Answers

183.24 - 15.99 base fee equals 167.25 spent total on mileage.

167.25÷ 0.75=223

He drove 223 miles

Using the formula r=d/t, where d is the didtance in miles, r is the rate, and t is the time in hours,at which rate must you travel to cover 185 miles in 2.5 hours

Answers

The rate of speed would be 74 mph

What is the justification for each step in the solution of the equation?

23x−13=2(x+2) Given
2x−1=6(x+2)
2x−1=6x+12 Distributive Property
2x=6x+13
−4x=13 Addition or Subtraction Property of Equality
x=−134

Answers

For this case we have the following equation:

[tex]\frac{2}{3}x-\frac{1}{3}= 2 (x + 2)\\[/tex]

If we multiply both sides of the equation by 3 we get:

[tex]2x-1 = 6 (x + 2)[/tex] ---> Multiplication Property of Equality

Applying the distributive property we have:

[tex]2x-1 = 6x + 12[/tex] ---> Distributive Property

Adding 1 on both sides of equality we have:

[tex]2x-1 + 1 = 6x + 12 + 1\\[/tex]

[tex]2x = 6x + 13[/tex] ---> Addition Property of Equality

Subtracting [tex]6x[/tex] on both sides we have:

[tex]-6x + 2x = 6x-6x + 13\\[/tex]

[tex]-4x = 13[/tex] ---> Subtraction Property of Equality

Finally, dividing by -4 on both sides we have:

[tex]\frac{-4x}{-4}= \frac{13}{-4}\\[/tex]

[tex]x = -\frac{13}{4}[/tex]---> Division Property of Equality


Sarah received a gift in a rectangular box with a volume of 240 in3. If the base of the box was 20 in2, how tall was the box? A) 2 inches B) 10 inches C) 12 inches D) 15 inches

Answers

Answer:

12 inches

Step-by-step explanation:

volume = length * width * height

volume = (length * width) * height

volume = (area of base) * height

height = volume/(area of base)

height = (240 in^3)/(20 in^2) = 12 in

Answer the box was 12 in bc 20x240divided by 4 =12

Explain why a vertical line is said to have undefined slope or no slope.

Answers

A vertical linehas undefined slope because all points on the line have the same x-coordinate.

A party host is making identical party bags for guests using 44 bottles of bubbles, 89 stickers, and 55 pencils. What is the greatest number of identical party bags the host can make with the least amount of items leftover? Describe the contents of each bag.

Answers

Answer: 11 party bags with 1 sticker leftover

Each bag contains 4 bubbles, 8 stickers, and 5 pencils.

Step-by-step explanation:

Find the GCF of 44 (bubbles), 89 (stickers), and 55 (pencils)

44: 2 x 2 x 11

89: prime so choose 88 with 1 leftover

88: 2 x 2 x 2 x 11

55: 5 x 11

GCF = 11

Disregard the GCF to see how many of that item should go in each bag.

Bubbles: 2 x 2

Stickers: 2 x 2 x 2

Pencils: 5



What is the perimeter of the triangle shown on the coordinate plane, to the nearest tenth of a unit? A.24.8 units B.27.8 units C.28.5 units D.30.9 units

Answers

The answer is B I hope I helped

Answer:

the answer is B.28.7 hope i helped you learn something new

Step-by-step explanatio

PLZ help 20pts
Which graph represents the equation y=2/3x−2 ?

Answers

The slope-intercept form:

y = mx + b

m - slope

b - y-intercept

We have y = 2/3 x - 2

y-intercept = -2

Only the one graph has that y-intercept (look at the picture).


y = [tex]\frac{2}{3}x[/tex] - 2 means the line will intercept the y-axis at -2 and have a slope (rise over run) of 2 over 3.

Answer: C

A toy jeep is 12 1/2 inches long while an actual Jeep measures 18 3/4 ft long what is the value of the ratio length of a toy Jeep to the length of a actual Jeep

Answers

The length of toy jeep = [tex]12 \frac{1}{2}[/tex]

= [tex]\frac{25}{2}[/tex] inches

The length of actual Jeep = [tex]18 \frac{3}{4}[/tex] feet

We have to find the ratio length of a toy jeep to the length of actual jeep.

Firstly, we will make the dimensions of the both the given lengths same.

As 1 foot = 12 inches

[tex]18 \frac{3}{4}[/tex] feet = [tex]18 \frac{3}{4} \times 12[/tex] inches

=[tex]\frac{75 \times 12}{4}[/tex]

= 225 inches

So, the ratio length of toy jeep to actual jeep

= [tex]\frac{25}{2} \div 225[/tex]

= [tex]\frac{25}{2} \times \frac{1}{225}[/tex]

= [tex]\frac{1}{18}[/tex]

= 1:18

So, the ratio length of a toy Jeep to the length of a actual Jeep is 1:18.

Length of toy jeep = [tex]12\frac{1}{2}=\frac{25}{2}[/tex] inches

Length of actual jeep = [tex]18\frac{3}{4}=\frac{75}{4}[/tex] feet

Now to find the ratio between the two, we must convert both of them in same units. So, lets convert the actual jeep length in feet to inches.

1 feet = 12 inches.

So, [tex]\frac{75}{4}[/tex] feet = [tex]\frac{75}{4}\times12=225[/tex] inches

Ratio of length of toy jeep to actual jeep will be =

[tex]\frac{\frac{25}{2}}{225}[/tex]

[tex]\frac{25}{2\times225}[/tex]

[tex]\frac{25}{450}[/tex] = [tex]\frac{5}{90}[/tex]

ratio is : [tex]\frac{1}{18}[/tex] or 1:18


if f(x)=2x and g(x)=1/x, what is the domain of (fg)(x)

Answers

Answer is All real No.s

Answer: all real #s except x=0

Step-by-step explanation:

Edge 2022

You and your friend are having a race, but since you are faster than him, you decide to give him a head start. He starts 10m in front of the starting line while you start on the starting line. You run at 6 meters/second, while your friend runs at 5.5 meters/second. After how many seconds will you and your friend be same distance from the starting line? seconds months

Answers

Answer:

20 seconds

Step-by-step explanation:

Your friend starts 10 meters in front of the starting line.

You start from the starting line.

You run at 6 meters/ second.

Your friend runs at 5.5 meters/second.

You and your friend will be at the same distance from the starting line only when you are able to catch your friend.

The relative speed between you two is the difference in your speed and your friend's speed that is:

[tex]6-5.5=0.5m/s[/tex]

So to cover 10 meters of separation at the speed of 0.5 meter/second it will take:

[tex]t=\frac{10}{0.5}= \frac{100}{5}=20s[/tex]

So it will take 20 seconds for you and your friend to be at the same distance from the starting line.  

Answer:

20 seconds is correct.

Step-by-step explanation:

a person who is entitled to social security benefits but is not receiving them would take his or her case to...

A: administrative court
B: Civil court
C: criminal on the state
D: It depends on the state

Answers

Administrative court

Answer:

A: administrative court.

Step-by-step explanation:

An administrative court is specialize in administrative laws, its concern is mainly about public powers. Basically, the role of these type of courts is to ensure that officials are doing their job according to the law. Some of the issues that matters to an administrative courts are: taxation, dispensation of monetary benefits, environmental licenses, building inspection, child custody, immigration decisions, and more.

So, in this case we are talking about social security, someone is not receiving the benefits from it, so this means that a public institution is not working well, that's an administrative court jurisdiction, because it's in the public sector.

As a farmer, one of your responsibilities is to plow the field to prepare it for planting. On day 1, you plowed of the field. On day 2, you plowed of the field. How much more of the field did you plow on day 1 than on day 2?

Answers

Answer:

1/2 more then day 2.

Step-by-step explanation:


Final answer:

The difference in the amount of field plowed on day 1 compared to day 2 is 1/4, assuming day 1 was ½ and day 2 was ¼ of the field.

Explanation:

To calculate how much more of the field was plowed on day 1 than on day 2, we need to subtract the fractions that represent the part of the field plowed on each day. However, you did not specify the fractions, so I will assume you meant to say ½ of the field was plowed on day 1 and ¼ of the field on day 2. Thus, the difference can be calculated as follows:

Calculate the difference in fractions: ½ - ¼.Find a common denominator for the two fractions, which is 4 in this case.Convert both fractions to have the common denominator: ½ = 2/4 and ¼ remains the same.Subtract the numerators: 2 - 1 = 1.Write the result as a fraction with the common denominator: 1/4.

Therefore, you plowed 1/4 more of the field on day 1 than you did on day 2.

What are the values of m and n in the matrix addition below?

Answers

ANSWER

The correct answer is [tex]m=45,n=12[/tex].

EXPLANATION

We were given the matrix equation;

[tex]\left[\begin{array}{cc}n-1&6\\-19&m+3\end{array}\right] +\left[\begin{array}{cc}-1&0\\16&-8\end{array}\right] =\left[\begin{array}{cc}10&6\\-3&40\end{array}\right][/tex].


We must first simplify the Left Hand Side of the equation by adding corresponding entries.


[tex]\left[\begin{array}{cc}n-1+-1&6+0\\-19+16&m+3-8\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right][/tex].


That is;


[tex]\left[\begin{array}{cc}n-2&6\\-3&m-5\end{array}\right]=\left[\begin{array}{cc}10&6\\-3&40\end{array}\right][/tex].

Since the two matrices are equal, their corresponding entries are also equal. we equate corresponding entries and solve for m and n.


This implies that;


[tex]n-2=10[/tex]


We got this equation from row one-column one entry of both matrices.


[tex]n=12[/tex]


Also, the row three-column three entries of both matrices will give us the equation;


[tex]m-5=40[/tex]


[tex]m=45[/tex]


Hence the correct answer is [tex]m=45,n=12[/tex].


The correct option is option 2






△ABC is mapped to △A′B′C′ using the rule (x, y)→(−x, −y) followed by (x, y)→(x, −y) .



Which statement correctly describes the relationship between △ABC and △A′B′C′ ?


A. △ABC is congruent to △A′B′C′ because the rules represent a reflection followed by a rotation, which is a sequence of rigid motions.

B. △ABC is congruent to △A′B′C′ because the rules represent a rotation followed by a reflection, which is a sequence of rigid motions.

C. △ABC is not congruent to △A′B′C′ because the rules do not represent a sequence of rigid motions.

D. △ABC is congruent to △A′B′C′ because the rules represent a reflection followed by a reflection, which is a sequence of rigid motions.

Answers

Answer:

B. △ABC is congruent to △A′B′C′ because the rules represent a rotation followed by a reflection, which is a sequence of rigid motions.

Step-by-step explanation:

I just took the test, good luck! Have a wonderful day! :)

Transformation involves changing the position of a shape.

The correct statement is: (b) △ABC is congruent to △A′B′C′ because the rules represent a rotation followed by a reflection, which is a sequence of rigid motions.

The transformation rule is given as:

[tex]\mathbf{(x,y) \to (-x,-y)}[/tex], then:

[tex]\mathbf{(x,y) \to (x,-y)}[/tex]

The first transformation [tex]\mathbf{(x,y) \to (-x,-y)}[/tex] is 180 degrees rotation across the originThe second transformation [tex]\mathbf{(x,y) \to (x,-y)}[/tex] is a reflection across the x-axis

Rotation and reflection are both rigid transformation.

Hence, the correct option is (b):

Read more about rotation and reflection at:

https://brainly.com/question/15577335

what the value of tge expression 30+(6÷3)+(3+4)

Answers

Remember to follow PEMDAS (Parenthesis, Exponents (and roots), Multiplication, Division, Addition, Subtraction)

First, solve the parenthesis

30 + (6/3) + (3 + 4)

30 + 2 + 7

Next, simplify. Combine like terms

30 + 2 + 7 = 39

39 is your answer

~Rise Above the Ordinary

Hello there!

Hint⇒⇒⇒⇒⇒⇒ You had to used PEMDAS.

P-Parenthesis

E-Exponents

M-Multiply

D-Divide

A-Add

S-Subtract

Explanation:

↓↓↓↓↓↓↓↓↓↓↓↓↓

[tex]30+(6/3)+(3+4)[/tex]

First you had to calculate with parenthesis first.

[tex](6/3)=2[/tex]

[tex]30+2+(3+4)[/tex]

Then you can calculate with parenthesis again.

[tex](3+4)=7[/tex]

[tex]30+2+7[/tex]

You had to add and subtract from left to right.

[tex]30+2+7=39[/tex]

[tex]=39[/tex]

Answer⇒⇒⇒⇒39

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

Sam initially invested $4,500 into a savings account that offers an interest rate of 3% each year. He wants to determine the number of years, t, for which the account will have less than or equal to $7,020.

Answers

Every year, Sam will have 103% of the amount from the previous year.

[tex]p\%=\dfrac{p}{100}\\\\103\%=\dfrac{103}{100}=1.03[/tex]

After the first year:

[tex]1.03\cdot\$4,500[/tex]

After the second year:

[tex]1.03\cdot1.03\cdot\$4,500=\$4,500(1.03)^2[/tex]

After the t-th year:

[tex]\$4,500(1.03)^t[/tex]

Therefore we have the inequality:

[tex]\$4,500(1.03)^t\leq\$7,020\ \ \ \ |\text{divide both sides by \$4,500}\\\\(1.03)^t\leq1.56\\\\(1.03)^{15}\approx15.56\\\\\text{therefore}\ t\leq15[/tex]

Answer: t ≤ 15.

Which correctly describes the point of discontinuity of the function?

Answers

A real-valued univariate function f=f(x) has a jump discontinuity at a point [tex]x_0[/tex] in its domain provided that

[tex]\lim \limits_{x\to x_0^-}f(x)=A_1[/tex]

and

[tex]\lim \limits_{x\to x_0^+}f(x)=A_2[/tex]

both exist and that [tex]A_1\neq A_2.[/tex]

As you can see at x=-3,

[tex]\lim \limits_{x\to -3^-}f(x)=6,[/tex] [tex]\lim \limits_{x\to -3^+}f(x)=9[/tex] and [tex]6\neq 9.[/tex]

Therefore, there is a jump discontinuity at x=-3.

Answer: correct choice is A.

Graph x<2
please only answer if you know what your doing

Answers

This is the same concept as the previous question.  The symbol (<) means it is a dashed line and shaded to the left.

Answer: B

Five cats each ate 1/4 cup of cat food. How much food did the five cats eat?

Answers

Answer:  Five cats ate 1 and a quarter of cat food.


Step-by-step explanation

Given:-

Cat food ate by one cat = 1/4 cup

Cat food ate by five cats =[tex]5\times \frac{1}{4} \text{ [Multiplying both sides with 5 ]}\\\\=\frac{5}{4}=\frac{4+1}{4}=\frac{4}{4}+\frac{1}{4}=1+\frac{1}{4}[/tex]=1 and 1/4 cup.

Therefore cat food ate by five cats = 1 and a quarter of cup.[ here a quarter =1/4]

What steps would you take to construct an angle bisector? How many arcs would you make?

Answers

The steps are as follows:

1. Put the compass at one point on the vertex of the angle and draw an arc that intersects both sides of the angle.

2. Now, draw an arc from each of these points of intersection, in such a way that the arcs intersect in the interior of the angle. Keep the compass open in the same amount throughout this step.

3. Now, draw a ray/line from the vertex of the angle to the intersection point of the two arcs drawn during step 2.

How many arcs would you make? We will draw 3 arcs.

Find the system determinant of the given matrix. [2, 4] [3,-9]

Answers

[tex]\left[\begin{array}{ccc}2&4\\3&-9\end{array}\right]\\\\\det\left[\begin{array}{ccc}2&4\\3&-9\end{array}\right]=(2)(-9)-(4)(3)=-18-12=-30[/tex]

Answer:

-30 will be the determinant.

Step-by-step explanation:

We have to find the system determinant of the given matrix

[tex]\begin{bmatrix}2 & 4\\ 3 & -9\end{bmatrix}[/tex]

Determinant will be = 2(-9) - (4 × 3)

                                 = -18 -12

                                = -30

Therefore, as per given options by you in the comments.

option A is the answer.

The question is in the attached. Thank yo

Answers

C Is your awnser! have a good day Pretty sure its C because theres only 1 line

Other Questions
Which statement represents the biconditional statement of the conditional statements?If the measures of two angles have a sum of 90, then the angles are complements.If two angles are complements, then their measures have a sum of 90.The measures of two angles do not have a sum of 90 if and only if the angles are complements.The measures of two angles have a sum of 90 if and only if the angles are complements.The measures of two angles do not have a sum of 90 if and only if the angles are not complements.The measures of two angles have a sum of 90 if and only if the angles are not complements. Why was the South against the idea of the government paying state debts?A) They did not want taxes to increase.B) The South had already paid most of its debts.C) The North had less debt than the South.D) The South felt this was a violation of the Constitution. which religious community was an early supporter of the abolitionist movement? -4 < -2(2 + 7x) + 6(x + 8)Please help and show work!! Were the Puritans selfish or selfless? Kai is making a chessboard using pieces of wood that measure 1 square inch.when he finishes, the chessboard will have an area of 64 square inches.how many pieces of wood should he put along each side?a. 64 pieces of woodb. 642 pieces of woodc. 8 pieces of woodd. 82 pieces of wood Find the width (w)of a rectangular room with a length (l) of 60 meters and an area (a) of 2,400 square meters a 21-ounce box of cereal costs $2.94, what is the unit price? what is the unit price? In which sentence is the appositive phrase punctuated correctly? (a) The renowned painter Salvador Dali, died in 1989. (b) The renowned painter Salvador Dali died in 1989. (c) The renowned painter, Salvador Dali died in 1989. (d) The renowned painter, Salvador Dali, died in 1989. help my on these two questions plss find the line parallel to y=-4x+5 and goes through the point (1,3) Traditional music in Asia is generally based on:Question 3 options:A an octave based system, similar to our own.B banging the drum. C a heptatonic system with seven notes that correspond to the white keys on the piano.D a pentatonic system with five notes that roughly correspond to the black keys on the piano. Explain how you can tell the function f (x) = |x + 4| is not linear by using points on its graph. How many cubes are needed to build the base of this structure? Luiza runs a lawn-mowing business. She decides to measure the rate at which the volume of fuel she uses increases with the area of the lawn. What would be an appropriate unit for Luiza's purpose? Jesse used 5 gallons of gasoline to drive 50 miles. How much gasoline will he need to travel 170 miles? Think about the two words that make up the term reproductive isolation. How do you think reproductive isolation affects the evolution of a species? PLEASE HELP!!!!1) Which of the following Constructed Responses has included all of the RACE method that responds appropriately to the prompt--Which brother demonstrates perserverance in the face of adversity?A) The boy called Dunny does not give up trying to compete with his brothers even though they tease him. When Dunnys brothers tell him he is too stupid to try to win the pony, Dunny walked quickly toward the pond to try the task anyway. Because he persevered in this task, Dunny succeeded and gained respect from his brothers. B) In Jane L. Hoxies story A Kindergarten Story Book: Dunny, the main character shows perseverance. The boy called Dunny does not give up trying to compete with his brothers even though they tease him. When Dunnys brothers tell him he is too stupid to try to win the pony, Dunny walked quickly toward the pond to try the task anyway. His actions show that he will not stop despite the discouragement of his brothers. Because he persevered in this task, Dunny succeeded and gained respect from his brothers. C) How does the main character of Jane L. Hoxies story A Kindergarten Story Book: Dunny, show perseverance? When Dunnys brothers tell him he is too stupid to try to win the pony, Dunny walked quickly toward the pond to try the task anyway. His actions show that he will not stop despite the discouragement of his brothers. Because he persevered in this task, Dunny succeeded and gained respect from his brothers. D) The main character shows perseverance. The boy called Dunny does not give up trying to compete with his brothers even though they tease him. His actions show that he will not stop despite the discouragement of his brothers. Because he persevered in this task, Dunny succeeded and gained respect from his brothers. From what perspective is this story told?A) 1st person B) 2nd person C) 3rd person omniscient D) 3rd person limited What would be the effect if the point of view of the passage was changed and Dunny was the narrator?A) The audience would not know what was going on B) The audience would not be able to know the thoughts of the brothers C) Dunny would be a comical narrator D) The audience would not feel compassionate toward Dunny How does the author create a feeling of suspense or tension through the conflict of the story?A) by characterizing the three brothers as wicked and cruel B) by setting the story in a natural woodland with wild creatures that are creepy, scary, and heighten the audience's anticipation that something bad is about to happen C) by creating sympathy for the abused, mocked and oppressed character, Dunny D) by letting each brother follow the same path; the audience expects something to be different when Dunny reaches his turn Which of the following lines represents the CLIMAX of the story?A) The boy did not know what the bird was saying, "Out of my path, you stupid creature!" he cried, flinging a stone at it. B) Now, at last, it was Dunny's turn; but the two elder brothers teased him. C) Dunny knew what he was saying, and gathering moss and clay from the bank of the bond, he carefully stopped all the whole and cracks in the basket. D) So the pony was given to him, and his brothers never called him Dunny again. By 1950, only 8 reindeer remained on the island. What was the average annual decrease between 1938 and 1950? Find a single expression that represents the area of the outer ring of the circle if the area of the whole circle is represented by the expression "25x2 12x 9."