Mr. Huynh wrote the sum of 7 fifteens and 38 fifteens on the board. Draw a model, and write the correct expression.

Answer:

It's C (-2,-2)

Step-by-step explanation:

Answer:

8√3

Step-by-step explanation:

3√12 = 3√4 x 3 = 5√3

√27 = 3√3

5√3 + 3√3 = 8√3

Answer:

A graph has month on the x-axis and saved (money) on the y-axis. Points are at (0, 3,000), (2, 2,450), and (5, 1,625).

The instructor’s friend also plans to rent an apartment in the same complex. Use the graph to identify the y-intercept and the slope used to write the equation in slope intercept form.

y-intercept =

✔ 3000

Slope =

✔ –275

Linear equation =

✔ y = -275x + 3000

Step-by-step explanation:

The linear equation which models the data represented by the graph written is slope - intercept form is :y= - 275x + 3000

General form of a slope - intercept equation :

Slope = Rise / Run

The slope, b:

Slope = (1375 ÷ -5) = - 275

The intercept, c:

This is the point on the graph where the trend line crosses the y-axis.

Hence, the intercept is 3000

Therefore, the slope - intercept equation is y= - 275x + 3000

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Answer:

D

Step-by-step explanation:

A is 4, which is rational,

B is just 1/3, which is rational,

C is -8, which is rational,

leaving D, which is 3.1415926535...

The required sentence are 3 + 7 = 10 could help solve this problem 3 + 5 + 7 =15. Option C is correct.

Given that,
Which additional sentence could help solve this problem 3 + 5 + 7 =15 is to be determined.

The technique in computation to use and analyze the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

In mathematics, it vends on a number of procedures according to the declarations. There are four primary arithmetic operators, addition, subtraction, multiplication, and division,

Here,
The sentence could help solve this problem 3 + 5 + 7 =15
3 + 7 + 5 = 15 - - - - - - -(1)
3 + 7 = 10
Put it in equation 1
10 + 5 = 15

Thus, the required sentence are 3 + 7 = 10 could help solve this problem 3 + 5 + 7 =15. Option C is correct.

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The water level in the tank decreased from 8 cm to 4 cm. This represents a decrease of 4 cm or a 50% decrease.

The decrease in water level in the tank is calculated by finding the difference between the initial level and the final level. In this case, the initial level is 8 cm and the final level is 4 cm. The difference between these two levels is 4 cm.

To calculate the percent decrease, divide the decrease in level by the initial level and then multiply by 100%. So, in this case, the percent decrease in water level is (4 cm / 8 cm) * 100% = 50%.

The percent decrease of water in the tank from noon to several hours later is therefore 50%.

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The percent decrease of water in the tank is 50%.

To find the percent decrease of water in the tank, we need to calculate the difference in the water level and express it as a percentage of the initial water level.

The initial water level at noon is 8 cm and after several hours it decreases to 4 cm. The difference in water level is 8 cm - 4 cm = 4 cm.

To find the percentage decrease, divide the difference in water level by the initial water level and multiply by 100.

The percent decrease is (4 cm / 8 cm) * 100 = 50%.

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Answer:

-\sqrt{5}< x < \sqrt{5}[/tex]

Step-by-step explanation:

[tex]x^{2} <5 => -\sqrt{5}< x < \sqrt{5}[/tex]

Answer:

[tex]-\sqrt{5} <x<5[/tex]

Step-by-step explanation:

The given expression is

[tex]x^{2} -5<0[/tex]

To solve this quadratic inequality, we need to isolate the variable and then apply the quadratic root at each side of the inequality, as follows

[tex]x^{2} <5\\x<\±\sqrt{5}[/tex]

Remember that a quadratic root has two results, one positive and one negative, which in this case would be

[tex]x<\sqrt{5}\\ x>-\sqrt{5}[/tex]

Remember that a negative factor changes the direction of the inequality relation to the opposite.

Therefore, the solution is

[tex]-\sqrt{5} <x<5[/tex]

That is, all values between [tex]-\sqrt{5}[/tex] and [tex]\sqrt{5}[/tex].

Answer:

The answers are B, C, and D.

Step-by-step explanation:

When you rotate an image 180° about the origin, you are flipping it twice. An easy rule is that an (x, y) pair becomes (-x, -y). Now just reverse the sign of the coordinates. Our rotated shape has the coordinates (-5, -6), (-5, -4), and (-8, -4).

Answer:  C. (−5, −6)          D. (−8, −4)

Step-by-step explanation:

We know that the rule for rotation a shape by [tex]180^{\circ}[/tex] (counterclockwise or clockwise) is given by :-

[tex](x,y)\to(-x,-y)[/tex]  [Polarity of coordinates gets changed]

Given : Troy drew a triangle with coordinates ( 5 , 6 ) , ( 5 , 4 ) , and ( 8 , 4 ) . He rotated the triangle 180° about the origin.

Then, the coordinates of the image will be :-

[tex]( 5 , 6 )\to(-5,-6)[/tex]

[tex]( 5 , 4 )\to(-5,-4)[/tex]

[tex]( 8 , 4 )\to(-8,-4)[/tex]

From the options, the coordinates of the image = (-5,-6) and (-8, -4)

Hence, option C and D are correct.

Answer:

-114

Step-by-step explanation: I just did this

Answer:

the answer is 6

Step-by-step explanation:

6×3=18

So 6×5=30, 6×2=12

30-12=18

18=18

Answer:

573,626

Step-by-step explanation:

563626 + 10000 = 573626

I solved 2/5(x − 2) = 4x. I don't know why you included those extra numbers.

-2/9

Answer:

The equation above has no question, but if there was, then yes, the equation above does equal -14

Step-by-step explanation:

Answer:

-14

Step-by-step explanation:

(−2) − (3+(2))−7

= - 2 - ( 3 + 2 ) - 7 = − 2 − ( 3 + 2 ) − 7

= - 2 - 5 - 7 = − 2 − 5 − 7

- 14

Answer:

Step-by-step explanation:

18 - 8x = -6x.

Add 8x from the left side to the right

18=2x

18/2 = 9

x=9

The system of equations provided is classified as inconsistent because the equations have equal slopes but different y-intercepts, indicating they are parallel lines without any intersection point.

To classify the system as independent, dependent, or inconsistent without graphing, we need to rearrange the equations into a common linear form, typically y = mx + b, where m is the slope and b is the y-intercept.

The given equations of the system are y = 4x + 6 and 1 - 8x + 2y = 12. Let's rewrite the second equation in the form y = mx + b, which results in y = 4x - 5.

Now, let's compare. The first equation has a slope of 4 (m1 = 4) and the second equation also has a slope of 4 (m2 = 4). However, the y-intercepts of the two lines (b1 = 6, b2 = -5) are different.

Since the slopes are equal and the y-intercepts are different, the system is inconsistent. In other words, the two lines are parallel and do not intersect, so there is no solution to the system.

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Answer:

A

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) + g(x) = 4x + 2 + x² - 6 = x² + 4x - 4 → A

Answer:

The solution is {6, -7}.

Step-by-step explanation:

2x + y = 5

x – y = 13  Adding these 2 equations eliminates y:

3x + 0 = 18

x = 6.

Substituting for x in equation (1):

2(6) + y = 5

y = 5 - 12 = -7.

The ordered pair that is a solution to the linear system of equations, (2x + y = 5) and (x - y = 13), is (6, -7). The solution was found by using the elimination method.

You can solve this linear system by using the substitution or elimination method. Here, I will use the elimination method, which involves adding or subtracting the equations to eliminate one of the variables.

So the

ordered

pair that is a solution to the linear system is (6, -7).

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No, angle B or angle C can't be obtuse.

It is given that:

Angle A in triangle ABC is obtuse.

This means that:

∠A > 90°

Now, let us assume that:

Angle B is obtuse.

i.e. ∠B > 90°

Hence, we get that the sum of two angle is greater than 180 degree.(i.e. ∠A+∠B > 180° )

hence, the sum of all the three angles will be greater than 180 degrees.

But we know that in order to form a triangle the sum of all the three angles must be equal to 180 degree.

No, angle B and angle C cannot be obtuse if angle A is obtuse because the sum of angles in a triangle is always 180 degrees, and if one angle is obtuse, the other two must be acute to satisfy this rule.

We have,

In a triangle, the sum of all angles is always 180 degrees.

If angle A in triangle ABC is obtuse, it means it measures more than 90 degrees (greater than a right angle).

For the sum of the angles to be 180 degrees, angles B and C must be acute (measuring less than 90 degrees).

This is because if either angle B or angle C were obtuse, the sum of the angles would exceed 180 degrees, which is not possible in a triangle.

So, angle B and angle C cannot be obtuse if angle A is obtuse.

Thus,

No, angle B and angle C cannot be obtuse if angle A is obtuse because the sum of angles in a triangle is always 180 degrees, and if one angle is obtuse, the other two must be acute to satisfy this rule.

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Answer:

87.648

this is the answer

Answer:

87.648 should be your answer

Answer:

[tex]3a-4b-13[/tex]

Step-by-step explanation:

Given: [tex](2a+5b-7)+(a-9b-6)[/tex]

Since we are adding, there is no real use for the parenthesis. This may help you visualize it better.

[tex]2a+5b-7+a-9b-6[/tex]

Combine like terms:

[tex]3a-4b-13[/tex]

It is the answer shown below

3a-4b-13

Answer:

2/8 or 1/4

Step-by-step explanation:

2 1/8 - 1 7/8 - Make improper fractions

17/8 - 15/8 - subtract them

2/8 - simplify

1/4 - final

In order to get the answer to this question you will have to change the mixed numbers into improper fractions and then subtract by finding the common denominator and then subtracting the numerators and reduce if needed to get your answer.

[tex]2\frac{1}{8} - 1\frac{7}{8}[/tex]

Convert into improper fractions:

[tex]2\frac{1}{8} =\frac{17}{8}[/tex]

[tex]1\frac{7}{8} = \frac{15}{8}[/tex]

[tex]\frac{17}{8} - \frac{15}{8}[/tex]

Find the common denominator:

[tex]CD=8[/tex]

[tex]17-15=2[/tex]

[tex]=\frac{2}{8}[/tex]

Reduce:

[tex]\frac{2}{8} \div2=\frac{1}{4}[/tex]

[tex]=\frac{1}{4}[/tex]

Therefore your answer is "1/4."

Hope this helps

Hey!

-----------------------------------------------

Solution:

= (-18) - (4)

= -18 - 4

= -22

When you subtract a positive to a negative number the end result will always be negative.

-----------------------------------------------

Answer:

B. 22

-----------------------------------------------

Hope This Helped! Good Luck!

Answer:

[tex]D=\sqrt{10}=3,16...[/tex]

Step-by-step explanation:

[tex]A(x_{1},y_{1})[/tex]

[tex]B(x_{2};y_{2})[/tex]

[tex]D=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

[tex]A(-6,2)[/tex]

[tex]B(-9;1)[/tex]

[tex]D=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

[tex]D=\sqrt{[-9-(-6)]^{2}+(1-2)^{2}}[/tex]

[tex]D=\sqrt{[-9+6]^{2}+(1-2)^{2}}[/tex]

[tex]D=\sqrt{[-3]^{2}+(-1)^{2}}[/tex]

[tex]D=\sqrt{9+1}[/tex]

[tex]D=\sqrt{10}=3,16...[/tex]

Answer:

The distance between  -6.2 and -9.1 is 2.9.

Step-by-step explanation:

Given : Two numbers -6.2 and -9.1.

To find : What is the distance between the numbers ?

Solution :

Let A=-6.2

B=-9.1

The distance between two number is [tex]d=|B-A|[/tex]

Substitute the values,

[tex]d=|-9.1-(-6.2)|[/tex]

[tex]d=|-9.1+6.2|[/tex]

[tex]d=|-2.9|[/tex]

[tex]d=2.9[/tex]

Therefore, The distance between  -6.2 and -9.1 is 2.9.

Answer:

A. 7.2 centimeters

Step-by-step explanation:

The length of the base is 7.2 centimeters. The area of a rectangle is length*width

The length is unknown but the area is known. To find the length, all we have to do is divide the area from the height.

The working is as follows :

Area = 90 cm²

Height = 12.5 cm

Length = ?

Length = Area ÷ Height

= 90 ÷ 12.5

= 7.2cm

The length of the base of the rectangle is found by dividing the area by the height, which gives 7.2 centimeters.

The subject is about finding the length of the base of a rectangle given its area and height. The formula to find the area of a rectangle is Area = Length x Width. From the question, we know the Area is 90 square centimeters and the height (which can also be considered as the Width) is 12.5 centimeters. Therefore, we can arrange the formula to solve for Length: Length = Area / Width.

Substituting the given numerical values we find: Length = 90 / 12.5 = 7.2 centimeters. So, the correct answer is 7.2 centimeters (Option A).

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Answer:

r=2

Step-by-step explanation:

Answer:

     x =13/16

Step-by-step explanation:

2(4-8x)+6=1

2*(4-8x) + 2*3 =1

2 ( 4 - 8x + 3 ) = 1

2 * ( 7- 8x ) =  1

2* 7 - 2 * 8x = 1

14 - 16x = 1

   - 16x = 1-14

   -16x = -13

       x = -13 /- 16

       x =13/16

Answer: 19. UQTX and UQRV

              20. TSWX and TSRQ

               21.  XTQU and XTSW

              22.  VWXU and VWSR

Step-by-step explanation:

The planes are the faces of the box.

19) QU intersects the left side and the front of the box, which is planes UQTX and UQRV

20) TS intersects the back and the bottom of the box, which is planes TSWX and TSRQ

21) XT intersects the left side and the back of the box, which is planes XTQU and XTSW

22) VW intersects the right side and the top of the box, which is planes VWXU and VWSR

The two planes that intersect in the given line are QTS and TUV.

In order to determine two planes that intersect in a given line, we can start by looking at the notation provided. Here, the given line is represented by the points 19.QU, 20.TS, 21.XT, and 22.VW. We can identify two planes that intersect in this line by observing the common points shared between them.

By analyzing the given line notation, we can see that the points U, T, and V are common to all four pairs of points, indicating that these points lie on the intersection of two planes. Therefore, the two planes that intersect in the line 19.QU 20.TS 21.XT 22.VW are the planes containing points QTS and TUV.

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Answer:

D:QR+RS=QS

Step-by-step explanation:

We are given that

If point A, B and C are collinear, B is between A nd C, then AB+BC=AC

Points Q, R and S are collinear and R is  between Q and S.

We have to find the conclusion about given statement.

If R lie between Q and R

Then, QR+RS=QS (segment addition property)

Because point Q, R and S are collinear.

Therefore, option D is true.

Answer:D:QR+RS=QS