x² + 2x – 1 = 0 in English words.

Answers

Answer 1

Answer:

x squared plus two times x minus one = zero.

Step-by-step explanation:

(This is a Quadratic equation in the variable x).

Answer 2

Answer:

One less than the sum of square of a number  and twice the number is 0

Step-by-step explanation:

[tex]x^2+ 2x - 1 = 0[/tex]

x represents any number. x^2 represents square of a number

2x represents twice the number

[tex]x^2+2x[/tex] can be written as sum of square of a number  and twice the number

[tex]x^2+2x-1[/tex]

One less than the sum of square of a number  and twice the number

[tex]x^2+2x-1=0[/tex]

One less than the sum of square of a number  and twice the number is 0


Related Questions

Alex and Alicia are twins. Kevin is 5 years older than the twins. Their ages total 53. How old are the twins?

Answers

Let 2a=Alex and Alicia’s age and a=Alex or Alicia’s age
And k=Kevin’s age
a+5=k
2a+k=53

And to solve use substitution since we already know what k is

2a+(a+5)=53
2a+a+5=53
3a+5=53
3a=48
a=16

And just in case you wanted to know if needed it

16+5=k
21=k

Alex is 16, Alicia is 16 and Kevin is 21

What is the value of -3+8 when x=4

Answers

-3+8 equals 5.
That is the answer.

which of the two functions below has the smallest minimum y-value f(x)=4(x-6)^4+1 g(x)2x^3+28

Answers

Answer:

The function g(x) has smallest minimum y-value.

Step-by-step explanation:

The given functions are

[tex]f(x)=4(x-6)^4+1[/tex]

[tex]g(x)=2x^3+28[/tex]

The degree of f(x) is 4 and degree of g(x) is 3.

The value of any number with even power is always greater than 0.

[tex](x-6)^4\geq 0[/tex]

Multiply both sides by 4.

[tex]4(x-6)^4\geq 0[/tex]

Add 1 on both the sides.

[tex]4(x-6)^4+1\geq 0+1[/tex]

[tex]f(x)\geq 1[/tex]

The value of f(x) is always greater than 1, therefore the minimum value of f(x) is 1.

The minimum value of a 3 degree polynomial is -∞. So, the minimum value of g(x) is -∞.

Since -∞ < 1, therefore the function g(x) has smallest minimum y-value.

Final answer:

The function f(x)=4(x-6)^4+1 has the smallest minimum y-value as its minimum value can be directly located at y=1 while g(x)=2x^3+28, being a cubic function, continues infinitely in the negative direction.

Explanation:

In this mathematical problem, we are tasked to determine which of the functions, f(x)=4(x-6)^4+1 or g(x)=2x^3+28, has the smallest minimum y-value. Each of these functions represent distinct types of polynomials which have different properties. The function f(x) is a quartic function that is even, or symmetric around the y-axis, while g(x) is a cubic function.

The minimum value of f(x) can be determined directly by setting the expression (x - 6)^4 to 0, yielding the minimum value 1 because any real number to the power of 4 is always non-negative and the smallest non-negative number is 0. For cubic functions like g(x), they do not have absolute minimum or maximum. They go from negative to positive infinity as x ranges over all real numbers. Therefore, the function f(x)=4(x-6)^4+1 has a smaller minimum y-value.

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(Pictures included, pls help)

Carlos draws a transversal, t, on two parallel lines AB and CD, as shown below:

He makes the following table to prove that the alternate interior angles are equal:

Which is The missing justification?

A) Opposite Interior Angles Are congruent when parallel lines are intersecting by a transversal

B) Vertical Angles Formed By Two Intersecting Segments Are Congruent

C) Adjacent Angles Formed By Two Interesting Segments Are Supplementary

D) Opposite Exterior Angles Are Congruent When Parallel Lines Are Intersected By A transversal​

Answers

Answer:

Option B

Step-by-step explanation:

When two intersecting lines cut each other they form four angles. these two pair of angles are called opposite angles or vertical angles. The vertical angles formed by two intersecting segments are equal.

Thus option B is correct: The vertical Angles Formed By Two Intersecting Segments Are Congruent !

Answer:

B.

Step-by-step explanation:

When you intersect two lines, the angles opposite by the intersection vertex has the same measure. Generally, Those angles are called vertical angles.

In the figure, we have that angle 1 and angle 3 are vertical angles, then both have the same measure. So, the correct option is B) Vertical Angles Formed By Two Intersecting Segments Are Congruent.

A florist makes a bouquet using 4 roses, 5 carnations, and 3 daffodils.

write the ratio of carnations to daffodils in three different ways.

Answers

Answer:

5:3

5 to 3

3/5

There are three ways to write numbers as ratios

As a ratio:

x:y

As a word sentence:

x to y

As a fraction:

x/y

Answer:

The ratio of carnations to daffodils in three different ways are 5/3, 5:3 and 5 to 3.

Step-by-step explanation:

Given information:

Number of roses = 4

Number of carnations = 5

Number of daffodils = 3

We need to write the ratio of carnations to daffodils in three different ways.

The three different ways to write as ratio are

1. Fraction

[tex]\frac{x}{y}[/tex]

2. Ratio using colon

[tex]x:y[/tex]

3. Word form

x to y

The ratio of carnations to daffodils  is

[tex]\frac{\text{Number of carnations}}{\text{Number of daffodils}}=\frac{5}{3}[/tex]

It can be written as 5:3 and 5 to 3.

Therefore the ratio of carnations to daffodils in three different ways are 5/3, 5:3 and 5 to 3.

is x^2 = 55 irrational or rational

Answers

Answer

I think its Rational

Step-by-step explanation:

Answer:

Irrational

Step-by-step explanation:

A rational number can be expressed in the form

[tex]\frac{a}{b}[/tex] where a and b are integers

Given

x² = 55 ( take the square root of both sides )

x = ± [tex]\sqrt{55}[/tex] ← irrational

[tex]\sqrt{55}[/tex] cannot be expressed as a rational number

What is the name of ostrich's meat?​

Answers

Answer:

Ostrich meat is a "red meat" similar in color and taste to beef. However, it is lower in fat grams per serving compared to chicken and turkey.

Step-by-step explanation:

Hope this helped??!! :3

Masha had 200 scoops of ice cream and Liz had 180 scoops. After they each ate an equal amount of scoops, the ratio of Masha’s scoops to Liz’s scoops was 3:2. How many scoops did each of them eat?

Answers

Answer:

Each of them eat 140 scoops.

Step-by-step explanation:

Let x be the amount eaten by each of them,

Given,

The initial ice cream Masha has =  200 scoops

Final ice cream Masha has = ( 200 - x ) scoops

while the initial ice cream Liz has = 180 scoops,

Final ice cream Liz has = (180-x) scoops,

According to the question,

[tex]\frac{200-x}{180-x}=\frac{3}{2}[/tex]

[tex]400-2x=540-3x[/tex] ( by cross multiplication )

[tex]-2x=140-3x[/tex]       ( Subtracting 400 on both sides )

[tex]x=140[/tex]  ( adding 3x on both sides )

Hence, each of them eat 140 scoops.

Answer: 140 scoops.

Hope this helped!

two numbers are in the ratio of 4:11. their sum is 60. What is the greater of those two numbers?

Answers

Answer:

The numbers are    44 (greater) and 16 (  smaler)

Step-by-step explanation:

4x+11x =60

15x = 60

x=4

4*4=16

11*4=44    

44+16 = 60

4/11 =0.363636......

16/44= 0.363636......

What is the value of f (x)=16^x when x=1/2 ? A. 2 B. 4 C. 8 D. 32

Answers

Answer:

B

Step-by-step explanation:

Using the rule of exponents

[tex]a^{\frac{m}{n} }[/tex] ⇔ [tex]\sqrt[n]{a^{m} }[/tex]

Given

f(x) = [tex]16^{x}[/tex], then when x = [tex]\frac{1}{2}[/tex]

f([tex]\frac{1}{2}[/tex] ) = [tex]16^{\frac{1}{2} }[/tex] = [tex]\sqrt[2]{16}[/tex] = 4

What is the x-intercept of the line with the equation y= 1/2 x-3​

Answers

Answer:

The x intercept is 6

Step-by-step explanation:

To find the x intercept, set y =0 and solve for x

y= 1/2 x-3​

0 = 1/2x -3

Add 3 to each side

0+3 = 1/2 x-3+3

3 =1/2x

Multiply each side by 2

2*3 =1/2x*2

6 =x

The x intercept is 6

Last year you mowed grass and shoveled snow for 10 households. You earned $200 per household
mowing for the entire season and $180 per household shoveling for the entire season. You earn a total of
$1880 last year. Write and solve an algebraic model to determine the number of households you mow and
shovel for

Answers

The answer is 4 household you now and 6 household you shovel
The work is shown in the pic

Answer:

what ever it said above

Step-by-step explanation:

What is the surface area of the figure?

Answers

Answer:

0.6625 in²

Step-by-step explanation:

The surface area of this figure will be the area of the base added to area of the triangles

Area of the 4 triangles

Area of a triangle is given by ;

[tex]A=\frac{1}{2} *b*h[/tex]

where b is the base length and h is the height of the triangle

Area of 1 triangle

Given base length as 0.25 inches and height is 1.2 inches.

[tex]A=\frac{1}{2} *0.25*1.2=0.15\\[/tex]

Area of all 4 triangles

- multiply the area of one triangle by 4

- 0.15*4=0.6 in²

Area of the base

The base is a square of length 0.25 inches

Area of a square=length×length

[tex]A=l*l\\A=0.25*0.25=0.0625in^{2}[/tex]

Total surface area

Total surface area= Area of the triangles + Area of the base

[tex]=0.6+0.0625=0.6625in^{2}[/tex]

The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation.
 
 
 
Time (hours) Distance (miles)
4 260
6 390
8 520
10 650

Answers

The rate of change is 65. It means that you or the vehicle is traveling 65 miles per hour

the number a is a number less than -3. what is the range of possible values of 1/a squared​

Answers

Answer:

Numbers less than 1/9.

Step-by-step explanation:

We are given a number [tex]a[/tex] and that it is less than -3.

That is [tex]a<-3[/tex].

What is the range of possibles for [tex]\frac{1}{a^2}[/tex]?

So if [tex]a<-3[/tex] then [tex]a^2>9[/tex].

*I knew to flip inequality here because if I square any number less than -3 it was going have a value bigger than 9.

If [tex]a^2>9[/tex], then [tex]\frac{1}{a^2}<\frac{1}{9}[/tex].

*When taking reciprocal flip the inequality.

Let's do a test:

Let's see if we pick a number less than -3 that we get a result that is less than 1/9 after we find the reciprocal of the square of the number we choose.

Let's pick -4.

-4 is less than -3

Square -4, you get 16  and 16>9.

The reciprocal of 16 is 1/16 and 1/16<1/9.

So 1/16 is a number less than 1/9.

Final answer:

The range of possible values for 1/a squared is all positive numbers greater than 0.

Explanation:

The range of possible values of 1/a squared can be determined by considering the range of values for a. Since a is a number less than -3, it means that a is a negative number less than -3. To find the range of possible values for 1/a squared, we need to consider the range of possible values for a squared. Since a squared is the square of a negative number, it will always be positive. Therefore, the range of possible values for 1/a squared is all positive numbers greater than 0.

Using the horizontal line test, which of the following can be concluded about
the inverse of the graph of the function below?

Answers

A horizontal line test on the inverse of a function yields the same results as a vertical line test on the function itself, and the conclusion is the same as in paragraph two.

A vertical line test looks for one or more intersections with a specified set of relations.  We can conclude that the relation is a function if there is only one intersection with the relation at ANY point in its domain.  If a VERTICAL line intersects the function several times, it is not a function.

Here, we see that the vertical line test on the depicted relation produces just one intersection at any point in the domain of the relation, hence we infer that the graph depicts a function.

A function's inverse is a reflection of the function about the y=x line.  The outcome is the same as swapping the x and y axes.

As a result, a horizontal line test on the inverse of a function yields the same results as a vertical line test on the function itself, and the conclusion is the same as in paragraph two.

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What is the equation of the line (in slope-intercept form) that passes through the point (5,−1) and is parallel to the line y=2x−7

Answers

Answer:

y = 2x - 11

Step-by-step explanation:

[tex]\text{Let}\\\\k:y=m_1x+b_1\\\\l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\\\===============================[/tex]

[tex]\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-slope\\b-y-intercept\\\\==========================[/tex]

[tex]\text{We have the equation of a line:}\ y=2x-7\to m_1=2.\\\\\text{The slope of a parallel line:}\ m_2=m_1=2.\\\\\text{We have the equation:}\\\\y=2x+b\\\\\text{Put the coordinates of the point (5, -1) o the equation:}\\\\-1=2(5)+b\\-1=10+b\qquad\tex\text{subtract 10 from both sides}\\-11=b\to b=-11\\\\\text{Finally:}\\\\y=2x-11[/tex]

If the equation of a circle is (x + 5)2 + (y - 7)2 = 36, its center point is
A(5.7)
B(-5,7)
C(5-7)

Answers

the correct answer is B) (-5, 7), which represents the center point of the circle.

The equation of a circle in standard form is given by:

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

Where:

- (h, k) is the center of the circle

- r is the radius of the circle

Comparing this standard form to the given equation [tex]\( (x + 5)^2 + (y - 7)^2 = 36 \)[/tex], we can identify the center and radius of the circle.

For the given equation:

- Center of the circle: (-5, 7) because the term [tex]\( (x + 5)^2 \)[/tex] means the x-coordinate of the center is -5, and the term [tex]\( (y - 7)^2 \)[/tex]means the y-coordinate of the center is 7.

- Radius of the circle: [tex]\( r = \sqrt{36} = 6 \)[/tex] because the equation is already in the form [tex]\( r^2 = 36 \), so \( r = 6 \).[/tex]

So, the correct answer is B) (-5, 7), which represents the center point of the circle.

What is the solution of the equation x2 + 8x + 5 = 0?

Answers

Answer:

x = -0.683 (3dp)

x = -7.317 (3dp)

Step-by-step explanation:

Step 1: Apply the quadratic formula

(-b±([tex]\sqrt{b^{2}-4ac}[/tex])) / 2a

a = 1 (x²)

b = 8 (8x)

c = 5 (5)

(-8±([tex]\sqrt{8^{2}-4 x 1 x 5}[/tex])) / 2 x 1

Step 2: Simplify

(-8±([tex]\sqrt{44}[/tex])) / 2

Step 3: Solve

You need to replace the ± with first a + and then a -.

(-8+([tex]\sqrt{44}[/tex])) / 2 = -0.683 (3dp) = x

(-8-([tex]\sqrt{44}[/tex])) / 2 = -7.317 (3dp) = x

Hope this helps!

Kareem walks 6 blocks east and 2 blocks north to school. After school, he walks 3 blocks west and 3 blocks north to the library. Now how many blocks is he far from his home?

Answers

Answer:

Yep your correct, 3 east 5 north.

Step-by-step explanation:

He first walks 6 east and 2 north

He then walks 3 west and 3 north

East and west are opposites so 6-3=3 east (not west because he walked more blocks east than west)

North and north are the same so 2+3=5 north

PLEASE GIVE BRAINLIEST

What are the solutions of the equation (x + 2)2 + 12(x + 2) - 14 = 0? Use u substitution and the quadratic formula to solve
x=-8+55
x--653
X=-45_2
x = -2+52

Answers

Answer:

[tex]\large\boxed{x=-8\pm5\sqrt2}[/tex]

Step-by-step explanation:

[tex](x-2)^2+12(x+2)-14=0\\\\\text{Substitute}\ (x+2)=t:\\\\t^2+12t-14=0\qquad\text{add 14 to both sides}\\\\t^2+2(t)(6)=14\qquad\text{add}\ 6^2=36\ \text{to both sides}\\\\\underbrace{t^2+2(t)(6)+6^2}=14+36\qquad\text{use}\ (a+b)^2=a^2+2ab+b^2\\\\(t+6)^2=50\Rightarrow t+6=\pm\sqrt{50}\qquad\text{subtract 6 from both sides}\\\\t=-6\pm\sqrt{25\cdot2}\\\\t=-6\pm5\sqrt2[/tex]

[tex]\text{we're going back to substitution}\\\\x+2=-6\pm5\sqrt2\qquad\text{subtract 2 from both sides}\\\\x=-8\pm5\sqrt2[/tex]

Use the quadratic formula to solve the equation
2x^2- 3x+8 = 0

Answers

Answer:

Look at pic.

Step-by-step explanation:

Hope this helps!

Final answer:

Using the quadratic formula, the roots of the equation 2x^2 - 3x + 8 = 0 are found to be complex numbers. The roots are: x = 3/4 ± sqrt(-55) / 4.

Explanation:

The subject of this question is the solution to the quadratic equation using the quadratic formula. The quadratic formula is used to find the roots of a quadratic equation, which is an equation of the form ax^2 + bx + c = 0.

The quadratic formula is given by: x = [-b ± sqrt(b^2 - 4ac)] / (2a)

For your equation, 2x^2 - 3x + 8 = 0, the values are a = 2, b = -3 and c = 8.

We substitute these values into the quadratic formula:

x = [3 ± sqrt((-3)^2 - 4*2*8)] / (2*2)

After carrying out the operations, we obtain:

x = [3 ± sqrt(9 - 64)] / 4

The term inside the square root is negative, meaning that the roots of the equation are complex numbers:

x = [3 ± sqrt(-55)] / 4

The answer to the equation is: x = 3/4 ± sqrt(-55) / 4

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Creamy Brand ice cream costs $5.50 per gallon, How much would it cost you to buy 2.25 gallons of ice cream for a party if the total tax on your order is $0.72?

Answers

Answer:

$13.00

Step-by-step explanation:

so you multiply $5.50 by 2.25 gallons

5.50

x 2.25 =

      2750+1100+1100= 12.3750

then you round it off which will make your answer $12.38

then to find out how much it will be with the taxes you add $12.38 and .072 to it to make the total for the ice cream $13.00

Average of 6 numbers is 4, if the average of 2 numbers is 2 what is the average of other 4

Answers

Answer:

5

Step-by-step explanation:

Let's just pretend the 6 numbers are: a,b,c,d,e,f.

Then (a+b+c+d+e+f)/6 =4 (given by first statement.)

Let's pretend the average of 2 numbers is 2 means they are talking about the a and b.

So (a+b)/2=2.

Now we want to find (c+d+e+f)/4 as requested by their question.

So first step multiply both sides of our first equation by 6 giving us:

a+b+c+d+e+f=24

So the second step multiply both sides of our second equation by 2 giving us:

a+b=4.

Now if a+b+c+d+e+f=24 and a+b=4, then c+d+e+f=20 since 20+4=24.

So the average of the four numbers c,d,e, and f is 20/4=5.

Karen buys 2 packages of printer paper for $5.79 each, a box of pens for $9.25. a box of paperclips for $2.29, and a
calendar for $12.50. If a 6.25% sales tax is added, what is the total cost of Karen's purchase?
(SHOW WORK)

Answers

Answer: I think its $37.84625 according to the working shown :)

Step-by-step explanation:

cost of paper= $5.79, hence 2 is 2 x 5.79= 11.58

pens= $9.25

paperclips= $2.29

calendar= $12.50

Total= 11.58+9.25+2.29+12.50= 35.62

6.25% sales tax on total purchase= 6.25/100 x 35.62= $2.22625

Adding the sales tax: 35.62+2.22625‬= $37.84625‬‬

Answer:

$37.84625

Step-by-step explanation:

(5.79*2)+9.25+2.29+12.50=35.62

tax: 6.25% of total cost:

6.25/100 * 35.62=2.22625

total cost + tax

35.62+2.22625=37.84625

The graph represents function 1, and the equation represents function 2:
Function 2
y = 8x + 12
How much more is the rate of change of function 2 than the rate of change of function 1?
3

Answers

If there was a graphical representation, I would be happy to assist you.

So far a total of 48 tickets have been sold for the school play for a total revenue of $220. How many student tickets have been sold? Set up and solve a system of equations to solve the problem.
Adult = $7
Student=$3

Answers

Let x be the number of adult tickets and y be the number of student tickets.

From the first sentence we can set up both equations:

1) x + y = 48
2) 7x + 3y = 220

Rearrange #1 to isolate x:
x = 48 - y

Sub that into #2 and solve for y to get your answer:
7(48 - y) + 3y = 220
336 - 7y + 3y = 220
-4y = -116
y = 29

29 student tickets were sold.

2sqrt 27 + sqrt12 - 3 sqrt 3 -2 sqrt 12 what is the simplified form of the following expression​

Answers

Simplified form of expression is,

⇒ - 3√3

We have to given that,

An expression is,

⇒ 2√27 + √12 - 3√3 - 2√12

We can simplify it as,

⇒ 2√27 + √12 - 3√3 - 2√12

⇒ 2 √9×3 + √3×4 - 3√3 - 2√3×4

⇒ 2 × 3 √3 - 2√3 - 3√3 - 2 × 2√3

⇒ 6√3 - 2√3 - 3√3 - 4√3

⇒ - 3√3

Therefore, Simplified form of expression is,

⇒ - 3√3

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Final answer:

The expression simplifies to 4sqrt(3) after breaking down the square roots of 27 and 12 into 3√(3) and 2√(3), respectively, and combining like terms.

Explanation:

To simplify the expression 2√(27) + √(12) - 3√(3) - 2√(12), we should first simplify √(27) and √(12) individually.

Square root of 27 can be written as √(9*3). Since 9 is a perfect square, we get 3√(3). Similarly, √(12) can be simplified to √(4*3). As 4 is a perfect square, this simplifies to 2√(3).

Now, substituting back into the original expression, we get 2(3√(3)) + 2√(3) - 3√(3) - 2(2√(3)), which simplifies to 6√(3) + 2√(3) - 3√(3) - 4√(3).

Combining like terms, we obtain 6√(3) - 2√(3), which simplifies further to 4√(3).

Therefore, the simplified form of the original expression is 4√(3).

The vertices of a quadrilateral in the coordinate plans are known. How can the perimeter of the figure be found?

Answers

Answer:

The perimeter can be found by calculating lengths of sides using distance formula and then adding up the lengths

Step-by-step explanation:

If the vertices of a quadrilateral are known in the coordinate plane, the vertices can be used to determine the lengths of sides of quadrilateral. The distance formula is used for calculating the distance between two vertices which is the length of the side

[tex]d=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}}[/tex]

after calculating all the lengths of four sides using their vertices, they can be summed up to find the perimeter ..

Which number is equal to 10^4?
40
1,000
10.000
40.000

Answers

Answer:

10.000

Step-by-step explanation:

10^4 is equal to 10,000.

10^4 to the second power means that you have too add 4 zeros to the end of the number.

Since 10 already has a 0, you would add 3 more.

Therefore, the answer would be 10,000.

10^4 is the same as saying 10 x 10 x 10 x 10, which is equal to 10 000.

Other Questions
Phil Phoenix is paid on a monthly basis. For the month of January of the current year, he earned a total of $9,138. FICA tax for Social Security is 6.2% and the FICA tax for Medicare is 1.45%. The FUTA tax rate is 0.8%, and the SUTA tax rate is 5.4%. Both unemployment taxes are applied to the first $7,000 of an employee's pay. The amount of Federal Income Tax withheld from his earnings was $1,516.27. What is the amount of the employer's annual payroll taxes expenses for this employee? Gas station A has posted a chart that shows the price of gasoline in terms of the number of gallons. Gallons Price 3 9.15 5 15.25 721.35 Gas station B has an equation that represents the price, p, for gallons, g, of gasoline as p = $3.08g. Which gas station sells gasoline at a lower rate? What price does it charge? A. Gas station A sells gasoline at a lower rate. Its price is $3.08 per gallon. B. Gas station B sells gasoline at a lower rate. Its price is $3.05 per gallon. C. Gas station A sells gasoline at a lower rate. Its price is $3.05 per gallon. D. Gas station B sells gasoline at a lower rate. Its price is $3.08 per gallon. You want to have $ 150,000 in 18 years. How much do you have to deposit each month into an account that pays 3.5% APR? Which statement about a pair of units is true? A yard is shorter than a meter. Amile is shorter than a kilometer. A foot is shorter than a centimeter. An inch is shorter than a centimeter. Be sure to answer all parts. Nitric oxide (NO) reacts with molecular oxygen as follows: 2NO(g) + O2(g) 2NO2(g) Initially NO and O2 are separated in two different chambers connected by a valve. When the valve is opened, the reaction quickly goes to completion. Determine what gases remain at the end and calculate their partial pressures. Assume that the temperature remains constant at 25C. Initial conditions are as follows: NO: 3.90 L, 0.500 atm O2: 2.09 L, 1.00 atm Many medications introduced into the bloodstream cannot directly affect the neurons of the CNS because A) oligodendrocytes form a continuous myelin sheath around the axons. B) the endothelium of CNS capillaries forms a blood-brain barrier. C) the neurolemma is impermeable to most molecules. D) ependymal cells restrict the flow of interstitial fluid between the capillaries and the neurons. E) astrocytes form a capsule around neurons. B Extensive damage to oligodendrocytes in the CNS could result in When reviewers construct reviews, they need to Imagine a population that has 180 A1A1 individuals, 144 A1A2 individuals, and 175 A2A2 individuals. Male A1A1 is the preferred mate of females and gets all the matings. What would the genotype frequencies be for the A1A2 offspring of this population? Answer to 2 decimal places. PLEASE HELP!!!!!Mario sold concessions during the hockey tournament at the high school. He sold bottled water for $2.50 each and hamburgers for $5.50 each. By the end of the tournament, Marios sold 350 items for a total of $1,325. Which statements about the concession sales are true? Check all that apply.A-The variable x could represent the number of bottles of water sold.B-The variable x could represent the total sales amount for the bottled water.C-The variable y could represent the total sales amount for the hamburgers.D-The variable y could represent the number of hamburgers sold.E-The system of equations that could represent the concession sales is2.50x + 5.50y = 1,325x+y=350F-The system of equations that could represent this situation isx+y=1,325 Name four rules that will control or eliminate cavitation of a pump factor X^3-7x^2-5x+35 by grouping. What is the resulting expression Consider the reaction of 2-methyl-1,3-cyclohexadiene with HCl. Assuming that the reaction takes place at a very low temperature: (a) draw the intermediate and product structures, including any formal charges As part of the rehabilitation of the downtown area of a southern U.S. city, the Parks and Recreation Department is planning to develop the space below several overpasses into basketball, handball, miniature golf, and tennis courts. The initial cost is expected to be $150,000 for improvements which are expected to have a 20-year life. Annual maintenance costs are projected to be $12,000. The department expects 24,000 people per year to use the facilities an average of 2 hours each. The value of the recreation has been conservatively set at $0.50 per hour. At a discount rate of 3% per year, what is the conventional B/C ratio for the project? Amanda's family has a swimming pool that is 4 feet deep in their backyard. If the diameter is nearly 25 feet, what is the circumference of the pool? Express your answer to the nearest whole foot. Which compound is an unsaturated hydrocarbon?cyclobutaneisopropaneethynepentane All the fourth-graders in a certain elementary school took a standardized test. A total of 85% of the students were found to be proficient in reading, 78% were found to be proficient in mathematics, and 65% were found to be proficient in both reading and mathematics. A student is chosen at random. a. What is the probability that the student is proficient in mathematics but not in reading? b. What is the probability that the student is proficient in reading but not in mathematics? c. What is the probability that the student is proficient in neither reading nor mathematics? Many physical activities offer a chance to interact with others as teammates, training partners, or opponents. Describe one specific way you used appropriate personal, social, and ethical behavior while participating in physical activities this week. Use your examples to complete the chart: Quadrilateral ABCD is similiar to quadrilateral EFGH. The lengths of the three longest sides in quadrilateral ABCD are 20 feet, 18 feet, and 14 feet long. If the two shortest sides of quadrilateral EFGH are 6 feet long and 5 feet long, how long is the 4th side on quadrilateral ABCD? Two monkeys, one big and one is smaller with an arrow is pointing to smaller one The monkey > is ________. ( El mono > es ________. ) small - (pequeo) A high - (alto) B big - (grande) C low - (baja) D Calculate the arc length of GH in terms of pi.