find the value of y when x equals 18.

x - 7y= -17

Answer:

i. Area(A)=L×B

24.5m×18

441m²

Answer:

y = x - 1

Step-by-step explanation:

The formula for slope-intercept form is:

y = mx + b

m = slope

b = y-intercept

Slope is equal to rise over run...Let's take points (1,0) and (2,1) for example, see how if you add 1 to (1,0) it turns to (2,1)? This means the slope is 1.

The y-intercept is where x is equal to 0. Look at point (0,-1). X is zero here, and y is -1. This means that the y-intercept is -1.

The final equation would then be:

y = x - 1

(You typically don't write the 1 in front of the x if 1 is the slope)

Hope this helps!!

- Kay :)

Answer:

6 ; 24 ; 5.4 ; 24.6

Step-by-step explanation:

Given that:

Number of samples from each high school = 30

Proportion of students from high school A = 20%

Proportion of students from high school B = 18%

Number of sample A ; n(A) = 30

Proportion of sample A ; p(A) = 0.20

Number of sample B ; n(B) = 30

Proportion of sample B ; p(B) = 0.18

1.)

n(A).p(A) = 30 * 0.20 = 6

2.)

n(A). (1 - p(A))

30 * (1 - 0.20)

30 * 0.8 = 24

3.)

n(B).p(B) = 30 * 0.18 = 5.4

4.)

n(B). (1 - p(B))

30 * (1 - 0.18)

30 * 0.82

= 24.6

Shape of sampling distribution is not approximately normal ;

Both nApA and nBpB are < 10

Answer:

B) 40

Step-by-step explanation:

2:10    2 out of 10

40:200      40 out of 200

Answer:

9 11/12

Step-by-step explanation:

4(x)=12

x=3

3 1/4=3 3/12

3(x)=12

x=4

6 2/3=6 8/12

3 3/12+6 8/12=9 11/12

Answer:

9[tex]\frac{11}{12}[/tex]

Step-by-step explanation:

3[tex]\frac{3}{12}[/tex] + 6 [tex]\frac{8}{12}[/tex]

Answer:

i tried looking it up but i just got this far

Step-by-step explanation:

Answer:

x = 54

Step-by-step explanation:

These are corresponding angles assuming that both transversals are parallel. Since these angles are corresponding, they must be congruent which means that both measures are the same.

Now the basic algebra can be done to find x:

(x + 12)° = 66°

(x)° = (66 – 12)°

(x)° = (54)°

x = 54

Answer:

Alright the answer is, -11/2 (Exact Form) Or -5.5 (Decimal) Or -5 1/2 (In Mixed Number Form.

Answer: The angle of elevation of the sun [tex]=64.40^{\circ}[/tex]

Step-by-step explanation:

According to the trigonometry,

In a right triangle,

[tex]tan A=\dfrac{Perpendicular}{Base}[/tex]

Let angle of elevation of the sun = x

From the given figure, Perpendicular = 286 feet

Base = 137 feet

[tex]\tan x =\dfrac{286}{137}\\\\ \tan x = 2.0876\\\\ x=\tan^{-1}(2.0876)\\\\ x=64.40^{\circ}[/tex]

The angle of elevation of the sun [tex]=64.40^{\circ}[/tex]

Answer:

$19.35

Step-by-step explanation:

it takes two answers to mark someone brainliest so mark him now

Answer:

it's answer is 8 / 3

Step-by-step explanation:

given

[tex]6 \ \: \frac{3}{4} \div 1 \frac{2}{3} \\ = \frac{6 \times 4 + 3}{4} \div \frac{1 \times 3 + 2}{3} \\ = \frac{27}{4} \div \frac{5}{2} \\ = \frac{27}{4} \times \frac{2}{5} \\ = \frac{27}{10} [/tex]

Answer:

it's answer is 8 /3.

Hope it helps

Answer:

She can read 24 pages in one hour.

Step-by-step explanation:

[tex]\frac{1}{5}*2[/tex] = [tex]\frac{2}{5}*60pages = 24pages[/tex]

hope this helps, good luck :)

Step-by-step explanation:

1/5 * 60 = 12 pages read in 1/2 hour

there are 2 half hours in an hour

so

12*2 = 24 pages in one hour.

Answer: 2 1/6

Step-by-step explanation:

13/6 simplified is 2 1/6

Answer:

The zeroes are: -3 and -2

Step-by-step explanation:

f(x) = x² + 5x + 6

This is the in the format...

ax² + bx + c

To find the zeroes of a function, you must find what two numbers that add to B but multiply to C. In this case, you have to find two numbers that add to 5 but multiply to 6.

The two numbers are...

3 + 2 = 5 (This is correct because the two numbers add are equal to B)

3 x 2 = 6 (This is correct because the two numbers multiplied together are equal to C)

You then know that you have ( x + 3 ) and ( x + 2 )

Please do not get confused, the answers ARE NOT 3 and 2. You have to set the zeroes equal to 0.

Here's what I mean by that...

x + 3 = 0

Subtract 3 on both sides...

x = -3

The other zero...

x + 2 = 0

Subtract 2 on both sides...

x = -2

Your answers are x = -2 and x = -3, make sure you always set your answers to zero.

Hope this helps!

Answer:

47.87

.................

Answer:

x/2-20=22

440 is your answer

Step-by-step explanation:

=========================================================

Explanation:

Notice how EC = 5 doubles to BC = 5+5 = 10

So the larger quadrilateral (ABCD) has side lengths that are exactly twice as long compared to the smaller quadrilateral's sides. We can say the scale factor is 2.

This must mean that side FG = 4 doubles to 4*2 = 8, which is the length of side AD. So that's how we get y = 8.

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

Extra info:

Length of AD, y = 8

Two quadrilaterals are similar if their corresponding angles are equal and also their corresponding sides must be proportional.

Given,

EC = 5

FG = 4

BE = 5

AD = y

ABCD ~ FECG,

then ratio of the corresponding sides will be equal.

BC/AD = EC/FG

(BE + EC)/AD = EC/FG

(5 + 5)/y = 5/4

10/y = 5/4

5y = 40

y = 40/5

y = 8.

Hence, 8 is value of y that is length of AD.

Learn more about similar quadrilaterals here:

https://brainly.com/question/26991730

#SPJ5

Answer:

Step-by-step explanation:

A lot to answer here, so lets get straight into it.

2y + 8 for y = -2

We just need to substitute :

2(-2) + 8

-4 + 8

4

-5x + 6 for x = -8

Substitute :

-5(-8) + 6

40 + 6

46

3r - 2s + 12 for r = 10 and s = 4

Substitute :

3(10) - 2(4) + 12

30 - 8 + 12

22 + 12

34

6y - 4x - 9 for x = 6 and y = -3

Substitute :

6(-3) - 4(6) - 9

-18 - 24 - 9

-42 - 9

-51

A number t decreased by 13

t - 13

Six times a number y

6y

Three more than four times a number p

4p + 3

Two times a number v decreased by 7

2v - 7

Six times the sum of seven and a number x

6(7 + x)

-8b - 10b + 7

-18b + 7

13 + 7t - 9

13 - 9 + 7t

4 + 7t

-9n - 8m + 8 - 3n + 6m - 2

-9n - 3n = -12n

-8m + 6m = -2m

8 - 2 = 6

-2m - 12n + 6

-5x + 3y + 9x + 7

-5x + 9x = 4x

3y = 3y

7 = 7

4x + 3y = 7

-2y + 4x - 3y + 6x - 12 for x = 2 and y = -4

Substitute :

-2(-4) + 4(2) - 3(-4) + 6(2) - 12

8 + 8 + 12 + 12 - 12

16 + 12 + 12 - 12

28 + 12 - 12

40 - 12

28

Answer:

Zeros are x = 1.5, -2.5

Step-by-step explanation:

Given function is,

F(x) = 4x² + 4x - 15

      = 4(x² + x - 3.75) [Since, intercept form of a quadratic equation is the factored form of the function]

F(x) = 4(x² + 2.5x - 1.5x - 3.75)

      = 4[x(x + 2.5) - 1.5(x + 2.5)]

      = 4(x - 1.5)(x + 2.5)

For 'x' intercepts,

f(x) = 0

4(x - 1.5)(x + 2.5) = 0

x = 1.5, -2.5

Therefore, zeros of the given function are x = 1.5, -2.5.

Answer:

14.940306992% or 15%

Step-by-step explanation:

To solve for percent or price markdown, you first have to find the difference between the original selling price and the sale price.

$ 175.90 - $ 149.62 = $26.28

Then, find the percentage that $26.28 is of the original selling price. You are decreasing the original by this much to get to the sale price.

$26.28 / $175.90

= 0.14940306992

Finally, multiply by 100 and round up to reach a percentage.

15%

Answer: 50 minutes

Step-by-step explanation: a quarter to 5 is always 15 minutes from 5, 4:45. So 5:35-4:45 is 50.

28.04996

Step-by-step explanation:

a² + b² = c²

(2x)² + x² = 62²

4x² + x² = 3844

5x² = 3844

x² = 3844÷5

x² = 768.8

x =

[tex] \sqrt{768.8} [/tex]

x = 28.04996

I hope this is right. Apologies if it is not.

Answer:

3:2

Step-by-step explanation:

Hi there!

6:4 = 3:2

6*2=3

4*2=2

3:2

Answer:

You can try E, G, D, N, L, and F. I will help you if you have any questions on it, but I will give you a little hint that do the way I did. It will make it much more easy to understand it. Hope this helps, thank you :) !!

Answer:

solution

by using pythagorus theorem

h^2 =p^2 +b^2

[tex]3 \sqrt{2} \\ [/tex]

sine E =p/h

=

[tex]3 \sqrt{2} \div 10[/tex]

Answer:

The y-intercept of the function and the vertex of the function would change. (III and IV) This answer doesn't seem to be in the answer list (but there is proof for the answers below), though.

Step-by-step explanation:

(Notice that [tex]2f(x-4) = 2(x-4)^2.[/tex])

The domain of the function won't change because quadratics can all take all numbers as their input (which, by definition, is the domain of a function).

The range of the function won't change either, because we have just moved the function with 4 to the right (by substituting [tex]x[/tex] with [tex]x-4[/tex]) and multiplied the graph with respect to the y-axis by 2. The range will stay as all non-negative real numbers.

The y-intercept of the function will change, because for [tex]f(x)=x^2[/tex] it is [tex]y=0[/tex], while for [tex]y=2(x-4)^2[/tex] substituting [tex]x=0[/tex] doesn't give [tex]y=0[/tex]. (Instead, it gives [tex]y=32[/tex].)

The vertex of the function will change, because we have moved the function with 4 to the right and multiplied the graph with respect to the y-axis by 2: the vertex will have at the very least moved to the right.

Answer:

6x3

Step-by-step explanation:

2x3 =6

1x3=3

Answer:

on a number line or using a protractor to get 63 degrees u have to find wee the standard points are. like 90, 180, 260, 380 degrees. then use those to get closer.

Step-by-step explanation: