The value of y varies directly with x, and y = -2 when x = -4. Find y when x = 8.

Answers

Answer 1

Answer:

y = 4

Step-by-step explanation:

8 ÷ -4 = -2

so, multiply each side by -2

-2 x -2 = 4

when x = 8, y = 4


Related Questions

Angles a and b are ertical angles the measure of angle a is 8x+1 and angle b is 21-2x find each angle measure

Answers

Answer:

Angle a = 17°

Angle b = 17°

Step-by-step explanation:

Angles a and b are vertical angles the measure of angle a is 8x+1 and angle b is 21-2x find each angle measure

Vertical angles are angles that are equal to each other

Step 1

We find x

a = b

Hence,

8x+1 = 21-2x

Collect like terms

8x + 2x = 21 - 1

10x = 20

x = 20/10

x = 2

Step 2

We find each angle

Angle a

8x+1

x = 2

Angle a = 8(2) + 1

= 17°

Angle b

21-2x

x = 2

21 - (2 × 2)

= 21 - 4

= 17°

Therefore:

Angle a = 17°

Angle b = 17°

Help me lol please and thank you

Answers

well the opposite of addition is subtraction
to find n move 27 to the other side which makes it negative
15+ (-27) =-12

4x + (-3) = -11
What is my answer can You please help me

Answers

Answer:

-2

Step-by-step explanation:

Let's solve your equation step-by-step

4x−3=−11

Step 1: Add 3 to both sides

4x−3+3=−11+3

4x=−8

Step 2: Divide both sides by 4

4x

4

=

−8

4

x=−2

Answer:

[tex]4x + ( - 3) = - 11 \\ 4x (- 3) = - 11 \\ 4x = - 11 + 3 \\ 4x = - 8 \\ x = \frac{ - 8}{4} \\ x = - 2[/tex]

How do long-term goals differ from short-term goals?

Answers

Step-by-step explanation:

Long-term goals require more patience than short-term goals do.

I hope it's helpful!

Milo wants to roll epoxy on his garage floor. In order to do this he needs to know the area of his rectangular-shaped garage. The measurements are 20+ (radical) 3 feet by 20+ (radical) 3 feet.

What is the area of his garage floor?
(Remember, the formula for the area of a rectangle is A = lw.)
Please help. I've been stuck on this problem. :)

Answers

Answer:

A

Step-by-step explanation:

i got it right on edge

The area of his garage floor Milo wants to roll epoxy is 403 + 40√3 ft².

What are the area and perimeter of a rectangle?

We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.

Given, Milo wants to roll epoxy on his garage floor.

The measurements are 20 + √3 feet by 20 + √3 feet.

Therefore, The area of his garage floor is,

= (20 + √3)×(20 + √3) ft².

= 400 + 20√3 + 20√3 + √3×√3 ft².

= 400 + 40√3 + 3 ft².

= 403 + 40√3 ft².

learn more about rectangles here :

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Han creates a scatter plot that displays the relationship between the number of items sold, x, and the total revenue, y, in dollars.
Han creates a line of best fit and finds that the residual for the point (12, 1,000) is 75. The point (13, 930) has a residual of -40.
Interpret the meaning of -40 in the context of the problem.

Answers

Answer:

In context of the problem, -40 means that 40 was the difference between the actual data, and the estimated data.

Step-by-step explanation:

Here -40 represent the difference between the actual data and the estimated data.

Given that,

Han creates a line of best fit and finds that the residual for the point (12, 1,000) is 75. The point (13, 930) has a residual of -40.

Based on the above information we can say that the -40 shows the difference of data.

Learn more: brainly.com/question/17429689

solve using they law of exponents
(2^4)^5

Answers

Answer:

2^20

Step-by-step explanation:

2^4x5

= 2^20

what is 2+2
A Fish
B 4
C 8
D 12

Answers

Answer:

Answer B.4

Step-by-step explanation:

I hope it's helpful!

Can someone help me

Answers

Step-by-step explanation:

the answer is B. lines 1 and 3 are perpendicular

I need help plz ASAP

Answers

1. Area of a rectangle = lw = 3(10) = 30 in squared

2. Area of a parallelogram = bh = 3(10) = 30 in squared (i’m pretty sure this is right, not sure tho)

3. Area of triangle = 1/2bh = 1/2 (6)(8) = 24 inch squared


Hope this helps!! :)

Answer:

1)  30 in.

A= wl

A=3·10

A=30

2) 30 in.

A=bh

A=10·3

A=30

3) 30 in.

A=hb/2

2=6·10/2

2=30

Help please i don’t understand

Answers

Answer:

B or C

Step-by-step explanation:

When you rotate 90 degrees counterclockwise the (y) becomes?

Answers

Answer:

Step-by-step explanation:

Rotations About The Origin

When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.

Find the value of x in the angle pair.

Answers

Answer:

x=30

Step-by-step explanation:

180-55=125

5x-25=125

125+25=150

5x=150

5/150=30

x=30

PLEASE HELP (LOOK AT THE PICTURE)
Which of the equations matches the line shown in the diagram?
A
B)
y=-x-1
C)
D)

Answers

Answer:

The answer should be D) y = 5/3x - 1/3

Step-by-step explanation: The slope is positive ruling out the negative slope answers leaving C and D, however D is the only answer to get the y intercept correct.

Solve the equation for z.
—8=—3/2 z

Answers

Answer:

           [tex]\bold{z=-5\frac13}[/tex]

Step-by-step explanation:

[tex]-8=-\frac32z[/tex]         {swap sides}

[tex]-\frac32z=-8[/tex]         {divide both sides by (-³/₂)}

[tex]z=-8\div(-\frac32)\\\\z=-8\times(-\frac23)\\\\z=-\frac{16}3=-5\frac13[/tex]

Plz help i will give

Answers

Answer:

The equation to be used is 4/8 × 8/12=1/3

PLEASE HELP ASAP!!

Which relationship is always correct for the angles x, y, and z of triangle ABC?
x + z = y
y + z = x
x + y + z = 180 degrees
x + y + z = 90 degrees

Answers

Answer :
y + z = x


Plz mark me as brainliest

The relationship between the angles of a triangle is y + z = x. Then the correct option is B.

What is the triangle?

The polygonal shape of a triangle has a number of sides and three independent variables. Angles in the triangle add up to 180 °.

The triangle ABC is shown. The sum of the interior angle of the triangle is 180°. Then the equation is given as,

∠BAC + y + z = 180°          ...1

The sum of the interior angle and exterior angle is equal to 180°. Then the equation is given as,

∠BAC + x = 180°        ...2

From equations 1 and 2, then we have

∠BAC + y + z = ∠BAC + x

y + z = x

The relationship between the angles of a triangle is y + z = x. Then the correct option is B.

More about the triangle link is given below.

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Davie and Horatio are riding their motorbikes on a scenic tour that is 80 miles long. Davie rides at 20 miles per hour and leaves 90 minutes before Horatio. How fast must Horatio ride to finish at the same time as Davie?
24 mph
24.5 mph
32 mph
33.3 mph

Answers

He would need to go 32 mph because if David is 1 hour and 30 min ahead he would be 30 miles in and would need 50 and that would be 2 and a half hours therefore leading Horatio needing to go 32 miles an hour for them to finish at the same time

The speed Horatio ride to finish at the same time as Davie is mathematically given as

X=32 mph

What is the speed Horatio ride to finish at the same time as Davie?

Question Parameter(s):

Davie and Horatio are riding their motorbikes on a scenic tour that is 80 miles long.

Davie rides at 20 miles per hour and leaves 90 minutes before

Generally, the equation for the speed Horatio   is mathematically given as

X=d/t

Therefore

X= (80)/(2.5)

X=32 mph

Read more about Arithmetic

https://brainly.com/question/22568180

What is the slope of the line below?

Answers

Answer:

-1/2

Step-by-step explanation:

slope=rise/run

rise is up or down

run is right or left

5/-10= -0.5= -1/2 or -5/10= -0.5= -1/2

the answer is -1/2

Find the rule solve for n.
X Y
4 12
6 18
7 n
12 36

Answers

The rule is x3 (times 3)

N = 21

Hopefully this helps

(20 Points)
y = 4(x + 6)2 + 2
O y = -4x² + 48x + 136
O y = 4x2 + 48x + 146
O y = x² - 48x + 146
O y = -14x2 – 48x – 146

Answers

Answer:

2nd option will be the answer (y=4x²+48x+146)

Step-by-step explanation:

y=4(x+6)²+2

y=4(x²+2*x*6+6²)+2 [(a+b)²=a²+2ab+b²]

y=4(x²+12x+36)+2

y=4(x²)+4(12x)+4(36)+2

y=4x²+48x+144+2

y=4x²+48x+146

For what value of q is the equation -13(q + 4) = 7q + 16

Answers

Answer:

Q = -3.4

Step-by-step explanation:

Our original equation is:       -13(q+4)=7q+16

if we simplify this, we get:     -13q-52=7q+16

Subtract 16 from both sides: -13q-68=7q

Add 13q to both sides to get:      -68=20q

divide the equation to get this:  -3.4=q

Write the integer values of x in the inequality: 5 < x < 9

pls help need it ASAP

Answers

Answer:

6,7,8

Step-by-step explanation:

You have to name the numbers that are bigger than 5 but smaller than 9.

hope this helps

Answer:

6, 7, 8

Step-by-step explanation:

Given

5 < x < 9

x cannot equal 5 or 9 but can equal the values in between, that is

x = 6, 7, 8

Q1. Peter bought 3slices of chicken pizza and 4 slices of mushroom pizza for a total of $12.50.
Mary bought 3 slices of chicken pizza and 2 slices of mushroom pizza for a total cost of $8.50.
What is the cost of one slice of chicken and one slice of mushroom?



PLS HELP

Answers

Answer: the cost of mushroom pizza is $2.00 dollars. The cost of chicken pizza is $1.50.

Hope this helped! Can I get Brainliest?

what about these 2 ?

Answers

Answer:

11. A) 12

12. D)11

Step-by-step explanation:

11. We substitute x with 12 in 3(x)-11.

3(12)-11=

36-11= 25

We substitute x with 12 for the second equation (x+13).

12+13=25

Both answers match so the answer for #11 is 12.

12.We substitute x with 11 in 4(x)-4.

4(11)-4=

44-4=40

We substitute x with 11 for the second equation (2(x)+18)

2(11)+18=

22+18=40

Both answers match so the answer for #12 is 11.

I need help with this, I’ll give brainliest!

Answers

Answer:

A

Step-by-step explanation:

Only graph A satisfies the domains provided

Find the equation of the line shown.
Pls helllppp

Answers

Answer:

what side is it asking for ? right or left

area of a square with 1m side is?​

Answers

Answer:

1 meter

Step-by-step explanation:

Okay so, all sides of a square are equal right? And is one side is 1 meter, then all of the sides are 1 meter. Your multiplying one by itself, making the answer pretty easy to find out.

how do i Solve 5p + 7 = 22

Answers

Answer:

p = 3

Step-by-step explanation:

22 - 7 = 15

5p = 15

p = 15 ÷ 5 = 3

22 - 7 = 15
5p divided by 15 = 3
P = 3

The total price for a computer and a
printer was $1039. If the computer
cost $750, how much did the printer
cost?

Answers

Answer:

$289

Step-by-step explanation:

If you know the cost of one of the two items, you can subtract that item from the total in order to find the price of the second item

So:   total price - computer price = printer cost

So:   $1039- $750 = $289

The printer is $289

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