Determine whether x or y show direct variation. If so, identity the constant of variation. y=3x+2

Answer:

70

Step-by-step explanation

Find the diagram attached

Average = Sum of scores/sample size

Given the 7 numbers

20, 20, 20, 30, 80, 80, 80

Average = 50

5 = 20+20+20+30+80+80+80+x/8

x is the score of the 8th student

50 = 330+x/8

400 = 330+x

x = 400-330

x = 70

Hence the score of the 8th student is 70

Answer:

D = 1

Step-by-step explanation:

0.99949

round the answer so its 1

diameter = 1

Answer:

Step-by-step explanation:

A=a2=102=100m²

Answer:

From what I understood u write 2 ways of how many cookies hannah has

Maybe

36×2

36+36

Step-by-step explanation:

Answer:

x=4 y=6

Step-by-step explanation:

because they passing through the line and cut

hope it helps

Answer:

1.65

Step-by-step explanation:

100 pounds of the mixture = 1.36 * 100 = 136 dollars.

She uses 20 pounds of jelly beans that cost

20 * .20   = 4.00

136 - 4 = 132 dollars left for 80 pounds of sugar candies.

80 pounds = 132 pounds of sugar candies.

1 pound =  x

80/1 = 132 / x             Cross multiply

80x = 132

x = 132 / 80

x = 1.65 / per pound

Answer:

249.86 ft^2

Step-by-step explanation:

12.4 ft × 9.3 ft ÷ 2 = 57.66 sq ft(for triangle)

57.66+(12.4 ft×15.5 ft) = 249.86 sq ft

brainliest plz

B is standard form. y=1/2x + 2

Answer:

d.-7x+2y=9 that is the answer

First Method (Distributive Property)

(2m - 5m) (-5)

Rearrange the equation to make it easier.

(-5) (2m - 5m)

In distributive property, it's all about multiplying. The -5 goes to the 2m and the 5m. Like this: (-5 • 2m) - (-5 • 5m).

-10m + 25m

15m

Second Method

(2m - 5m) (-5)

Since 2m and 5m have the same variable, we can subtract them.

(-3m) (-5)

Multiply.

15m

15m is your answer. I hope this helps!

Answer:

14.8%

Step-by-step explanation:

Given data

Initial income=47

Final income=40

The change= 47-40

=7

Hence the percent increase is

% increase= Change/ initial*100

% increase= 7/47*100

% increase=0.148*100

% increase=14.8%

Answer:

x = -11

m<R: 22

m<Q: 94

Step-by-step explanation:

54 - 9x - 5 + 10 - 2x = 180

-11x + 59 = 180

-11x = 180 - 59

-11x = 121

x = -11

m<R:

10 - 2x

10 - 2(-11)

10 + 22

22

m<Q:

-9x - 5

-9(-11) - 5

99-5

94

Answer:

Im not sure Im sorry Im just trying to get points but I will send to a friend to help

Step-by-step explanation:

Answer:

78.5 inches

Step-by-step explanation:

A=(pi)r^2

divide diameter by 2 to get radius

radius = 5

3.14(5)^2 = 78.5

Answer:

At Z-Mart, after the discount it is 7/8 of the original price of 225,

at ABC Sports the final price is 200,

and at Bike World, after the discount it is 3/4 of the original price of 265

so

we multiply 225 by 7/8 to get 196.88,

which is lower than ABC Sports,

and then we multiply 265 by 3/4 to get 198.75, which is higher than Z-Mart

so Z-Mart or A) is correct.

Hope this helps! :D

Answer:

do 112 - 16x

Step-by-step explanation:

Answer:

Step-by-step explanation:

y - 6 ≥ -22

OR

y ≥ 16

Hope that helps!

9514 1404 393

Answer:

  (c) 5.4°

Step-by-step explanation:

We can simply determine the difference between the angles of the vectors:

  arctan(8/-5) -arctan(8/-4) = 122.005° -116.565° = 5.440°

The angle between the vectors is about 5.4°.

__

Alternate solutions

1) We could also determine the angle of their ratio.

  u/v = (-5 +8i)/(-4 +8i) = (-5 +8i)(-4 -8i)/(4² +8²) = (84 +8i)/80 = 1.05 +0.1i

  angle = arctan(0.1/1.05) = 5.440°

__

2) Tan(a-b) = (tan(a)+tan(b))/(1 -tan(a)(tan(b))

  tan(∠u -∠v) = ((tan(∠u) -tan(∠v))/(1 +tan(∠u)tan(∠v))

  = (-1.6 -(-2))/(1 +(-1.6)(-2)) = 0.4/4.2

  ∠u -∠v = arctan(2/21) = 5.440°

Answer:

11 inches

Step-by-step explanation:

Volume of a box is:

[tex]l * w * h[/tex]

[tex]8 * 3 * h = 264\\\\24*h=264\\\\\frac{24*h=264}{24} \\\\\boxed{h=11}[/tex]

The height is 11 inches.

Hope this helps.

Volume of the box = LWH.

Let V = 264

264 = (8)(3)(H)

264 = 24H

264 ÷ 24 = H

11 = H

The height of the box is 11 inches.

Answer:

Step-by-step explanation:

Since each angle is different it is scalene. Since all angles are less than 90 degrees it is acute.

So this is a Scalene Acute triangle.

Answer: Scalene Acute

Step-by-step explanation:

An acute triangle has all three angles less than 90 and a scalene triangle has no equal sides.

Answers:

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Explanations:

Answer:

110

Step-by-step explanation:

I would put 7c and 9t because c would mean you're putting car down for both numbers on the first question...

7c + 9t

7(8) + 9(6)

56 + 54

110

Answer:

false

Step-by-step explanation:

The value of |−37| is 37

however, since the negative sign is in front of the absolute value,

−|−37| = -37

Therefore,

−|−37| does not equal 37

The given statement −|−37| = 37 is false.

Given that, −|−37| = 37.

We need to whether the given statement is true or false.

The absolute value of a variable x is represented by |x| which is pronounced as 'Mod x' or 'Modulus of x'. 'Modulus' is a Latin word, which means 'measure'. Absolute value is commonly referred to as numeric value or magnitude. The absolute value represents only the numeric value and does not include the sign of the numeric value. The modulus of any vector quantity is always taken as positive and is its absolute value.

Now, |−37|=37

So, -|−37|=-37

Therefore, the given statement is false.

To learn more about an absolute value visit:

https://brainly.com/question/1301718.

#SPJ2

Answer:

2x+1+4x-19=180, 6x-18=180, 6x=198, x=33

Answer:

3x^2+7x-20

Step-by-step explanation:

Answer:

expand the brackets

3x^2 + 7x -20

Step-by-step explanation:

(3x-5)(x+4)

= 3x^2 + 12x - 5x + 20

= 3x^2 + 7x + 20