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3 years ago

What is the value of y?

Mathematics

2 answers:

belka [17]3 years ago

6 0

Answer:

Step-by-step explanation:

y=(180º-72º)/2

y=108º/2

y=54º

Tju [1.3M]3 years ago

3 0

Answer:

d. 54

Step-by-step explanation:

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VMariaS [17]

Answer:

1. She must collect 45 more skins.

Step-by-step explanation:

300/100 = 3

3 = 1%

50 x 3 + 150

35 x 3 + 105

150 - 105 + 45

8 0

3 years ago

Find the point-slope equation for the line that passes through the points (-8,-32) and (3,1). Use the first point in your equati

emmainna [20.7K]

Hey there! :)

Answer:

y + 32 = 3(x + 8)

Step-by-step explanation:

Begin by finding the slope of the line using the slope formula:

$m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}$

Plug in the coordinates of the points into the equation:

$m = \frac{1 - (-32)}{3 - (-8)}$

Simplify:

$m = \frac{33}{11}$

m = 3.

Point-slope form is:

y-y₁=m(x-x₁)

Plug in the coordinates of the first point, as well as the slope:

y - (-32) = 3(x - (-8)

y + 32 = 3(x + 8)

6 0

3 years ago

Read 2 more answers

A glass vase is shaped like a cylinder and has a radius of 2.5 inches. The vase holds 170 cubic inches of water. How tall is the

RUDIKE [14]

volume of a cylinder= πr²h
where r is radius and h is height.

here,
3.14 x 2.5²in x h = 170in²
3.14 x 6.25in x h = 170in²
19.625 x h = 170in²
h = 170in²/19.625
h = 8.66242038...in

corrected to the nearest hundredth, it is 8.66 inches

6 0

3 years ago

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A contractor completed five-ninths of a job before a second contractor completed an additional one-third. What fraction of the j

Lina20 [59]

The answer is, one-ninth.
HOPE THIS HELPS! ^_^

4 0

3 years ago

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A company finds that its sales since the company started in 2000 can be modelled by the function s(t)=(20t^2+800t+300)/(8t^2+10t

uysha [10]

Solving the quadratic function, the sales are of 9 million in the years of 2000 and 2012.

<h3>What is a quadratic function?</h3>

A quadratic function is given according to the following rule:

$y = ax^2 + bx + c$

The solutions are:

$x_1 = \frac{-b + \sqrt{\Delta}}{2a}$

$x_2 = \frac{-b - \sqrt{\Delta}}{2a}$

In which:

$\Delta = b^2 - 4ac$

The number of sales(in millions of dollars), in t years after 2000, is modeled by the following function:

$S(t) = \frac{20t^2 + 800t + 300}{8t^2 + 10t + 100}$

The sales are of 9 million when S(t) = 9, hence:

$S(t) = \frac{20t^2 + 800t + 300}{8t^2 + 10t + 100}$

$9 = \frac{20t^2 + 800t + 300}{8t^2 + 10t + 100}$

$72t^2 + 90t + 900 = 20t^2 + 800t + 300$

$52t^2 - 710t + 600 = 0$

Which is a quadratic equation with coefficients a = 52, b = -710, c = 600, hence:

$\Delta = (-710)^2 - 4(52)(600) = 379300$

$x_1 = \frac{710 + \sqrt{379300}}{104} = 12.7$

$x_2 = \frac{710 - \sqrt{379300}}{104} = 0.91$

t is measured in years after 2000, the sales are of 9 million in the years of 2000 and 2012.

More can be learned about quadratic functions at brainly.com/question/24737967

#SPJ1

6 0

2 years ago