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3 years ago

9. Which equation could be used to find the area of the shaded triangle below?

Mathematics

1 answer:

zmey [24]3 years ago

4 0

Answer:

A. 1/2*b*h

Step-by-step explanation:

This is the area of triangles

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What is 10? Thank you!

valentinak56 [21]

All you need to do is multiply 10 ft times 11, 12 ft times 8, and 6 ft times ten and then when you get all of the answers add them up and you have your answer

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3 years ago

Please helm me

spin [16.1K]

Area of circular metal=πr^2 =3.14 x 3.5 x 3.5 m^2 now, total cost=area x rate =3.14 x 3.5 x 3.5 x 3.25 $ =125.01 $

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3 years ago

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8. Graph the following linear equations. a. 3x+5y=15

kenny6666 [7]

Answer:

slope: -3/5

y-intercept (0,3)

x - y

0 3

5 0

Step-by-step explanation:

I just did it

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3 years ago

2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diver

timofeeve [1]

Answer:

The diver will be 8 feet from the end of the board when he hits the water.

Step-by-step explanation:

The diver hits the water when y = 0.

To find the distance, we have to find the values of x when y = 0.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = (x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this problem, we have that:

$y = 2x^{2} - 9x - 56$

$2x^{2} - 9x - 56 = 0$

$a = 2, b = -9, c = -56$

Then

$\bigtriangleup = b^{2} - 4ac = (-9)^{2} - 4*2(-56) = 529$

$x_{1} = \frac{-(-9) + \sqrt{529}}{2*2} = 8$

$x_{2} = \frac{-(-9) - \sqrt{529}}{2*2} = -3.5$

It is a horizontal distance, so the answer is a positive value.

The diver will be 8 feet from the end of the board when he hits the water.

7 0

3 years ago

A fruit vendor has 28 pears and 16 oranges.

Westkost [7]

16:28 is the ratio But you have to get that in the simplest form so it would be 4:7

3 0

3 years ago

Read 2 more answers