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nekit [7.7K]
3 years ago
5

An open window is at the height of 15 ft above the ground. A ladder is placed 8 ft away from the side of the house. What will be

the length of ladder needed to reach to the window of
the house?
Mathematics
2 answers:
mestny [16]3 years ago
7 0
It was a lot better then you got me in my life that way
Evgesh-ka [11]3 years ago
3 0
15^2+8^2=x^2
225+64=x^2
289=x^2
17=x

17 is your answer.
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For every 6 cups of flour in bread recipe there are 2 cups of milk
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3

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3

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(-9)4 what is (-9) to the power of for is
Luba_88 [7]

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6,561

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8 0
3 years ago
Approximate the real zeros to the nearest tenth: a.-1.6, 1.6 c.-2.6, 2.6 b.-2, 1 d .-1.6, 2.6 Please select the best answer from
Mariana [72]

Answer:

You didn't give the expression whose zero you want to find. From the options you wrote, the expression has two zeros, this means it is a quadratic expression.

I will however explain how to find the zero of a quadratic expression.

Step-by-step explanation:

An expression is called quadratic, if the highest degree of the variable is 2, no more, no less. It is of the form: ax² + bx + c, where a, b, and c are constants.

The zeros of a quadratic expression are the values that make the expression vanish, that is equal to zero.

Example: Find the zeros of 2x² - 6x + 4

First, equate the expression to zero

2x² - 6x + 4 = 0

Next, solve for x

2x² - 2x - 4x + 4 = 0

2x(x - 1) - 4(x - 1) = 0

(2x - 4)(x - 1) = 0

(2x - 4) = 0

Or

(x - 1) = 0

2x - 4 = 0

2x = 4

=> x = 4/2 = 2

Or

x - 1 = 0

x = 1

Therefore, the zeros of the polynomial are 1 and 2.

3 0
3 years ago
Read 2 more answers
A.d2=4 is true for<br><br>b.2m=m+m is true for<br><br>c. d+67=d+68 is true for
Rufina [12.5K]
A. 2(2) = 4
B. 2(1)= 1+1
C. 2+ 67 = 1+ 68
8 0
3 years ago
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