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4vir4ik [10]
3 years ago
8

You can model an arch at your school using the equation $y=-0.5\left(x+4\right)\left(x-4\right)$ , where $x$ and $y$ are measure

d in feet. The x-axis represents the ground. Find the width of the arch at ground level.
Mathematics
1 answer:
Ksivusya [100]3 years ago
6 0

Answer:

8feet

Step-by-step explanation:

Given the equation that models the arch of a school expressed as;

$y=-0.5\left(x+4\right)\left(x-4\right)$

If the x axis represents the ground;

At the ground level, x = 0

Substitute x = 0 into the equation to get y;

y = -0.5(0+4)(0-4)

y = -0.5(4)(-4)

y = -0.5 * -16

y = 8ft

Hence the y axis at the ground level is 8feet

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gayaneshka [121]
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Work:  
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3 years ago
Given the function, f (x) = sq3x+3+3, choose the correct transformation.
iren2701 [21]

Answer:

B.

Step-by-step explanation:

First, let's start from the parent function. The parent function is:

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2 years ago
Analyze the diagram below and complete the instructions that
Novosadov [1.4K]

9514 1404 393

Answer:

  D.  x = 15; y = 5√3

Step-by-step explanation:

You don't need to know any trig to select the correct answer. You only need to know that the lengths of both sides must be less than the length of the hypotenuse. It is also helpful to know that √3 is about 1.732, so 10√3 ≈ 17.32.

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Since y < 10√3, only answer choice D is viable.

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Answer:

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Step-by-step explanation:

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