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3 years ago

Helpppp thanks in advance

Mathematics

1 answer:

CaHeK987 [17]3 years ago

4 0

Answer:

Lets mark the unmarked angle as angle A and the base of the building as BC

We can use tan to find this

tan=opposite/adjacent

by knowing the 2 interior angles we can calculate the measure of A sicne the interior angles of any triangle add up to 180

52+90+A=180

142+a=180

38=a

tan(38)=BC/300

300 tan(38)=bc

using a calculator we see that bc=234.385689 or 234meters rounded

Step-by-step explanation:

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Anna35 [415]

Answer:

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Step-by-step explanation:

Given

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Required

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Next, we solve for c1 and c2

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So, we have:

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$y'(1) =e$ implies that: x = 1 and y' = e

So, we have:

$y' = c_1e^x - c_2e^{-x}$

$e = c_1 * e^1 - c_2 * e^{-1}$

$e = c_1 e - \frac{1}{e}c_2$ --- (2)

Add (1) and (2)

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Divide both sided by e

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Divide both sides by 2

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Substitute $c_1 = \frac{1}{2}$ in $0 = c_1 e + \frac{1}{e}c_2$

$0 = \frac{1}{2} e+ \frac{1}{e}c_2$

Rewrite as:

$\frac{1}{e}c_2 = -\frac{1}{2} e$

Multiply both sides by e

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So, we have:

$y=c_1e^x +c_2e^{-x$

$y = \frac{1}{2}e^x -\frac{1}{2} e^2 * e^{-x}$

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