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1 year ago

Need answer asap!!!!! how would i solve this?

Mathematics

1 answer:

lesya [120]1 year ago

5 0

The height of the building to the nearest tenth of a meter is; 13 m

<h3>How to make use of Cosine Rule?</h3>

The slant line from the top of Trevor's head to the base of the building is gotten from Pythagoras theorem;

15/x = sin 36°

x = 15/sin 36

x = 25.52 m

Angle between that slant line and base of building is;

90 - tan⁻¹(1.5/14) = θ

θ = 83.88°

Remaining angle of the bigger triangle is;

180 - (36 + 83.88) = 60.12°

Thus, if the height of the building is h, then;

h/sin 36 = 25.52/sin 60.12

h = 13 m

Read more about Cosine Rule at; brainly.com/question/4372174

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Which equation is equivalent to x + 8 = 21? (x + 8) × 4 = 21 (x + 8) × 4 = 21 ÷ 4 (x + 8) × 4 = 21 × 2 (x + 8) × 4 = 21 × 4

Drupady [299]

Answer:

(x + 8) × 4 = 21 × 4

Explanation:

x + 8 = 21

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2 years ago

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Makovka662 [10]

Answer:

p=11

Step-by-step explanation:

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3 years ago

Given F= 9/5C+32, the conversion formula for Fahrenheit to Celsius, solve for C

nata0808 [166]

What do you want to solve for? Substitute in c to find F. To solve for C,

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<span>C = 5/9(F - 32)</span>

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3 years ago

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Write an equivalent series with the index of summation beginning at n = 1. ∞ (−1)n + 1(n + 1)xn n = 0

kkurt [141]

Looks like the starting series is

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Note the degree of the first few terms in the series, for $n=0,1,2$ , are $x^0,x^1,x^2$ , and so on.

So if the series were to start at $n=1$ , we would need to preserve that pattern, and we do that by replacing $n$ with $n-1$ :

$\displaystyle\sum_{n=1}^\infty\left((-1)^{n-1}+1\right)(n-1+1)x^{n-1}$

Simplifying a bit, we end up with

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3 years ago

53. (a) if the symbol <img src="https://tex.z-dn.net/?f=%5Clbrack%5Crbrack" id="TexFormula1" title="\lbrack\rbrack" alt="\lbrack

GrogVix [38]

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2 years ago