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3 years ago

7

a piece of wire 17m long stretched from the top a flagpole to point p on the ground if p is8m from the pole how tall is the pole

1 answer:

lakkis [162]3 years ago

6 0

Answer:

Step-by-step explanation:

By the Pythagorean Theorem

17^2=8^2+h^2

h^2=17^2-8^2

h^2=289-64

h^2=225

h=15 meters

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Answer:

25 friends

Step-by-step explanation:

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Answer check:

25*3 = 75

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2 years ago

How is the expression (5 + y) ⋅ 8 described by its factors and terms? It has two factors and the factor (5 + y) has one term. It

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Root 3 cosec140° - sec140°=4<br>prove that<br><br>

Lorico [155]

Answer:

Step-by-step explanation:

We are to show that $\sqrt{3} cosec140^{0} - sec140^{0} = 4\\$

<u>Proof:</u>

From trigonometry identity;

$cosec \theta = \frac{1}{sin\theta} \\sec\theta = \frac{1}{cos\theta}$

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From trigonometry, 2sinAcosA = Sin2A

$= \frac{\sqrt{3}cos140-sin140 }{sin140cos140} \\\\= \frac{\sqrt{3}cos140-sin140 }{sin280/2}\\= \frac{4(\sqrt{3}/2cos140-1/2sin140) }{2sin280}\\\\= \frac{4(\sqrt{3}/2cos140-1/2sin140) }{sin280}\\since sin420 = \sqrt{3}/2 \ and \ cos420 = 1/2 \\ then\\\frac{4(sin420cos140-cos420sin140) }{sin280}$

Also note that sin(B-C) = sinBcosC - cosBsinC

sin420cos140 - cos420sin140 = sin(420-140)

The resulting equation becomes;

$\frac{4(sin(420-140)) }{sin280}$

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3 years ago

The graph of function g(x) is a transformation of the graph of function f(x) = x2.g(x) =

mariarad [96]

Given:

The graph of function g(x) is a transformation of the graph of function f(x) = x²

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Finally, there is a vertical shift down 3 units

So,

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6 0

1 year ago