2 years ago

A person is looking from a car to the top of a building. The angle of elevation to the top of the building from the car

Mathematics

1 answer:

MrRa [10]2 years ago

4 0

Answer:124.29ft (approximately 125ft)

Step-by-step explanation:

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Are the two triangles similar? how do you know

Zinaida [17]

I forgot what they’re called but the angles opposite to each other are the same degree. It’s a theorem, just search up the name

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3 years ago

Cami and Enrique's ages add up to 46. Cami is two years older than three times Enrique's age. How old are Cami and Enrique?

stira [4]

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Cami is 35 and Enrique is 11

35 plus 11 = 46

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3 years ago

-x+ y = 12<br> x-2y=3<br><br> Please help

grigory [225]

Answer:

x=-27, y=-15

Step-by-step explanation:

In the attached file

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2 years ago

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The figure below shows the design of a truss to support the weight of a roof. In this truss design, ∠A⩭∠D and ĀF⩭DF.

bearhunter [10]

Answer:

$m\angle A= 30^{\circ}$

Step-by-step explanation:

In the question, we're given $\angle A\cong \angle D$ . Therefore, the measure of these two angles must be equal.

To find the value of $x$ , set these two angles equal to each other:

$4x-26=x+16$

Add 26 and subtract $x$ from both sides:

$3x=42$

Divide both sides by 3:

$x=\frac{42}{3}=14$

Since $\angle A$ was labelled as $4x-26$ , substitute $x=14$ to find its measure:

$\angle A=4(14)-26,\\\angle A=56-26,\\\angle A=\boxed{30^{\circ}}$

You can also substitute $x=14$ into the label of angle D as angle A is congruent to angle D for easier calculations ( $14+16=\boxed{30^{\circ}}$ ).

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3 years ago

What is the product?<br> (-2d^2+s)(5d^2-6s)

wlad13 [49]

The answer is −10d4+17d2s−6s2

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2 years ago