3 years ago

How to do this and what's the answer

Mathematics

1 answer:

Darya [45]3 years ago

6 0

The answer to this question is b I got it wrong With picking a and my teacher said it was b

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The gable end of the roof shown is divided in half by a vertical brace. Find the distance h (in ft) from an eave to the peak. 41

nlexa [21]

Answer:

h = 9 ft

Step-by-step explanation:

Assume the diagram is like the one below.

∆ABD is a right triangle.

We can use Pythagoras' Theorem to find the height h.

$\begin{array}{rcl}h^{2} + 40^{2} & = & 41^{2}\\h^{2} + 1600 & = & 1681\\h^{2} & = & 1681 - 1600\\& = &81\\h& = & \sqrt{81}\\&=& \mathbf{9}\end{array}\\\text{The height of the gable is $\large \boxed{\textbf{9 ft}}$}$

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3 years ago

Two in-line skaters, Nell and Kristin, start from the same point and skate in the same direction. Nell skates at 16 miles per ho

Paha777 [63]

First, we count how far reached the Nell:
3,5 * 16 = 56 miles

Secondly, we count how far reached the Kristin:
3,5 * 18 = 63 miles

Now we expect the difference in the distance between them:
63 - 56 = 7 miles

The results that Kristin about seven miles driven more than Nell.

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3 years ago

Area of this shape with 2cm and 2cm and 4cm and 7cm

Annette [7]

18cm is the answer of this question

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3 years ago

What is the area of the bottle cap?

Marat540 [252]

Answer:

the answer is b my guy

Step-by-step explanation:

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3 years ago

(6x - 4) + (-4x + 8)

ivanzaharov [21]

6x−4−4x+8 = 6x+−4+−4x+8 and then combine like terms =6x+−4+−4x+8

=(6x+−4x)+(−4+8)

Answer: 2x+4

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3 years ago

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