3 years ago

2. Sarah's craft project uses pieces of yarn that are

Mathematics

1 answer:

Lilit [14]3 years ago

4 0

Answer:

She will be able to cut approximately 2 yards off and still have 1 yard.

Step-by-step explanation:

Because 3-2=1 so there would be 1 yard left.

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Step-by-step explanation:

13 - [4 *(8 - 5) + 2 - 9] * 2 =

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13 - [ 12 + 2 - 9] * 2 =

13 - 5 * 2 =

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3 years ago

A 20 ft. ladder is used against a 15 ft. wall. What is the measure of the angle made by the ladder and the ground (nearest whole

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Step-by-step explanation:

Given that,

The length of a ladder, H = 20 feet

The height of the wall, h = 15 ft

We know that,

$\sin\theta=\dfrac{h}{H}$

h is perpendicular and H is hypotenuse

So,

$\sin\theta=\dfrac{15}{20}\\\\\theta=\sin^{-1}(\dfrac{15}{20})\\\\\theta=48.59^{\circ}$

Now using Pythagoras theoerm,

$b=\sqrt{H^2-h^2}\\\\b=\sqrt{20^2-15^2}\\\\b=13.2\ ft$

Hence, the angle made by the ladder and the ground is 48.59° and the ladder is 13.2 feet from the wall on the ground.

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2 years ago

Find the area please :)

Delicious77 [7]

Answer:

it's area is 1/2 b×h

1/2×7×3.8

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2 years ago

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Disregard anything that is already answered I was guessing. I really need help.

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i tjibk ut would be anthung weit wgat us thrs

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3 years ago

Which figure shows a reflection of pre-image DEFG over the x-axis?

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