Please help I can’t figure these out

Mathematics

1 answer:

yarga [219]3 years ago

3 0

Answer:

Step-by-step explanation:

After subtracting the one from both sides, the opposing side is -35 which turns it into -36

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What is .825 repeating as a fraction

RUDIKE [14]

$0.825825825 = \frac{825}{999} = \boxed{\frac{275}{333}}$

3 0

4 years ago

The length of a rectangle is four times its width. If the area of the rectangle is 100 ft?, find its perimeter

Sphinxa [80]

Answer:

P = 50 ft

Step-by-step explanation:

A = L*W

L = 4W

then

100 = 4W*W

100 = 4W^2

W^2 = 100/4

W^2 = 25

W = 5 ft

Then

L= 4(5)

L= 20 ft

P = 2L + 2W

Then

P = 2(20) + 2(5)

P = 40 + 10

P = 50 ft

Best regards

4 0

4 years ago

COMPLETE<br> Find the value of the function for O.<br> sin(45°) = ?

geniusboy [140]

Answer: $\sqrt{2}/2$ which is Choice B

This is the same as writing $\frac{\sqrt{2}}{2}$

The second "2" is not under or inside the square root.

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Explanation:

Refer to the unit circle below. I've highlighted the angle 45 degrees and its corresponding sine value. It's the y coordinate of the point on the unit circle, for this particular angle.

Therefore, $\sin(45^{\circ}) = \frac{\sqrt{2}}{2}$

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You could alternatively draw out a 45-45-90 triangle. Let x be the leg length and the hypotenuse is 1 unit long. Solve $x^2+x^2 = 1$ for x and you should get $x = \frac{\sqrt{2}}{2}$ as the length of each leg.