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4 years ago

Helppppppp mathhhhhhhhh

Mathematics

1 answer:

tamaranim1 [39]4 years ago

5 0

Cosα=adjacent/hypotenuse

In this case you have:

cosα=FE/DF

DF=FE/cosα, we are told that FE=13 and α=34 so

DF=13/cos34

DF≈15.68 which is

DF≈15.7 (to nearest tenth)

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Which expressions are equivalent to 12x + 8y.

raketka [301]

Answer:

B. 4(3x+2y)

Step-by-step explanation:

Factor 12x+8y

12x+8y

=4(3x+2y)

brainliest please?

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3 years ago

Students held a canned food drive and collected 200 cans. The distribution of food collected is shown in the graph below. Based

umka21 [38]

That would be about 30 cans of fruit

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4 years ago

Help solve pls ^-^

Papessa [141]

Step-by-step explanation:

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8 0

3 years ago

The students in a class are surveyed to find out how many siblings they have. The data is displayed in a frequency table:

raketka [301]

Answer:

1.52

Step-by-step explanation:

<u>The mean number of siblings:</u>

(0*5 + 1*10 + 2*8 + 3*2 + 4*1 + 5*1)/(5 + 10 + 8 + 2 + 1 + 1) =
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4 0

3 years ago

Adrian is putting streamers across the ceiling of his dining room to decorate for his nephew’s birthday party. The ceiling is re

iren2701 [21]

Answer: Choice B) 17.5 feet

A = Area of rectangle

L = length

W = width

The formula to use is A = L*W, so we multiply length and width.

We know W = 7 but we don't know what L is.

We know that A = 122.5 is also given

So let's solve for L

A = L*W

L*W = A

L*7 = 122.5 plug in the given values

7*L = 122.5

7*L/7 = 122.5/7 divide both sides by 7

L = 17.5

He should cut 17.5 feet of streamer. Keep in mind that this only applies if Adrian wants to make the streamer completely taut and a straight line across the ceiling/wall. If he wants the streamer to hang down a bit (forming a shape like a rope bridge in a sense), then the streamer's length will have to be a bit longer to account for the extra distance along the curve.

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3 years ago