Help please stuck again .

Mathematics

1 answer:

xenn [34]3 years ago

3 0

If the polygons are similar, then the top side is equal to one half of the left side.
Since side (x -1) = 8, then x = 9.

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Evaluate X + Y when X = 13.1 and Y = 2.2 A. 10.9 B. -10.9 C. 35.1 D. 15.3

bazaltina [42]

X +Y = 13.1 + 2.2
= 15.3

answer
D. 15.3

4 0

3 years ago

you buy two rolls of wrapping paper. each roll has the same lateral surface area. what is the diameter of roll B?

Sonbull [250]

I saw the image that should have been posted with this word problem.

The rolls of wrapping paper is cylindrical in shape.

Roll A : length = 30 inches ; diameter = 3 inches
Roll B : length = 24 inches ; diameter = unknown

Lateral surface area = 2 π r h

Lateral Surface area of Roll A = Lateral Surface area of Roll B
2 * 3.14 * 1.5in * 30in = 2 * 3.14 * r * 24 in
282.60 in² = 150.72 in * r
282.60 in² / 150.72 in = r
1.875 in = r

diameter is 2 times the radius = 1.875 in * 2 = 3.75 inches

The diameter of Roll B is 3.75 inches.

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3 years ago

Frequent food questionnaires (FFQ) are a simple way to obtain information on the foods individuals consume by asking them questi

Ilia_Sergeevich [38]

Answer:

Asnwer is A

Step-by-step explanation:

since the correlation between the FFQ and DR is 0.89

x y xy $x^{2}$ $y^{2}$