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2 years ago

A rectangle has a perimeter of `52` cm. Its width is `9` cm.

1 answer:

4 0

The length will be 17.
Perimeter equation is L+L+W+W= Perimeter

9+9+W+W=Perimeter

I took 18 and subtracted it from 52 and got 34.

Since we are calculating one side length I divided by 2 which got me to 17.

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Given a 10 foot length of tree trunk with a radius of 3 feet, what is the weight of the tree trunk section if it has a density o

Nutka1998 [239]

treat the tree trunk as a cylinder

v= pi x r^2 x h

using 3.14 for pi

3.14 x 3^2 x 10 = 282.6 cubic feet

282.6 * 45 = 12, 717 pounds

6 0

3 years ago

A bag of marbles has 3 red, 4 blue, and 5 white marbles in it. What is the probability of reaching in and selecting a blue marbl

goblinko [34]

Answer:

$P(B)=\frac{1}{3}$

Step-by-step explanation:

The number of red marbles in the bag is; $n(R)=3$ .

The number of blue marbles in the bag is; $n(B)=4$ .

The number of white marbles in the bag is; $n(W)=5$ .

The total number of marbles in the bag is: $n(S)=3+4+5=12$ .

The probability of selecting a blue marble is $P(B)=\frac{n(B)}{n(S)}$

We substitute the given information to obtain:

$P(B)=\frac{4}{12}$

We simplify to obtain:

$P(B)=\frac{1}{3}$

4 0

2 years ago

Find the area of the figure. (Sides meet at right angles.)

son4ous [18]

Answer:

40 yd^2

Step-by-step explanation:

Add the square at the bottom to make one large rectangle. Subtract the square not included from that area to get the figure shown (see attachment).

7 0

2 years ago

Which expression is equivalent to the following complex fraction? <br>

Sladkaya [172]

Answer:

Option B

Step-by-step explanation:

Answered by Gauthmath

lmk if you don't understand my handwriting

5 0

3 years ago

A right cylinder has a base area of 16pi square inches and a height of 8 inches. which shape has the same volume as the right cy

Studentka2010 [4]

Answer:

64π^2 cubic inches

Step-by-step explanation:

The question is not complete, the shapes are not given

Diameter of base= 16π

Radius of base= 8π

Height of cylinder = 8 inches

Let us find the volume of the cylinder

V= πr^2h

V= π* (8π)* 8

V= 64π^2 cubic inches

Hence the volume of the cylinder is 64π^2 cubic inches

5 0

2 years ago