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3 years ago

1. Find the length of the rectangle below.

Mathematics

2 answers:

vazorg [7]3 years ago

8 0

Answer:

ANSWER IS 15x20 Please make meh brainlist

Sophie [7]3 years ago

5 0

Answer:

Given - A rectangle whose area is 1 2/5 m^2

- length is 4/5 m

To find - Length of rectangle

Solution -

1 2/5 = 7/5 m^2

Let the length be X

Area of rectangle= Length × Breadth

7/5 = X × 4/5

7/5 × 5/4 = X

7/4 = X

Length of rectangle= 7/4

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3 times the complement of an angle is 30 more than the supplement of the original angle. What is the measure of the angle? 15° 3

labwork [276]

1. By definition, the sum of the Suplementary angles is 180° and the sum of the Complementary angles is 90°. Keeping this on mind, you have:

90-x (The complement of the angle)
180-x (The sumplement of the angle)

"x" is the angle that you want to calculate.

2. Then, you have:

3(90-x)+30=180-x
(270-3x)+30=180-x
300-3x=180-x
300-180=-x+3x
120=2x
120/2=x
x=60°

What is the measure of the angle?

The answer is: The measure of the angle is 60°.

6 0

3 years ago

15 different tasks are assigned to 8 different people. There are no restrictions on the number of tasks that can be given to any

Lunna [17]

Answer:

$3.52 * 10^{13}$ ways

Step-by-step explanation:

Since 1 task can be assigned to 1 person, we can start by assigning people to the task. There are 15 different task, so at the first task there are 8 choices, at the 2nd task there are also 8 choices, and so on. There's also the fact that these tasks are all different.

Therefore the total number of way to assign 8 people to 15 tasks is

$8^15 = 3.52 * 10^{13}$ ways

8 0

3 years ago

A bakery made 26 cherry pies, using 115 cherries for each pie. They threw away 36 cherries that were bad. If they used all the c

Artemon [7]

The bakery start with 2954 cherry

Solution:

Given that,

A bakery made 26 cherry pies, using 115 cherries for each pie

So they used 115 cherry for each pie

26 cherry pies, 115 cherry per pie

Therefore,

Number of cherries used = 26 x 115 = 2990 cherries used

They threw away 36 cherries that were bad

36 cherry were bad

2990 - 36 = 2954

Thus they start with 2954 cherries

7 0

3 years ago

An Amazon driver drives two different routes:

34kurt

Answer:

Step-by-step explanation:

4.5 miles

8 0

3 years ago

The average age at which adolescent girls reach their adult height is 16 years. Suppose you have a sample of 29 adolescent girls

kumpel [21]

Answer:

standard error = 1.63

Step-by-step explanation:

To calculate the standard error we need to know the standard deviation (σ) and the sample size (n) (see the attached formula).

To obtain the standard deviation we use the given sample variance of 77.4 years:

σ²= variance

Therefore:

σ = √77.4 = 8.8

Now we can calcuate the estimated standard error:

standard error = σ /√n = 8.8/√29 = 1.63

The standard error gives us an estimation about how far the mean of the sample is from the mean of the entire population, and in this case is 1.63.

7 0

3 years ago