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3 years ago

I got A is that right??

Mathematics

2 answers:

noname [10]3 years ago

8 0

Answer:

Yes

Step-by-step explanation:

To fins the area if the rectangle you need to find the hypotenuse of the triangles, which are equal. so 10.4 squared plus 15.3 squared is 342.25, and the square root is 18.5.

Then, 18.5 multiplied by 7 is 129.5. Then to fins the area of a triangle you need to do it like a rectangle but in this case, sense there are 2, then just find the area. 129.5+(10.4 times 15.3=159.12)=129.5+159.12=288.62

vodka [1.7K]3 years ago

6 0

Answer:

yes

Step-by-step explanation:

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A square has a perimeter of 28 inches. Find the area of the square.

sasho [114]

Answer:

A = 49 in^2

Step-by-step explanation:

The perimeter of a square is found by

P = 4s where s is the side length

28 = 4s

Divide each side by 4

28/4 = 4s/4

7 =s

We want to find the area

A = s^2 where s is the side length

A = 7^2

A = 49 in^2

4 0

2 years ago

Read 2 more answers

Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States. In Australia, only 1.5% of

Umnica [9.8K]

Answer:

a. X is a binomial random variable with n = 50 and p = 0.04

b. Y is a binomial random variable with n = 40 and p = 0.015

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

X: the number of US residents (out of 50) with blood type AB.

Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States

This means that $p = 0.04, n = 50$

Y: the number of Australians (out of 40) with blood type AB.

In Australia, only 1.5% of the population has blood type AB.

This means that $p = 0.015, n = 40$

Z: the total number of individuals (out of 90) with blood type AB.

Here

$n = 90, p = 0.04*\frac{50}{90} + 0.015*\frac{40}{90} = 0.0289$

Which of the following is true about the random variables X, Y, and Z?

Options a and b are true, while c is false.

7 0

2 years ago

The question isssssssss...........

leonid [27]

The answer is 43.01, because it is a 5-sided shape like a pentagon. Thus using the formula of to find the area of a pentagon, you will find the area of the shape.

5 0

2 years ago

True or false? Please help.

maks197457 [2]

Answer:

True

Step-by-step explanation:

Vertical angles are angles that essentially opposite of eachother. Vertical angles are a pair of opposite angles formed by intersecting lines.

6 0

2 years ago

Read 2 more answers

Read the sentence.

BARSIC [14]

Answer:

Scientists reached a decision about when to begin the experiment.

Explanation:

Changing of a sentence from passive to active voice or vice versa involves the situational changes in the sentence of both the subject and the object (if there are any). From the example given in the question, the sentence in the passive voice is-

A decision was reached by scientists about when the experiment would begin.

To change this sentence into an active voice, the identification of the subject and object is needed. And then, in an active voice, the subject will be at the beginning of the sentence.

'Decision' is the object in the sentence while the 'scientists' signify the subject(s).

Thus, the new sentence in the active voice will become-

Scientists reached a decision about when to begin the experiment.

6 0

3 years ago