All categories

4 years ago

A square swimming pool with the perimeter of 156 feet find the length of one side

2 answers:

4 0

The answer should be 39 feet. Since it's a square swimming pool, all sides are the same length. All you need to do is divide 156 by 4 to get a side.

frosja888 [35]4 years ago

3 0

156 divided by 4 is 39 So each side is 39

You might be interested in

A public health researcher examines the medical records of a group of 937 men who died in 1999 and discovers that 210 of the men

Julli [10]

Answer:

The correct option is (B) 0.173.

Step-by-step explanation:

The law of total probability states that:

$P(A)=P(A\cap B)+P(A\cap B^{c})$

The conditional probability of an event A given that another event B has already occurred is:

$P(A|B)=\frac{P(A\cap B)}{P(B)}$

Then the probability of intersection of A and B is:

$P(A\cap B)=P(A|B)\cdot P(B)$

Denote the events as follows:

H = a man died from causes related to heart disease.

X = a man had at least one parent who suffered from heart disease

The information provided is:

$P(H)=\frac{210}{937}\\\\P(X)=\frac{312}{937}\\\\P(H|X)=\frac{102}{312}$

The probability that a man randomly selected from this group died of causes related to heart disease, given that neither of his parents suffered from heart disease is, $P(H|X^{c})$ .

Compute the value of $P(H|X^{c})$ as follows:

$P(H)=P(H|X)\cdot P(X)+P(H|X^{c})\cdot P(X^{c})$

$\frac{210}{937}=[\frac{102}{312}\cdot \frac{312}{937}]+[P(H|X^{c})\cdot (1-\frac{312}{937})]\\\\\frac{210}{937}-\frac{102}{937}=[P(H|X^{c})\cdot \frac{625}{937}]\\\\\frac{108}{937}=P(H|X^{c})\cdot \frac{625}{937}\\\\P(H|X^{c})=\frac{108}{937}\times \frac{937}{625}\\\\P(H|X^{c})=0.1728\\\\P(H|X^{c})\approx 0.173$

Thus, the probability that a man randomly selected from this group died of causes related to heart disease, given that neither of his parents suffered from heart disease is 0.173.

The correct option is (B).

4 0

3 years ago

Sam opened a saving account. he put $45 in the account to open it and he deposits $12 in the account each month. which equation

liq [111]

Answer:

B) y = 12x + 45

Step-by-step explanation:

45 is the amount of money he has to open it and deposits 12 dollars each month. x is the number of times he deposits. y is the total amount of money he has.

6 0

3 years ago

1. The graph of (y + 6)2 = 2(x – 7) is a parabola. Which statement is true?

MakcuM [25]

Answer:

Step-by-step explanation:

Because y is squared, or, actually, because (y + 6) is squared, we know immediately that the graph is horizontal. Because both (y + 6)^2 and (x - 7) are positive, we know that the graph opens to the right. (b) is correct.

7 0

3 years ago

Caleb's vegetable garden yielded 23 pounds of bell peppers. He gave two-thirds

Stells [14]

Jacob received 15.3 pounds of bell peppers.

5 0

3 years ago

A B C or D need asap please

Paladinen [302]

Answer:multiplication property of -1

Step-by-step explanation:

because it is muliplying by negatives