Ask question

Ask question

All categories

3 years ago

11

A U.S. penny has a mass of 2.5 grams. A U.S. quarter has a mass of 5.67 grams. What is the total mass of the two coins (pls help

lol)

1 answer:

Svet_ta [14]3 years ago

6 0

Answer:

8.17 grams

Step-by-step explanation:

To find the total mass of the two coins add the masses together.

$5.67+2.5=8.17$

You might be interested in

Helpppppppppppppppppppp

Genrish500 [490]

Answer:

A

Step-by-step explanation:

(I hope it is right)

5 0

3 years ago

Read 2 more answers

Find the Surface Area of the right triangular prism.

Elis [28]

It’s always gonna be 60 Units this is just an known fact

8 0

3 years ago

Cole got $100 for his birthday. he can either save the money or buy a tennis racket with it what is the opportunity cost if he b

Andrew [12]

Answer:

A. winning games with his new racket

Step-by-step explanation: It's A because he's going to spend the money anyways every kid can't hope but, to spend their money $100 is a lot. He wouldn't be worried about losing out on savings because you get birthday money every year there is always a Opportunity for more cash.

If I'm wrong please let me know that means it was (B.) Spending the cash..

7 0

3 years ago

Read 2 more answers

A survey conducted by a leading HMO found that of 2000 women, 340 were heavy smokers and 25 had emphysema. Of those who had emph

belka [17]

Answer:

The events being a heavy smoker and having emphysema are not independent.

Step-by-step explanation:

We are given the following in the question:

Number of women = 2000

Number of heavy smoker = 340

Number of women who has emphysema = 25

Number of women who has emphysema and are heavy smoker = 21

$\text{Probability} = \displaystyle\frac{\text{Number of favourable outcomes}}{\text{Total number of outcomes}}$

P(Smoker) =

$P(S) = \dfrac{340}{2000}=0.17$

P(emphysema) =

$P(E) = \dfrac{25}{2000}= 0.0125$

P(Smoker and emphysema) =

$P(S\cap E) = \dfrac{21}{2000} = 0.0105$

Two events A and B are said to be independent if

$P(A\cap B)=P(A)\times P(B)$

Checking conditions for independence:

$P(S)\times P(E) = 0.17\times 0.0125=0.002125\\P(S)\times P(E) \neq 0.0105\\P(S)\times P(E)\neq P(S\cap E)$

Thus, the events being a heavy smoker and having emphysema are not independent.

3 0

3 years ago

Write the line in slope-intercept form, that is (a) parallel and (B) perpendicular to the line 4x + 2y = 6 that passes through t

zaharov [31]

The answer to the question

8 0

4 years ago