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Annette [7]
3 years ago
6

Which of these numbers is a prime number: 1, 11, 21, 51?

Mathematics
1 answer:
statuscvo [17]3 years ago
5 0

Answer:

11 and 51

Step-by-step explanation:

1 technically isn't a prime since a prime can only be divided by two things (itself and 1) and 1 can only be divided by 1.

21 can be divided by 1, 3, 7, and 21 so it is not prime.

Hope this helps!

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According to the world atlas (2010) the population of New York City was 19,750,000, the population of Los Angeles was 15,250,000
andreev551 [17]

19,750,000
15,250,000
+ 6,945,000
---------------------
41,945,000 = forty-one nine hundred forty-five thousand

the answer is B

8 0
4 years ago
Please help <br> i need ASAP
Maksim231197 [3]

Answer:

6 and 6

Step-by-step explanation:

In equilateral triangles, all sides are congruent so that means that BC and CA are both 6.

6 0
3 years ago
Read 2 more answers
it takes 1/2 of a box of nails to build a bird house if you wanted to build 5 bird houses how many boxes would you need​
dedylja [7]

Answer:

You would need 2.5

Step-by-step explanation:

You can use a porportion to solve.

\frac{.5}{1} = \frac{x}{5} (cross multiply and solve)

7 0
4 years ago
Franklin deposits $3500 in an account that earns 3.5% interest compounded annually. What function equation represents the balanc
lara31 [8.8K]
So this problem can be solve using the formula:
F = P(1+i)^t
Where F is the balance account after t years
P is money deposited
i is the fraction interest rate  
F = 3500 (1+0.35)^t
<span>F = 3500 (1.35)^t is the function equation represents the balance of the account after t years</span>
5 0
3 years ago
Suppose a company's revenue R (in dollars) from the sale of x units of its product is given by R = 260x. Suppose further that th
Arada [10]

Answer:

C(x) = R(x) - P(x)

C(x) = 260x - P(x)

Step-by-step explanation:

I think some information is missing in the question. However, symbolically, the answer for Total Cost (C(x)) = 260x - P(x), where P(x) is the profit.

Basically, we derived that from:

P(x) = C(x) - R(x).,

By making C(x) subject of formula, we have:

C(x) = R(x) - P(x)

Since, we only know the value of R = 260x, then, we have;

                            C(x) = 260x - P(x)

6 0
3 years ago
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