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solmaris [256]
3 years ago
5

The area of a circle is 196 pi square inches. what is the exact length of the circle's radius?

Mathematics
1 answer:
shtirl [24]3 years ago
7 0

Answer:

9.89

Step-by-step explanation:

196 pie \ pie

196 \ 2

sqr rt 196


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Write the expression as a square of a binomial: <br><br> 9/25a^6b^2-a^4b^4+25/36a^2b^6
sergiy2304 [10]

Answer:

a^2b^2(18a^2-25b^2)^2 over 900

Step-by-step explanation:

Over 900 means that is a fraction

6 0
3 years ago
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Laine reads 25 pages in 30 minutes. If Laine reads 200 pages at this same rate, how long will it take her
tester [92]
Set up a table.

Pages | Minutes
-----------------------
25. | 30
? | 200


One way is to cross multipy.
200 x 25 = 5,000
30 x ? = 5,000

So do 5,000 divided by 30 and you get your answer
3 0
3 years ago
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What is the 4th term in the sequence b(n)=1(-2)^n-1
mel-nik [20]
b(n)=1(-2)^n-1

When n = 4, 
b(4)=1(-2)^4-1

b(4)=16-1

b(4)=15

-------------------------------------------------------------

b(n)=1(-2)^{n-1}

When n = 4
b(4)=1(-2)^{4-1}

b(4)=1(-2)^3

b(4)=1(-8)

b(4)=-8

8 0
3 years ago
Find the sum of the given polynomials.
slega [8]
Rearrange the equation for like terms:

7b - 4b <span>- 3b </span>+ 3 + 5  + 2

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6 0
3 years ago
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On a very hot summer day, 5% of the production employees at Midland States Steel are absent from work. The production employees
Ann [662]

Answer:

59.87% probability of randomly selecting 10 production employees on a hot summer day and finding that none of them are absent

Step-by-step explanation:

For each employee, there are only two possible outcomes. Either they are absent, or they are not. The probability of an employee being absent is independent from other employees. So we use the binomial probability distribution to solve this question.

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.

5% of the production employees at Midland States Steel are absent from work.

This means that p = 0.05

What is the probability of randomly selecting 10 production employees on a hot summer day and finding that none of them are absent

This is P(X = 0) when n = 10. So

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

P(X = 0) = C_{10,0}.(0.05)^{0}.(0.95)^{10} = 0.5987

59.87% probability of randomly selecting 10 production employees on a hot summer day and finding that none of them are absent

4 0
3 years ago
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