What value of n solves the equation 3^n=1/81 ?
A. –243
B. –27
C. –4
D. 4

Answers

Answer 1
Answer: This is fairly simple. You would just substitute the answer choices in for 'n'.
3^-243=0
So, A. isn't correct.
3^-27=1.31137265.....
So, B. isn't correct.
3^-4=0.123456789 In fraction form this is 1/81
So, we think C. is the correct answer, but just to be sure,  let's try D.
3^4=81 In fraction form this would be 81/1.
So, C. is our answer. 
Hope this helps!!

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What is the sum of 5√7 and 3√28

Answers

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Marge cuts 16 pieces of tape. each piece is 3/8 inches long. how much tape did she use

Answers

Marge cuts 16 pieces.

Each piece has a length of 3/8 inches

she needs to cut 16 pieces of 3/8 inches each

amount of tape needed - (16)/(1)*(3)/(8)

when mulitplying numbers with fractions, numerators should be multiplied by numerators and denominators by denominators

(16*3)/(1*8) = (48)/(8) = 6

amount of tape needed = 6 inches

16 x 3/8 so 16/1 x 3/8 = 48/8. 48 divided by 8 is 6. So 6 inches.

Which of the following expressions is used when referring to the outcomes of two variables?a. mutually exclusive
b. joint probabilities
c. independent events
d. sample spaces Please select the best answer from the choices provided A B C D Mark this and return Save and Exit Next

Answers

B. Joint Probabilities is the expression used when referring to the outcome of two variables.

Joint probability has this form:

f(x,y) = P(X=x, Y=y)  
where the probability that variables x and y happens at the same time.

9 On Cyber Monday, aTV is priced at
$350.00. How much will
the TV cost after a 6%
sales tax is applied?
tax:

Answers

Answer:

$371

Step-by-step explanation:

350 x 0.06 = 21

350 + 21 = 371

Hope this helped!

(8^3)^4 ⋅ 8^−9/ 8^3
Answer???

Answers

Answer: 1

Step-by-step explanation:

The mean of a set of data can be determined from a box-and-whisker plot.True
False

Answers

Your answer is True

It is true that the mean of a set of data can be determined from a box-and-whisker plot.

Hope I Helped You!!! :-)

Have A Good Day!!!

The mean of a set of data that can be determined from a box and whisker plot is true.