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Vinil7 [7]
3 years ago
13

Which statements are true? Select MORE THAN ONE correct answer.

Mathematics
2 answers:
DochEvi [55]3 years ago
7 0
Statements 1 and 4 are correct. Let me know if you need more of an explanation. :)
Anastasy [175]3 years ago
6 0

Answer:

A and D.

Step-by-step explanation:

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Part A: If (7^2)^x = 1, what is the value of x? Explain your answer. (10 points)
Alex777 [14]
Answers:Part A: The value of x is 0.Part B: X can be any real number.
In Part A, you have to first evaluate 7^2. This is 49. Now, write the equation 49^x = 1. We know that if you raise any number to 0, then the answer is 1.
In Part B, you have to first evaluate 7^0, that is 1. Now, we have the equation 1^x = 1. In this case, 1 raised to any exponent is still only 1. Imagine 1^17, this would be 1 times itself 17 times or just 1.
Therefore any number will work in Part B.

3 0
3 years ago
Help i need the answer now!!!
sveticcg [70]

Answer:

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4 0
2 years ago
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Nady [450]

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8 0
2 years ago
A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of girls to total students?
LenaWriter [7]

Answer:

12:27

Step-by-step explanation:

27 - 15 = 12

There are 12 girls and 15 boys.

12:27 is the ratio of girls to the total amount of students.

8 0
3 years ago
Read 2 more answers
The function f(x)=50⋅0.8x models the number of ants in Jonathan's ant farm after it is stricken by a deadly ant disease, where x
alina1380 [7]

Answer:

Step-by-step explanation:

In the exponential growth/decay function

y=a(b)^x, in our situation,

y is the number of ants remaining in the colony after the growth or decay,

a is the initial number of ants in the colony, and

b is the growth/decay rate.  Rule:  if b is greater than 1, the function is growth; if b is greater than 0 but less than 1, the function is decay.

Our equation looks like this (it's given):

y=50(.8)^x

a = 50, which is the initial number of ants in the colony.

b = .8 (which actually means that then number of ants is declining by 20% each week).  Since .8 is a fraction of 1, this is decay.

So far, we know that 1 and 4 are true.  Let's look at 5.  We have to do some solving to find out if it's true or not.  If the number of ants after x = 2 weeks is 32, then we plug in 2 for x and see if the y we get as the answer is 32:

y=50(.8)^2  and

y = 50(.64) so

y = 32

5 is true as well.  Let's test 6 by replacing x with 8 and seeing if y = 10:

y=50(.8)^8 and

y = 50(.16777216) so

y = 8.388

6 is not true.

1, 4, 5 are true

8 0
3 years ago
Read 2 more answers
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