Question

For questions 1–4, find the simplified form of each expression.





1. (–5)–4 (1 point)20
–625
1 over 625
–1 over 625






2. (–4.7)0 (1 point)1
–1
0
–4.7






3. –(5)–1 (1 point)–one-fifth
–5
5
one-fifth






4. –1 over p^–6 (1 point)–6 over p
–6p
–p6
p6






5. Write the number in expanded form.

9.07 × 103 (1 point)0.00907
9,070
907,000
0.907

Answer 1

I have no clue, what grade is this?

Answer 2

@TuringTest @tester97 @hartnn

Answer 3

@tester97 @tester97 @tester97 @tester97 @tester97 @tester97 @tester97 @tester97 @tester97 @tester97 xD

Answer 4

its algebra for ninth grade. I had to retake it over. cause I didn't get all my credits. so but im in 11th grade. retaking 9th grade algebra!!

Answer 5

I have a C and I really need help to bring up my grade. im doing it at a time it wont let me post all the questions.

Answer 6

1. 20
2.0
3.5
4.-p6
5.9070

Answer 7

Thank you tester

Answer 8

I think im right for most of it but im not sure if it was just plain multiplication or if it was to the power of something. So i made an educated guess :) welcome

Answer 9

For questions 6–8, write each expression using the base only once.





6. 8–3 × 8–2 × 85 (1 point)830
1
80
24






7. 63 × 610 (1 point)3613
613
630
1830






8. 310 × 3–9 (1 point)3
one over three
19
1For questions 9–15, find the simplified form of each expression.





9. (k–2)9 (1 point)k18
one over k to the five hundered twelfth power
one over k to the eighteenth power
k over 18






10. (–h4)5 (1 point)–h9
h1
h20
–h20






11. (t8)2 (1 point)2t16
t10
t16
t64






12. (x–3)–5x6 (1 point)x21
x–21
x48
x–48






13. (6q6)–4 (1 point)6q1,296
1,296q2
one over one thousand two hundred ninety-six times q to the twenty-fourth power
6q–24






14. parenthesis x over two times y to the fifth power parenthesis to the negative second power (1 point)x squared over four times y to the tenth power
four times y to the twenty-fifth power over x squared
four times y to the tenth power over x squared
x squared over four times y to the twenty-fifth power






15. Q3 (1 point)Choice 1
Choice 2
Choice 3
Choice 4






16. A population of 800 cheetahs decreases by 13% per year. How many cheetahs will there be in the population after 5 years? Round your answer to the nearest whole number.
(1 point)1,474
399
735
347






17. What is the value of 10x–3y–1 for x = –1 and y = –3?
(1 point)10(3)–4
30
ten over eighty-one
3one third






18. Find the simplified form of the expression. Give your answer in scientific notation.
(5 × 10–7) (8 × 10–4)
(1 point)4 × 10–13
4 × 10–12
40 × 10–10
4 × 10–10






19. What is the simplified form of the expression?

t^14 over t^5 (1 point)1 over t^9
t9
t19
t70






20. Suppose a population of 175 crayfish doubles in size every month. The function f(x) = 175(2x) gives the population after x months. How many crayfish will there be after 1 year? (1 point)2,100
4,200
716,800
61,250






21. Suppose the population of deer in a state is 10,280 and is growing 1% each year. Predict the population after 5 years. (1 point)51,400
15,556
10,804
514






22. A $6,300.00 principal earns 6% interest, compounded annually. After 3 years, what is the balance in the account? (1 point)$1,360,800.00
$7,503.40
$7,434.00
$25,804.80






23. A $1,600.00 principal earns 7% interest, compounded semiannually. After 33 years, what is the balance in the account? (1 point)$4,979.11
$14,920.54
$112,992.00
$15,494.70






24. A car costs $25,750.00 and depreciates in value by 20% per year. How much will the car be worth after 5 years? (1 point)$5,150.00
$8,437.76
$8,240.00
$20,600.00

Answer 10

OH crap i cant do all of that for you @_@ is that a test?

Answer 11

yes. I don't understand it

Answer 12

No. 1: (–5)–4
Assuming the -4 is supposed to be an exponent. If so, then it can be come positive if placed in the denominator. I will do that
1/(-5)^4 = 1/[(-5)(-5)(-5)(-5)] = 1/[(25)(25)] = 1/625

Answer 13

Just some guidance, since it is a test you need to do these the best that you can. Remember a test is just to get a measurement of your understanding, if you score low, the teacher will work with you. Using others will not help you in the long run.

Answer 14

Radar can you help me with the rest of this please? cause I really need help on this

Answer 15

I need help please

Answer 16

Which one do you not understand?

Answer 17

Can you help me with number 24?

Answer 18

If you have a calculator multiply 25,750 times .8 then multiply the resulting answer by .8 do this 5 times, the answer should be on your calculator.