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astra-53 [7]
3 years ago
9

Plz help me with a, b, c, and d Thx

Mathematics
1 answer:
andriy [413]3 years ago
4 0

Answer:

a) 2

b) 38

c) –2

d) – 38

I hope I helped you^_^

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Ill mark brainliest please answer!
leva [86]

Answer:

Step-by-step explanation:

You can change radicals to fractional exponents and vice versa. The 1/2 power means square root. The 1/3 power means the cubed root. etc etc

A:) (81)^\frac{1}{2} =\sqrt{81} =9

B:) (125)^\frac{1}{3} =\sqrt[3]{125} =5

C:) (49)^\frac{3}{2}=\sqrt{(49)^3}  =343

D:) (8)^\frac{5}{3}=\sqrt[3]{(8)^5}=32

4 0
3 years ago
Evaluate the expression: 3c - 6d where c = 7 and d = -4
enyata [817]

Answer:

45

Step-by-step explanation:

(3)(7)−(6)(−4)

=21−(6)(−4)

=21−(−24)

=45

5 0
3 years ago
The number of bacteria in culture grows 80% each hour. Suppose. There are 250 bacteria in the original culture.
Flauer [41]

Answer:  (a) y = 250(1.8)ˣ     (b) 89,262 bacteria

<u>Step-by-step explanation:</u>

Use the exponential growth formula   y = a(b)ˣ     where

  • a = Initial Value
  • b = 1 + r  (for growth) or 1 - r for decay
  • r = rate (convert percent to a decimal)

a)    Given: a = 250,    r = 80% (.80) → b = 1.8

       y = 250(1.8)ˣ

b)  Given: x = 10

     y = 250(1.8)¹⁰

     y = 89,261.68   =  89,262 (rounded to the nearest whole number)

4 0
3 years ago
Estimate 4,377divied by 8
Stella [2.4K]
When you estimate, you round the numbers up or down. In this case, I'll round 4,377 down to 4,000, because 8 divides nicely into that number. 4,000/8 = 500.
You could estimate it to be about 500.
Hope that helped you.
(You can round your own numbers if you would like, but remember that rounding should make it easier for you to solve!)
4 0
4 years ago
Read 2 more answers
2 2/3 x 3 3/8=? <br> Please help me
lara31 [8.8K]

Answer:

Step-by-step explanation:

2 2/3 = 8/3

3 3/8 = 27/8

8/3 * 27/8 = 216/24

= 9

3 0
3 years ago
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