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Goryan [66]
4 years ago
14

Which is the value of this expression when a = negative 2 and b = negative 3? (StartFraction 3 a Superscript negative 3 Baseline

b squared Over 2 a Superscript negative 1 Baseline b Superscript 0 Baseline EndFraction) squared StartFraction 4 Over 9 EndFraction StartFraction 27 Over 8 EndFraction StartFraction 243 Over 32 EndFraction StartFraction 729 Over 64 EndFraction
Mathematics
2 answers:
Mrac [35]4 years ago
5 0

Answer:

d

Step-by-step explanation:

i just took the test

natta225 [31]4 years ago
4 0

Answer: The answer is D

729 over 64

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Which of the following is a logical conclusion to the conditional statements
stellarik [79]

Answer:

A

Step-by-step explanation:

If I text him now, then I will catch him before he gets home.

If I catch him before he gets home, then he will meet me in

time.

If a then b, If b then c

Combine both conditional statements by cancelling out the middle man, which is "I will catch him before he gets home."

So you get, "If i text him now, he will meet me in time"

7 0
2 years ago
If caffeine reduces by about 10% per hour, how many hours h does it take for the amount of caffeine in a body to
Mila [183]

Answer:

7 hours

Step-by-step explanation:

Since, the final amount of caffeine formula would be,

A=P(1-r)^t

Where,

P = Initial value,

r = rate per period,

t = number of periods,

Here, r = 10% = 0.10, t = h, A = \frac{P}{2}

\frac{P}{2}=P(1-0.10)^h

\frac{1}{2}=(0.90)^h

Taking log both sides,

log 0.5 = log 0.90^h

log 0.5 = h log 0.90

\implies h = \frac{log 0.5}{log 0.9}=6.57881347896\approx 7

Hence, after 7 hours the amount of caffeine in a body to  reduce by half.

3 0
3 years ago
The Spanish club held a car wash to raise money. The equation y=5x represents the amount of money y club members made for washin
Korolek [52]

They wash a car for $5, so 5 represents the cost of washing one car. to find out how much they will earn by washing x cars, we can multiply 5 by any number to find the total cost of the washed cars. For example 5×2=10 which means the cost of washing 2 cars is $10 and 5×3=15 means the cost of washing 3 cars is $15 and also 5×4=20 means the cost of washing 4 cars is $20. Basically the cost of the washed cars will increase by $5 each time the number of cars increase.

3 0
4 years ago
Simplify 5-6÷2+4. <br> Please help
finlep [7]

Answer:

The answer would be 6.

Step-by-step explanation:

Divide 6 by 2=3

5-3=2

2+4=6

8 0
4 years ago
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Draw an a example of a composite figure that has a volume between 750 and 900 cubic units
Mama L [17]
Maybe something like in attachment?

Where side length of big cube is 9 units and side length of that missing small cube is 1 unit.

So total volume is 728 cubic units.

5 0
3 years ago
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