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hram777 [196]
2 years ago
11

What is the answer is think it is a but I don't know. plz help.

Mathematics
1 answer:
Papessa [141]2 years ago
7 0
Hi there!

The answer is actually D.

Since both the numerator and the denominator multiplied by 3 is 3/9, the answer would be 9.

-1 × 3 = -3
-3 × 3 = -9

Since a negative number times a positive number is a negative number, the correct answer would be D.

Hope this helps!
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DanielleElmas [232]

Answer:

9.3 × 10⁷ - 3.4 × 10⁶ = 89 600 000

Which is 8.96*10^7 in scientific notation

Hope this helps you

4 0
3 years ago
The number of bacteria in a culture is given by the function n(t) =950e^0.45t Where t is measured in hours A) what is the contin
tatiyna

Answer:

a) The continuous rate of growth of this bacterium population is 45%

b) Initial population of culture at t = 0 is 950 bacteria

c) number of bacterial culture contain at t = 5 is 9013 bacteria

Step-by-step explanation:

The number of bacteria in a culture is given by

n(t) = 950e^{0.45t}

a) rate of growth is

Bacteria growth model N(t) = noe^{rt}

Where r is the growth rate

hence r = 0.45

              = 45%

b) Initial population of culture at t = 0

n(0) = 950e^{0.45(0)}

       = 950e^{0}

       = 950 bacteria

c) number of bacterial culture contain at t = 5

n(5) =  950e^{0.45(5)}

      = 950e^{2.25}

      = 9013.35

      = 9013 bacteria

6 0
3 years ago
What is the value of the expression when b = 3? 4b to the 4 power
Mekhanik [1.2K]
<span> Just plug in the value of b=3 in 4b^4, then you solve it, and your answer is 324</span>
3 0
3 years ago
If s ( x ) = 2 - x² and t ( x ) = 3x, what is s ( t ( -7 ) )?
ankoles [38]

Answer:

s (t (-7))=?

Step-by-step explana

s (t (-7))=  -7s t

5 0
3 years ago
An average African elephant weighs about 9,072 pounds. How is this number written in scientific notation?
qwelly [4]

Answer:9.072×10³

Step-by-step explanation:

A number is said to be written in a scientific notation or standard form if it is expressed in the form a×10n where 1 is less than or equal to a and a is less than 10 and n is an integer

9072 is more than 10

So 9072÷10=907.2

Still 907.2 is more than 10

So 907.2÷10=90.72

Still 90.72 is more than 10

So 90.72÷10=9.072

9.072 is less than 10

We divided 9072 by 1000 and 1000 as a power of ten is 10³

So the answer is 9.072×10³

4 0
3 years ago
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