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Tomtit [17]
3 years ago
14

Describe how to write 2,915,000,000 in scientific notation

Mathematics
1 answer:
Goshia [24]3 years ago
5 0

Answer:

2.915 × 10^9

Step-by-step explanation:

you count the from right to left since its a positive number until you get one number in front. That's where you place your decimal. Since there's 9 numbers behind the 2 it will be 10 to the power of 9.

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What is this please help ​
LenaWriter [7]

Answer:

the 2nd option is correct.

Step-by-step explanation:

Hope you have a great day!

If it helped mark me as brainliest!

8 0
3 years ago
Read 2 more answers
There were 200,000 animals of a certain species in 1980. Since then,this number has decreased by 4.5% each year. Approximately h
g100num [7]

Answer: Approximately 25187 animals of this species will be left in 2025

Step-by-step explanation:

We would apply the formula for exponential decay which is expressed as

y = b(1 - r)^x

Where

y represents the population of animals after x years.

x represents the number of years.

b represents the initial population of animals.

r represents rate of decay.

From the information given,

b = 200000

r = 4.5% = 4.5/100 = 0.045

x = 2025 - 1980 = 45 years

Therefore,

y = 200000(1 - 0.045)^45

y = 200000(0.955)^45

y = 25187

8 0
4 years ago
Read 2 more answers
A ramp 17 1/2 feet in length rises to a loading platform that is 3 1/2 feet off the ground. Find the angle that the ramp makes w
faltersainse [42]

Answer:

The angle that the ramp makes with the ground is 11.54°

Step-by-step explanation:

From the image attached, we can see that the length of 17 1/2 ft corresponds to the hypotenuse in a right triangle, the length of 3 1/2 ft corresponds to the opposite side.

We can use the fact that the sin(θ) = \frac{Opposite}{Hypotenuse} to find the angle that the ramp makes with the ground.

sin(\theta)=\frac{3.5}{17.5}

The angle is equal to

\theta = sin^{-1}(\frac{3.5}{17.5} )\\\theta = 11.54\°

3 0
3 years ago
Look at the graph below when did Denise stop walking?
bonufazy [111]

Answer:

B, between 1 and 3 seconds.

Step-by-step explanation:

This is because the line is horizontal, and no changes were made, meaning she stopped walking.

Hope this helped.

4 0
3 years ago
As part of a screening process, computer chips must be operated in an oven at 125 °C. At the end of the cycle, the oven must be
Tasya [4]
I got 22.5 
 
tell me if i got it wrong or right
3 0
4 years ago
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