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Kaylis [27]
3 years ago
12

How much of earth's surface is cover by land? write your answer in scientific notation

Mathematics
1 answer:
sp2606 [1]3 years ago
7 0


(5.1x10^8) - (3.61x10^8)

(5.1-3.61) x 10^8

1.49 x 10^8 = Final answer
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Find the equation of the line that
ad-work [718]

Answer:

Step-by-step explanation:

y - 5 = 1/2(x - 4)

y - 5 = 1/2x - 2

y = 1/2x + 3

5 0
4 years ago
bill drove 315 miles in 7 hours, Alisha drove 235 mile sin 5 hours, and Joanna drove 414 miles in 9 hours. which person drove at
maw [93]

Answer:

Alisha

Step-by-step explanation:

Speeds:

Bill:

315/7 = 45 mph

Alisha:

235/5 = 47 mph

Joanna:

414/9 = 46 mph

8 0
3 years ago
Read 2 more answers
Evaluate the function for the given value.<br> If f(x) = -3x2 – 8, then f(-4)= ?
Ganezh [65]

Answer:

The answer is

<h2>f( - 4) =  - 56</h2>

Step-by-step explanation:

f(x) =  - 3 {x}^{2}  - 8 \\

To find f(-4) , substitute the value of x that's - 4 into f(x). That is for every x in f(x) , replace it with - 4

We have

f( - 4) =  - 3 ({ - 4})^{2}  - 8 \\  =  - 3(16) - 8 \\  =  - 48 - 8 \:  \:  \:  \:  \:

We have the final answer as

f( - 4) =  - 56

Hope this helps you

4 0
3 years ago
Find the LCM of k^2 + 3k + 2 and 2k^2 + 14k + 20.
Airida [17]

Answer:

  C.  2(k +2)(k +5)(k +1)

Step-by-step explanation:

The LCM will be the product of unique factors.

  (k^2 + 3k + 2)=(k+1)(k+2)\\(2k^2 + 14k + 20)=2(k+2)(k+5)

The unique factors are 2, (k+1), (k+2), (k+5), so the LCM is their product:

  2(k+1)(k+2)(k+5) . . . . matches choice C

3 0
3 years ago
7. Solve:<br> The product of 5, and 3 more<br> than twice a number, is 85.<br> What is the number?
IgorLugansk [536]
5(2x+3)=85
10x+15=85
10x=70
x=7
3 0
3 years ago
Read 2 more answers
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