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IrinaK [193]
3 years ago
12

What is 0.042 in scientific notation

Mathematics
2 answers:
Olenka [21]3 years ago
5 0
It would be 4.2 x 10^-2
just olya [345]3 years ago
3 0
4.2*10^-2



..........................
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HELP PLS ASAP! i uploaded a picture of the question. ;-;
stepladder [879]

Answer:

Quarter 2

Explanation:

Quarter 1 had a 4.19505% increase in earnings, but quarter 2 had a 11.586% increase.

7 0
3 years ago
2 trains leave the station at the same time. Train A is traveling 16 miles slower than train B. The two trains are 720 miles apa
Ber [7]

Answer: the rate of speed for train A is 66 miles per hour.

Step-by-step explanation:

Let x represent the speed of train B.

2 trains leave the station at the same time. Train A is traveling 16 miles per hour slower than train B. This means that the speed of train A would be x - 16 miles per hour.

The two trains are 720 miles apart after 4 hours. It means that both trains traveled a total distance of 720 miles in 4 hours.

Distance = speed × time

Distance travelled by train A after 4 hours is

4(x - 16) = 4x - 64

Distance travelled by train B after 4 hours is

4 × x = 4x

Since the total distance travelled by both trains is 720 miles, then

4x - 64 + 4x = 720

8x = 720 - 64 = 656

x = 656/8 = 82 miles per hour

The speed of train A would be

82 - 16 = 66 miles per hour.

6 0
3 years ago
A store has apple on sale for $20.00 for 8 pounds. If an apple is approximately 5 ounces, how manyapples can you buy for $120.00
lubasha [3.4K]

Answer: 24 apples

Step-by-step explanation: $20.00 = 8 pounds and 16 ounces = 1 pound So you can do $120.00 divided by 5 = 24 apples

4 0
3 years ago
When 0.3(4x - 8) - 0.5(2.4x + 4) is simplified what is the resulting expression?
LUCKY_DIMON [66]
0.3(4x-8)-0.5(2.4x+4)
1.2x-2.4-1.2x+2
x-0.4
4 0
3 years ago
What is 0.003 as a percent.
Paul [167]
0.3% is the answer because the decimal is over one meaning the percent is over 100
8 0
3 years ago
Read 2 more answers
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