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2 years ago

Pl help it’s for homework

Mathematics

1 answer:

Inessa05 [86]2 years ago

5 0

Answer:

b = 3 , a = 5

Step-by-step explanation:

I hope you understand how I solved it

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SCIENTIFIC NOTATION 8TH GRADE MATH KA- CORRECT ANSWERS ONLY PLS :)))) have a great day folks

VARVARA [1.3K]

Answer:

4.82 $*10^{-4}$

Step-by-step explanation:

0.000082 + 0.0004 = 0.000482 = 4.82 $*10^{-4}$

6 0

1 year ago

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If the radius of the wheel below is 4.2 inches. What is the area of the wheel? Round to the nearest tenth place value.

zepelin [54]

Answer:

A = 55.4 in^2

Step-by-step explanation:

6 0

2 years ago

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Halpppp and you get some hearts and branlists!

yaroslaw [1]

Answer:

153/20

Step-by-step explanation:

We want to have the mixed fraction turned into a improper fraction to make adding them both easier. We would change 5 2/8 to 42/8 and 2 4/10 to 24/10.

We now need to get them a common denominator. The LCM (least common multiple) of 8 and 10 is 40, so we multiply 42/8 by 5/5 getting us 210/40 and 24/10 by 4/4 to get 96/40.

Finally, we add them then simplify. 96/40 + 210/40 is 306/40. We then simplify that to 153/20.

4 0

3 years ago

A savings account pays 4 1/2% interest. How much interest

Ghella [55]

Answer:

Interest = $60.75

Amount = $510.75

Step-by-step explanation:

The formula for finding interest is;

Interest = Principal * Rate * Time

And here;

Principal = $450

Rate = 41/2% or 4.5%

Time = 3 years

Interest = $\frac{450 * 45 * 3}{1000}$

Divided by 100 because of the percentage of the rate but here I made it 1000 because I moved the decimal point in the 4.5 forward once which means I have to add 0 to the denominator.

= $\frac{45*45*3}{100}$