Ahuman hair was measured to be 8.0×10−4 inch thick. a cat hair was measured to be 4.0×10−1 inch thick. how much greater is the thickness of the cat hair than the human hair? write the answer in standard form.

Human hair:  8.0 x 10-4  =  0.00080

Cat hair:        4.0 x 10-1  =  0.40

Subtracting:   0.40  -  0.00080  =  0.3992

Using rules of precision, the answer becomes 0.40

time 4learning answer is 500

Step-by-step explanation:

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt