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3 years ago

We use exponents to show what ??

1 answer:

5 0

In mathematics, we use exponents to abbreviate the long and tedious stuff. For instance, if we did not have exponents, we would write xxxxxxx instead of x^7.

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johns dinner costs $52.30. Sales tax is 6.5% and he wants to leave a 20% tip for the waitress. what is the total cost for johns

Tasya [4]

Answer:

The total cost for john's meal would be $66.84

Step-by-step explanation:

6.5% of 52.30 = 3.3995

52.30 plus 3.3995 = 55.6995

20% of 55.6995 = 11.14$

55.6995 + 11.14 = $66.84

3 0

3 years ago

Solve for x: 3|x-3| 2=14 a. No solution b. x=-1,x=8.3 c. x=0,x=7 d. x=-1,x=7

VMariaS [17]

I am looking on the answers, and there is only one case, when a or b or c or d pass: 3|x-3| + 2 = 14. So I assume, that before two is plus. Then:

3|x-3|+2=14 |minus 2
3|x-3|=12 |divide 3
|x-3|=4

From absolute value definition you've got two ways:

x-3=4 or x-3=-4
x=7 or x=-1

And answer d) passes

3 0

3 years ago

The recycling bin in the shape of a rectangular prism is 15.5 inches long, 8 inches wide and 7 inches high. The recycling bins n

Viktor [21]

Answer:

694 cubic inches

Step-by-step explanation:

Dimension of prism

Length = 15.5 inches

width = 8 inches

height = 7 inches

Volume of regular prism is given by area of base * height

area of base = length * width ( as bin is rectangular)

area of base = 15.5 * 8 square inches = 124 square inches

Volume of regular prism = area of base * height

= 124 * 7 cubic inches = 868 cubic inches

_________________________________________________

868 cubic inches is the full capacity of the recycling bin

it is given that recycling bins need to be emptied when it is 80% full

so we need to find the 80% capacity of recycling bin

80% capacity of recycling bin = 80/100 * full capacity of the recycling bin

= 0.8 * 868 cubic inches = 694.4 cubic inches

694.4 cubic inches is the amount needed before the recycle bin is ready to empty .

But question says answer should in nearest cubic inch

hence answer is 694 cubic inches

3 0

3 years ago

Pllllllllllllllllllllllllllllssssssssssssssssssssssssssss

cupoosta [38]

Answer:

50.24 units^2

Step-by-step explanation:

Area of circle formula: $\pi$ r^2

r = 4, $\pi$ = 3.14

3.14 * (4^2) = 3.14 * 16 = 50.24

5 0

3 years ago

Read 2 more answers

3y-4=6- 2y y=? solve pleaseeeeeeeeeee

dybincka [34]

Y= 2 is the answer
Hope this helps

4 0

3 years ago

Read 2 more answers