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victus00 [196]
3 years ago
15

We use exponents to show what ??

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
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<br> a. No solution<br> b. x=-1,x=8.3<br> c. x=0,x=7<br> 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: \pir^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<br> y=?<br> solve pleaseeeeeeeeeee
dybincka [34]
Y= 2 is the answer
Hope this helps
4 0
3 years ago
Read 2 more answers
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