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abruzzese [7]
3 years ago
7

Determine the area of a circle whose diameter is 14 inches. Use pie=22/7​

Mathematics
1 answer:
blagie [28]3 years ago
5 0

Answer:153.94in²

Step-by-step explanation:

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Help plz i dont understand
max2010maxim [7]

Answer:

The answer is 90;

Step-by-step explanation:

since each variable has a given value, just plug the numbers into the equation.

3(6)5=90

Since there is no <em>d </em>in the equation, don't worry about it:)

4 0
3 years ago
type the correct answer in the Box. Use Roman numerals instead of words. The graphs of functions f and g are shown. Function g i
marysya [2.9K]

Answer:

  • k = 2

Step-by-step explanation:

<u>Take some reference points on the graph of f and g:</u>

  • f(2) = 1, g(2) = 2
  • f(4) = 2, g(4) = 4
  • f(8) = 4, g(8) = 8

<u>According to the numbers above we can state:</u>

  • g(x) = 2f(x)

So the value of k is 2

4 0
2 years ago
Nathan bought a pair of boots for $79.95 and 2 shirts for $19.99 each. The sales tax is 7.5%. How much did Nathan pay for all th
Sophie [7]
First, add up his total.
79.95+2*19.99=<span>119.93
Then multiply by 1.075 (this will add the tax to the amount)
That gives us </span><span>128.92475, which we can simplify to 128.92
He had to pay $128.92
</span>
8 0
3 years ago
two trains leave the station at the same time one heading west and the other East the westbound train travels at 55 miles per ho
Diano4ka-milaya [45]
Recall your d = rt, distance = rate * time

so... one train goes west and the goes the opposite way... alrite... so... notice, by the time 338 miles have been covered by both, it will have been "t" hours, and whatever "t" is, is the same amount of time the westbound train has been running as well as the eastbound train has been running.

now, let's say, since by "t" hours they've covered 338 altogether, so, if the westbound train has covered say "d" miles, then the eastbound train would have covered the slack from 338 and d, that is, "338 - d".

\bf \begin{array}{lccclll}&#10;&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\&#10;&------&------&------\\&#10;Westbound&d&55&t\\&#10;Eastbound&338-d&75&t&#10;\end{array}&#10;\\\\\\&#10;\begin{cases}&#10;\boxed{d}=55t\\&#10;338-d=75t\\&#10;----------\\&#10;338-\boxed{55t}=75t&#10;\end{cases}&#10;\\\\\\&#10;338=75t+55t\implies 338=130t\implies \cfrac{338}{130}=t\implies \stackrel{hours}{2.6}=t

so, 2hours and 36 minutes.
8 0
3 years ago
A square painting has a side length of 18 inches. What is the area of the painting?
WINSTONCH [101]
Hi! So because all the sides of the square are the same side, you multiple two of the side lengths together, so the area of the painting is 18 x 18 = 324  :) Good luck and do well in school!!!!!!!!
8 0
3 years ago
Read 2 more answers
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