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valentinak56 [21]
4 years ago
8

Please simplify each expression for 18, 20, and 21

Mathematics
1 answer:
NeX [460]4 years ago
5 0
The answer to the questions

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The equation of a circle is (x+4)2+(y−5)2=121.
larisa86 [58]
Part 1) The equation of a circle is (x+4)²+(y−5)²<span>=121.
What is the center and radius of the circle?

we know that
the equation of a circle is of the form
(x-h)</span>²+(y-k)²=r²
in the problem
(x+4)²+(y−5)²=121.------> (x+4)²+(y−5)²=11²

the center (h,k) is the point (-4,5)  and the radius is 11

Part 2) we have that
(x+15)²+(y−12)²=25-------> (x+15)²+(y−12)²=5²

we know that
<span>the greatest distance, in feet, a person could be from the lamp and be detected is the radius
</span>
the radius is equal to 5 ft

the answer Part 2) is 5 ft

Part 3) we have that
(x−9)²+(y+11)²=16--------> (x−9)²+(y+11)²=4²

the radius is equal to 4 m
so the diameter is ------> 4*2-----> 8 m

the answer Part 3) is
8 m
5 0
4 years ago
Which lists all the lines that are parallel to line s?
serious [3.7K]

Answer:

Only line u and line v. Or the answer is C.

Step-by-step explanation:

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arsen [322]
The answer is 7 1/2.
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What is 38% × 44 show your work​
Sergio [31]

Step-by-step explanation:

what is 38% × 44 show your work

4 0
3 years ago
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Solve t/12=4.<br><br> The solution is t=
lyudmila [28]
T=48

You just need to find out how many times 12 goes into a number, 4 times.

Which is 48 because 12x4 is 48 and you can check your answer by dividing 48/12=4
4 0
3 years ago
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