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Mrrafil [7]
3 years ago
9

Plzzzzzz answerrrrrr asapppppppp ******will mark brainliest *******

Mathematics
1 answer:
brilliants [131]3 years ago
5 0

The first option is the correct answer

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Find the value of C: <br>6x + Cy = 18<br>3x + 2y = 8
Natalija [7]
I think C is 6, I’m not sure if thats right though. But if X=2 and Y=1
6(2)+6(1)= 18
3(2)+2(1)= 8
5 0
3 years ago
The radius of a semicircle is 4 miles. What is the semicircle's area?
adell [148]

Answer:

8\pi miles or 25.133 miles

Step-by-step explanation:

your radius is 4 miles.

The area of a circle is A= \pi r^{2}

Therefore, the area of this circle is 4^{2} \pi, or 16\pi

Half of this area, because what you're looking for is a semi-circle, is:

8\pi (exact) or 25.133 (rounded) miles.

6 0
2 years ago
$1,200 is deposited into an account with 4.5% simple interest. How much would it earn in interest after 3 years?
zalisa [80]

Answer:

$162

Step-by-step explanation:

$1200 x .045 = $54 x 3 years = $162

8 0
3 years ago
Fabienne rolls a ball 72 inches across the floor. This is 9 times the distance that Olivier rolls his ball across the floor. Let
RoseWind [281]

Answer:

8 inches

Step-by-step explanation:

Oliver rolls his ball 1/9th of the distance Fabienne rolls his, so just divide 72 by 9 to get your answer.

8 0
3 years ago
Read 2 more answers
Please help me with 1,2,3,show me how you get the answers and show me the steps for 1,2,3,please do not send me link write it ri
Natali [406]

Answer:

Step-by-step explanation:

1. ok so you need to use Pythagoras which is a^2 + b^2 = c^2

substituting 16 and 12 into 'a' and 'b' you get 16^2 + 12^2 = c^2

256 + 144 = c^2

400 = c^2 (square root each side to get ride of the square)

c = 20cm

2. doing the same thing you get c = 22.36 in

3. again doing it you get c = 15Ft

 Hope this helps!

8 0
2 years ago
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