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sweet [91]
3 years ago
5

2. Find the circumference of a circle if the area is 300 square centimeters. A. 84.74 cm B. 9.77 cm C. 61.38 cm D. 56.25 cm

Mathematics
1 answer:
Vadim26 [7]3 years ago
3 0
The circumference of the circle is C. 61.38 cm
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If it cost 16.50 for 6 shirts how much would it cost for just one shirt?
slavikrds [6]

Answer:

Each shirt would cost $2.75

Step-by-step explanation:

8 0
3 years ago
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4. Using the Method of Completing the square, find the zeroes of the following function to the nearest
Juliette [100K]

Given:

The function is:

F(x)=2x^2+12x+5

To find:

The zeroes of the given function by using the Method of Completing the square.

Solution:

We have,

F(x)=2x^2+12x+5

It can be written as:

F(x)=2(x^2+6x)+5

By Method of Completing the square add and subtract square of half of coefficient of x in the parenthesis.

F(x)=2(x^2+6x+(\dfrac{6}{2})^2-(\dfrac{6}{2})^2)+5

F(x)=2(x^2+6x+(3)^2)-2(3)^2+5

F(x)=2(x+3)^2-2(9)+5                [\because (a+b)^2=a^2+2ab+b^2]

F(x)=2(x+3)^2-18+5

F(x)=2(x+3)^2-13

For zeroes, F(x)=0.

2(x+3)^2-13=0

2(x+3)^2=13

(x+3)^2=\dfrac{13}{2}

(x+3)^2=6.5

Taking square root on both sides, we get

x+3=\pm \sqrt{6.5}

x=\pm \sqrt{6.5}-3

x\approx 2.55-3 and x\approx -2.55-3

x\approx -0.45 and x\approx -5.55

Therefore, the zeroes of the given function are -0.45 and -5.55.

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3 years ago
Shaded figures area please!!!
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I won’t answer because I don’t like people who spams

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4 years ago
Factor completely 3x4 − 30x3 + 75x2
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4 years ago
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6 balloons are purple! good luck!

7 0
3 years ago
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