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HACTEHA [7]
3 years ago
5

Absolute value of -4 - 8i

Mathematics
1 answer:
Nitella [24]3 years ago
4 0
√80 because the absolute value for complex numbers of the form a+bi are evaluated as √a²+b²
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-7p = -3p - 8<br> p =<br> Help
jeka94

Answer:

p=2

Step-by-step explanation:

-7p = -3p - 8

Add 3p to each side

-7p+3p = -3p+3p - 8

-4p = -8

Divide each side by -4

-4p/-4 = -8/-4

p = 2

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3 years ago
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Find the circumference and area of a circle<br>with a radius of 5 feet.​
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Circumference = 2(pi)r

Area = (pi)r^2

r = 5

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Circumference = 10π

5 * 5 = 25

Area = 25π

Using 3.14 as pi substitute:

5 * 3.14 = 15.7

15.7 * 2 = 31.4

Circumference = 31.4

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Step-by-step explanation:

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