3 years ago

8. Given the radius and area of the circle, calculate the angle at the centre of the circle.

Mathematics

1 answer:

pav-90 [236]3 years ago

5 0

The answer is c for this problem

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Arte-miy333 [17]

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3 years ago

Whats is the estimate of 145.5÷21

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Answer:

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Step-by-step explanation:

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3 years ago

I’m confused on this

dexar [7]

$\huge\boxed{x=25}$

The mistake is in Step 1. The solver should have also squared $9$ when squaring the other side of the equation.

<h3>Correctly solving</h3>

$\begin{aligned}\sqrt{3x+6}&=9\\(\sqrt{3x+6})^2&=9^2\\3x+6&=81\\3x+6-6&=81-6\\3x&=75\\\frac{3x}{3}&=\frac{75}{3}\\x&=25\end{aligned}$

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2 years ago

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Ulleksa [173]

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3 years ago

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Write

IRISSAK [1]

Answer:

y = 2 ( x − 1 ) ^ 2 + 2

Step-by-step explanation:

y = a ( x − h ) ^ 2 + k

where vertex is (h,k) = (1,2)

h=1, k=2

y = a ( x − 1 ) ^ 2 + 2

sub ( 3,10)

10 = a (3 - 1)^2 + 2

a=2

y = 2 ( x − 1 ) ^ 2 + 2

7 0

3 years ago