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3 years ago

Help me solve this please and thank you I will mark brainliest

Mathematics

1 answer:

Volgvan3 years ago

6 0

Answer:

I am so sorry i cant help i cant see it properly and i need the points

Step-by-step explanation:

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How do you write the slope intercept for 3x=9y

bagirrra123 [75]

3x = 9y
9y = 3x
y = 3x/9
y = 1/3x

<span>The slope is 1/3</span>

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4 years ago

Which expression is equivalent to –8?

Svet_ta [14]

Answer:

2, - 3

Step-by-step explanation:

Expression equivalent to - 8

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3 years ago

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The diagram shows a sector of a circle radius 10cm. Find the perimeter of the sector, giving your answer correct to 1 decimal pl

qwelly [4]

<h2>Explanation:</h2><h2></h2>

Hello! Remember you have to write complete questions in order to get good and exact answers. Anyway, I'll help you either way. A sector is a region of a circle between two radii. Let's assume the sector as:

$s=25\pi cm^2$

Then, we can find the central angle by the following equation:

$s=\frac{\theta}{360}\times\pi r^{2} \\ \\ r=10cm \\ \\ s=25\pi cm^2 \\ \\ \\ So: \\ \\ \frac{25\pi(360)}{10^2\pi}=\theta \\ \\ \theta = 90^{\circ}$

But:

$90^{\circ}=\frac{\pi}{2}$

Then:

$C:Perimeter \ of \ sector \\ \\ \\ C=\theta r \\ \\ C=\frac{\pi}{2}(10) \\ \\ C=5\pi cm \approx \boxed{15.7cm}$

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4 years ago

Does anyone know the answer???

GaryK [48]

Answer:the answer would be B

Step-by-step explanation:

the operation is +

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4 years ago

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What are the solutions of 12 - x2 = 0?

tester [92]

Answer:

±2 sqrt(3) =x

Step-by-step explanation:

12 - x^2 = 0

Add x^2 to each side

12 - x^2 + x^2 = x^2

12 = x^2

Take the square root of each side

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±sqrt(4*3) = sqrt(x^2)

±sqrt(4) sqrt(3) = x

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3 years ago

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