3 years ago

Pleaseee help meeeeeeeeeeee

Mathematics

1 answer:

const2013 [10]3 years ago

4 0

Answer:

no se ablar inglés losiento

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What's the area of the composite figure below ?

JulsSmile [24]

Answer:

31.13

Step-by-step explanation:

If you look carefully, you will find a semicircle and a triangle.

The total area is =

$\frac{\pi r^{2}}{2} + \frac{1}{2} \times base \times height\\$

r = 4 - 0 = 4
base = |-4-0 | = 4
height = 14 - 9 = 5

So if we put the values:

$\frac{\pi \times 4^{2}}{2} + \frac{1}{2} \times 4 \times 3\\= 31.13$

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3 years ago

If x = 9, what is the value<br> of 7x + 4?

Vika [28.1K]

Answer:

Step-by-step explanation:

7x9=63

63+4=67

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2 years ago

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3 years ago

Negative 4 equals r/20 minus 5

levacccp [35]

Answer: r = - 20

Step-by-step explanation:

$-4 = \frac{r}{20} - 5$