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3 years ago

What’s the answer and how did you find it ?

Mathematics

1 answer:

lozanna [386]3 years ago

6 0

Answer:

Since all triangle angles add up to 180°, you can set all the angles equal to 180.

(96 + 2x + (x + 12)) = 180

You can now simplify it together

108 + 3x = 180

Now you can isolate x by itself

180 - 108 = 72

72 / 3 = 24

x = 24

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What is -3/4 + 3/8? Thanks.

AURORKA [14]

Answer:

$- \frac{3}{8}$

Step-by-step explanation:

First, we change both denominators to the LCM (lowest common multiple) which is 8.

$- \frac{3}{4} + \frac{3}{8} = - \frac{6}{8} + \frac{3}{8}$

Since the denominators are the same, we can add the numerators.

$\frac{ - 6 + 3}{8}$

$\frac{ - 3}{8}$

or it can be written as

$- \frac{3}{8}$

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3 years ago

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Find the area of the figure.

givi [52]

these are just two semi-circles, one with a diameter of 22 and the other with a diameter of 30 - 22, or 8, and therefore their radius are 11 and 4 respectively.

$\bf \textit{area of a semi-circle}\\\\ A=\cfrac{\pi r^2}{2}~~,~~ \stackrel{r=11}{A=\cfrac{\pi 11^2}{2}}\implies A=\cfrac{121\pi }{2}~~,~~ \stackrel{r=4}{A=\cfrac{\pi 4^2}{2}}\implies A=8\pi \\\\ -------------------------------\\\\ \stackrel{\textit{total area of the figure}}{\cfrac{121\pi }{2}+8\pi }\implies \cfrac{121\pi +16\pi }{2}\implies \cfrac{137\pi }{2}$

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3 years ago

PLZ HELP ILL MARK U BRAINLIEST!!!

lidiya [134]

Answer:

x=18

Step-by-step explanation:

7x-1=125

+1 +1

7x=126

7 7

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3 years ago

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Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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