3 years ago

Someone help please!

1 answer:

3 0

X is equal to 82 degrees

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elena-14-01-66 [18.8K]

Answer:

$x=30$

Step-by-step explanation:

For each right-angled triangle:

$\cos\theta=\frac{cathetus \ adjacent \ \theta}{hypotenuse}$

Because $\cos \theta=0.4, \ \ cathetus\ adjacent \ \theta \ = \ 12, \ \ \ hypotenuse=x$

we have an equation

$0.4=\frac{12}x$

multiplying both sides by x, we get $0.4x=12$

dividing both sides by 0.4 and $x=\frac{12}{0.4}$

using calculator, we divide 12 by 0.4

and finally x=30

8 0

3 years ago

Lera25 [3.4K]

7.75/4 = x
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3 years ago

Anna [14]

60x20=1200
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3 years ago

monitta

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4 years ago

kicyunya [14]

Answer:

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Step-by-step explanation:

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3 years ago