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Vanyuwa [196]
3 years ago
6

14(a + 2) = 168 find a

Mathematics
1 answer:
valkas [14]3 years ago
8 0

\bold\red{Answer:}

14a+28=168

14a=140

a=10

hope it helps

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3(5j+2)=2(3j-6) how do i do this
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3 years ago
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What is the length of EF in the triangle? Show your work. HELP!
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The length of EF in the given triangle is 8.80 m.

Step-by-step explanation:

Step 1:

In the given triangle, the opposite side's length is 16.2 m, the adjacent side's length is x m while the triangle's hypotenuse measures 16.2 m units.

The angle given is 90°, this makes the triangle a right-angled triangle.

So first we calculate the angle of E and use that to find x.

Step 2:

As we have the values of the length of the opposite side and the hypotenuse, we can calculate the sine of the angle to determine the value of the angle of E.

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So the angle E of the triangle DEF is 57.087°.

Step 3:

As we have the values of the angle and the hypotenuse, we can calculate the cos of the angle to determine x.

cos E = \frac{adjacentside}{hypotenuse} = \frac{x}{16.2} .

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3 years ago
What percentage is 420 grams of 750 grams?<br> %
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Mark Brainliest please

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Explanation:

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Step-by-step explanation:

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