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jonny [76]
3 years ago
13

Write two expressions that represent the sum of w and 8 PLEASE HELP ASAP

Mathematics
1 answer:
NARA [144]3 years ago
4 0

"Sum" means addition. So, we have to write two expressions for adding w and 8. Here are two expressions:

w+8

8+w

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Solve this multi step equation: 8a + 2(1 - 5a) < 20 (dash under <)
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Okay. Basically, a is greater than or equal to 9.
First, you do distribute the 2.
8a+2-10a(< or =)20
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Please help me I’m struggling
ryzh [129]

Answer:

Step-by-step explanation:

Remark

This is a cosine law problem.

a = 12

b = 15

C = 83

Notice that the angle is enclosed by 2 given sides. That's what a cosine problem looks like (one of the two choices.

Formula

c^2 = a^2 + b^2 - 2ab*cos(C)

Solution

c^2 = 12^2 + 15^2 - 2*12*15 * cos(83)

c^2 = 144 + 225 - 360 * cos(83)

cos(83) = 0.1219

c^2 = 144 + 225 - 360 * 0.1219

c^2 = 369 - 43.884

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sqrt(c^2) = sqrt(325.116)

c = 18.031

To the nearest tenth, the answer is 18.0 and you must include the 0.

4 0
3 years ago
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