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DedPeter [7]
3 years ago
10

I need your help to find the value of x.round to the nearest hundred just the photo ​

Mathematics
1 answer:
True [87]3 years ago
3 0

Answer:

Step-by-step explanation:

1. Cos 52° = adj/hyp

Cos 52° = x/13

x = 13×cos 52°

x = 8.00

2. Sin70° = opp/hyp

Sin70° = 30/x

x sin70° = 30

x = 30/sin70°

x = 31.93

x ≈ 32

3. Tan∅ = opp/adj

Tan∅ = 45/51

Tan∅ = 0.8824

∅ = tan-¹(0.8824)

∅ = 41.42°

∅ ≈ 41°

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elena-s [515]

Answer:

x< -8

Step-by-step explanation:

To solve the inequality, we must get x isolated.

-1/2x>4

We have to perform the inverse operation to both sides. x is being multiplied by -1/2. The inverse of multiplication is division. Divide both sides by -1/2.

-1/2x / -1/2 > 4/ -1/2

When dividing by fraction, you can also multiply by the reciprocal.

To find the reciprocal, flip the numerator and the denominator.

-1/2–> -2/1

-2/1 *-1/2x > 4* -2/1

x> 4* -2/1

When multiplying or dividing by a negative number in an inequality, you must flip the inequality sign.

x < 4* -2/1

x < 4*-2

x< -8

5 0
3 years ago
∠1 and ∠2 form a straight angle. ∠1 has a measure of 28°.<br> What is the measure of ∠2? PLZ HELP
Natalka [10]

Answer:

∠2 = 152

Step-by-step explanation:

A straight angle should always equal 180, and that is really the key to how we answer this problem. That means that ∠1 and ∠2 are supplementary, and add up to 180°.

That means that 180-28, will give us our other angle.

6 0
3 years ago
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Subtract the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow
Vadim26 [7]
Hi! :)

12 a^2 + 60 a - 8
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3 years ago
The midpoint of (-4,15) and (22,3)
ahrayia [7]

Answer:

(9, 9)

Step-by-step explanation:

midpoint of (-4,15) and (22,3)

=  \bigg( \frac{ - 4 + 22}{2}, \:  \:  \frac{15 + 3}{2}  \bigg) \\  \\  =  \bigg( \frac{18}{2},  \:  \:  \frac{18}{2}  \bigg) \\  \\  =  ( 9,  \:  \:  9) \\  \\

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3 years ago
Which of the following is an example of an aerobic activity that improves cardiovascular endurance?
Rina8888 [55]
I would think he answer would be c. Yoga
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3 years ago
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