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2 years ago

Which expression is equivalent to 36-12x

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

7 0

Answer:

(i think this is wh ast your asking for)

x = 3

Step-by-step explanation:

36 - 12x = 0

- 12x = -36

x = 3

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The area of triangle ABC is 3√2 square inches. Find the measure of the acute angle, A, if b = 9 meters and c = 2 meters.

taurus [48]

Answer:

$A\approx 28^{\circ}$

Step-by-step explanation:

Please find the attachment.

We have been given that area of triangle ABC is 3√2 square inches.

$\text{Area}=\frac{1}{2}\text{Base}\times \text{height}$

We know that area of triangle an be found using trigonometry as:

$\text{Area}=\frac{1}{2}\times c\times h$

$\text{sin}(A)=\frac{h}{9}\\h=9\cdot \text{sin}(A)$

$3\sqrt{2}=\frac{1}{2}\times 2\times 9\cdot \text{sin}(A)$

$3\sqrt{2}=9\cdot \text{sin}(A)$

$9\cdot \text{sin}(A)=3\sqrt{2}$

$\text{sin}(A)=\frac{3\sqrt{2}}{9}$

$\text{sin}(A)=\frac{\sqrt{2}}{3}$

Now, we will use inverse sine to find the value of angle A as:

$A=\text{sin}^{-1}(\frac{\sqrt{2}}{3})$

$A=28.1255057^{\circ}$

$A\approx 28^{\circ}$

Therefore, the measure of angle A is approximately 28 degrees.

3 0

2 years ago

Classify each pair of angles as Complementary, Supplementary or neither.

stellarik [79]

Answer:

Step-by-step explanation:

1. Supplementary

2. complementary

3. neither

4. These two are vertically opposite so neither.

5. Supplementary

6. They add to 90 so they are complementary

7. They add to 180 so they are supplementary.

8. These 2 are equal and vertically opposite. They are neither for this exercise.

9. Complementary: they add to 90.

8 0

3 years ago

As an estimation we are told £3 is €4. Convert £72 to euros.

Luden [163]

(72×4)÷3

Please solve this

Any answer you get is the Answer

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2 years ago

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Please please help, i will mark the brainliest

Bumek [7]

Answer:

Step-by-step explanation:

i think this is the right answer. Not sure

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2 years ago

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What is the value of s in the equation 4(2s − 1) = 7s + 12? 12 16 32 34

erastova [34]

You start by distributing: 8s-4=7s+12
Combine like terms: 8s-7s=12+4
Solve and get your answer: s=16

3 0

3 years ago

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