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3 years ago

If a+b = -0.5 and ab = -2 , then what is 4a^3+9b?

Mathematics

1 answer:

m_a_m_a [10]3 years ago

5 0

Answer:

pls be more cleare

Step-by-step explanation:

type the question properly and clearly

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Please explain, True or False: The variables in the equation 4x-(5y)2=64x-(5y)2=6 are 4, 5, and 6

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3 years ago

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if you make $2710.00 a month and must spend 89% of that on recurring and variable expenses, how much money can you potentially s

Setler [38]

Answer:

$3577.20

Step-by-step explanation:

You can save 11% of your income each month, so in 12 months, you can save ...

12×0.11×$2710 = $3577.20

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3 years ago

Triangle A'B'C' is the image of triangle ABC under a rotation about point Q.<br><br>

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Answer:

True; about 120° CCW rotation about Q

Step-by-step explanation:

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2 years ago

Put 5x + 5y = -3,500 into a slope-intercept form

GREYUIT [131]

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3 years ago

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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.

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3 years ago