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2 years ago

Write a quadratic equation whose solutions are 7i and -7i

1 answer:

4 0

Because -7i and 7i are the solutions to the quadratic equation, you can first write it in factored form (x-7i)(x+7i). The you multiply this out and get x^{2} +49.

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Find the inverse of the function. f(x) = 5x - 5 f^-1(x) = _____ √

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Step-by-step explanation:

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2 years ago

80ptss!!! Consider the following expressions shown below.

Step2247 [10]

The first one is A the second is C and the third is B

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3 years ago

Translate the expression with rational exponents into a radical expression. Simplify if necessary.

mars1129 [50]

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3 years ago

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8/v + 9/x=y Solve for v

Andreas93 [3]

The answer is v= -8x/-xy+9

Here is the step by step process (This is going to be long):

1. 9v+8x=vxy

Multiply both sides by vx

2. 9v+8x+−vxy=vxy+−vxy

−vxy+9v+8x=0

Add -vxy to both sides

3. −vxy+9v+8x+−8x=0+−8x

−vxy+9v=−8x

Add -8x to both sides

4. v(−xy+9)=−8x

Factor out the variable v

5. v(-xy+9)/-xy+9 = -8x/-xy+9

v = -8x/-xy+9

Divide both sides by -xy+9

4 0

3 years ago

What is the height of the cylinder in the diagram? Round your answer to the nearest whole number.

ryzh [129]

Answer:

$\mathrm{78.96 \: cm}$

Step-by-step explanation:

Cylinder volume formula is $\pi r^2h$

$\pi \times 6^2 \times h=904.78$

$36\pi \times h=904.78$

$h=904.78 \div 36\pi$

$h=78.95695$

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3 years ago

Read 2 more answers