Perform the desired operation. Write the answer in the form a + bi.(5 + 2i)(5 - 2i)
A. 29
B. 25 - 4i
C. 25 - 4i2
D. 21
Answer: A
Mathematics
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Decide whether the statement makes sense. Explain your reasoning.I found a rock at the bottom of our swimming pool. It had a mass of 500 grams and a volume of 1000 cubic centimeters, so its density was 0.5 g/cm3.
What will be an ideal response?
Mathematics
Write an equivalent rational expression with the given denominator.
with denominator x2 + 14x + 48
A. 
B. 
C. 
D. 
Mathematics
Find the product. Write the answer in standard form.5i(6 - 5i)
A. - 30i - 25i2 B. 30i + 25i2 C. 30i - 25 D. 25 + 30i
Mathematics
Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find csc ?.
A. 
B. 
C. 
D. 
Mathematics