Solve the formula for the specified letter.I = 
for r
A. r = 
- IR
B. r = 
C. r = 
D. r = 
Answer: C
Mathematics
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Evaluate the expression for the given values of x and y.y(x - 3) when x = 7 and y = 15
A. 150 B. 60 C. 102 D. 19
Mathematics
Find the volume of the solid, rounded to the nearest integer where appropriate.Cube with cylindrical hole of diameter of 2
A. 17,494 mm3 B. 17,413 mm3 C. 4216 mm3 D. 17,576 mm3
Mathematics
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(7 - 5i) + (8 + 2i)
A. 15 - 3i B. -1 + 7i C. 15 + 3i D. -15 + 3i
Mathematics
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.3y4 + 30y3 + 72y2
A. 3y(y2 + 6y)(y + 4) B. 3y2(y + 6)(y + 4) C. y2(y + 6)(3y + 12) D. 3(y2 + 6)(y2 + 4)
Mathematics