Q: What is the answer for this math algebra problem 3r-2 for r equals 65?

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3.4

3r2

You would factor 3r2 +16 + 5 by splitting the middle term. You first multiply the coefficient of the first term by the constant. Then you find the two factors of 15.

3r2+54r-11,664

3r2(r - 4)(r2 + 4r + 16)

Combine the ' 9r ' and the ' -5r ' . Replace them with ' 4r '.

5r3s5 + 10r2s2 - 15r4s2 (the GCF is 5r2s2) = 5r2s2(rs3 + 2 - 3r2)

Do you mean? 4r2 * 3r2 = 12r4 ====== You multiply the coefficients of the variable terms and add the exponents.

(r3-3r2-5r-3)/(r-1)

The surface area of a sphere can be found with the formula 4pi * r2. Assuming the hemisphere is exactly half of a sphere, the surface area of a hemisphere can be found using the formula A = 2pi * r2 + pi * r2 Which can be written as A = pi(3r2) 942cm/pi = 3r2 314cm/pi = r2 r = 10cm (approximately) The radius of the hemisphere is approximately 10cm.

The GCF is 19.

Yes. 3+2+6=11. If you divide 11 and 3, your answer is 3r2. You will have two 3 inch sides and one 5 inch side.