Simplify (−4b)(−19b).
a) 76b
b) −76b
c) 76b2
d) −76b2
(-4b)(-19b) simplifies to 76b^2.
Therefore, the correct answer is c) 76b^2.
Simplify −4r(−11r + 2r − 14).
a) −36r2 + 56r
b) −36r2 − 56r
c) 36r2 + 56
d) 36r2 + 56r
-4r(-11r + 2r - 14) simplifies to 36r^2 + 56r.
Therefore, the correct answer is d) 36r^2 + 56r.
Simplify seven ninths times a times four fifths times a.
a) 56 over 45
b) 28 over 45 times a
c) 28 over 45 times a squared
d) 56 over 45 times a squared
Seven ninths times a times four fifths times a simplifies to:
(7/9) * a * (4/5) * a
= (28/45) * a^2
Therefore, the correct answer is c) 28/45 times a squared.
Simplify 2.5p(2 − 0.5p).
a) 5p − 0.5p2
b) 5p − 1.25p2
c) 5 − 0.5p2
d) 5 − 1.25p2
2.5p(2 - 0.5p) simplifies to:
5p - 1.25p^2
Therefore, the correct answer is b) 5p - 1.25p^2.
Multiply −14y(7y − 5).
a) −98y2 + 70y
b) −98y2 + 70
c) −98y2 − 5
d) 98y2 − 70y
−14y(7y − 5) simplifies to:
-98y^2 + 70y
Therefore, the correct answer is a) −98y^2 + 70y.
Simplify negative two fifths times m times quantity negative four ninths times m minus one seventh end quantity.
a) 8 over 45 times m squared plus one seventh
b) negative 8 over 45 times m squared minus 2 over 35 times m
c) 8 over 45 times m squared plus 2 over 35 times m
d) negative 8 over 45 times m squared plus 2 over 35 times m