Answer:
A. cos( )
Step-by-step explanation:
Typed the all the expressions into desmos and picked the ones that matched
Answer:
4cm, 11cm, 21cm
Step-by-step explanation:
4(x + 1)(x + 11)
4(x ^ 2 + 12x + 44)
x ^ 2 + 12x + 11 = 231
x ^ 2 + 12x + 11 - 231 = 0
x ^ 2 + 12x - 220 = 0
(x - 10)(x + 22) = 0
x = 10 and x = - 22
4cm , 11cm , 21cm
Hope it helps you xx
Answer:
perez has 28 student . and , according to this questions ,5 / 7 of those student participants in school sports.Thus 20 students participate in school sport .
Answer:
3x^2-4
Step-by-step explanation:
f(x) = 2x² + 3 and g(x)=x²-7
(f+ g)(x) = 2x² + 3 + x²-7
Combine like terms
= 2x^2+x^2+3-7
=3x^2-4