Answer:
Step-by-step explanation:
(x - 2)(x² + 7x + 4) = x(x² + 7x + 4) - 2*(x² + 7x + 4)
= x*x² + x*7x + 4*x - 2*x² -2* 7x -2* 4
= x³ + 7x² + 4x - 2x² -14x -8
= x³ + <u>7x² - 2x²</u> <u>+ 4x - 14x</u> - 8
= x³ + 5x² - 10x - 8
Answer:
4
Step-by-step explanation:
I used a Calculater
Answer: 7 3/10
seven as a whole number, and .3 equals to 3/10 when converted
She walks 3 3/10 mph
In 1/3 an hour she walks 2 1/5 : 2 = 11/10
Answer:
57°
Step-by-step explanation:
180-56=114
114÷2=57