<span>Multiply w+2 by w+7 to get (w+2)(w+7)
Expand </span><span>(w+2)(w+7) using F.O.I.L
</span><span><span><span>ww + w * 7 + 2w + 2 * 7
Simplify and combine
w^2 </span>+ <span>9w </span></span>+ 14</span>
Answer:
70
Step-by-step explanation:
all the angles of a triangle sum 180, so 180 - (70 + 40) = 70
12. Because 2 times 4 is 8. Plus the 4 from green picks so it’ll be 12
H=x and b=x+10
A=hb/2 so
A=x(x+10)/2
A=(x^2+10x)/2 and A=48 so
(x^2+10x)=96
x^2+10x-96-0
x^2-6x+16x-96=0
x(x-6)+16(x-6)=0
(x+16)(x-6)=0, since x>0
x=6in, and since the base is x+10
base=16in
Answer:
x=7
Step-by-step explanation:
Starting with (x-2)² = 25
First, square root both sides to get rid of the square on the left. You'll get:
x-2 = 5
Add 2 to both sides to get x alone. You'll get:
x=7
Check your answer by filling in 7 for x:
(7-2)² = 25
(5)² = 25
25 = 25