Answer:
x ≥-3
Step-by-step explanation:
7 − 9x − (x + 12) less than or equal to 25
7 − 9x − (x + 12) ≤ 25
Distribute the minus sign
7 − 9x − x - 12 ≤ 25
Combine like terms
− 10x −5 ≤ 25
Add 5 to each side
− 10x −5+5 ≤ 25+5
− 10x ≤ 30
Divide by -10. Remember that this flips the inequality
− 10x/-10 ≥30/-10
x ≥-3
a. By the fundamental theorem of calculus, the velocity function is
The particle starts at rest, so 
, and we have
Then the position function is
with 
, so
b. The particle is at rest whenever 
; this happens for
where 
is any integer.
Triangle
Sum of angles in a triangle equals to 180 degrees
62+72+46=180
A triangle has three sides
Answer:
P=12, P=8,8, P=4,5
Step-by-step explanation:
P=4*m, P=area
If m=3, P=4*3=12
if m=2,2 P=4*2,2=8,8
if m=1/5 P=4*1/5=4/5
if P=11 then 4*m=11, m=11/4
The area of the rectangle is 11 if m =11/4
The last one because it starts at -2 and is going back 6 places
