Answer:
(0,7)
Step-by-step explanation:
Answer: 0.01429
Step-by-step explanation:
1.429 x 
Now
is just 1/100 or 0.01, because 10^2 is 100
Now we can multiply 1.429 by 0.01 which is 1.429 x 0.01
Or the easy way, we can just place the decimal two places to the left because the power is -2, so 2 places to the left. Moving the decimal to the left makes the number smaller.
So, take 1.492 and move its decimal 2 places to the left
We get 0.01429
Answer:
t = 7s + 4
Step-by-step explanation:
The goal is to get t alone. So we should move 7s to the other side of the equals to sign. When we move 7s to the other side of the equals to sign the sign changes to -7s. There are no like terms to be collected so the answer should be 7s + 4 for t.
Answer:
x=9
Step-by-step explanation:
Multiply both sides by 2.
x+3= 12
Subtract both sides by 3.
x=12-3
x=9
Step-by-step explanation:
f(x)=-x²+8x
By replacing x with -7, we get
f(-7)=-(-7)²+8×(-7)
=-49-56
=-105