Question 4. Just replace x with 2a.
So f(2a) = 5(2a)^2 + 4(2a)
= 5*4a^2 + 8a
= 20a^2 + 8a
Question 5. Since x = 3, which is more than 1, use the second equation.
f(3) = 3^2 + 1
= 9 + 1
= 10
Answer:
n= -3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
4n+2=6(
1
3
n−
2
3
)
4n+2=(6)(
1
3
n)+(6)(
−2
3
)(Distribute)
4n+2=2n+−4
4n+2=2n−4
Step 2: Subtract 2n from both sides.
4n+2−2n=2n−4−2n
2n+2=−4
Step 3: Subtract 2 from both sides.
2n+2−2=−4−2
2n=−6
Step 4: Divide both sides by 2.
2n
2
=
−6
2
n=−3
So 3 bus tickets 3(64) = $192
and 4 train tickets 4(82) =$328
add them together 192+328 =520
it would cost $520 to buy 3 bus tickets and 4 train tickets
Answer:
b
Step-by-step explanation:
For this question the answer will be b
Hope this helps and hope u pass test
Answer: With the following g<span>iven the formula of a </span>sinusoidal function<span> of the form a*f(bx)+d, you can draw its </span>graph with this information.
Hope this helps!
