Train B is travelling at the greater speed. If you look at the graph, you can see that after two hours, train B has gone 250 miles, while A has gone only 120.
Answer:
(A) h(x) = 1/4x -2
Step-by-step explanation:
Given: f(x)=4x+8
Rewrite with y: y=4x+8
Switch x and y: x=4y+8
Solve for y: x-8=4y
(x-8)/4=y
1/4x-2=y
y=1/4x-2
This means that h(x) = 1/4x -2 is the correct answer
Plug in 3 for x
f(3) = 2(3) + 1
f(3) = 6 + 1
Solution is 7
Bread - 3 choices
Meat - 5 choices
Veggies - 7 choices
1br 1mt 1vg = 3×5×7 = 105
1br 2mt 3 vg = 3×5×4×7×6×5 =12600
7vg 1br = 3×1 = 3
Answer:
17.) + -
18.)
19.)
20.)
21.)
22.) m^{6} +2m^{5} + m^{4}
23.) 2
m
^{7}+
3
m
^{6}
+
2
m
^{4}
+
10
m
^{3}
+
15
m^{
2}
+
10
Step-by-step explanation:
17.) Distribute to all of the terms in the parenthesis.
18.) Combine Like Terms (x and ) Multiply all other terms by
19.) Multiply terms within the separate parenthesis together
20.) Use FOIL and expand the polynomial
21.) Use FOIL and expand the polynomial
22.) Combine like terms and multiply the contents of the parenthesis by the exponent
23.) Expand (
m^{
4}
+
5
)
(
2
m^{
3}
+
3
m
^{2}
+
2
) by multiplying each term in the first expression by each term in the second expression.