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Vedmedyk [2.9K]
3 years ago
14

I need help with this question. Can you please help me.

Mathematics
1 answer:
sashaice [31]3 years ago
8 0

Answer:

ummmm maybe u just forgot to add the picture

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A car is driving away from a crosswalk. The formula d = t2 + 2t expresses the car's distance from the crosswalk in feet, d, in t
alukav5142 [94]

Answer:

8 feet per second.

Step-by-step explanation:

We have been given that a car is driving away from a crosswalk. The formula d=t^2+2t expresses the car's distance from the crosswalk in feet, d, in terms of the number of seconds, t, since the car started moving.

We will use average change formula to solve our given problem.

\text{Average change}=\frac{f(b)-f(a)}{b-a}

\text{Average change}=\frac{d(5)-d(1)}{5-1}

\text{Average change}=\frac{(5)^2+2(5)-((1)^2+2(1))}{4}

\text{Average change}=\frac{25+10-(1+2)}{4}

\text{Average change}=\frac{35-3}{4}\\\\\text{Average change}=\frac{32}{4}\\\\\text{Average change}=8

Therefore, the the car's average speed over the given interval of time would be 8 feet per second.

8 0
3 years ago
What is the equivalent to 178 and 739
kicyunya [14]

The answer is 917

(Hope this helps you! :) )

6 0
2 years ago
Read 2 more answers
the graph below has the same shape as the graph g(x)=x^2 but it is shifted down 3 units and to the left 2 units what is this equ
sukhopar [10]

Answer:

Option (C)

Step-by-step explanation:

Parent function g(x) = x² [Vertex at the origin (0, 0)]

When this function is shifted 3 units down,

Rule to be followed,

g(x) → g(x) - 3

So, g'(x) = x² - 3

Followed by 2 units shift to the left,

Rule to be followed,

g'(x) → g'(x + 2)

F(x) = (x + 2)² - 3

Therefore, Option (C) will be the answer.

3 0
3 years ago
I need help in number 3
ivanzaharov [21]
\text{Craig} = 12\\
\text{Maria} = 2\cdot\text{Craig}=2\cdot12\\
\text{Maria} = \text{Nelson}-5 \Rightarrow \text{Nelson}=\text{Maria}+5=\boxed{2\cdot12+5}\Rightarrow A
3 0
3 years ago
Which table shows a proportional relationship between weight and price?
katen-ka-za [31]
Sorry I can not see the table and the relationships sorry wish I could help
6 0
3 years ago
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