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3 years ago

If your car goes 50 kilometers in 2 hours,what is its average speed

Mathematics

1 answer:

Georgia [21]3 years ago

8 0

Answer:

25 kilometers per hour

Step-by-step explanation:

I just simply made it into a proportion of 50/2=x/1 and 50 divided by 2 is 25. hopefully that help you.

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Which function in vertex form is equivalent to f(x) = x^2 + 6x + 3?

OlgaM077 [116]

$f(x)=x^2+6x+3$

Complete the square:

$x^2+6x+a^2\implies a=\dfrac{6x}{2x}=3\implies x^2+6x+3^3$

And we have:

$f(x)=x^2+6x+3\\\\f(x)=x^2+6x+3^2-3^2+3\\\\f(x)=(x+3)^2-9+3\\\\\boxed{f(x)=(x+3)^2-6}$

Answer B.

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3 years ago

Which equation is represented by the graph?

Trava [24]

Answer:

y (x+1) this is your answer

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3 years ago

What is 6 divided by 7/9

Hunter-Best [27]

Answer:

54/7

Step-by-step explanation:

Use the KCF method - Keep, Change, Flip
6 divided by 7/9 is just 6/1 divided by 7/9
You can keep 6/1 as the way it is
Next, you change the sign from division to multiplication
Lastly, you flip 7/9 to 9/7
It will now change from 6 divided by 7/9 to 6/1 x 9/7
You now multiple 9 x 6 which is 54 and divide by 7
You cannot simplify further so the answer is 54/7

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6 0

3 years ago

Read 2 more answers

Adam put $100 in a savings account. After 10 years, he had $1649 in the account. What rate of interest did he earn? Use the form

Rina8888 [55]

Answer:

Step-by-step explanation: C. 28%

$A = Pe^{rt}$

$1649 = 100 \cdot e^{10r}\\16.49 = e^{10r}\\\ln{16.49} = 10r\\r = \frac{\ln{16.49}}{10} = 0.28\\$

7 0

2 years ago

Hq+k=y, for q helppp

serious [3.7K]

Answer:

0.+.20.=.40Step-by-step explanation:

6 0

3 years ago