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3 years ago

10

What is the unit rate in miles per hour for each runner?

1 answer:

lana66690 [7]3 years ago

4 0

Terrance: 12 miles/1 hour
Jesse: 8 miles/1 hour

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If f(x) = x2 - 2x and g(x) = 6x + 4 for which value of x does (t +g)(x)=0

Vinil7 [7]

Answer:

-2

Assumption:

Find the value of x such that $(f+g)(x)=0$ .

Step-by-step explanation:

$(f+g)(x)=0$

$f(x)+g(x)=0$

$(x^2-2x)+(6x+4)=0$

Combine like terms:

$x^2+4x+4=0$

This is not too bad too factor on the left hand side since 2(2)=4 and 2+2=4.

$(x+2)(x+2)=0$

$(x+2)^2=0$

So we need to solve:

$x+2=0$

Subtract 2 on both sides:

$x=-2$

Let's check:

$(f+g)(-2)$

$f(-2)+g(-2)$

$((-2)^2-2(-2))+(6(-2)+4)$

$(4+4)+(-12+4)$

$(8)+(-8)$

$0$

0 was the desired output of $(f+g)(x)$ .

7 0

3 years ago

Triangle (-2,-2) (-6,-8) (-8,-8) over the x-axis. What are the new vertices?

ivanzaharov [21]

(-2,2) (-6,8) (-8,80

5 0

3 years ago

Two cars left at the same time. One car travels at an average of 7 miles per hour faster than the other one. First car got their

Elena L [17]

Answer:

s=50.999 and you can round it to s=50.1

Step-by-step explanation:

8 0

3 years ago

Thank you so much for your help

lana [24]

Answer:

1.1x

Step-by-step explanation:

that is the procedure above

4 0

3 years ago

Audrey drew a model to determine how many eighths are in 5.

____ [38]

Answer:

there are 40 eighths in 5

Step-by-step explanation:

40/8 (the fraction)

40÷8=5

is that what the question is asking?

8 0

3 years ago

Read 2 more answers