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3 years ago

Could someone help me with number 17.

Mathematics

2 answers:

Ahat [919]3 years ago

7 0

The Answer to the question is: Y= -7

NeX [460]3 years ago

3 0

Answer:

y=-7

Step-by-step explanation:

if g(x) is g(-2) that means that x=-2 so we plug that in so 5*-2+3

5*-2+ -10

-10+3+ -7

so y=-7

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Suppose that y varies inversely with x. Write a function that models the inverse function. X= 15 when y= 2

yulyashka [42]

The answer to this question is B: <span>y = 30/x. I hoped I have helped you today!</span>

3 0

3 years ago

Is (4,-5), (0,-5), (11,30), (17,10) a function

Ratling [72]

Answer:

Yes, it is a function

Step-by-step explanation:

A function is a set of ordered pairs where there is no two of the same domain. The domain is the first coordinate which is x. In this case, the x coordinates are 4, 0, 11, 17. There is no two of the same domain so this is a function.

Hope This Helps :)

4 0

3 years ago

What is half of the fraction 3/4

schepotkina [342]

The half of 3/4 is 0.375, or 3/8. All you have to do is multiply 3/4 times 1/2.

5 0

3 years ago

A train from Portland, Oregon, to Los Angeles, California, travels at an average speed of 60 miles per hour and covers a distanc

seropon [69]

Answer:

The train need to leave Portland at 03:27 am

Step-by-step explanation:

step 1

Find out how long it takes the train to travel from Portland, Oregon, to Los Angeles, California

Remember that

The speed is equal to divide the distance by the time

The time is equal to divide the distance by the speed

Let

s ---> the speed in miles per hour

d ---> the distance in miles

t ---> the time in hours

$t=\frac{d}{s}$

we have

$d=963\ mi$

$s=60\ mi/h$

substitute

$t=\frac{963}{60}=16.05\ hours$

step 2

Adds 30 minutes (time it takes to get from the train station to her aunt's house)

Remember that

$30\ minutes=0.50\ hours$

$16.05+0.50=16.55\ hours$

Convert to minutes

$16.55\ h=16.55(60)\ min=993\ min$

step 3

Remember that

$8 p.m=20:00\ hrs$

Convert to minutes

$20(60)=1,200\ min$

Subtract 993 minutes from 1,200 minutes

$1,200-993=207\ min$

Convert to hours+minutes

$207\ min=207/60=3.45\ hours$

$0.45\ h=0.45(60)=27\ min$

$3\ h+27\ min$

$00:00 + 03:27=03:27\ am$

therefore

The train need to leave Portland at 03:27 am

8 0

4 years ago

Decrease 248 by 30%

Snowcat [4.5K]

Okay this equation really says is what is 30% of 248.

So, lets convert 30% to a fraction, 3/10 which is easier to work with.

All you have to do now is get out a calculator and do 248 *3/10 (or .3) and get 74.4

So subtract 74.4 and get

173.6

8 0

3 years ago