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3 years ago

Help please? Giving brainliest and points! Please explain!

2 answers:

8 0

A, because $1.68 per mile is your rate, and since you don't know how many miles you will be going, you represent it with x. The initial fee of $2.15 is added to $1.68x so you can get your total cost. If you went 8 miles, your equation would be $1.68(8)+$2.15, however since there isnt a specific number of miles, we will use x.

IRINA_888 [86]3 years ago

3 0

The initial fee is the base, so that will not change.

Without knowing how many miles you're going you need x to substitute them, so the equation would be (using slope intercept form)

y= 1.68x + 2.15

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Type the correct answer in the box. Write the standard form of the quadratic equation modeled by the points shown in the table b

White raven [17]

Y =ax² + bx +c

1) Point (0,7)

7 = a*0² +b*0 +c
c = 7
y=ax² + bx + 7

2) Point (1,4)
4=a*1² + b*1 + 7, ----> 4 = a +b + 7, ------> a+b= - 3
3) Point (2, 5)
5=a*2² + b*2 + 7, ----> 5=4a+2b +7,---> -2=4a+2b, ----> -1=2a + b

4) a+b= - 3, ----> b= -3 - a (substitute in the second equation)
2a+b= -1
2a - 3 - a = -1, ----> a - 3 = -1, a =2

5) a+b= - 3
2 + b = -3
b = -5

y=2x² - 5x + 7

8 0

2 years ago

7. The amount of memory on a CD determines how many songs I can download to it.<br> Indep.<br> Dep.

galina1969 [7]

$\bf \underset{dependent}{\stackrel{\textit{songs I can download}}{S(M)}}~~=~~\underset{independent}{\stackrel{\textit{how much memory I have}}{M}}$

the memory is the independent, because that can vary at will, so it's independently varying at will, whilst the amount of songs are limited to how much memory there's in the CD, so the songs are dependent on the memory availability.

3 0

2 years ago

For brainiest:):):):):):):):)

mrs_skeptik [129]

Answer:

11) to know the 20% of 70$ we need to 70÷100×20 = 14 now the sale price will ne 70-14$ = 56$

12) same 20% of 92= 92÷100×20= 18.4 $ so now original price= 92+18.4 = 110.4

13) same 40% of 30$ = 30÷100×40 = 12$ now selling price = 30-12$= 18$

3 0

3 years ago

Read 2 more answers

Is this a function?<br> A) Yes<br> B) No

Ray Of Light [21]

Answer:

yes

Step-by-step explanation:

because its arranged in well functional statement

5 0

3 years ago

Write the y-intercept of the graph of 9x + 6y = 27

stealth61 [152]

Answer:

y= −3 /2 x+ 9/ 2

Step-by-step explanation:

Let's solve for y.

9x+6y=27

Step 1: Add -9x to both sides.

9x+6y+−9x=27+−9x

6y=−9x+27

Step 2: Divide both sides by 6.

6y /6=−9x+27 /6

y= −3 /2 x+ 9/ 2

Answer:

y= −3 /2 x+ 9/ 2

4 0

3 years ago