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Murrr4er [49]
3 years ago
6

*ANSWER ASAP!! ITS FOR MY EXAM*

Mathematics
2 answers:
alukav5142 [94]3 years ago
5 0

Answer: c) $109.88

Step-by-step explanation: divide 750 by 21.5 to figure out how many gallons he would need and than multiply that by $3.15 to find out how much it would cost and you get $109.88

Eduardwww [97]3 years ago
5 0

Answer:

109.88

Step-by-step explanation:

Divide 750 by 21.5. Then multiply the result by 3.15.

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Simplify: (ab + bc) (ab - bc)​
yanalaym [24]

\:  \:  \:  \:

=  {a}^{2}  \:  {b}^{2}  -  {b}^{2}   \: {c}^{2}

Step-by-step explanation:

(ab + bc)(ab - bc)

  • use <u>(</u><u> </u><u>a </u><u>+</u><u> </u><u>b </u><u>)</u><u> </u><u>(</u><u> </u><u>a </u><u>+</u><u> </u><u>b</u><u> </u><u>)</u><u> </u><u>=</u><u> </u><u>a²</u><u> </u><u>-</u><u> </u><u>b²</u><u> </u>to simply the product

(ab {)}^{2}  - (bc {)}^{2}

  • to raise a <u>product</u><u> </u><u>to </u><u>a</u><u> </u><u>power </u>,raise each factor to that power

=  {a}^{2}  {b}^{2}  -  {b}^{2}  {c}^{2}

<h2><u>hope</u><u> it</u><u> helps</u></h2>
6 0
3 years ago
The equation c=0.09s gives the amount c (in dollars) of commission a salesperson receives for making a sale of s dollars.
hram777 [196]

Answer:

The independent variable is s

The dependent variable is c

Step-by-step explanation:

Identify the independent and dependent variables:

The equation c = 0.09s gives the amount c (in dollars) of commission a salesperson receives for making a sale of s dollars.

c = 0.09s

Where

c = commission the salesperson makes

s = amount of sales

The variables in the equation are c and s

The independent variable is s

The dependent variable is c because it's value is determined by the amount of sales of the salesperson

7 0
3 years ago
Suppose the graph of a cubic polynomial function has the same zeroes and passes through the coordinate (0, -5). Write the equati
amid [387]
In this we know all three zeros and one point from which the graph pass.
So we will let specific cubic polynomial function of the form
f(x) = a(x - x_1)(x-x_2)(x-x_3)

As we know zeros are that point where we will get value of function equal to zero. So it is basically in form (x_n , 0)

SO in given question zeros are (2 , 0) , (3, 0) and (5,0)
So we can say x_1 = 2 , x_2 = 3 , x_3 = 5

So required equation is
f(x) = a (x-2)(x-3)(x-5)
              = a[(x^2 - 2x - 3x + 6)(x-5)]
              = a[(x^2 - 5x+6)(x-5)]
              = a(x^3 - 5x^2 + 6x- 5x^2 + 25x - 30)
              = a(x^3 - 10x^2+31x-30)
Now we have one point (0 , -5) from which graph passes.
So we say at x = 0 , f(x) = -5
-5= a (0-0+0 - 30)
-5 = -30a
a =  \frac{-5}{-30} =  \frac{1}{6}
So required equation of cubic polynomial is
f(x) =  \frac{1}{6}(x^3 -10x^2+31x-30)

For finding y - intercept we simply plugin x = 0 in given equation.
As we know at x = 0 , value of function is -5.
So y - intercept is -5.
4 0
4 years ago
Read 2 more answers
It takes 8 people to clear an acre of weeds in 4 hours. How many acres can 16 people clear in 4 hours? How many acres can 2 peop
Stella [2.4K]

It will take 2 hours for 16 people to clear an acre of weeds, and 8 hours for 2 people to clear an acre of weeds.

5 0
3 years ago
Hi I need help with this
ch4aika [34]

Answer:

well this is going to be long, but

1. 0.625

2. -0.136

3. 1.222

4. -5.075

5. -7.455

6. 4.067

7. -9.111

8. -7.833

9. 17/25

10. -1/100

11. -3 99/100

12. 8 149/200

13. 3 1/200

14. -13 3/250

15. -9 49/50

16. -10 113/250

17. your friends snapper is larger, 1320/156 > 1313/156

18. 0.13 > 1/8

19. -1 2/9 < 5/4

20. -5.175 < -5 1/6

21 -1 1/2 = -1.5, - 1 7/9 = -1.777777....

Step-by-step explanation:

sorry i didnt know which question you needed help on so i did it all, hope this helped you!! have a great day

4 0
3 years ago
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