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RSB [31]
3 years ago
7

Determine if the function {(−1, 7), (0, 3), (1, 7), (2, 19)} is quadratic. Complete the explanation.

Mathematics
1 answer:
Kamila [148]3 years ago
4 0

it is

the values at 1 and -1 are the same

hope this helps <3

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7. What is the slope of the line that passes through the pair of points (3, 8) and (9, 5) ? (1 point)
agasfer [191]
7. D
8. D
9. D
10.C

for 7 & 8 you use the equation
\frac{y2 - y1}{x2 - x1}
your points are (3,8) & (9,5)

so you plug the numbers in
y2= 5
y1=8

x2=9
x1=3
you subtract them get a fraction and that is your slope


9 & 10
use the equation
y - y1 = m(x - x1)
plug you numbers in for y1 and x2 m is your slope plug it in and that is your equation


5 0
3 years ago
Read 2 more answers
Which decimal is closest in value to the fraction below 1/9 ?<br>a) 0.111<br>b) .33333<br>c) 0.7
frosja888 [35]
1/9=0.11111.....
so the correct option is (a).
7 0
4 years ago
Read 2 more answers
The equation for the cost in dollars of producing automobile tires is c = 0.000015x2 - 0.03x + 35, where x is the number of tire
statuscvo [17]
The cost function is
c = 0.000015x² - 0.03x + 35
where x = number of tires.

To find the value of x that minimizes cost, the derivative of c with respect to x should be zero. Therefore
0.000015*2x - 0.03 = 0
0.00003x = 0.03
x = 1000

Note:
The second derivative of c with respect to x is positive (= 0.00003), so the value for x will yield the minimum value.

The minimum cost is
Cmin = 0.000015*1000² - 0.03*1000 + 35
          = 20

Answer:
Number of tires = 1000
Minimum cost = 20
3 0
3 years ago
At Jefferson Middle School, eighty-two students were asked which sports they plan to participate in for the coming year. Twenty
Keith_Richards [23]

Answer:

Sorry Pinsonjon1129 but you are wrong the question is at the bottom how many people plan to participate in at least two sports? the answer 46

Step-by-step explanation:

20 Cross Country and track 6 cross country and basketball so far 26 8 Track and basketball 34 but 12 plan to participate in all three add them all up and you get 46.

6 0
4 years ago
Read 2 more answers
If a man travels p hours at an average rate of q miles per hour, and then r hours at an average rate of s miles per hour, what i
QveST [7]
Total miles traveled in p hours = p*q miles and 
Total miles traveled in r hours = r*s miles
so, average rate of speed = total miles traveled / number of hours
                                     =[{(p*q)+(r*s)} / (p+r)] miles per hour
5 0
4 years ago
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