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MAXImum [283]
3 years ago
5

Which quadratic function best fits this data?

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
5 0

This was answered in some detail for you at brainly.com/question/10690391

The decreasing rate of rise suggests a downward-opening parabola would work best. Of those, the third choice offers the best match to the given data.

... y = -11.41x²+154.42x-143.9

_____

A graphing calculator can do the quadratic regression for you. Doing that gives you coefficients that substantially match those in the answer choice above.

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Please help me i beg of u due today my teacher be buggin
mart [117]

Answer:

1) 35+5w=110

2) the starting heart rate is 73 beats per minute

3)B

4) 6mins

Step-by-step explanation:

1) since she deposits 5 dollars each week we can multiply 5 and w to find out how much money hes depositing after all the weeks are done. We need to add that with 35 to get the TOTAL money in the bank account.

2) 73 is the y intercept. The y intercept is the number when "x" is 0. So when hes just starting out/not excersizing his heart beats 73 beats per min.

3) we know that 10% of her tips is given back to her hence x(number of tips) is multiplied by 0.1, and added to 50 to find the total amount of money she receives

4) 6 mins for 1 order

6 0
3 years ago
6.<br> The area of the book cover is 14 in.? and the length is 2} in. What is the width?
aleksley [76]

Answer:

the width is 7 inches

Step-by-step explanation:

A = l * w

14 = 2 * w

what does w equal?

14 / 2 = 7

2 * w / 2 = w

7 = w

4 0
3 years ago
Need help!! Please!! Offering 20 points!
pshichka [43]

Answer:i

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Triangle X Y Z is shown. The length of side X Y is (9 n + 12) feet and the length of side X Z is (15 n minus 6) feet. Angles X Y
posledela

*the figure is shown in the attachment

Answer/Step-by-step explanation:

Since <XYZ and <YZX are said to be congruent, therefore, the side opposite to each of the angle are also equal. Therefore, ∆XYZ is an isosceles ∆.

Find the value of n by creating an equation to solve for n:

XY = (9n + 12) ft

XZ = (15n - 6) ft

XY = XZ (2 equal lengths of isosceles ∆)

9n + 12 = 15n - 6 (substitution)

Combine like terms

9n - 15n = - 12 - 6

-6n = -18

Divide both sides by -6

-6n/-6 = -18/-6

n = 3

Find the length of leg XY by substituting n = 3 into XY = (9n + 12) ft.

XY = (9(3) + 12) ft

XY = (27 + 12) ft

XY = 39 ft

Find the length of leg XZ by substituting n = 3 into XZ = (15n - 6) ft.

XZ = (15(3) - 6) ft

XZ = (45 - 6) ft

XZ = 39 ft

7 0
3 years ago
A theater can hold 120 giants or 144 elves. If 90 giants are already inside, how many elves can also be admitted?
navik [9.2K]

Answer:

36

Step-by-step explanation:

make proportion giants to elves

120/144 = 90/x cross multiply

120x =144*90

120x =12960 divide by 120

x = 108

so if there are 90 giants in the theater there are  108 elves also

considering that total 144 elves can be  in the theater subtract 144 and 108 so 36 more elves can be admitted

3 0
3 years ago
Read 2 more answers
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