MATHEMATICS HIGH SCHOOL

You shoot an arrow set a target. The parabolic path of the arrow passes through the points shown in table.X. Y
30. 6
60. 7
100. 4
A. Find a quadratic function in standard form that models the path of the arrow. Then graph the function. Use quadratic regression for this step. The three points satisfy a quadratic function of form y= ax^2 +box +c

Answers

Answer 1
Answer:

900a+30b+c=6....(1)

3600a+60b+c=7...(2)

10000a+100b+c=4....(3)

(2)-(1)

2700a+30b=1.....(4)

(3)-(1)

9100a+70b=-2...(5)

 solving (4) and (5) then putting a, b into (1)

a=-13/8400, b=29/168, c=31/14

 

The graph is like a parabola with upward dome, it's head at upside and two legs downwards.

 

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Can someone show me how to solve this step by step?

Answers

9514 1404 393

Answer:

  x = -15

Step-by-step explanation:

It appears the drawing is showing two representations for the distance LK. Of course, they both have the same value.

  10 = LK = x+25

Subtracting 25 from the equation, we have ...

  -15 = x

(This value of x makes KJ = (2(-15)+27) = -3, a nonsense value.)

_____

Alternate (more sensible) interpretation

If the bottom line is intended to represent LJ, then we have ...

  10 +(2x+27) = (x +25) . . . . LK +KJ = LJ

  x +37 = 25 . . . . subtract x

  x = -12 . . . . . . .  subtract 37

With this value of x, the length of KJ is 2(-12)+27 = 3, and the overall length LJ is (-12)+25 = 13. This is consistent: LK=10, KJ = 3, LJ = 13.

 

Which measure is of an angle that is coterminal with a 95 degree angle

Answers


1).  You haven't told us what your choices are, so there's no way
we can help you choose the correct one.

2).  An angle that is to be coterminal with another angle of 95 degrees
doesn't need to be any particular size.  It just needs to use the same vertex
that the 95-degree one uses.

Edge Answer:

B. 95° – (1,080n)°, for any integer n

What is the volume of a square pyramid with a base length of 6 cm and a height of 9 cm?

Answers

Answer:

the answer to this is 108 cm³

Step-by-step explanation:
the volume is base area x height, so us 6 x 6 x 9, the answer is 324cm3

Select the best answer for the question 7/8=?/48

Answers

42/48 you take the 48 and divide it by 8 to get 6 and take the 7 and multiply it by 6 to get 42
Please see the pic, I'd solved in it.

Please help i need answers

Answers

Answer:

Step-by-step explanation:

the bottom one would be 12x27 shape

the middle one would be 8x18 shape

the top one would be 9x4 9x4 shape

Which angle number represents ZDEC?B
A
с з
4
E
516
>>
1
2
15
N
14
13
8
H
11
12 10
K
M
J

Answers

Answer:

trump

Step-by-step explanation:
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