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serg [7]
3 years ago
13

Hello I need help with number 10 and number 9

Mathematics
2 answers:
zimovet [89]3 years ago
7 0

Answer:

-x - 3

Step-by-step explanation:

lina2011 [118]3 years ago
3 0
-x -3 i think but i’m not 100%
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95.81 rounded to the nearest whole number
Nady [450]
The nearest whole number would be 96
8 0
3 years ago
Graphing how can graphing help solve a problem involving ratios
Alexandra [31]
If you have a ratio like 1 yard for 3 feet you can graph that to get a better understanding of size

4 0
3 years ago
Solve the equation <br><br> 14 = 9 - p
morpeh [17]

14 = 9 - p

Move 9 to the other side

Sign changes from +9 to -9

14-9= 9-9-p

14-9= -p

5=-p

Mutiply both sides by -1 to get + p

(5)(-1)= (-p)(-1)

p= -5

Answer: p= -5

3 0
3 years ago
Jacob throws an acorn into the air. It lands in front of him. The acorn's path is
Burka [1]

Answer:

  • hits the ground at x = -0.732, and x = 2.732
  • only the positive solution is reasonable

Step-by-step explanation:

The acorn will hit the ground where the value of x is such that y=0. We can find these values of x by solving the quadratic using any of several means.

__

<h3>graphing</h3>

The attachment shows a graphing calculator solution to the equation

  -3x^2 + 6x + 6 = 0

The values of x are -0.732 and 2.732. The negative value is the point where the acorn would have originated from if its parabolic path were extrapolated backward in time. Only the positive horizontal distance is a reasonable solution.

__

<h3>completing the square</h3>

We can also solve the equation algebraically. One of the simplest methods is "completing the square."

  -3x^2 +6x +6 = 0

  x^2 -2x = 2 . . . . . . . . divide by -3 and add 2

  x^2 -2x +1 = 2 +1 . . . . add 1 to complete the square

  (x -1)^2 = 3 . . . . . . . . written as a square

  x -1 = ±√3  . . . . . . . take the square root

  x = 1 ±√3 . . . . . . . add 1; where the acorn hits the ground

The numerical values of these solutions are approximately ...

  x ≈ {-0.732, 2.732}

The solutions to the equation say the acorn hits the ground at a distance of -0.732 behind Jacob, and at a distance of 2.732 in front of Jacob. The "behind" distance represents and extrapolation of the acorn's path backward in time before Jacob threw it. Only the positive solution is reasonable.

3 0
1 year ago
Read 2 more answers
MARK AS BRAINLIEST....<br><br><br> -4-(-2)=?<br> 9-(-5)?
Flauer [41]

-2

Answer:

14

Step-by-step explanation:

- 4 - ( - 2) =  - 4 + 2 =  - 2 \\  \\ 9 - ( - 5) = 9 + 5 = 14

5 0
3 years ago
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