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Vlad1618 [11]
2 years ago
10

Functions please help

Mathematics
1 answer:
Irina18 [472]2 years ago
5 0

Answer:

Step-by-step explanation:

A) 700 cookies in 7 days.

im not sure of B

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When using quadratics to model parabolic motion, which value represents the time at which the object falls to the ground? x-inte
morpeh [17]

Answer:  x-intercept

<u>Step-by-step explanation:</u>

NOTES

1) Parabolic motion is represented by the equation:

   h(t) = -9.8t² + vt + h   (in meters per second²), v is velocity

   or

   h(t) =  -32t² + vt + h   (in feet per second²),  v is velocity

2) The x-axis is time (in seconds) & the y-axis is height (in meters or feet).

Since you want to know what time the object hit the ground, h = 0

Therefore, you are looking for the zero of the equation, which is on the x-axis, thus is the x-intercept.

8 0
3 years ago
Jocelyn sells necklaces for $8 each. It costs her $20 for
Charra [1.4K]

We see that the slope intercept is y = 8x - 20. So if we substitute x with 2, because x represents the amount of necklaces sold and we are analyzing her net profit after selling 2 necklaces, that gives us y = 8(2) - 20. Which simplifies to y = -4. So by the time Jocelyn sells 2 necklaces, her net profit will be at -4.

7 0
3 years ago
Can someone please help me with this question? Thanks if you do!
spin [16.1K]

I guess it would be true because 100+95+85+80 = 360, and there are 360 degrees in a circle.


7 0
3 years ago
Read 2 more answers
Solve the system of equations. (3x + 4y = 5) (2x - 3y = -8)
vovikov84 [41]

Answer:

the solution is (-1, 2)

Step-by-step explanation:

Let's solve the system

(3x + 4y = 5)

(2x - 3y = -8)

using the method of elimination by addition and subtraction.  Notice that if we multiply all terms of the first equation by 3 and all terms of the second by 4, y as a variable will temporarily disappear:

  9x + 12y = 15

  8x - 12y  = -32

-----------------------

 17x       = - 17, so x = -1.  

Replacing x in the second equation by -1, we get:

2(-1) - 3y = -8, or

2 + 3y = 8,

or 3y = 6.  Thus, y = 2, and the solution is (-1, 2).

5 0
3 years ago
Evaluate.<br> 3/4<br> minus<br> 3/8<br> Divided by <br> 2/3
user100 [1]

Answer:

3/16 or 0.1875

Step-by-step explanation:

3/4 - ((3/8)/2/3))

= 3/4 - 3/8 * 3/2

= 3/4 - 9/16

= 12/16 - 9/16

= 3/16 or 0.1875

Hope this help you :3

8 0
3 years ago
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