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Vika [28.1K]
2 years ago
6

Please answer very quickly

Mathematics
1 answer:
PolarNik [594]2 years ago
3 0

Answer:

ABD

Step-by-step explanation:

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3b - 13 + 4b = 7b + 1
-BARSIC- [3]

Answer:

There is no solution

Step-by-step explanation:

3 0
2 years ago
Anika is 7 years older than Kit. If Kit is k years old, how old is Anika?
zaharov [31]

Answer:

k+7

Step-by-step explanation:

because k is the age of kit so Anika is 7 years older, so u have to add

sorry if I'm wrong

7 0
3 years ago
The height 'h' (in feet) of a ball in a baseball game can be modeled by h = -16t² + 28t + 8 , where 't' is the time (in seconds)
lidiya [134]

Answer:

  a)  No. t < 0 is not part of the useful domain of the function

  b) 2.0 seconds

Step-by-step explanation:

a) A graph of the function is shown below. It shows t-intercepts at t=-0.25 and t=2.0. We presume that t is measured forward from some event such as the ball being thrown or hit. The model's predicted ball location has no meaning prior to that event, when values of t are negative.

__

b) It is convenient to use a graphing calculator to find the t-intercepts. Or, the equation can be solved for h=0 any of several ways algebraically. One is by factoring.

  h = 0 = -16t² +28t +8 . . . . . . . . . . . . the ball hits the ground when h = 0

  0 = -4(4t² -7t -2) = -4(4t +1)(t -2)

This has t-intercepts where the factors are zero, at t=-1/4 and t=2.

The ball will hit the ground after 2 seconds.

4 0
3 years ago
Can someone help me with this
Dennis_Churaev [7]

Answer:

The equation for your graph is Y=2x+1

4 0
2 years ago
How many cups are there in 41/2gallons of fruit punch
adoni [48]
72 cups (US Gallons)

1 gallon = 19.215 cups.
8 0
3 years ago
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