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irinina [24]
3 years ago
15

I have to finish this packet for tomorrow and I need help with this question

Mathematics
1 answer:
timofeeve [1]3 years ago
3 0

The answer is b

If you go backwards on a number line, you are subtracting--which is the same as adding a negative.

First you go backwards 3 numbers, and then to get to -7, you went down (decreased) by 4 more, or subtracted 4 (added a negative 4)

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Explain how you can tell the function f (x) = |x + 4| is not linear by using points on its graph.
zhannawk [14.2K]

If there are any three points on the graph that are not on the same line, the function is nonlinear. Such points might be ...

... (-5, 1), (-4, 0), (-3, 1)

6 0
3 years ago
Mark dropped an object from a bridge 400 feet above the ground level with an initial velocity of 0. He knows that the gravitatio
lisabon 2012 [21]

Answer:

The first listed equation is the correct equation to solve

The correct answer is: t = 5 seconds

Step-by-step explanation:

Let me mention first that there is an error in the statement that the gravitational pull of the Earth is 16 ft/s^2. It is in fact 32 ft/s^2, and the actual equation uses half of the acceleration multiplied by the square of the variable time, so it gives as final expression :

y(t)=-16\,t^2+ 0 \,t +400

and we want to find the value/s for "t" that make this equation equal zero (when it reaches the ground and the object just touches the ground. This makes the equation we want to solve:

0=-16\,t^2+ 0 \,t +400\\16\,t^2+0\,t -400=0

which solving for "t" becomes:

16\,t^2-400 =0\\16\,t^2=400\\t^2=\frac{400}{16} \\t^2=25\\t= +/- 5\,\,sec

So we adopt the positive answer (positive time) since the negative value has no physical meaning for this problem.

That is: t = 5 seconds

6 0
3 years ago
Please solve fast. I will give Brainleist or whatever it’s called
alina1380 [7]

Answer:

84in

Step-by-step explanation:

84in

4 0
2 years ago
G(a) = a + 2. Find f(-7).
Mrrafil [7]

Answer:

-5= g(a)

Step-by-step explanation:

assuming this is a typo and you meant to say g(-7).

-7 +2 = -5

4 0
3 years ago
Help me please!!!!!1
fenix001 [56]

Answer:

2/3

Step-by-step explanation:

It would be 2/3 because on the top you add two and then on the bottom you add three each time.

5 0
1 year ago
Read 2 more answers
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