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Vsevolod [243]
3 years ago
14

If f(x) = 5x – 2 and g(x) = 2x + 1, find (f- g)(x).

Mathematics
1 answer:
GalinKa [24]3 years ago
7 0

Answer:

la respuesta es A. 3x - 3

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I need help with another set of math questions.
Anit [1.1K]
For question 11, you essentially need to find when h(t) = 0, since that is when the height of the ball reaches 0 (ie touches the ground).

For question 12, it is asking for a maximum height, so you need to find when dh/dt = 0 and taking the second derivative to prove that there is maximum at t. That will find you the time at which the ball will hit a maximum height.

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7 0
3 years ago
How do you write 5.9 in expanded form
tresset_1 [31]
<span><u><em>Answer:</em></u>
(5 * 1) + (9 * 0.1).<span>

<u><em>Explanation:</em></u>
To write a number in expanded form you have each digit multiplied by its numbers place and add each digit together. 5 is in the ones place so it becomes (5 * 1).
9 is in the tenths place so it becomes (9 * 0.1).
add them together to get (5 * 1) + (9 * 0.1)</span></span>
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3 years ago
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A ball is shot upward from a slingshot at a velocity of 15 m/s the height of the ball after t seconds is given by h(t)=10+ 5t+1/
otez555 [7]

Answer:

The instantaneous velocity after eight seconds is 9 m/s

Step-by-step explanation:

Given as :

The ball shot upward with velocity of 15 m/s

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Now, The instantaneous velocity after 8 sec = \frac{\partial h(t)}{\partial t}

Or, The instantaneous velocity = \frac{\partial (10 +5t + \frac{1}{4}t^{2})}{\partial t}

or, The instantaneous velocity = 5 + \frac{1}{4}\times 2 t

Now at t = 8 sec

The instantaneous velocity = 5 + 4 = 9 m/s

Hence The instantaneous velocity of ball at t = 8 sec , is 9 m/s  Answer

3 0
3 years ago
Bella had already read 20% of the book before her teacher assigned it to the class. She is choosing between two options to finis
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How big is the book?

If it has more than 96 pages remaining 25% each night is quicker if it has less that 96 or less remaining 24 pages a night is faster

Step-by-step explanation:

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For problems 11-14, identify the property shown. 11. 16×p=16.​
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Answer:

Step-by-step explanation:

11. identity property

12. associative property

13. commutative property

14. zero property

4 0
2 years ago
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