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taurus [48]
3 years ago
6

What does 3 9/10 + 4/5 equal?

Mathematics
2 answers:
dalvyx [7]3 years ago
8 0
3.5 above is how I did the problem

andreyandreev [35.5K]3 years ago
4 0
3 9/10 + 4/5

39/10 + 4/5

39/10 + 8/10

47/10= 4 7/10
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Evaluate the expression for the given value of x<br><br> 7x + 8 for x = 2
Anit [1.1K]

Answer:

22

Step-by-step explanation:

Since x = 2, we can tell that x is equal to 2.

So this is basically asking 7 times 2 plus 8

7(2) + 8 = ?

14 + 8 = 22

Hope this helps!

4 0
3 years ago
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What is the slope below
raketka [301]

Answer:

-1

Step-by-step explanation:

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change in y

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change in x

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Your uncle is currently four times as old as you are. In five years, your uncle will be three times as old as you. What is your
sertanlavr [38]

Answer:

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Step-by-step explanation:

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8 0
2 years ago
) For which values of x is f '(x) zero? (Enter your answers as a comma-separated list.) x = (No Response) For which values of x
grigory [225]

Answer:

Check below, please

Step-by-step explanation:

Step-by-step explanation:

1.For which values of x is f '(x) zero? (Enter your answers as a comma-separated list.)

When the derivative of a function is equal to zero, then it occurs when we have either a local minimum or a local maximum point. So for our x-coordinates we can say

 f'(x)=0\: at \:x=2, and\: x=-2

2. For which values of x is f '(x) positive?

Whenever we have  

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 f'(x)>0 \:at [-4,-2) \:and\:(2, \infty)

3. For which values of x is f '(x) negative?  

On the other hand, every time the function is decreasing its derivative would be negative. The opposite case of the previous explanation. So

 f'(x)

4.What do these values mean?

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5.(b) For which values of x is f ''(x) zero?

In its inflection points, i.e. when the concavity of the curve changes. Since the function was not provided. There's no way to be precise, but roughly

at x=-4 and x=4

6 0
3 years ago
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