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Nataliya [291]
3 years ago
13

Question 4 PLEASE HELP FAST! ILL GVIE BRAINLIST AND EXTRA POINTS which of the following expression is a factor of x^2 -8x -20

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
4 0

Answer: A - x-2

Step-by-step explanation:

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Consider the following function. f(x) = 9 − x2/3 Find f(−27) and f(27). f(−27) = f(27) = Find all values c in (−27, 27) such tha
oksano4ka [1.4K]

I guess the function is f(x)=9-x^{2/3}. Then f(-27)=0 and f(27)=0.

The derivative is f'(x)=-\dfrac23 x^{-1/3}, but there is no c such that

-\dfrac23c^{-1/3}=0

This doesn't contradict Rolle's theorem because f'(0) does not exists. In other words, f is not differentiable on (-27, 27), so the conditions of Rolle's theorem are not met. (Looks like that would be the last option, or the second to last option if the last one is "Nothing can be concluded")

6 0
3 years ago
Equivalent to 28xy+16x
snow_tiger [21]

Answer:

4x(7y+4)

5 0
2 years ago
PLEASE HELP ASAP!!
34kurt

Answer:

$123

Step-by-step explanation:

230/20=11.5

11.5x2=23

23+100=123

4 0
3 years ago
How to work out the medium in maths
Elis [28]

Answer:

To find the median you cross off the first few numbers and the last few until you get to the middle then when you get the middle number that will be your median

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Twice the difference of a number + -3 is 4 find the number
NNADVOKAT [17]

Answer:

The number is 5

Step-by-step explanation:

If we need to find the hidden number, Which for simplicity's sake we will denote as "n", lets first write out the equation.

"2 x [n + (-3)] = 4"

We can work through this problem backwards. if we need two times the sum of "n" and (-3) to get to 4, the only number that can be multiplied by 2 to get a product of 4 is 2, so "n" + (-3) must equal 2. so, From here, we can figure out that since 5 + (-3) equals 2, "n" Must equal 5. so, if we plug in 5 for "n" the equation looks like this:

"2 x [5 + (-3)] = 4"

So, since the equation makes sense, the answer is, "n = 5"

7 0
3 years ago
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