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dmitriy555 [2]
3 years ago
7

Let f(x)=x^2+3x−4 .

Mathematics
2 answers:
Darina [25.2K]3 years ago
6 0

Answer:

verified answer is 8

Step-by-step explanation:

Oxana [17]3 years ago
4 0

I haven't done this kind of work in a bit, but I believe it's 8.

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Three coins are tossed.Find the probablility that two land on heads.
REY [17]

Answer:

let me just say this

Step-by-step explanation:

you're luck not mine so sorry if this didnt help

4 0
3 years ago
Find the absolute maximum and absolute minimum values of f on the given interval. (If an answer does not exist, enter DNE.)
vodka [1.7K]

Answer:

absolute max is 120 and absolute min is -8

Step-by-step explanation:

Find critical numbers

f'(x) = 3x^2 - 12x + 9 = 0

= 3(x^2 - 4x + 3) = 0

3(x-3)(x-1) = 0

(x-3) = 0 or (x-1)=0

x = 1,3

Test them!

x<1     Sign of f' on this interval is positive

1<x<3 Sign of f' on this interval is negative

x>3    Sign of f' on this interval is positive

f(x) changes from positive to negative at x = 1 which means there is a relative maximum here.

f(x) changes from negative to positive at x = 3 which means there is a relative minimum here.

Test the endpoints to find the absolute max and min.

f(-1) = -8

f(1) = 12

f(3) = 8

f(7) = 120

The absolute maximum value of f is 120 and the absolute minimum value of f is -8.

7 0
3 years ago
Best answer gets BRAINLIEST and 30 pts
Ainat [17]

Answer:

One person ordered chicken, and five people ordered steak.

X=Chicken

Y=Steak

Step-by-step explanation:

X+Y=6

14x + 17y= 99

5 0
3 years ago
Read 2 more answers
Find the distance between (4,2) and (-4,-4)
VikaD [51]
Use the distance formula, and plug in values.
d = \sqrt{(x_{2}-x_{1} )^{2}+(y_{2}-y_{1} )^{2}}
<u />d = \sqrt{( -4-4 )^{2}+( -4-2 )^{2}}
d = \sqrt{( -8 )^{2}+( -6 )^{2}}
d = \sqrt{64+36}
d= \sqrt{100}

Therefore, the distance is equal to "10".




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3 years ago
Day 57 of making brainly accounts with random ppl emails
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Answer: .......

Step-by-step explanation:

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2 years ago
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