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maxonik [38]
3 years ago
15

Domain in interval notation please

Mathematics
2 answers:
Scrat [10]3 years ago
7 0

Answer:

[-7, negitive infinity]

[-2, positive infinty]

Step-by-step explanation:

HOPE THIS HELPS!

Brainliest...

weqwewe [10]3 years ago
4 0

Answer:

[-7,-∞) U [-2,∞)

Step-by-step explanation:

x ≤ -7 and x ≥ -2

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What is the maximum number of possible extreme values for the function,
Liula [17]

Answer:

<h2>(0.3, -18.45).</h2>

Step-by-step explanation:

We need to recur to the extreme value theorem, which states: "If a function is continuous on a closed interval, then that function has a maximum and a minimum inside that interval".

Basically, as the theorem states, if a dunction is continuous, then it has maxium or minium.

In this case, we have a quadratic function, which is a parabola. An important characteristic of parabolas is that they have a maximum or a minium, but they don't have both. When the quadratic term of the fuction is positive, then it has a minium at its vertex. When the quadratic term of the function is negative, then it has a maximum at its vertex.

So, the given function is f(x)=x^{2} +4x^{2} -3x-18=5x^{2} -3x-18, where the quadratic term is positive, so the functions has a minimum at V(h,k), where h=-\frac{b}{2a} and k=f(h), let's find that point

<h3>h=-\frac{-3}{2(5)} =\frac{3}{10} =0.3</h3><h3>k=f(0.3)=5(0.3)^{2} -3(0.3)-18=0.45-0.9-18=-18.45</h3><h3 /><h3>Therefore, the minium of the function is at (0.3, -18.45).</h3>
8 0
3 years ago
Help!!!!!!!!<br> What is the value of the base?
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Just multiply next time :)
8 0
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Katyanochek1 [597]

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Step-by-step explanation:

5 0
3 years ago
How many m in 300 cm? show steps.​
Alexxandr [17]

Answer:

3m

Step-by-step explanation:

we know that u know but ok

there are 100 cm in one meter .

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5 0
2 years ago
Meghan has two less dimes as she does nickels and one more than double the amount of quarters as she does nickels for a total of
defon

Answer:

The number of nickel = 3

Number of dime =  1

Number of quarter  = 7

Step-by-step explanation:

Let us assume the number of nickels Meghan has = m

So, the number of dimes she has = m -2

And the number of quarters she has = 1  + 2 m

Now, the total amount she has  = $2.00

1 nickel = $0.05  ⇒  m nickel =  m ($0.05)  = 0.05 m

1 dime = $0.10 ⇒  (m -2) dime =  m-2  ($0.10)  = 0.10 (m-2)

1 quarter  = $0.25  ⇒  (1+ 2m) quarter = (1+ 2m) ($0.25)  = 0.25 (1+2m)

So, according to the question:

Amount of (nickel + dime + quarter) = $2.00

⇒  0.05 m +  0.10 (m-2) +  0.25 (1+2m) = 2

or, 0.05 m + 0.10 m - 0.20 + 0.25  + 0.5 m = 2

or, 0.65 m = 2 - 0.05

or, m = 1.95/0.65 =  3

or,  m  = 3

Hence, the number of nickel = 3

Number of dime =   m -2  =  3-2  =   1

and Number of quarter = 2m + 1 = 7

8 0
4 years ago
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