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3 years ago

Dalle note 3 green 1 we ame 7 vel maps on abier med up and make one of the

Mathematics

1 answer:

Zina [86]3 years ago

8 0

Answer:

I have no idea what this means

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In a class of pupils, 11 play the flute and piano.

Natali5045456 [20]

Answer:

The answer is 29

Step-by-step explanation:

11+10+5+3=29

5 0

2 years ago

3 Gordon is selling popcorn that costs

riadik2000 [5.3K]

Answer:

30 more bags

Step-by-step explanation:

7 0

3 years ago

Find a and b so that f(x) = x^3 + ax^2 + b will have a critical point at (2,3).

Digiron [165]

Using the critical point concept, it is found that a = -3 and b = 7.

<h3>What are the critical points of a function?</h3>

The critical points of a function are the values of x for which:

$f^{\prime}(x) = 0$

In this problem, the function is:

$f(x) = x^3 + ax^2 + b$

Hence, the derivative is:

$f^{\prime}(x) = 3x^2 + 2ax$

Then:

$f^{\prime}(x) = 0$

$3x^2 + 2ax = 0$

$x(3x + 2a) = 0$

$x = 0$

$3x + 2a = 0$

$3x = -2a$

$x = -\frac{2a}{3}$

Since the critical point is at x = 2, we have that:

$-\frac{2a}{3} = 2$

$-2a = 6$

$2a = -6$

$a = -3$

Then:

$f(x) = x^3 - 3x^2 + b$

Critical point at (2,3) means that when $x = 2, y = 3$ , then:

$3 = 2^3 - 3(2)^2 + b$

$8 - 12 + b = 3$

$b = 7$

You can learn more about the critical point concept at brainly.com/question/2256078

4 0

1 year ago

What are four consecutive numbers if the sum is 604

antiseptic1488 [7]

Answer:

149.5, 150.5 , 151.5, 152.5

Step-by-step explanation:

n+(n+1)+(n+2)+(n+3)= 604

Combine Like Terms

4n + 6 = 604

Subtract 6

4n = 598

Divide by 4

n=149.5

Check Your Work:

149.5+150.5+151.5+152.5 = 604

5 0

3 years ago

What are the the factors of 21x squared cause I can't find it

dem82 [27]

Factor
7
x
7
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2
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.
7
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(
2
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)
−
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Factor
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.
7
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(
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)
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7
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(
−
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7
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7
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-
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Factor
7
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7
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out of
7
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7
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2
x
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6 0

3 years ago

Read 2 more answers