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never [62]
3 years ago
10

What was her score on this exam, rounded to the nearest integer

Mathematics
1 answer:
beks73 [17]3 years ago
8 0

Answer:

Where is the number I need to round to?

(Please don't give me a bad rating i'm trying to help :) )

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anyanavicka [17]

Answer:

The answer is 65.97 yd^3

Step-by-step explanation:

The volume of a cone is: v = \pi r^{2}\frac{h}{3}

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I need help with this problem
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In 56 years ,Kevin will be 9 times as old as he is right now.<br><br> How old is he right now?
m_a_m_a [10]

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Step-by-step explanation:

5 0
3 years ago
If x^2+y^2=1, what is the largest possible value of |x|+|y|?
Marianna [84]

If <em>x</em>² + <em>y</em>² = 1, then <em>y</em> = ±√(1 - <em>x</em>²).

Let <em>f(x)</em> = |<em>x</em>| + |±√(1 - <em>x</em>²)| = |<em>x</em>| + √(1 - <em>x</em>²).

If <em>x</em> < 0, we have |<em>x</em>| = -<em>x</em> ; otherwise, if <em>x</em> ≥ 0, then |<em>x</em>| = <em>x</em>.

• Case 1: suppose <em>x</em> < 0. Then

<em>f(x)</em> = -<em>x</em> + √(1 - <em>x</em>²)

<em>f'(x)</em> = -1 - <em>x</em>/√(1 - <em>x</em>²) = 0   →   <em>x</em> = -1/√2   →   <em>y</em> = ±1/√2

• Case 2: suppose <em>x</em> ≥ 0. Then

<em>f(x)</em> = <em>x</em> + √(1 - <em>x</em>²)

<em>f'(x)</em> = 1 - <em>x</em>/√(1 - <em>x</em>²) = 0   →   <em>x</em> = 1/√2   →   <em>y</em> = ±1/√2

In either case, |<em>x</em>| = |<em>y</em>| = 1/√2, so the maximum value of their sum is 2/√2 = √2.

6 0
3 years ago
Write 2.71 as a simplified fraction.
charle [14.2K]

Answer:

271/100.

Step-by-step explanation:

3 0
3 years ago
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