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mylen [45]
3 years ago
13

What is the volume of the cone?

Mathematics
1 answer:
timama [110]3 years ago
4 0
The formula is V=1/3area of base*high
v=1/3*πr^2*h
=1/3*49π*9=49π*3=147πcm^3
a is the correct answer
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2*4+3
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11
 
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Step-by-step explanation:

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3 years ago
A trust fund worth $25,000 is invested in two different portfolios. This year, one portfolio is expected to earn 5.25% interest
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Step-by-step explanation:

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I = Prt

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\begin{array}{rcr}0.0525x + 0.04(25000- x) & = & 1150\\0.0525x+ 1000 - 0.04x & = & 1150\\0.0125x + 1000 & = & 1150\\0.0125x & = & 150\\x & = & 12000\\\end{array}

25 000 - x = 25 000 - 12 000 = 13 000

So, $12 000 is invested in Portfolio 1 and $13 000 is invested in Portfolio 2.

Check:

\begin{array}{rcl}0.0525 \times 12000 + 0.04(25000 - 12000)& = & 1150\\630 + 0.04(13000) & = & 1150\\630 + 520 & = & 1150\\1150 & = & 1150\\\end{array}

OK.

4 0
4 years ago
Is the following shape a square? How do you know?
nevsk [136]

Answer:

C. Yes the opposite sides are parallel and all sides are the same length.

Step-by-step explanation:

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3 0
3 years ago
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