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dalvyx [7]
3 years ago
13

Need help on both these questions please thank you

Mathematics
1 answer:
Elena L [17]3 years ago
8 0
Remember that the volume of a cone is 1/3 \pi r^2h
Thus;

1. 2^2 = 4
4pi(7) = 28pi
28/3 = 9 \frac{1}{3}
ANS = 9 \frac{1}{3}  \pi or ~29.32

2. d = 18, r = 9
9 ^ 2 = 81
81pi (18) = 1458pi
1458 / 3 = 486
ANS = 486 \pi or ~1526.81

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If Tim does not buy DEF, how much can he spend on ABC?
tatyana61 [14]
Given that 100 shares of ABC costs $425 and 100 shares of DEF costs $600 with a $375 commission.

Part A:

<span>If Tim does not buy DEF, then he has $425 + $600 + $375 = $1,400 to spend on ABC.

Therefore, Tim has $1,400 to spend on ABC if he does not buy DEF.


Part B:

</span><span>Given that 100 shares of ABC costs $425, then 1 share of ABC costs $425 / 100 = $4.25.

From part A, we have that </span>Tim has $1,400 to spend on ABC if he does not buy DEF.

Thus, I<span>f Tim does not buy DEF, he can buy $1,400 / $4.25 = 329.4 shares of ABC.

Therefore, Tim  </span>can buy 329.4 <span>shares of ABC if he does not buy DEF.



Part C:

Given that Tim spent $1,400 to buy shares of ABC when he did not buy DEF. </span>
<span>
If the selling price is $2,100, Tim will have earned $2,100 - $1,400 = $700 by investing if he did not buy DEF

Therefore, </span><span>If the selling price is $2,100, Tim will have earned $700 by investing if he did not buy DEF.



Part D:

Given that the selling price is $2,100 and the cost price is $1,400, then the cash to Tim divided by the total cost, if he did not buy DEF is given by $2,100 / $1,400 = 1.5 = 150%

Therefore, </span><span>the cash to Tim divided by the total cost in this example to the (nearest 1%), if he did not buy DEF</span> is 150%
5 0
4 years ago
The equation d = 16t
Reika [66]

Answer:

0.25 seconds

Step-by-step explanation:

4 = 16t

t = 1/4 =0.25 seconds

4 0
4 years ago
Can someone help me out with this please?
andrezito [222]

HehehegetikiiiiiAnswer:

Step-by-step explanation:

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7 0
4 years ago
Simplify the expression.<br><br> (–6i)(–4i)<br> A. –24<br> B. 24i<br> C. –24i<br> D. 24
Slav-nsk [51]

Answer:

<h2>A. -24</h2>

Step-by-step explanation:

\text{We know:}\ i=\sqrt{-1}\to i^2=-1\\\\(-6i)(-4i)=(-6)(-4)i^2=(24)(-1)=-24

3 0
3 years ago
What number can be written as 40 + 5
Cerrena [4.2K]

a number that can written as 40 + 5 will be 45



6 0
3 years ago
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