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3 years ago

QUICKK EXPERTS/ACE/GENIUSES

Mathematics

1 answer:

balandron [24]3 years ago

6 0

radius would be 1.5

answer would be A. 16.49

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Jace invested $380 in an account paying an interest rate of 6.2% compounded continuously. Assuming no deposits or withdrawals ar

SOVA2 [1]

Answer: 960

Step-by-step explanation:

5 0

2 years ago

PLEASE HELP!

Wittaler [7]

Answer:

See below

Step-by-step explanation:

Use the formulae directly

For a cone, with base radius = r and height = h, here are the related formula

$\textrm{Slant height l} = \sqrt{r^2 + h^2}$ (1)

$\textrm{Lateral surface area} = \pi r l$

$\textrm {Base area} = \pi r^2$

$\textrm { Total Surface Area SA} = \textrm{Base Area + Lateral Area} = \pi r^2 + \pi rl = \pi r(r + l)$ (2)

$\textrm{Volume V = } (1/3) \pi r^2h$ (3)

Therefore directly plugging in the numbers in the above equations:

Note:

l = slant height in cm
SA = total surface area in sqcm
V = Volume in cubic cm

Figure(a)

r = 4, h = 8

$\textrm{l} = \sqrt{4^2 + 8^2} =\sqrt{80} = 8.944 \\\textrm{SA} = 4\pi(4 + 8.944) = 4\pi(12.944) = 162.66\\\textrm{V} = (1/3)\pi(4^2)(8) = 134.04$

Figure(b)

r = 7, h =15

$\textrm{l} = \sqrt{7^2 + 15^2} =\sqrt{274} = 16.55$

$\textrm{SA} = 7\pi(7 + 16.55) = 517.89$

Figure (c)

r = 5, l = 8

$h = \sqrt{l^2 - r^2} = \sqrt{8^2 - 5^2} = \sqrt{39} = 6.245\\SA = \textrm{SA} = 5\pi(5 + 8) = 204.2\\V = (1/3)\pi(5^2)(6.245) = 163.5$

6 0

2 years ago

Rounds 9,820 to the thousand

Shtirlitz [24]

The answer is 10,000

5 0

3 years ago

Read 2 more answers

2s+10-7s-8+3s-7<br> syplifying expression fyi

Solnce55 [7]

Answer:

-1+5z, -25+20y, 4d+14, 2n-2, 40k+8, 8b+5, -9+22p

Step-by-step explanation:

1) -4+7z+3-2z

-1+5z

2) 15+4(5y-10)

15+20y-40

-25+20y

3) 2d+17-3-2d+4d

4d+14

4) 12n-8-2n+10-4

2n-2

5) 8(2k+1+3k)

16k+8+24k

40k+8

5) 4(2b+2)-3

8b+8-3

8b+5

6) -4+8p-6p-5+20p

-9+22p

7 0

3 years ago

What is the answer to this inequality -X+5<-1/3+17=?

ExtremeBDS [4]

Add the numbers: 3+17 = 20

-x + 5 < -1/20

Apply the fraction rule: -a/b = - a/b

-x + 5 < - 1/20

Subtract 5 from both sides

-x + 5 - 5 < 1/20 - 5

Simplify

-x< - 101/20

Multiply both sides by -1 (reverse the inequality)

(-x) (-1) > (-101/20) (-1)

x> 101/20 is the final answer

6 0

2 years ago