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Makovka662 [10]
3 years ago
7

QUESTION IN PHOTO, HELP ASAP

Mathematics
1 answer:
Luba_88 [7]3 years ago
6 0
I don’t get the question? What are you trying to find?
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What is 8r + 12p - 7 - 3p and how to get it
MrRa [10]
8r+(12-3)p-7------>8r+9p-7





3 0
3 years ago
A light bulb consumes 3600 watt-hours per day. How long does it take to consume 18900 watt-hours?
Pie

Answer

5 days and six hours or 126 hours

5 0
3 years ago
Read 2 more answers
The theoretical probability of spinning an even number on a spinner is 23. The spinner has 8 even-numbered sections. How many se
meriva

Answer:

there are 12 sections

here is how to do it:

2 8

_ = _

3 x

so you cross multiply

8 x 3 = 2x

24=2x

12=x

Step-by-step explanation:

6 0
3 years ago
A lampshade has a height of 12cm and upper and lower diameters of 10cm and 20cm A)what area of material is required to cover tha
netineya [11]

Answer:

(a)\ Area = 195\pi

(b)\ Volume = 700\pi

Step-by-step explanation:

Given

h = 12

d_1 = 10 --- lower diameter

d_2 = 20 --- upper diameter

Solving (a): The curved surface area

This is calculated as:

Area = \pi l(r_1 + r_2)

Where

r_1 = 0.5 * d_1 = 0.5 * 10 = 5 --- lower radius

r_2 = 0.5 * d_2 = 0.5 * 20 = 10 --- upper radius

And

l = \sqrt{h^2 + (r_1 - r_2)^2 ---- l represents the slant height of the frustrum

l = \sqrt{12^2 + (5 - 10)^2

l = \sqrt{12^2 + (-5)^2

l = \sqrt{144 + 25

l = \sqrt{169

l = 13

So, we have:

Area = \pi l(r_1 + r_2)

Area = \pi * 13(5 + 10)

Area = \pi * 13(15)

Area = 195\pi

Solving (b): The volume

This is calculated as:

Volume = \frac{1}{3}\pi * h * (r_1^2 + r_2^2 + (r_1 * r_2))

This gives:

Volume = \frac{1}{3}\pi * 12 * (5^2 + 10^2 + (5 * 10))

Volume = \frac{1}{3}\pi * 12 * (25 + 100 + (50))

Volume = \frac{1}{3}\pi * 12 * (175)

Volume = \pi *4 * 175

Volume = 700\pi

6 0
3 years ago
how would a table help you find the number of minutes it took joe to cut the sheet metal into 5 pieces
Alinara [238K]
He'll make 7 cuts. If you can't see that that is the answer, draw a diagram. 

<span>7 * 5 = ?</span>
6 0
3 years ago
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