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Aloiza [94]
1 year ago
9

The area of a circle is 18.31cm2. find the length of the radius rounded to 2 dp.

Mathematics
1 answer:
drek231 [11]1 year ago
5 0

Answer:

Step-by-step explanation:

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WILL GIVE BRAINLIEST
Elenna [48]

Answer:

C is correct

Step-by-step explanation:

do you know why? haha

5 0
2 years ago
A light bulb consumes 3600 watt-hours in 3 days and 18 hours. How many watt-hours does it consume per day?
Tasya [4]

18 hours = 18/24  reduces to 3/4 of a day

3/4 = 0.75

so 3600/3.75 = 960 watts per day

3 0
3 years ago
Read 2 more answers
What is the gcf of 24 30 42
olga55 [171]

GCF(24, 30, 42) = 6 I think it is.

 

6 0
2 years ago
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Someone help please i don’t want to fail math
VladimirAG [237]

Answer:

Image below!

Step-by-step explanation:

<u>Plotting </u>\underline{y=2x+3}<u />

Step 1: determine the y-intercept

(0,3)

  • plot the point as the first point on the graph

Step 2: Move 2 units up, and 1 unit left (keep repeating this process until you have reached the limit of the graph)

Step 3: Go to the other side of the graph of the first point (y-intercept)

  • move 2 units down, and 1 unit right keep repeating this process until you have reached the limit of the graph)

<em>When you've completed this process, it should look like this:</em>

5 0
2 years ago
The length of a phone conversation is normally distributed with a mean of 4 minutes and a standard deviation of 0.6 minutes. Wha
Arlecino [84]
The z-score for 5 minutes is found from:
z=\frac{X-\mu}{\sigma}&#10;
z=\frac{5-4}{0.6}=1.667
Reference to a normal distribution table shows that the cumulative probability for a z-score of 1.667 is around 0.9522.
Therefore the probability that a conversation lasts for longer than 5 minutes is:
1 - 0.9522 = 0.048 to 3 d.p.
8 0
3 years ago
Read 2 more answers
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