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tensa zangetsu [6.8K]
3 years ago
13

Question from my math test

Mathematics
1 answer:
frutty [35]3 years ago
4 0

Answer:

The manager skipped June

Step-by-step explanation:

In the first bar we can see the sales are from

January - February

Then,

March - April.

But then, the store manager goes from

May - July,

and totally skipped June, therefore making it look like the sales have increased.

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Consider the experiment of tossing a fair coin 3 times. For each coin, the possible outcomes are heads or tails.(a) List the equ
Burka [1]

Answer:

a)

H - H - H

H - H - T

H - T - H

H - T - T

T - H - H

T - H - T

T - T - H

T - T - T

b)

0.125 = 12.5% probability that all three coins come up heads.

0.875 = 87.5% probability that there will be at least one tail.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Question a:

Considering H for heads, T for tails:

H - H - H

H - H - T

H - T - H

H - T - T

T - H - H

T - H - T

T - T - H

T - T - T

(b) What is the probability that all three coins come up heads?

One outcome(H - H - H) out of 8, so:

p = \frac{1}{8} = 0.125

0.125 = 12.5% probability that all three coins come up heads.

Notice that the complement of the event "3 heads" is "at least one tail." Use this information to compute the probability that there will be at least one tail.

Sum of these probabilities is 100%, so:

1 - 0.125 = 0.875

0.875 = 87.5% probability that there will be at least one tail.

6 0
2 years ago
Please help, need to find x and y :))
blondinia [14]

Answer:

x=14

y=140

Step-by-step explanation:

Using (9x+14) + (3x-2) = 180, we can solve this equation.

First add like values giving you 12x+12=180. Then subtract 12 from both sides giving you 12x=168.

Then divide both sides by 12 giving you x=14.

Finally, just simply set 9x+14 equal to y and substitute x for 14. This gives you 140=y

Hope this helped

6 0
3 years ago
Read 2 more answers
Can someone help me with this or give me a link to the answers please
lana [24]

sorry it can't fit the other half

5 0
2 years ago
There are six cups which each hold 340ml. What is the total ml
SSSSS [86.1K]

Answer:

2040ml

Step-by-step explanation:

4 0
2 years ago
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An item is regularly priced at $30. It is now priced at a discount of 30% off the regular price. What is the price now?
stiv31 [10]
The price of the item will be 21$
7 0
2 years ago
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