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geniusboy [140]
2 years ago
11

HELP, PLATO!!!!!!!

Mathematics
1 answer:
Keith_Richards [23]2 years ago
7 0

Answer:

the law of cosines with ABC

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A rectangular lot whose perimeter is 340ft is fenced along three sides. An expensive fencing along the lot's length cost $42 per
Anon25 [30]
220 ft in cheap fence
and 95.71 in expensive <span />
5 0
3 years ago
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A box contains 14 nickels, 15 dimes and 6 pennies. if a coin is picked at random from the box, what is the average value of the
Sidana [21]

Answer:

$0.0646 is the expected value of the draw.

Step-by-step explanation:

1 nickel = 5 cents

1 dime = 10 cents

1 penny = 1 cent

Total number of coins = 14+15+6=35

Probability that a nickel is selected is = 14/35

Probability that a dime is selected is = 15/35

Probability that a penny is selected is = 6/35

So, the expected value of the draw will be =

\frac{14}{35}*5+\frac{15}{35}*10+\frac{6}{35}*1

\frac{70}{35}+\frac{150}{35}+\frac{6}{35}=\frac{226}{35}

= 6.457 cents ≈6.46 cents

So, in dollars it is = \frac{6.46}{100} = $0.0646

So, $0.0646 is the expected value of the draw.

5 0
3 years ago
Three friends went apple picking and then counted the apples they picked.
Marizza181 [45]

Answer:

Carmen has the biggest red to green apple ratio

Step-by-step explanation:

Red to green apple ratios are, in order, 20:12, (5:3), 12:10 (6:5), and 16:20 (4:5). 5:3 is the biggest red to green apple ratio because for every 5 red apples Carmen has 3 green apples.

7 0
2 years ago
1. A submarine is 40 meters below sea level. It goes up 12 meters, then goes down 30 meters. What is the submarine's new positio
Lilit [14]

Answer:

Question Number 1: C. -58 meters

Question Number 2: 1.45 lbs

Step-by-step explanation:

<em><u>Question Number 1: </u></em>

40 - 12 = 28 meters below sea level

28 + 30 = 58 meters below sea level . So respectively its negative, so -58 would be your answer .

<em><u>Question Number 2: </u></em>

To figure out how many pounds of carrots are in each cake, divided 7.25 by 5. That equals 1.45. So one cake needs 1.45 pounds of carrots.

8 0
3 years ago
5.Solve the system using substitution.
Nikolay [14]
OK first convert one of the equations into Y=MX+b form

Y-2x = 3
Add 2X

Y = 2x +3
Now substitute this equation in the other one.
So it would be

3X - 2Y = 5

3X-2(2x+3) = 5

Now solve for y

3X - 4X - 6 = 5

-1X - 6 = 5

Add 6

-1X = 11

X = -11

Now substitute this into one of the equations

Y - 2X = 3

Y -2(-11) = 3

Y +22 = 3

y = 3-22

y = -19


8 0
3 years ago
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