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Likurg_2 [28]
2 years ago
15

Please help it's not working

Mathematics
1 answer:
Vaselesa [24]2 years ago
5 0

Answer: 582.7526

Step-by-step explanation:

p =3,14

r =13,4:2=6.7

r^2=44.89

SA= 3,14*44.89+3,14*6,7*21= 582,7526

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Write the equation of the line parallel to 9x - 3y = 27 which passes through the point (6,2)
Nana76 [90]

Answer:

y=3x-16

Step-by-step explanation:

-3y=-9x+27

y=3x-9

slope: 3

y-2=3(x-6)

y-2=3x-18

y=3x-16

8 0
3 years ago
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a circuit overloads at 1800 watts of electricity you plug a microwave oven that uses 1100 watts into the circuit write and solve
Bogdan [553]
Let w be the additional watts you can add on the circuit.

1100 + w < 1800 (write the inequality)
-1100 -1100 ( - 1100 from each side)

w < 700 (simplify)


ANSWER:
You can add up to 700 watts to the circuit, which means that you can also plug in the clock radio and the blender.


LOOK BACK:
You can check that your answer is correct by adding the numbers of watts used by the microwave oven, clock radio and blender.

1100 + 50 + 300 = 1450

The circuit will not overload because the total wattage is less than 1800 watts.
5 0
3 years ago
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Joe is placing tile in a small rectangular room. The room measures 8 feet by 5.5 feet. If one square foot tiles are sold in pack
Anit [1.1K]

Answer:

4

Step-by-step explanation:

The area, a of the room is 8* 5.5

a = 44 sqaure feet

one square foot of tiles are sold in packages of 12

To get the number of packages needed, simply divide the area of the room by 12

This gives:

44/12 = 4

= 3.67   round up to the nearest whole number

= 4

6 0
3 years ago
3(4k+n) = 12k +n or 12k+3n?​
blagie [28]

Answer:

12k+3n

Step-by-step explanation:

5 0
3 years ago
What is the likelihood that a fair coin will land heads or tails?
Marina CMI [18]

Answer:

I believe it is 0.5

Step-by-step explanation:

If you flip a normal coin (called a “fair” coin in probability parlance), you normally have no way to predict whether it will come up heads or tails. Both outcomes are equally likely. There is one bit of uncertainty; the probability of a head, written p(h), is 0.5 and the probability of a tail (p(t)) is 0.5. The sum of the probabilities of all the possible outcomes adds up to 1.0, the number of bits of uncertainty we had about the outcome before the flip. Since exactly one of the four outcomes has to happen, the sum of the probabilities for the four possibilities has to be 1.0. To relate this to information theory, this is like saying there is one bit of uncertainty about which of the four outcomes will happen before each pair of coin flips. And since each combination is equally likely, the probability of each outcome is 1/4 = 0.25. Assuming the coin is fair (has the same probability of heads and tails), the chance of guessing correctly is 50%, so you'd expect half the guesses to be correct and half to be wrong. So, if we ask the subject to guess heads or tails for each of 100 coin flips, we'd expect about 50 of the guesses to be correct. Suppose a new subject walks into the lab and manages to guess heads or tails correctly for 60 out of 100 tosses. Evidence of precognition, or perhaps the subject's possessing a telekinetic power which causes the coin to land with the guessed face up? Well,…no. In all likelihood, we've observed nothing more than good luck. The probability of 60 correct guesses out of 100 is about 2.8%, which means that if we do a large number of experiments flipping 100 coins, about every 35 experiments we can expect a score of 60 or better, purely due to chance.

6 0
3 years ago
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