ASAP pls help me with 2 and 3 with work shown (cause my math teacher says it's required..sigh) PLS HELP ME THANK YOUUU

Elan Coil [88]

The probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Given that based on a poll, 60% of adults believe in reincarnation, to determine, assuming that 5 adults are randomly selected, what is the probability that exactly 4 of the selected adults believe in reincarnation, and what is the probability that all of the selected adults believe in reincarnation, the following calculations must be performed:

0.6 x 0.6 x 0.6 x 0.6 x 0.4 = X
0.36 x 0.36 x 0.4 = X
0.1296 x 0.4 = X
0.05184 = X
0.05184 x 100 = 5.184

0.6 x 0.6 x 0.6 x 0.6 x 0.6 = X
0.36 x 0.36 x 0.6 = X
0.1296 x 0.6 = X
0.07776 = X
0.07776 x 100 = 7.776

Therefore, the probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

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5 0

2 years ago

a box of powdered laundry detergent contains 5.2 ounces of detergent. It takes 0.7 ounce of detergent to clean a load of laundry

ollegr [7]

So a box has 5.2 oz
it takes 0.7 oz to clean one load

with 3 boxes (3 times 5.2) how many can be cleaned

3 times 5.2=15.6
15.6/0.7=156/7 how many loads=22 and 2/7 =22.285 loads or less than 22 loads (since you can't clean a decimal of a load)

22 Loads is the answer

8 0

3 years ago

John enlarged one side of his square flower bed by 8 ft to make it into a rectangle. The area of the new flower bed is 3 times t

Mila [183]

If the side of the square flower bed was enlarged by 8 feet and the area of the new flower bed was 3 times the area of the old one then the length of the side of the old flower bed was 4 feet.

Given that the side of square flower bed was enlarged by 8 feet and the area of the new flower bed was 4 feet.

We are required to find the length of the side of the old flower bed.

We know that the area of rectangle is equal to the product of length and breadth of that rectangle.

let x represents the side of the square old flower bed.

Dimensions of new rectangular flower bed:

Width=x

Length =x+8

Area=3* $x^{2}$

=3 $x^{2}$

Thus:

x(x+8)=3 $x^{2}$

$x^{2}$ +8x=3 $x^{2}$

2 $x^{2}$ =8x

2x=8

x=4

Hence if the side of the square flower bed was enlarged by 8 feet and the area of the new flower bed was 3 times the area of the old one then the length of the side of the old flower bed was 4 feet.

Question is incomplete as the next part of the question is as under:

Calculate the length of the side of the old flower bed?

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7 0

2 years ago

A 15-inch candle is lit and burns at a constant rate of 1.6 inches per hour.

Naily [24]

Answer:

c = 15: The height of candle is 15 inches when it is not lit.

m = -1.6: The height of candle decreases 1.6 inches for every hour it is lit.

Step-by-step explanation:

We are given the following in the question:

Height of candle = 15 inches

$f (t) = 15 - 1.6 t$

This function gives the length of the candle in inches left after it was burn for t hours.

Comparing the given equation to a linear equation, we have:

$y = mx + c$

where m is the slope and c is the y-intercept.

Comparing we, get

m = -1.6 and c = 15

Interpretation:

c = 15 mean the y-intercept is 15 that is he value of function when t = 0, thus, the height of candle is 15 inches when it is not lit.

m = -1.6 is the rate of change of the function when t increases by 1 unit that is the height of candle decreases 1.6 inches for every hour it is lit.

3 0

3 years ago

Faith is purchasing coffee beans for her shop.

LUCKY_DIMON [66]

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8 0

2 years ago

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