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4vir4ik [10]
3 years ago
7

7 x (-3) x (-2)^2=? A.84 B.48 C.-84 D.-48

Mathematics
1 answer:
Lyrx [107]3 years ago
4 0
7x(-3)x(-2)^2 = -21x4 = -84
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The given values are discrete. Use the continuity correction and describe the region of the normal distribution that corresponds
Lerok [7]

Answer:

P_B(X\leq35)=P_N(X

Step-by-step explanation:

If we approximate the binomial distribution with a normal distribution, we have to apply a correction factor for the fact that we are now dealing with a continuous variable instead of a discrete one, as it was with the binomial distribution.

The probability of no more than 35 defective CDs: P(X<35)

In this case, as X=35 is not included in the interval, we start the interval from X=35-0.5=34.5.

P_B(X\leq35)=P_N(X

being Pb the probability under the binomial distribution and Pn the probability under the normal distribution.

The area for the normal distribution is the one below X=34 (or P(X<34)).

4 0
3 years ago
the price of a board game was reduced from $40 to $25. by what percentage was the price of the board game reduced?
Neporo4naja [7]
15% - 40. -25 = 1500 percent take out the zero because they have zero value and your left with 15 which is 15%
7 0
3 years ago
A crew must repave a road that is 3/8 miles long. They can repave 1/48 miles per hour. How long will it take the crew to repave
Anika [276]

Answer:

Step-by-step explanation:

3/8 miles long, 1/48 miles per hour

3/8 and 1/48 can have a common denominator, so you make 3/8 into 18/48 by multiplying both the numerator and denmoinator by 6.

18/48 miles long

1/48 per hour

divide: 18/48 divided by 1/48, which turns into 18/48 x 48/1 which equals 18

18 hours

4 0
3 years ago
A store is having a 15% sale on movies. A movie is on sale for 22.10, what is the original price of the movie?
Westkost [7]
15% sale so 22.11 its 85% of original price. To solve this problem we can use proportion
22.10----------85%
x----------------100%
crossmultiply
85x=22.1/*100
85x=2210      /:85
x=26$- its the answer
6 0
3 years ago
Which are vertical angles?<br> O AFE and BFD<br> O BFC and DFE<br> O AFE and CFD<br> O BFC and EFA
mel-nik [20]

the correct answer is a, because a vertical angle is made of 2 intercepting lines.

3 0
3 years ago
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