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2 years ago

HelppppWhat is 25% of 30710|212172

Mathematics

2 answers:

Marrrta [24]2 years ago

8 0

Answer:

76.75

Step-by-step explanation:

do 25% of 307

Hope this helps u :D

inna [77]2 years ago

5 0

Answer:

76.75 is 25% of 307

Step-by-step explanation:

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Last week, Jen started a new job at the mall. She worked 36 hours over 4 workdays of equal length. She makes $8 an hour. How muc

Anastaziya [24]

Answer:

1652

Step-by-step explanation:

because 36x4=144 and 144x8=1652

3 0

2 years ago

Find the area of the triangle.

Thepotemich [5.8K]

Answer:

$270 \:m^2$

Step-by-step explanation:

The area of the triangle.

$bh\frac{1}{2}$

$b \times h \times \frac{1}{2}$

$20 \times 27 \times \frac{1}{2}$

$540 \times 1/2$

$=270$

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3 years ago

(Re-Asking This Question, NO scam answers or LINKS. I will report.)

AlexFokin [52]

Answer:

Yes

Step-by-step explanation:

This is because the first point in the parenthesis is x and the second is y. If we know this, we can substitute -5 in for x and -6 in for y to get that -15 - (-12) > -4. When you subtract by a negative number, it is the same as adding by that number, so -15 - (-12) = -15 + 12, so we get that -3 > -4. This is true because when you have negative numbers, the lesser negative number is the greater one (Ex. -5 > -6).

3 0

3 years ago

A sequence of Bernoulli trials consists of choosing components at random from a batch of components. A selected component is eit

Drupady [299]

Answer:

a) 0.0287 = 2.87% probability that three non-defective components in a batch of seven components.

b) 0.0336 = 3.36% probability that 8 non-defective components are drawn before the first defective component is chosen.

Step-by-step explanation:

A sequence of Bernoulli trials composes the binomial distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

The probability that a selected component is non-defective is 0.8

This means that $p = 0.8$

a) Three non-defective components in a batch of seven components.

This is P(X = 3) when n = 7. So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 3) = C_{7,3}.(0.8)^{3}.(0.2)^{4} = 0.0287$

0.0287 = 2.87% probability that three non-defective components in a batch of seven components.

b) 8 non-defective components are drawn before the first defective component is chosen.

Now the order is important, so the we just multiply the probabilities.

8 non-defective, each with probability 0.8, and then a defective, with probability 0.2. So

$p = (0.8)^8*0.2 = 0.0336$

0.0336 = 3.36% probability that 8 non-defective components are drawn before the first defective component is chosen.

4 0

2 years ago

A ball is thrown from a height of 70 meters with an initial downward velocity of 10/ms. The ball's height h (in meters) after t

dmitriy555 [2]

Answer:h=−5t2−10t+70

Step-by-step explanation:

<!>BRAINLIEST APPERICATED<!> :D

3 0

3 years ago

HelppppWhat is 25% of 30710|212172​

HelppppWhat is 25% of 30710|212172