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3 years ago

How to calculate angle which is 25 degree?

Mathematics

1 answer:

jekas [21]3 years ago

7 0

For calculate a angle we use Protactor .
First place the protractor at 0 and starting point of angle .
Now count the angle where it meets .

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Based on a survey, assume that 43% of consumers are comfortable having drones deliver their purchases. Suppose we want to find

svlad2 [7]

Answer:

The probability of getting two consumers comfortable with drones is 0.3424.

Step-by-step explanation:

The probability that a consumer is comfortable having drones deliver their purchases is, p = 0.43.

A random sample of n = 5 consumers are selected, and exactly x = 2 of them are comfortable with the drones.

To compute the probability of getting two consumers comfortable with drones followed by three consumers not comfortable, we will use the Binomial distribution instead of the multiplication rule to find the probability.

This is because in this case we need to compute the number of possible combinations of two consumers who are comfortable with drones.

So, X = number of consumers comfortable with drones, follows a Binomial distribution with parameters n = 5 and p = 0.43.

Compute the probability of getting two consumers comfortable with drones as follows:

$P(X=x)={5\choose x}\ 0.43^{x}\ (1-0.43)^{5-x};\ x=0,1,2,3...$

$P(X=2)={5\choose 2}\ 0.43^{2}\ (1-0.43)^{5-2}$

$=10\times 0.1849\times 0.185193\\=0.342421857\\\approx 0.3424$

Thus, the probability of getting two consumers comfortable with drones is 0.3424.

4 0

3 years ago

Instructions: Find the missing length indicated.

ikadub [295]

Answer:

X = 25

Step-by-step explanation:

Set up as a ratio:

Simplify ratio, multiply by 5, divide by 12

$\frac{60}{144} = \frac{x}{60} \\\frac{5}{12}=\frac{x}{60} \\ 300 = 12x\\12x=300\\x=25$

4 0

3 years ago

A jet travels 584 miles in 4 hours. At this rate how far could the jet fly in 13 hours?what is the rate of speed of the jet

Ostrovityanka [42]

So if you do 584/4 you get 146 which is the miles per hour, which is the rate of the jet. Also, the jet could fly 1,898 miles in 13 hours.

5 0

3 years ago

There are 30 students in an art class. Fourteen of the students are girls.

DedPeter [7]

Answer: B

Step-by-step explanation: To get the boys part of the ratio you will have to subtract 30 students and 14 students that are girls because all together there are 30 students and since we only know that 14 of them are girls that leaves the rest of the students boys. 30 - 14 = 16 so now we know how many boys there are. 16:14 can be reduced by 2 and that equals to 8:7.

Hope this helps!

8 0

3 years ago

arnita swims in a pool that is 50 meters long. everyday arnita swims 10 lengths of the the pool. After 5 days, how many kilomete

Oliga [24]

Answer:

After 5 days Arnita has swum 2.5 kilometers.

Step-by-step explanation:

50 x 10 = 500 lengths of the pool per day

500 x 5 = 2,500 meters

2,500 meters = 2.5 kilometers

4 0

3 years ago