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konstantin123 [22]
3 years ago
14

help me please !!!!!!!!!

Mathematics
1 answer:
azamat3 years ago
3 0

Answer:

A

Step-by-step explanation:

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Sara is considering charging her electric car. If she goes to the charging station on the following map, she will have to drive
Alexus [3.1K]

Answer:

5 km

Step-by-step explanation:

Use the distance formula.

5 0
3 years ago
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Ask Your Teacher Consider a binomial random variable with n = 5 and p = 0.8. Let x be the number of successes in the sample. Eva
Readme [11.4K]

Answer:

0.942 is the required probability.  

Step-by-step explanation:

We are given the following in the question:

x is a binomial random variable with n = 5 and p = 0.8.

Then,

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

where n is the total number of observations, x is the number of success, p is the probability of success.

We have to evaluate:

P(x \geq 3) = P(x = 3) + P(x = 4) +P(x=5)\\\\= \binom{5}{3}(0.8)^3(1-0.8)^2 +\binom{5}{4}(0.8)^4(1-0.8)^1 +\binom{5}{5}(0.8)^5(1-0.8)^0\\\\= 0.2048 +0.4096+0.3276=0.942

0.942 is the required probability.

4 0
3 years ago
Please help me *20 points*
Salsk061 [2.6K]

Answer:

36

Step-by-step explanation:

Frequency of less than 4:

6 + 4 + 8 = 18

Probability:

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3 years ago
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1. Write numbers from standard form to Scientific notation for the following: The diameter of human DNA is about 0.000000002
zheka24 [161]
Okay, so in order to find scientific notation you're going to either move the decimal place to the left or right in order to make your answer a number between 1 and 9. In this case you're going to need to move it right, because you need to make it bigger in order to make it a number between 1 and 9. You'll have to move the decimal 9 places to the right, which will give you the number 2. Since you are making the number bigger, your exponent will be negative. That happens anytime you move the decimal place to the right. To the left, your exponent will be positive. Therefore the answer to 1 is:
2.00X10^-9

As for number two, you must first start by using the area formula of a triangle. That equation would be
A= 1/2bh or A=bh/2 (b=base and h=height)
By plugging that in you get an area of 83,200 miles. As mentioned before, when finding scientific notation, you want a number between 1 and 9. To do so, we have to make this number smaller by moving the decimal 4 places to the left (making the exponent positive) and resulting in an answer of:
8.32X10^4 miles
4 0
3 years ago
I wanna know: [3,5]={3,4,5}? Why?
Agata [3.3K]

Answer:

Yes if [3,5] is a set of integers then it contains elements 3,4,5

As Closed bracket denotes that extreme points are also included and 4 is mid element in between 3 and 5

6 0
3 years ago
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