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4 years ago

What is the value of x Find ∠ AEC. in the diagram? (HELP)A. 100B. 60C. 50D. 120

Mathematics

2 answers:

Ahat [919]4 years ago

7 0

Answer:

A, 100

Step-by-step explanation:

skad [1K]4 years ago

5 0

Using the diagram, we can see that there are three arcs, two with given values (200 and 60) and one with the value of x. Because we know that the arc angles must add up to 360, we can use a simple equation, x = 360 - 200 - 60, which is 100. But there is actually a simpler way to do this. See, the angle of BCD, is 50 degrees, and what you should have learned in your class is that the angle of the arc will be double that of the angle. So x is 100.

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See image attached below keeeeeeeeeeeeeeeeeeeed

emmasim [6.3K]

Answer:

.13%

68.26%

2.28%

47.72%

49.87%

34.13%

Step-by-step explanation:

1.) standardize by subtracting the mean and dividng by the standard deviation

(625-1000)/125= -3

go to a ztable to get .0013 or (1-.9987)

this is equal to .13%

2.)

875<x<1125

standardize both seperately and subtract them

(875-1000)/125= -1 whose probability is .1587 (or 1-.8413)

(1125-1000)/125= 1 whose probability is .8413

.8413-.1587= 68.26%

3.)

Find the probability that someone paid less than 1250 and take its compliment

(1250-1000)/125= 2 which has a probability of .9772

take its compliment (1-.9772)= .0228= 2.28%

4.)

Same process as question 2

(750-1000)/125= -2 which has a probability of (1-.9772) = .0228

(1000-1000)/125= 0 which has a probability of .5

.5-.0228= .4772= 47.72%

5.) same deal as the previous question

(625-1000)/125= -3 which has a probability of (1-.9987)= .0013

(1000-1000)/125= 0 which has a probability of .5

.5-.0013= .4987= 49.87%

6.)same deal the previous question

(875-1000)/125= -1 which has a probability of (1-.8413)=.1587

(1000-1000)/125= 0 which has a probability of .5

.5-.1587= .3413= 34.13%

4 0

3 years ago

What is the difference between the number of solutions for a two-step equation and for a two-step inequality

Sophie [7]

Answer:

A two-step equation is something like:

A*X + B = C

In this case, like in a linear equation, we have only one solution that can be found as:

A*X = C - B

X = (C - B)/A

In the case of a two-step inequality, we have something like:

A*X + B > C

Solving this we get;

A*X > C - B

X > (C - B)/A

In this case, any value of X that is larger than (C - B)/A is a solution, so in this case, we have infinite solutions.

That is the difference between the number of solutions for each case, in a two-step equation we have only one, while in the case of the inequality we have infinite.

7 0

3 years ago

How are the values of the 3's in 33,000 related

Alenkinab [10]

In which place? Of the value one tens hunderd thousnd

7 0

3 years ago

Factor the expression completely

Phantasy [73]

Factor : 8y - 36

Go through all of the answer choices & see which one is correct.

a) -4 (2y + 9)

You don't even have to fully simplify this, just by looking at the -4, you already know that this is incorrect because you need to have a positive 8. So, A is incorrect.

b) 8 (y - 4)

Simplify.

8y - 32

Incorrect because it is not equal to the original equation.

c) 2 (4y - 18)

Simplify.

8y - 36

Correct answer because it is equal to the original equation.

d) 4(2y - 9)

Simplify.

8y - 36

D is also correct.

So, your answer is : (C) and (D) are your answers.

~Hope I helped!~

5 0

3 years ago

Read 2 more answers

In a really exciting part of the book, the student read 18 pages in one sitting. For how many minutes did she read

gogolik [260]

Are there any options?

4 0

3 years ago