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2 years ago

Which number line shows the solution set for StartAbsoluteValue 2 p minus 4 EndAbsoluteValue greater-than-or-equal-to 6?

Mathematics

1 answer:

maks197457 [2]2 years ago

8 0

Answer:

can u add a picture?

Step-by-step explanation:

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What is a abtuse angle

sp2606 [1]

Answer:An obtuse angle is any angle larger than 90 degrees

Step-by-step explanation:

4 0

3 years ago

(Urgent) Worth 10 points 7.3

kodGreya [7K]

Answer:

m∡CBD = 135°

Step-by-step explanation:

m + 3m = 180

4m = 180

m = 180/4

m = 45

angle CBD is 3(45) = 135 degrees

4 0

3 years ago

Calculate the slope between the coordinates (-2,3) and (2,-1) using the slope formula.

matrenka [14]

Answer:

slope = -1

Step-by-step explanation:

First, you need to know the slope formula: y2 - y1

x2 - x1

Now recognize the first point (-2,3) as (x1,y1) and the second point (2,-1) as (x2,y2)

Now that you have done that, plug in the numbers into the slope equation.

Which should look like this: -1 - 3

2 - -2

Now that your equation looks like this, recognize the denominator, we should know that a negative plus a negative equals a positive. So instead of subtracting the denominator of the equation, we are going to add the two numbers together, because x1 is negative. Now solve, you should get the answer -1.

-1 - 3 -4 = -1

2 + 2 4

Hope this was helpful!

7 0

2 years ago

ACT mathematics score for a particular year are normally distributed with a mean of 27 and a standard deviation of 2 points

oksano4ka [1.4K]

Answer:

A) the probability that a randomly selected score is greater than 29 points is 0.1587

B) The percentage of students scores are between 31 and 23 is 95.44%

C) A student who scores 31 is in the 97.72% percentile

Step-by-step explanation:

ACT mathematics score for a particular year are normally distributed with a mean of 27 and a standard deviation of 2 points.

Part A: What is the probability that a randomly selected score is greater than 29 points?

Part B: What percentage of students scores are between 31 and 23?

Part C: A student who scores 31 is in the ______ percentile.

A) Given that:

Mean (m) = 27 and standard deviation (s) = 2 points

Since the ACT mathematics score is normally distributed, we can use z score. To calculate Z score we use the equation:

$Z=\frac{x-m}{s}$

substituting values:

$Z=\frac{x-m}{s}==\frac{29-27}{2}=1\\Z=1\\$

P(X > 29) = P(Z > 1) = 1 - P(Z<1)

Using Z tables

P(X > 29) = P(Z > 1) = 1 - P(Z<1) = 1 - 0.8413 = 0.1587 = 15.87%

P(X > 29) = 0.1587

the probability that a randomly selected score is greater than 29 points is 0.1587

B) For score of 31

$Z=\frac{x-m}{s}==\frac{31-27}{2}=2\\Z=2\\$

For score of 23

$Z=\frac{x-m}{s}==\frac{23-27}{2}=-2\\Z=-2\\$

P(23 < X < 31) = P(-2 < Z < 2) = P(Z < 2) - P(Z < -2) = 0.9772 - 0.0228 = 0.9544

P(23 < X < 31) = 0.9544 = 95.44%

The percentage of students scores are between 31 and 23 is 95.44%

C) For score of 31

$Z=\frac{x-m}{s}==\frac{31-27}{2}=2\\Z=2\\$

P(X < 31) = P(Z < 2) = 0.9772 = 97.72%

A student who scores 31 is in the 97.72% percentile

3 0

3 years ago

Can I get help with this

stich3 [128]

Graph 1: Yes, Graph 2: Yes, Graph 3: No, Graph 4: No, Graph 5: No, Graph 6: Not entirely sure but I would say No.

5 0

2 years ago