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Jlenok [28]
3 years ago
12

There are two calculus classes at your school. Both classes have a class average of 75.5. The first class has a standard deviati

on of 10.2 and the second has a standard deviation of 22.5. How do the classes compare?
Question 3 options:

They are about the same.


The second class has higher grades than the first.


The first class' scores are closer together and the second's score are more spread out.


The second class' scores are closer together and the first's score are more spread out.
Mathematics
1 answer:
romanna [79]3 years ago
6 0

Answer:

idk sorry

Step-by-step explanation:

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In the diagram, point O is the center of the circle and AC¯¯¯¯¯ and BD¯¯¯¯¯ intersect at point E. If m∠AOB = 90° and
Romashka [77]
<span>m∠CED = </span><span>1/2(m∠AOB + </span><span><span>m∠COD)</span> = 1/2(90° + 16°) = 1/2(106°) = 53°</span>

7 0
3 years ago
4(2x - 2) + 2 = 4(x - 2)
andreev551 [17]

Answer:

X=-1/2

Step-by-step explanation:

Hope this helps. Plz give brainliest.

8 0
3 years ago
Read 2 more answers
Please Hurry!!<br> Consider the two-way table below.<br> Find P(BIC).
Colt1911 [192]

Answer: the answer is B, or P(B|C)=9/24=0.38

Step-by-step explanation:

If you look at the table, you can see that 9 is where BC is. So, 9 is the numerator. The denominator is 24 because that is the total number.

Also, I got this answer correct on Edge

6 0
3 years ago
Read 2 more answers
Please help. Thank you :)
mixer [17]

Okay, first let's look at what they give us!


The measure of angle 2 is 3x + 1


Measure of angle 3 is 2x + 4


And they give us that one angle is right which means it is 90°


Now if we use what we know of triangles, we know that all the angles in a triangle add up to equal 180 which means if we add angle 2, angle 3, and the right angle together we should get 180. Let's write an equation for it:


3x + 1 + 2x + 4 + 90 = 180


First we will add together liked terms!


3x + 2x = 5x


1 + 4 + 90 = 95


This gets us:


5x + 95 = 180


Second, let's get rid of that 95 by subtracting it from both sides, after doing this it should leave us with:


5x = 85


Third we need to get the x by itself and we can do it by dividing both sides by 5 to get:


x = 17


Now the question asks to find the measure of angle 2, given that angle 2 is 3x + 1 all there is left to do is to plug in 17 for x!

3(17) + 1


51 + 2 to get us 52!


Answer: 52

3 0
3 years ago
Combine the like terms to create an equivalent expression:<br>4z-(-3z)​
Verdich [7]

the answer is 12z²

Step-by-step explanation:

u just multiply the 4z-(-3z).

7 0
2 years ago
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