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AnnZ [28]
3 years ago
14

Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st

andard deviation of 100. What proportion of students had a higher score than Amanda? Use your z table
Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0
The answer is 0.806 I believe. The whole process was far too much to type onto hear because I don't want you to be reading an essay if you're in a hurry.
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NEED ANSWERS!!!
Finger [1]

Answer:

Will earn $74.38 in interest or for the total $924.38 for the total amount accrued, principal plus interest

Step-by-step explanation:

I = p x rt

I = 850 x 0.035 x 2.5 = 74.38    (interest)

P' = p + I = 850 + 74.38 = 924.38

3 0
3 years ago
write the slope- intercept form of the equation of the line parallel to - x+5y=25, passing through the point (-5,-5). simplify
Olenka [21]
To find the equation of a line that is parallel to your original equation and goes through a certain point on a graph, here's what you need to know:
First you need to find the slope of your original equation.
To do that, you need to convert it to slope intercept form (y = mx+b).
Add the x over, and then divide everything by 5 to get the y by itself.
Here's what that would look like (without the small steps that I mentioned):
-x + 5y = 25
5y = x + 25
y = 1/5x + 5

That's the original equation rewritten in slope intercept form.
The m represents the slope, so this equation's slope is 1/5.

Because you are given a point, and now you have a slope, the best and easiest route is using point slope form.
I've seen different versions of the equation base but I prefer y - y(sub1) = m(x - x(sub1))
But since I can't use subscripts in this, I'll use the one with h and k. The h is the x value of the point, and the k is the y value.
(h,k)
Then just substitute the values in and solve for y.
y - k = m(x - h)
y + 5 = 1/5(x + 5)
y + 5 = 1/5x + 1
y = 1/5x - 4

Your final answer is
y = 1/5x - 4
You can double check by using a graph. If the slopes are the same, the lines should be parallel.

I hope that helps. If anything didn't make sense, feel free to ask me.
5 0
2 years ago
△ABC ≅ △BAD. Points C and D are placed on different sides of line AB. Make a guess about how lines AC and BD relate. Explain.
Hunter-Best [27]

Answer:

See below  

Step-by-step explanation:

It looks like

  • AB⟂CD
  • AB and CD bisect each other.

3 0
3 years ago
Find each value if f(x) = 2x - 1 and g(x) = 2 - x2.
bixtya [17]
Well i don’t know i just need me pints but sorry i’m so sorry
3 0
3 years ago
5 more then 3 times a number is 26 what is the number​
a_sh-v [17]
Let x equal a number
3x + 5 = 26
3x = 21
x = 7

the number is 7!
3 0
2 years ago
Read 2 more answers
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