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Dafna11 [192]
3 years ago
10

Brainiest To Best Answer! What PSAT Score do I need to get a 99 percentile?

Advanced Placement (AP)
1 answer:
kumpel [21]3 years ago
4 0
You need to get a total composite score that is more than 1450!

Hope this helps!
Can u plz mark me as brainliest? I really need it!
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In the answer space below, provide one of the two positive integers whose sum is 200 and whose product is a maximum.
Zina [86]
Yay for Calculus!
First, use the equation:
xy=S
This is x times y is equal to sum, or S.
Then, use the equation x + y = 200.
Then, solve for x or y. I will solve for y.
Doing so gives me the equation y = 200 - x
Next, use this value for y in the equation xy = S.
Give: x(200-x) = S
Simplify: 200x - x^2 = S.
Take the derivative: 200 - 2x = S'
Set it equal to 0 for critical numbers: 200 - 2x = 0
Solve: -2x = -200
Solve: 2x = 200
Sove: x = 100, which is one of your integers. The other is also 100.

3 0
3 years ago
CONNECTIONS BETWEEN PLACES<br> 14. What is diffusion?
LenaWriter [7]

Answer:

the process of spread of a feature or a trend from one place to another over time

Explanation:

diffusion is when innovations spread to new places while staying strong in their original locations.

3 0
3 years ago
2.5x + y = -2 ; 3x + 2y = 0
Mariana [72]
Looking at this, I think the easiest (personally) way to solve it would be using the Substitution method.
Meaning we have to rearrange ONE equation, to make ONE variable ( x or y) the subject.
(1)  2.5x + y = -2
(2)  3x +2y = 0

The first equation is the easiest to rearrange. Make Y the subject for (1).
Thus,
y = -2.5x - 2
Substitute this into equation (2).
∴ 3x + 2(-2.5x - 2) = 0
Expand and simplify:
3x - 5x - 4 = 0
∴ -2x - 4 = 0
Making x the subject:
-2x = 4
x = -2
From here, we need to substitute x=-2 into equation (1) or (2) to solve for the y-value. I would say the easiest way, would be to rearrange one, to make y the subject, which was what we did earlier.
Thus,
y = -2.5x - 2
y = ((-2.5(-2) -2)
y = 3
(X,Y) x = -2, y = 3
Answer: (-2,3)

I hope you followed through.
6 0
3 years ago
A hummingbird travels from plant to plant to feed itself. Which of the following ecosystem services does this hummingbird most l
Xelga [282]
I think it is 1 and 2

pls mark brainliest pls T H A N K S
7 0
3 years ago
Milton's involvement with the politics of the 1600s and did much to promote radical reform against the: free enterprise system t
olga55 [171]
The answer is Monarchy.

In 1600, John Milton promotes radical reform against the monarchy. Milton in and English poet and a civil servant to the Commonwealth of England as well. The Commonwealth is under Oliver Cromwell. His poems prose a passion for freedom and political turbulence during the time.
6 0
3 years ago
Read 2 more answers
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