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Triss [41]
2 years ago
6

Hello :) so I'm horrible at math, but since finals are coming up I want to calculate what my final grade will be if I were to fa

il a chem test worth 50 points. Right now my grade is an A- (93.32%). Also what grade would I have to get on the final in order to keep an A- (at least 90%)?
Mathematics
2 answers:
Nutka1998 [239]2 years ago
7 0

Answer:

It depends on your total points and how much you already have

Step-by-step explanation:

So you gotta add up your total possible points right now and add 50 to it.

Then divide your current amount of points by the total possible points + 50.

Example. Suppose you had 93 points out of 100 right now.

Then you add 50 to 100 and you get 150.

After you divide 93 by 150, which equals 0.62.

Also, depends on whether exams and homework are weighted differently in your grading system.

Natalka [10]2 years ago
6 0

Answer:91

Step-by-step explanation:

If the best grade is 100,91 is it.

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Question 4 plz show ALL STEPS
scoray [572]

Part (a)

Locate x = -1 on the x axis. Draw a vertical line through this x value until you reach the f(x) curve. Then move horizontally until you reach the y axis. You should arrive at y = 4. Check out the diagram below to see what I mean.

Since f(-1) = 4, this means we can then say

g( f(-1) ) = g( 4 ) = 4

To evaluate g(4), we'll follow the same idea as what we did with f(x). However, we'll start at x = 4 and draw a vertical line until we reach the g(x) curve this time.

<h3>Answer:  4</h3>

==========================================================

Part (b)

We use the same idea as part (a)

f(-2) = 5

g( f(-2) ) = g(5) = 6

<h3>Answer:  6</h3>

==========================================================

Part (c)

Same idea as the last two parts. We start on the inside and work toward the outside. Keep in mind that g(x) is now the inner function for this part and for part (d) as well.

g(1) = -2

f( g(1) ) = f(-2) = 5

<h3>Answer:   5</h3>

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Part (d)

Same idea as part (c)

g(2) = 0

f( g(2) ) = f( 0 ) = 3

<h3>Answer:  3</h3>

6 0
3 years ago
Find x step by step (10 points)
AleksandrR [38]

Answer:

\sqrt{(n-m)(n+m)} & -\sqrt{(n-m)(n+m)}

Step-by-step explanation:

1) Subtract m^{2} from both sides. This should leave you with x^{2}=n^{2}-m^{2}.

2) Square root both sides. This should leave you with x=\sqrt{n^2-m^2} & x=-\sqrt{n^2-m^2}.

<em>You can stop here if this is what the problem is asking for. However, it is not fully simplified.</em>

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3) Factor the equation. This should leave you with \sqrt{(n-m)(n+m)} & -\sqrt{(n-m)(n+m)}.

4 0
2 years ago
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zavuch27 [327]

Answer:

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Step-by-step explanation:

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2 years ago
What is the x value ?????
Lady bird [3.3K]
I got x=2.64 or x=1.32 i don't know if i done it right 
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3 years ago
What is 2 2/5×2 7/9 in simplest mixed number form?
Scorpion4ik [409]

Answer:

6 2/3

Step-by-step explanation:

2 2/5 * 2 7/9

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