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tigry1 [53]
3 years ago
7

please help I'm actually crying! Find A and B if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2

x - 7y = 3.
Mathematics
1 answer:
Papessa [141]3 years ago
3 0

i have less sympathy for ur crying when you copy and paste this question and ask it again three times. why dont you just ask it once? everyone answers anyway

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Need help with a math question
ludmilkaskok [199]

Answer:

There are 10 possible ways the student can schedule the three classes

Step-by-step explanation:

The college student is choosing 3 classes to take during the first, second, and third semester from 5 electives.

Therefore, the student is choosing 3 items from a total of 5 and the order is not of key concern here. This is thus a combination problem;

5C3 = 10

read as 5 choose 3

The above mathematical operation can be performed using any modern calculator.

7 0
3 years ago
Jack is 4 times as old as Lacy. 4 years ago the sum of their ages was 52. How old are they now
Papessa [141]

Answer:

Jack = 48 years old ,  Lac = 12 years old

Step-by-step explanation:

Jack = 4Lacy

(Jack - 4) + (Lacy - 4) = 52

Now, substitute.

4Lacy - 4 + Lacy - 4 = 52

5Lacy = 60

Lacy = 60/5 = 12

Jack =4Lacy

       =4(12)

        =48

7 0
4 years ago
I need help on this will give brainlist
Mazyrski [523]
The answer is A because the point of reflection is located on -1 while it reflects horizontally
5 0
3 years ago
there are 15 cards , numbered 1 through 15 , if you pick a card what is the probability that you choose an odd number or a two
Paul [167]
I think the probability of picking an odd number is 7/15
3 0
3 years ago
Read 2 more answers
Triangle sum theorem
sleet_krkn [62]

Answer:

e= 60

Step-by-step explanation:

we know that triangles add up to 180

so 35+24+2e+1= 180

simplify: 60+2e= 180

subtract 60 on both sides: 2e= 120

divide both sides by 2: e=60

3 0
3 years ago
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