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shutvik [7]
3 years ago
15

Find the product. (y-3)(y-4)=

Mathematics
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

<u>y^2+12-7y</u>

Step-by-step explanation:

(y-3)(y-4)

I will split it up for us

y*y= <u>y^2</u>

-3*y= -3y. \

y*-4= -4y. / <u>-7y</u>

-3*-4= <u>12</u>

<u>y^2+12-7y</u>

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I need help fast<br>help me please​
Dovator [93]

Answer:

f(2) = -5

Step-by-step explanation:

f(2) means that x = 2.

We are trying to find the y-value when x = 2.

When x = 2, we see from the graph that our y-values is equal to -5.

Therefore, f(2) = -5

6 0
3 years ago
Solve by substitution
storchak [24]
4x - 2y = 14
y = 1/2x - 1

4x - 2(1/2x - 1) = 14
4x - x +2 = 14
3x + 2 - 2 = 14 - 2
3x = 12
3x / 3 = 12/3
x = 4


2x = y -10
2x + 7 = 2y

y - 10 + 7 = 2y
y -y -10 + 7 = 2y - y
-3 = y


8x - 1/3 y = 0
12x + 3 = y

8x - 1/3y = 0
8x -1/3( 12x + 3) = 0
8x - 4x - 3 = 0
4x -3 + 3 = 0 + 3
4x / 4 = 3/4
x = 3/4
3 0
3 years ago
A clock chimes every 20mins
Delicious77 [7]

Answer: 6 times

Step-by-step explanation:

it is a lowest common multiple question. So we list the multiples

20                   8

<u>40</u>                   16

60                   24

80                   32

                      <u>40</u>

40 is our lowest common multiple. Which means every 40 minutes they flash and chime together.

so if we add 40 minutes onto 08:00 we get 08:40 and if we add it again we get 09:20 and again we get 10:00 and again we get 10:40 and again we get 11:20 and again we get 12:00. We have to stop here as if we add 40 minutes again we will go over the given time of 12:30. If we count how many times it was added. this adds to 6. therefore the answer is 6.  

hope this helped.

8 0
3 years ago
Solve: k/5+3-3k=-6k
tia_tia [17]

\frac{k}{5} +3-3k=-6k

Multiply both sides of the equation by 5

k+15-15k=-30k

Move the expression to the right side and change the sign

k=-15-30k+15k

Combine Like terms

k=-15-15k

So I think the final answer would be k=-15-15k

7 0
4 years ago
What is the answer to (y+2y-6)+(2y-4)
Ksenya-84 [330]
You FOIL (First, Outer, Inner, Last)
If you FOIL, you should get 2y^2 - 4y + 4y^2 - 8y +12y -24
6 0
3 years ago
Read 2 more answers
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