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katrin2010 [14]
3 years ago
13

Help me with these questions please!!!

Mathematics
1 answer:
kumpel [21]3 years ago
3 0

Answer: Here are all of the answers to the best of my ability :)

1: Solve the following equation for “y”:

3y - 4x = 15

Steps:

1. Add 4x to both sides. 3y = 4x + 15

2. Divide both sides by 3. Y= 4/3x + 5

Final answer: y= 4/3x + 5

————————————————————-

2. Write an equation in slope intercept form for a line that passes through the y axis at 5 and has a slope of -3.

Slope intercept form: y = mx + b

B= y intercept

Mx= slope

Equation: y = 3x + 5

———————————————————————————————————

3. Is (-2, 6) a solution of -3y + 5y = 4x?

Steps:

1. -3(6) + 5(6) = 4x

2. -18y + 30y = 4x

3. 12 = 4x

4. Rewrite the equation: 4x = 12

5. Divide by 4 on both sides

6. x = 3

Yes, this is a solution to -3y + 5y = 4x

————————————————————————-

4. Write the following equation in slope intercept form: x + 8y = 30

1. Add negative 8y to both sides. X = -8y + 30

Answer: x= -8y + 30

——————————————————————————-

5. Graph this equation: 2x + 5y = 20

That’s all I could find. Sorry if I made I mistake. Have a good day!

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Maksim231197 [3]

Answer:

0 and 2

Step-by-step explanation:

f(x) = -x^2e^{-x}+2xe^{-x}

To find zeros set f(x)=0  and solve for x

0 = -x^2e^{-x}+2xe^{-x}

0 = -e^{-x}(x^2-2x)

now factor out x

0 = -xe^{-x}(x-2)

set each factor =0 and solve for x

x=0

-e^{-x}=0 no solution for x

x-2=0, x=2

zeros of f  are 0 and 2

7 0
3 years ago
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Answer:

C

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3 years ago
If parallelogram RSTV has diagonals then RSTV must also be a _______. square and a rectangle rhombus and a rectangle rhombus rec
andrew11 [14]
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5 0
3 years ago
Help please!
larisa86 [58]

Answer:

The point at (-7, -5) = a

The point at (9, 3) = b

The point at (-3, 7) = c

The "a" point of the triangle is 12 units away from the center point.

So, 12 x 1/4

=> 12/4

=> 3

So, the "a" point of the dilated figure is  3 units left from the center.

=> So, the dilated "a" point is at (2, -5)

The "b" point is 8/4 (= rise/run = y-axis / x-axis) from the center point.

=> 8/4 = 2

So, the "b" point of the dilated figure is 1 unit right and 2 units up from the center point.

=> So, the dilated "b" point is at (6, -3)

The "c" point is 12/8 units away from the center point.

=> 12/8 x 1/4

=> 3/2

So, the "c" point of the dilated figure is 3 units up and 2 units left from the center point.

=> So, the dilated "c" point is at (3, -2)

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3 years ago
A 2-gallon bottle of bleach costs $14.24. What is the price per pint?
aleksley [76]

Answer:

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If you round it would be: $1.12

7 0
3 years ago
Read 2 more answers
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