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3 years ago

Please help iv added a pic of the work sheet. I have to get this done by tomorrow

Mathematics

1 answer:

garri49 [273]3 years ago

5 0

You do this by moving all terms without y to the right hand side, and then divide the whole lot to keep a clean y= on the left hand side.

Moving to the other side is done by subtracting (or adding) a term from both sides. Effectively this looks like you're moving the term and flipping the sign.

So 2y + 18 = 4x changes into 2y +18 -18 = 4x -18 so 2y = 4x - 18. If you forget about the middle step, it looks like the +18 jumped to the other side and changed sign. That's all.

Second step is to change the 2y into y. You do that by dividing everything by 2. So 2y=4x-18 becomes y=2x-9

1. y=2x-9
2. y=3/2x - 6
3. y=4x+18
4. y=2x-12

5. y=-4x+18
6. y=2/3x+4
7. y=-1/4x-18/4
8. y=1/4x-18/4

9. y=1/4x+18/4
10. y=-1/4x+18/4
11. y=-3/2x+6
12. y=3/2x+6

13. y=-3/2x-6
14. y=-2/3x-4
15. y=2/3x+2/3
16. y=18-4x

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30 Points Use Scientific Notation Put Greater Than Less Than Or Equal To In Each Box!

riadik2000 [5.3K]

Answer:

5. >

6. >

7. <

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9. =

10. >

11. >

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Step-by-step explanation:

5. 9.33 x 10³ = 9330

9330 > 933

6. 2.88 x 10⁻⁵ = 0.0000288

2.9 x 10⁻⁶ = 0.0000029

0.0000288 > 0.0000029

7. 0.33 x 10⁻⁷ = 0.000000033

3.7 x 10⁻⁶ = 0.0000037

0.000000033 < 0.0000037

8. 4.9 x 10⁴ = 49000

4.79 x 10⁵ = 479000

49000 < 479000

9. 3.0 x 10⁶ = 3000000

30 x 10⁵ = 3000000

3000000 = 3000000

10. 2.2 x 10⁻³ = 0.0022

1.7 x 10⁻³ = 0.0017

0.0022 > 0.0017

11. 2.1 x 10⁷ = 21000000

2 million = 2000000

21000000 > 2000000

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520000000000 > 87000000000

3 0

3 years ago

I need help answering this question!

sesenic [268]

9514 1404 393

Answer:

(x, y) = (-2, -4)

Step-by-step explanation:

A graphing calculator can provide excellent help with graphing. Apps and websites are available, if your calculator doesn't do that.

The two lines intersect at the solution point: (x, y) = (-2, -4).

6 0

2 years ago

What is the area of the trapezoid? Enter your answer in the box

creativ13 [48]

144 squared inches. Basically all you have to do is find the the area of a triangle and the square since this is a composite figure and you add all of the possible are of each shape. (Area of triangle = Base • Height • 1/2) (Area of square = Length times width)

5 0

3 years ago

find the angle between the vectors. (first find the exact expression and then approximate to the nearest degree. ) a=[-8,6]. B=[

just olya [345]

Answer:

49°

Step-by-step explanation:

Given vectors:

a = [-8, 6]

B = [√7, 3]

θ = ?

To find the angle between the two vectors, we will be using the formula,

a.B = |a||B|cosθ

For simplicity, it is good to first calculate the dot product, and the magnitudes. Then we will substitute the values of the dot product, and the magnitudes of the vectors to solve for the angle.

Calculating the dot product

a.B = (-8, 6) . (√7, 3)

= (-8 × √7) + (6 × 3)

= -8√7 + 18

= 18 - 8√7

= 10√7

Calculating the magnitude the vectors

1. The magnitude of vector (-8, 6)

$|a| = \sqrt{(-8)^{2} + 6^{2}}$