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3 years ago

Complete the equation describing how x and y are related.

Mathematics

1 answer:

shusha [124]3 years ago

7 0

Answer:

y=-5.5x+-5

Step-by-step explanation:

the slope is -5.5

the y-intercept is what the y-axis is when the x-axis is zero

therefore the y-intercept is -5

hope this helps

have a nice day!!

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Which equation demonstrates the multiplicative identity property? (negative 3 + 5 i) + 0 = negative 3 + 5 i (negative 3 + 5 i )

VMariaS [17]

Answer:

(-3 + 5 i) (1) = (-3 + 5 i)

Step-by-step explanation:

The multiplicative identity property says you can multiply anything by 1 without changing its value. That is demonstrated by the equation above.

5 0

3 years ago

Read 2 more answers

Which is the best estimate for the diagonal of a rectangle with a width of x and a length of 2x, if x is 1.33?

german

The best estimate for the diagonal of the rectangle is 3 ⇒ B

Step-by-step explanation:

In a rectangle:

The length and the width are perpendicular
The length of its diagonal = $\sqrt{(length)^{2}+(width)^{2}}$ (the diagonal is the hypotenuse of a right triangle whose legs are the length and the width of the rectangle)

∵ The width of a rectangle = x

∵ The length of the rectangle = 2x

∵ The diagonal = $\sqrt{(length)^{2}+(width)^{2}}$

- Substitute the length by 2x and the width by x

∴ The diagonal = $\sqrt{(2x)^{2}+(x)^{2}}$

∴ The diagonal = $\sqrt{4x^{2}+x^{2}}$

∴ The diagonal = $\sqrt{5x^{2}}$

∵ x = 1.33

- Substitute the value of x by 1.33 to find the diagonal

∴ The diagonal = $\sqrt{5(1.33)^{2}}$

∴ The diagonal = 2.973

∴ The diagonal ≅ 3

The best estimate for the diagonal of the rectangle is 3

Learn more:

You can learn more about the rectangles in brainly.com/question/13084321

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6 0

3 years ago

Mumz [18]

Answer:

Step-by-step explanation:

all squares are similar

8 0

3 years ago

The first three terms of a geometric sequence are as follows.

Rom4ik [11]

-7,14,-28,56,-112

an = a1(r)^n-1

a4 = -7(-2)^4-1

a4 = -7(-2)³

a4 = -7(-8)

a4 = 56

an = a1(r)^n-1

a5 = -7(-2)^5-1

a5 = -7(-2)⁴

a5 = -7(16)

a5 = -112

<h2>#CarryOnLearning</h2>

4 0

3 years ago

What are the methods of substitution?

anyanavicka [17]

Answer:

-One Equation: is set equal to a variable

Example:

y = 2x + 1

x + 3y = -12

You already have y, plug it back into x + 3y = -12

x + 3(2x + 1) = -12

x + 6x + 3 = -12

7x + 3 = -12

(Subtract 3 from each side)

7x = -15

(Divide by 7)

x = - 2.14

-No Equation: is set equal to a variable

Example:

2x + y = 10

4× + 2y = -3

Subtract 2x from each side of 2x + y = 10, you should get y= -2x + 10. Now that you have found y, substitute y into 4x+ 2y = -3.

4x + 2(-2x + 10) = -3

4x + -4x + 20 = -3

(Subtract 20 from each side)

4x + -4x = -23

(Add 4x and -4x)

0 = -23

No Solution

-Both Equations: are set equal to a variable

Example:

y = x + 5

y = -x + 3

(you already have y so plug it into the other equation to solve for x)

-x + 3 = x + 5

(Add -x on both sides)

3 = 2x + 5

(subtract 5 from both sides)

-2 = 2x

(Divide by 2 on each side)

x = -1

I hope this helped!

8 0

3 years ago