3 years ago

Find the value of the y-intercept of the line whose equation is 5x - 3y = -12.

Mathematics

1 answer:

Advocard [28]3 years ago

8 0

Answer:

C. 4 is the right answer!

Step-by-step explanation:

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One thousand five hundred

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3 years ago

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3 years ago

The difference of three times a number and 4 is 32. Find the number

Angelina_Jolie [31]

Answer:

3x - 4 = 32

Step-by-step explanation:

We solve for x to find the number (knowing that x is the unknown number).

3x - 4 = 32

3x = 32 + 4

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x/3 = 36/3

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3 0

3 years ago

The real numbers $x$ and $y$ are such that \begin{align*} x + y &= 4, \\ x^2 + y^2 &= 22, \\ x^4 &= y^4 - 176 \sqrt{

tamaranim1 [39]

You get everything you need from factoring the last expression:

$x^4-y^4=-176\sqrt7$

The left side is a difference of squares, and we get another difference of squares upon factoring. We end up with

$x^4-y^4=(x^2-y^2)(x^2+y^2)=(x-y)(x+y)(x^2+y^2)$

Plug in everything you know and solve for $x-y$ :

$-176\sqrt7=(x-y)\cdot4\cdot22\implies x-y=\boxed{-2\sqrt7}$

4 0

3 years ago

Read 2 more answers

I WILL GIVE YOU ALL MY PIONTS PLUS BRAINLIESTTT PLEASEEEEEE

Alla [95]

Answer:

Step-by-step explanation:

Given the line of best fit

y = - 9.21x + 168.7

Substitute the weight of the pumpkin , that is x = 5, into the equation.

y = - 9.21(5) + 168.7

= - 46.05 + 168.7

= 122.65 ≈ 123 feet ( to the nearest foot )

4 0

4 years ago