4 years ago

Solve the system of equations

Mathematics

1 answer:

Contact [7]4 years ago

5 0

X=0
Y=-4

I have attached a picture of the quick work to show the steps of what I did to get those answers.

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Lena took a total of 10 quizzes over the course of 2 weeks. How many weeks of school will

monitta

The answer would be 3 weeks

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3 years ago

Whats the surface area of a cylinder with a base of 12in and hieght of 40in

Paladinen [302]

3920.71 so it wants like djehf ewfewvhe veiv

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4 years ago

Y-4=0 in standard form

wolverine [178]

Standard form : Ax + By = C

y - 4 = 0
y = 4...this is a horizontal line and a horizontal line has a 0 slope

so in standard form, ur equation is : 0x + y = 4

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3 years ago

PLEASE HELP!!! WILL MARK BRAINLEST!!

padilas [110]

Answer:

900.43

Step-by-step explanation:

First find the sales tax

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5 0

3 years ago

Read 2 more answers

Use the quadratic formula to solve the equation 4x^2+6x-4=0

Vesnalui [34]

Answer:

$\large\boxed{x=-2\ or\ x=\dfrac{1}{2}}$

Step-by-step explanation:

$\text{The quadratic formula of an equation}\ ax^2+bx+c=0\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\text{We have}\ 4x^2+6x-4=0\to a=4,\ b=6,\ c=-4.\\\\\text{Substitute:}\\\\x=\dfrac{-6\pm\sqrt{6^2-4(4)(-4)}}{2(4)}=\dfrac{-6\pm\sqrt{36+64}}{8}=\dfrac{-6\pm\sqrt{100}}{8}\\\\x=\dfrac{-6-10}{8}=\dfrac{-16}{8}=-2\ or\ x=\dfrac{-6+10}{8}=\dfrac{4}{8}=\dfrac{1}{2}$

4 0

3 years ago