2 years ago

Please help with khan

Mathematics

2 answers:

nataly862011 [7]2 years ago

8 0

Answer:

Step-by-step explanation:

she solved it correct by subtracting 7.5 from both sides

vladimir2022 [97]2 years ago

4 0

Answer:

he made an mistake in step one

Step-by-step explanation:

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julsineya [31]

Answer:

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Step-by-step explanation:

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3 years ago

In the equation y = -x/4 what is the unit rate?

stepladder [879]

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3 years ago

How do i solve 4m^2+3m-1=0 using the quadratic formula

elixir [45]

Quadratic formulat is used when a^2+bx+c=0 x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$ 4m^2+3m-1=0 a=4 b=3 c=-1 input x= $\frac{-3+/- \sqrt{3^{2}-4(4)(-1)} }{2(4)}$ x= $\frac{-3+/- \sqrt{9+16} }{8}$ x= $\frac{-3+/- \sqrt{25} }{8}$ x= $\frac{-3+/-5 }{8}$ x= $\frac{-8}{8}$ or $\frac{2}{8}$ x=-1 or 1/4