3 years ago

Describe two different ways to solve -10 =1/4(8y-12)

Mathematics

1 answer:

Elina [12.6K]3 years ago

6 0

Either divide both sides by 1
-/multiply both sides by 4
4

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What are the zero(s) of the function f(x)=<img src="https://tex.z-dn.net/?f=%5Cfrac%7B4x%5E%7B2%7D-36x%20%7D%7Bx-9%7D" id="TexFo

Contact [7]

Answer:

Step-by-step explanation:

The function will be zero when the numerator is equal to 0. So, set the numerator equal to 0 and solve:

$0 = 4 {x}^{2} - 36x$

I will use the quadratic formula:

$\frac{ 36 + \sqrt{ {36}^{2} - 4(4)(0)} }{2(4)} \\ \frac{ 36 + 36}{8} = 9$

Therefore, x = 9 is a 0. Let's check with subtracted root now:

$\frac{ 36 - \sqrt{ {36}^{2} - 4(4)(0)} }{2(4)} \\ \frac{ 36 - 36}{8} = 0$

It appears 0 is also a root.

Therefore, the answer is D.

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mrs_skeptik [129]

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2 years ago

1.)The ratio of the number of boys and girls in class is 10:7. If there are 35 girls, find the number of boys.

mestny [16]

Answer:

There are 50 boys.

Explanation:

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