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3 years ago

What's the answer for the 2nd question?

Mathematics

2 answers:

AlekseyPX3 years ago

8 0

Answer:

3r/s

Step-by-step explanation:

stepan [7]3 years ago

4 0

<h3>Answer: 2</h3>

Work Shown:

$\left(\frac{r}{s}\right)(x) = \frac{r(x)}{s(x)}\\\\\left(\frac{r}{s}\right)(x) = \frac{2\sqrt{x}}{\sqrt{x}}\\\\\left(\frac{r}{s}\right)(x) = 2\\\\\left(\frac{r}{s}\right)(3) = 2\\\\$

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I really need help with this question

allochka39001 [22]

Answer:

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Step-by-step explanation:

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3 years ago

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A class has 6 boys and 15 girls what is the ratio of boys to girls

ElenaW [278]

A ratio is a comparison of two values. In this case, there are 6 boys to every 15 girls. So, this means the ratio is 6:15.

Hopefully, this helps!

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4 years ago

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Answer these questions please please

Natalka [10]

Answer:

Step-by-step

i) a² - 2ab + b² = (a + b)²

a² = p² ; a = p

b² = 16 = 4² ; b = 4

2ab = 2*p*4 = 8p

p² - 8p + 16 = (p - 4)²

ii) a² + 2ab + b² = (a +b)²

a² = 121x² = (11x)² ; b² = 4y² = (2y)²

2ab = 2 * 11x * 2y = 44xy

121x² + 44xy + 4y² = (11x + 2y)²

4 0

3 years ago

How do you solve it?

MatroZZZ [7]

Answer:

i: x=-2, x=1

ii: x=-1/2

Step-by-step explanation:

Quadratic form:

You solve i by using FOIL (First, Outside, Inside, Last) because it is a multiplication problem.

$(x+2)(x-1)=0$

"first" would be $x*x$ , which would equal $x^{2}$

"outside" would be $x*-1$ , which would equal $-1x, or -x$

"inside" would be $2*x$ , which would equal $2x$

"last" would be $2*-1$ , which would equal $-2$

Now you need to combine the terms so that they are one after the other

$x^{2}-x$ $+2x-2$

Combine like terms, and you should get:

$x^{2} +x-2$

i Solution

You need to get the variable by itself.

Subtract two from both sides

$x+2=0\\x=-2$

Add one to both sides.

$x-1=0\\x=1$

ii Solution

Add all the terms.

$x+2+x-1=0\\2x+1=0\\2x=-1\\x=-\frac{1}{2}$

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3 years ago

Of 1. The book is on the

artcher [175]

Answer: I write more than one choice . The book is on the table , desk , bed , chair or shelf.

Step-by-step explanation: hope it helps

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2 years ago