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4 years ago

Using the ratio 2 out of every 5 students

Mathematics

1 answer:

Hatshy [7]4 years ago

7 0

Answer:

Step-by-step explanation:

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M<br><img src="https://tex.z-dn.net/?f=m%20%7B2%7D%20%20%20-%20m%20-%202%20%3D%200" id="TexFormula1" title="m {2} - m - 2 = 0"

Serjik [45]

Answer:

m=2-2

m=0

Step-by-step explanation:

U need to do substitution

So u carry both 2 from that side to cross the equal to sign. One becomes positive because it is carrying a negative sign at the other side

4 0

3 years ago

Complete the equation of the graphed linear function in point-slope form. y – (–2) = (x – ) The graph of the function goes throu

sammy [17]

Answer:

$y-(-2) = 4(x-1)$

Step-by-step explanation:

Point-slope form of the equation of a straight line is:

$y-y_0 = m(x-x_0)$ (1)

The two points given in the problem are:

$(x_0,y_0)=(1,-2)\\(x_1,y_1)=(2,2)$

So, the slope of the line is given by:

$m=\frac{y_1 -y_0}{x_1 -x_0}=\frac{2-(-2)}{2-1}=\frac{4}{1}=4$

And substituting into eq.(1), we find:

$y-(-2) = 4(x-1)$

4 0

4 years ago

Find f(g(x)) and g(f(x)) 1. F(x) = X²-3x+1 g(x)=5x-7

Mariana [72]

We are given the following functions

$\begin{gathered} f(x)=x^2-3x+1 \\ g(x)=5x-7 \end{gathered}$

Let us first find f(g(x)

Substitute x = 5x - 1 into the function f(x) and simplify

$\begin{gathered} f(g(x))=(5x-7)^2-3(5x-7)+1 \\ f(g(x))=(25x^2-2\cdot5x\cdot7+49)^{}-15x+21+1 \\ f(g(x))=25x^2-70x+49^{}-15x+22 \\ f(g(x))=25x^2-70x-15x+49+22 \\ f(g(x))=25x^2-85x+71 \end{gathered}$

Now let us find g(f(x))

Substitute x = x² - 3x + 1 into the function g(x) and simplify

$\begin{gathered} g(f(x))=5(x^2-3x+1)-7 \\ g(f(x))=5x^2-15x+5-7 \\ g(f(x))=5x^2-15x-2 \end{gathered}$

Therefore, f(g(x) and g(f(x)) are

$\begin{gathered} f(g(x))=25x^2-85x+71 \\ g(f(x))=5x^2-15x-2 \end{gathered}$

5 0

1 year ago

What is the value of 7^2 x 7^0

sineoko [7]

The answer is 49

Hope this helps

7 0

3 years ago

Read 2 more answers

Suppose a normal distribution has a mean of 266 and a standard deviation of

Elis [28]

Answer:

I think the answer is P(x>178)

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers