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3 years ago

Owing as an algebraic expression using x as your unknown variable

Mathematics

2 answers:

loris [4]3 years ago

7 0

Answer:

3x-1

Step-by-step explanation:

Usimov [2.4K]3 years ago

3 0

The answer is 2x because of the distance formula

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How many solutions does this equation have: -9x+1=-9x+1

Hatshy [7]

All real numbers is the answer

6 0

4 years ago

Read 2 more answers

What is the amplitude of the sinusoidal function?

dem82 [27]

Answer:

The amplitude of the sinusoidal function is 3

Step-by-step explanation:

$Amplitude=\frac{Maximum+Minimum}{2}\\\\Amplitude=\frac{1+(-7)}{2}\\ \\Amplitude=\frac{1-7}{2}\\\\Amplitude=\frac{-6}{2}\\ \\Amplitude=-3=3$

7 0

3 years ago

Determine the equation of the line that passes through the points of intersection of the graphs of the quadratic functions f(x)

timofeeve [1]

Answer: $x-2y-2=0$

Step-by-step explanation:

Given :

$f(x) = x^2 - 4 \\ g(x) = - 3x^2 + 2x + 8$

Point of intersection :

$f(x)=g(x)\\x^2-4=-3x^2+2x+8\\4x^2-2x-12=0\\2x^2-x-6=0\\2x^2-4x+3x-6=0\\2x(x-2)+3(x-2)=0\\(x-2)(2x+3)=0\\x=2\,,\,\frac{-3}{2}$

$x=2\,;f(2)=2^2-4=0\\x=\frac{-3}{2}\,; f\left ( \frac{3}{2} \right )=\left ( \frac{3}{2} \right )^2-4=\frac{-7}{4}=-1.75$

So, we have points $\left ( 2,0 \right )\,,\,\left ( -1.5,-1.75\ \right )$

Equation of line passing through two points $\left ( x_1,y_1 \right )\,,\,\left ( x_2,y_2 \right )$ is given by $y-y_1=\frac{y_2-y_1}{x_2-x_1}\left ( x-x_1 \right )$

Let $\left ( x_1,y_1 \right )=\left ( 2,0 \right )\,,\,\left ( x_2,y_2 \right )=\left ( -1.5,-1.75\ \right )$

So, equation is as follows :

$y-0=\frac{-1.75-0}{-1.5-2}\left ( x-2 \right )\\y=\frac{-1.75}{-3.5}\left ( x-2 \right )\\y=\frac{1}{2}(x-2)\\2y=x-2\\x-2y-2=0$

4 0

4 years ago

Quinn runs 3 miles<br>3 times every week.<br>How many miles<br>does Quinn run in<br>6 weeks?

drek231 [11]

Answer:

54 miles.

Step-by-step explanation:

Quinn runs 3 miles 3 times every week, which means he runs 9 miles every week.

We can multiply this by 6, which we get 54, so get the amount of miles Quinn runs in 6 weeks.

4 0

3 years ago

Read 2 more answers

If some of the omitted variables, which you hope to capture in the changes analysis, in fact change over time within entity, the

stiv31 [10]

Answer:

d. will always be unbiased.

Step-by-step explanation:

When some of variables are omitted the estimator on indulge charge regressor may still be unbiased. If there is a special case where T = 2 then the FE estimator will be unbiased. Fixed effect regression model has different intercepts.

3 0

4 years ago