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2 years ago

If f(n) = n 2 - n, then f(-4) is _____.

Mathematics

2 answers:

stich3 [128]2 years ago

7 0

Answer:

susgidhkdldhoxhljxjxyjsjtztxyxiuttxixtidyfyxkgk

Step-by-step explanation:

odyxixfjxkcyickcgixgjx

zheka24 [161]2 years ago

4 0

Answer:

i just want points and i don't know how too do that because I'm only in 6th grade

Step-by-step explanation:

i dislike life

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The equation of line f is y − 9 = -5(x + 7) . Line g is parallel to line f and passes through (3, -8) . What is the equation of

Kisachek [45]

Answer:

The slope intercept form: y = - 5x + 7

Step-by-step explanation:

The equation of line f is y − 9 = -5(x + 7)

You need to find the slope of line f

y - 9 = -5(x + 7)

In point slope form: y - y1 = m(x - x1) where m = slope

In the line f, slope m = -5

Parallel lines, slope is the same so slope of line g is also equal - 5

Line g passes through (3, - 8) so equation in point slope form:

y + 8 = -5(x - 3)

y + 8 = -5x + 15

y = -5x + 7 <-----this is slope intercept form

5 0

3 years ago

Please help me!! thank you!!

I am Lyosha [343]

Answer:

A. 106 + 2x + 50 = 180

Step-by-step explanation:

A. 106 + 2x + 50 = 180. Correct.

B. 2x + 50 = 180. Incorrect. Angle is not a Straight Angle.

C. 2x + 50 = 106. Incorrect. That equals the first angle.

hope this helps.

4 0

2 years ago

Solve the equation step by step in form of rational and irrational numbers x^2=144

Blababa [14]

X^2=144
12^2=144
x=12 or -12

8 0

2 years ago

Read 2 more answers

Simplify this equation Thanks a lot!!!

den301095 [7]

Answer:

-1

Step-by-step explanation:

We need to simplify the given expression . The given expression is ,

$\rm\implies ( 2 \sqrt6 +5)^{2n-1} ( 2\sqrt6 - 5)^{2n-1}$

Here we can see that the power of the both exponent is same that is (2n+1) . Recall the property of exponents ,

$\bf\implies a^m \times b^m = (ab)^m$

Using this property , we have ,

$\rm\implies ( 2 \sqrt6 +5)^{2n-1} ( 2\sqrt6 - 5)^{2n-1}$

This can be written as ,

$\rm\implies\{( 2 \sqrt6 +5) ( 2\sqrt6 - 5)\}^{2n-1}$

Simplifying using ( a+b)(a-b) = a² - b² ,

$\rm\implies\{( 2 \sqrt6)^2 -5^2 \}^{2n-1}\\\\\rm\implies ( 24 - 25)^{2n-1}$

Subtracting the numbers inside the brackets ,

$\rm\implies (-1)^{2n - 1 }$

Now we know that every odd number is in the form of 2n -1 , where n is any integer. Therefore , the power is odd .

Since the base is (-1) , for even power it is 1 and for odd power it is -1 . Therefore the final answer is ,

$\rm\implies\boxed{\quad \red{ -1 }\quad }$

Hence the required answer is (-1) .

4 0

2 years ago

Write equation in function form 6-y=17x

Elanso [62]

$6-y=17x \ \ |\ subtract\ 6\ to\ both\ sides \\\\-y=17x-6\ \ | \ multiply\ both\ sides\ by\ (-1)\\\\y=-17x+6$

8 0

3 years ago