Add the two expressions. 2n−3 and −7n+2

2 answers:

8 0

Well, we're not trying to find n, necessarily, simply add the two expressions, right? So let's get the like terms together:

(2n - 7n) + (-3 + 2)

And then add to get -5n - 1

Sedaia [141]3 years ago

4 0

I think -5n-1 but i may be wrong

You might be interested in

Solve for b. 11 3 b b = [?] Pythagorean Theorem: a2 + b2 = c2 Enter.

balu736 [363]

Answer:

√112

Step-by-step explanation:

a^2+b^2=c^2

3^2+b^2=11^2

9+b^2=121

b^2=121-9

b^2=112

b=√112

Mark me as brainliest

3 0

3 years ago

What is the distance between point A and point B?

artcher [175]

Answer:

I would need to see the grapgh

Step-by-step explanation:

4 0

2 years ago

Let f(x) = 1/x . Find the number b such that the average rate of change of f on the interval [2, b] is − 1/8

vekshin1

Answer:

b=4

Step-by-step explanation:

So, we have the function $f(x)=1/x$ . We need to find b such that the average rate of change or the slope is -1/8 between the intervel [2, b]. First, let's find f(2).

f(2) = 1/(2) = 1/2

So, we have the point (2, 1/2)

At point b, f(b) = 1/b.

Let's plug this into the slope formula:

$\frac{y_2-y_1}{x_2-x_1}=\frac{.5-\frac{1}{b} }{2-b} =-1/8$

Now, we just need to solve for b. First, let's multiply both the numerator and denominator by b (to get rid of the annoying fraction in the numerator).

$\frac{.5b-1}{2b-b^2} =\frac{-1}{8}$