3 years ago

What is the sum of (-2.1x + 3.7) and (5 + 4.9x)?

Mathematics

1 answer:

stellarik [79]3 years ago

3 0

Answer: $=2.8x+8.7$

$=-2.1x+3.7+5+4.9x$

$=(-2.1x+4.9x)+(3.7+5)$

$=2.8x+8.7$

You might be interested in

Please help me do it i cant get it

Harman [31]

AB<AC<BC.BC<CD<BD
AB<AC<BC<CD<BD

5 0

3 years ago

Given the function f(x)=x^2-8x+13f(x)=x, determine the average rate of change of the function over the interval −1≤x≤6.

Ann [662]

Given:

Consider the given function is:

$f(x)=x^2-8x+13$

To find:

The average rate of change of the function over the interval $-1\leq x\leq 6$ .

Solution:

The average rate of change of the function f(x) over the interval [a,b] is:

$m=\dfrac{f(x_2)-f(x_1)}{x_2-x_1}$

We have,

$f(x)=x^2-8x+13$

At $x=-1$ ,

$f(-1)=(-1)^2-8(-1)+13$

$f(-1)=1+8+13$

$f(-1)=22$

At $x=6$ ,

$f(6)=(6)^2-8(6)+13$

$f(6)=36-48+13$

$f(6)=1$

Now, the average rate of change of the function f(x) over the interval $-1\leq x\leq 6$ is:

$m=\dfrac{f(6)-f(-1)}{6-(-1)}$

$m=\dfrac{1-22}{7}$

$m=\dfrac{-21}{7}$

$m=-3$

Therefore, the average rate of change of the function f(x) over the interval $-1\leq x\leq 6$ is -3.

6 0

3 years ago

What is the explicit rule for the sequence? 10.5,9,7.5,6,4.5,3

STALIN [3.7K]

Answer: the second one

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

"You figure you can ride Ghost Wind, then get on. Just bring him back to the stable when you're finished so I can rub him down."

AlekseyPX

Answer:

character vs nature.

minor

I got it right on edge 2021

5 0

3 years ago

Read 2 more answers

Figure J is similar to Figure M.

marusya05 [52]

Answer:

what are the equations?

Step-by-step explanation:

6 0

3 years ago