All categories

2 years ago

(50 POINTS) Write out each sum.

Mathematics

1 answer:

valentina_108 [34]2 years ago

4 0

Step-by-step explanation:

12. n^2+2n

if you insert 1 for k and then work up by inserting 2 for k and adding those together and stoping at n.

13. 8-2(2^n)

if you insert 3 for k and then work up by inserting 4 for k and adding those together and keep on going but stopping at n.

Hope that helps :)

You might be interested in

What is the solution to the equation x + 14 = 63? (Input a whole number only.) (3 points) Blank 1:

Alex

Hey there!

This is a one-step equation, meaning that we can solve it in one step.

This is the step:

Subtract 14 from both sides

Goal:

To find out the value of x

Subtract 14:

x+14-14=63-14

the 14's on the left cancel:

x=49

Hence, the answer is

$\boxed{\boxed{\bold{x=49}}}$

Hope everything is clear.

Let me know if you have any questions!

#LearningDoesn'tEnd

:-)

$\rule{200}{2}$

7 0

2 years ago

2/4 + 10/4=<br> 1<br> 3<br> 7<br> 10

eimsori [14]

Answer:

Step-by-step explanation:

10/4 = 2 1/2

2 1/2 + 2/4 = 3

5 0

3 years ago

What percent of $90 = $45

Lynna [10]

45 is exactly half of 90
that means 45 is 50% of 90.

8 0

3 years ago

Sebastian programs his calculator to cvaluate a linear

jonny [76]

Answer: y = 3/4x

Step-by-step explanation:

Each y-value output is 3/4 of the x-value inputted.

8 x 0.75 = 6

12 x 0.75 = 9

3 0

3 years ago

Help me I need the answer ASAP ! Aundrea painted the background of a square mural on the wall using 138ft^2 of paint .which meas

Klio2033 [76]

Hey there! I'm happy to help!

Since this mural is a square, all the sides are the same. This means that you square on of the sides to get the area (multiply it by itself). If we have the area and want to find a side, we just go backwards and use something called the square root!

If we plug this into our calculators...

√138≈11.74734

We see that is closest to B. 12 ft.

You could also figure this out without a calculator. 138 is very close to 144, which is 12². All the other answer options are way too big.

Have a wonderful day! :D

8 0

2 years ago