1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Darina [25.2K]
3 years ago
10

3.

Mathematics
2 answers:
zheka24 [161]3 years ago
6 0

Answer:

20

Step-by-step explanation:

Sn = (n/2)(a1 + a1 + d(n-1)), where S = sum, a1 = first term, n = number of terms, d = common difference

 

400 = (n/2)(1 + 1 + 2(n - 1))

400 = (n/2)(2  + 2n - 2)

400 = (n/2)(2n

400 = n2

20 = n

 

Twenty numbers are in the set.

Lesechka [4]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
Graph f(x)=|x−2|+3 .<br><br> Use the ray tool to graph the function.
maks197457 [2]

Answer:

Answer:

The graph will be 2 units away from the origin on positive x-axis and three units upward from the origin towards y-axis.

Step-by-step explanation:

Here is a graph attached with it.

To graph \left | x-2 \right |+3 we know that positive \left | x \right | is a V shaped from the origin.

Key points:

  • To move rightward there must be a negative inside the parentheses.
  • And to move upward we must have positive b = constant.

If we have to move towards x-axis then we must have negative inside it.

And if we have to move upward in y-axis positive we must have positive constant value.

So the graph will be three units upward and two units rightward with a V-shaped ray.

4 0
3 years ago
Can someone please give me the (Answers) to this? ... please ...
harkovskaia [24]

Answer:please correct me if I’m wrong but I believe Part A for the slopes are…

1.3/1 or 3

2.-3

3.9/5

4.4/3

Step-by-step explanation:

It’s going up 3 and “running” 1 and it’s positive since the line is going up.

Y2-y1. -16-2

————= ————=-18/6=-3

X2-x1. 8-2

You’re just finding the slope

Solve for it. If further explanation is needed please tell me.

5 0
2 years ago
Read 2 more answers
Solve algebraically 10+f=10
Sunny_sXe [5.5K]
10 + f = 10
-10         -10


f = 10 - 10

f = 0.
4 0
2 years ago
Please help not sure what these are
Leviafan [203]

Answer:

I believe it's the first one

7 0
3 years ago
This composite figure is created by placing a sector of a circle on a rectangle. What is the area of this composite figure? Show
Soloha48 [4]

Answer:

area of the figure: 29.92 m²

formula's:

  • area of rectangle: length * width
  • area of sector: ∅/360 * πr²

solving steps:

area of rectangle + area of sector

5.5 * 4 + 30/360 * π(5.5)²

22 + 7.919

29.92 m²

8 0
2 years ago
Read 2 more answers
Other questions:
  • A snail travels 3/8 feet in 1/2 hour.
    14·1 answer
  • 3,219 millimeters of of water and 185 millimeters of orange syrup are mixed to make orange juice. about how many orange juice wi
    5·1 answer
  • Find the Quotient. please help me<br><br> 4)5,389
    14·1 answer
  • Find the area of a triangle whose base is x^2+2x+4 and whose height is 2x^2x +2x+6
    7·1 answer
  • The diameter of a circle is 46 yards. What is the circle's circumference? d=46 yd Use 3.14 for it.
    14·1 answer
  • PLz DO it all I will give brainlest and thanks.
    7·1 answer
  • The ages of attendees at two different movies were randomly sampled. The data is presented in the double box plot. Compare the m
    7·1 answer
  • Find f(-6)<br> FINAL EXAM PLEASE HELPPPP
    8·2 answers
  • -8(x+4)=40<br> Please show step by step
    8·1 answer
  • X and Y intercepts of y=1/3x
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!