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
Yuliya22 [10]
3 years ago
14

The question is below​

Mathematics
1 answer:
Cloud [144]3 years ago
3 0

Answer:

See below.

Step-by-step explanation:

a.

The first figure has 1 square. The second figure has a column of 2 squares added to the left. The third figure has a column of 3 squares added to the left. Each new figure has a column of squares added to the left containing the same number of squares as the number of the figure.

b.

Figure 10 has 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55 squares.

c.

The formula for adding n positive integers starting at 1 is:

1 + 2 + 3 + ... + n = n(n + 1)/2

For figure 55, n = 55.

n(n + 1)/2 = 55(56)/2 = 1540

d.

Let's use the formula set equal to 190 and solve for n. If n is an integer, then we can.

n(n + 1)/2 = 190

n(n + 1) = 380

We know that 380 = 19 * 20, so n = 19.

Answer: yes

e.

Use the formula above,

S = n(n + 1)/2, where S is the sum.

f.

n(n + 1) = 1478

38 * 39 = 1482

37 * 38 = 1406

You might be interested in
The entire graph of the function g is shown in the figure below.
marusya05 [52]

The domain of the function is [-4, 4) and the range of the function is [-5, 2)

<h3>How to determine the domain and the range of the function?</h3>

<u>The domain</u>

As a general rule, it should be noted that the domain of a function is the set of input values or independent values the function can take.

This means that the domain is the set of x values

From the graph, we have the following intervals on the x-axis

x = -4 (closed circle)

x =4 (open circle)

This means that the domain of the function is [-4, 4)

<u>The range</u>

As a general rule, it should be noted that the range of a function is the set of output values or dependent values the function can produce.

This means that the range is the set of y values

From the graph, we have the following intervals on the y-axis

y = -5 (closed circle)

y = 2 (open circle)

This means that the range of the function is [-5, 2)

Read more about domain and range at:

brainly.com/question/10197594

#SPJ1

7 0
2 years ago
First 8 is added to me , then j am multiplied by 6.then 40 is subtracted from me .Finally I am divided by 10. The result is 11.
alexdok [17]
11x10=110
110+40=150
150/6=25
25-8=17
17 is the number.
4 0
2 years ago
Please answer this triangle question (see photo)
Juliette [100K]
The picture below is my answer of what I have seen.Thank you.

4 0
2 years ago
#5 need help asap will give brainly
DerKrebs [107]

This might help

total surface area Stot = 42.5 ft2

lateral surface area Slat = 30 ft2

top surface area Stop = 6.25 ft2

bottom surface area Sbot = 6.25 ft2

but im thinking they would need 113.7 ft of rapping paper i many be totally wrong tho

4 0
3 years ago
Read 2 more answers
Which of the following is the solution to the equation - y = 24?
Naddik [55]

Answer:

The Answer to this equation Y = 32

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • HEELLELEEPEELPELP Okay thanks :D
    7·1 answer
  • write an equation in standard form for a line that is (a) parallel (b) to the line with an equation of y=3x-5 that passes throug
    12·1 answer
  • to the nearest thousandth what is the cosine of the angle formed by the line whose equation is y=2x and the positive x axis
    14·1 answer
  • How to do this &amp; what the answer is PLSSSSS HELP
    14·1 answer
  • De acordo com o estudo da equação do 1o grau, determine o valor de x que satisfaz a equação abaixo ?
    14·1 answer
  • Please help!
    9·1 answer
  • A truck driver drove 120 miles and 1 3/4 hours what is the speed of the truck in miles per hour
    9·1 answer
  • 10(x-5)= -80 <br>what is the value of the x​
    13·1 answer
  • A six-sided number cube is weighted so that the number do not all have the same probability of landing up
    12·1 answer
  • What’s does 120$ plus 40% mean
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!