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
Norma-Jean [14]
2 years ago
11

Find the first three terms of the sequence below. Tn = 2n² - 3n - 6 Brainliest to the first correct answer!

Mathematics
1 answer:
Marina CMI [18]2 years ago
5 0

Answer:

-7, -4, 3

Step-by-step explanation:

Tn = 2n² - 3n - 6

  • T1= 2*1²- 3*1- 6= 2- 9= - 7
  • T2= 2*2²- 3*2- 6= 8- 12= - 4
  • T3= 2*3²- 3*3- 6= 18- 15= 3
You might be interested in
What is the unit rate if there are 258 purple polka-dot pencils in 3 purple polka-dot purses?
stiks02 [169]
Unit rate means one. So the best way to solve this is using a proportion over one. If there are 258 pencils in 3 purses 258/3 then how many are in one purses x/1. Cross multiply next. 258/3 * x/1. You get 3x and 258. To get the x alone, divide both sides by three. Your answer is 86 pencils in one purse.
4 0
3 years ago
Please help with this math question
nika2105 [10]
263.27 m^2

rectangle : 15 x 10 = 150 m^2
the half circle at the top has a diameter of 6m. therefore, it’s radius is 3m. if it is cut in half, the part removed from the triangle height is 3m. therefore, the height of the triangle is 35 -15 = 20; 20 - 3 = 17. the height of the triangle is 17. the triangle area formula is a = 1/2(bh).
a = 1/2 (10)(17)
a = 1/2 (170)
a = 85 m^2
the circle would be a = πr^2 but divided by 2 bc it’s a half circle
a = π(3)^2
a = π9
a = 28.27 m^2
150 + 85 + 28.27 = 263.27 m^2
3 0
3 years ago
The solution to f - (-4) = 12 is f = 8.<br><br><br> True False
amid [387]

Answer:

true

Step-by-step explanation:

as negative takeaway a negative is positive so 8-(-4)= 8+4=12

3 0
2 years ago
Read 2 more answers
Solve each system by elimination.
mixas84 [53]
For eliminating you need to have a variable that cancels the other out and in this case 2x and -2x do. Then you want to take -3y+9y and add the numbers after the equal sign. -9+3
3 0
2 years ago
If 75% of a number is 15, 15% of that number
natta225 [31]

Answer:

3

Step-by-step explanation:

0.75 x ? = 15

? = 15/0.75 = 20

15% of 20 = 3

5 0
2 years ago
Other questions:
  • How many times does 9 goes into 3000
    10·2 answers
  • I need to know the step by step on how to solve this question
    5·1 answer
  • I dont understand what I need to do
    9·1 answer
  • How do you turn -0.454 into a fraction
    14·2 answers
  • Which Pairs are additive inverses?<br> a. 6,-(-6)<br> b. -7,7<br> c.-7,-7<br> d.7,7<br> e.6,-6
    11·2 answers
  • Doblando un alambre de 40 cm formamos un rectángulo. Hallar la expresión algebraica que define el área del rectángulo y calcula
    11·1 answer
  • Vera hiked a total of 138 miles in 12 days. She hiked the same distance each day. Write and solve a multiplication equation to f
    14·2 answers
  • A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $52. The total cost to re
    11·1 answer
  • Solve for x. x3=8125 Enter your answer in the box as a fraction in simplest form. x =
    5·2 answers
  • Two sides of a rectangle differ by 35 cm. Find the dimensions of rectangle of its perimeter is 67 cm​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!