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]
3 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]3 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
Emily purchased lemons for $600. She sold 3/4 of these at a loss of 20% and the remaining at a gain of 20%. How much percent doe
MAVERICK [17]

Answer:

10%

Step-by-step explanation:

Given: CP of lemon is $600.

           3/4 of lemon sold at 20% loss

           Remaining lemon at 20% gain.

Considering the quantity of lemon remain constant.

Cost price of 3/4 of lemon= \frac{3}{4} \times 600= \$450

As given, 3/4 of lemon sold at 20% loss.

∴ Selling price of \frac{3}{4}\ of\ lemon=  450- \frac{20}{100}\times 450

Selling price= 450- 90= \$ 360

Hence, selling price of 3/4 lemon is $360.

Now, the cost price of remaining lemon (1-\frac{3}{4} )= (\$ 600-\$ 450)

∴ The cost price of \frac{1}{4}\ lemon = \$ 150

As given, remaining \frac{1}{4} lemon\ sold\ at\ gain\ of\ 20\%

∴ Selling price of \frac{1}{4} \ lemon= (150\times \frac{20}{100}+150)

Selling price of \frac{1}{4} \ of\ lemon= (30+150)

Hence, selling price of 1/4 lemon is $180

Loss\profit percent= \frac{(SP-CP)}{CP} \times 100

∴ Loss\profit percent= \frac{60}{600} \times 100= 10\%

Hence, the loss percentage is 10%

8 0
3 years ago
What is the average size of a highschool diploma?
OlgaM077 [116]
The standard size of diplomas are 11x14''
Law Schools or Medical Schools are bigger for colleges. 
4 0
3 years ago
the length of a rectagle is 5 in longer than its width. if the perimeter of the rectangle is 58 in, find its length and width
dolphi86 [110]

Answer:

  • Length = 17 inches

  • Width = 12 inches

⠀

Step-by-step explanation:

⠀

As it is given that, the length of a rectangle is 5 in longer than its width and the perimeter of the rectangle is 58 in and we are to find the length and width of the rectangle. So,

⠀

Let us assume the width of the rectangle as x inches and therefore, the length will be (x + 5) inches .

⠀

Now, <u>According to the Question :</u>

⠀

{\longrightarrow \qquad { \pmb{\frak {2 ( Length + Breadth )= Perimeter_{(Rectangle)} }}}}

⠀

{\longrightarrow \qquad { {\sf{2 ( x + 5 + x )= 58 }}}}

⠀

{\longrightarrow \qquad { {\sf{2 ( 2x + 5  )= 58 }}}}

⠀

{\longrightarrow \qquad { {\sf{ 4x + 10= 58 }}}}

⠀

{\longrightarrow \qquad { {\sf{ 4x = 58  - 10}}}}

⠀

{\longrightarrow \qquad { {\sf{ 4x = 48}}}}

⠀

{\longrightarrow \qquad { {\sf{ x =  \dfrac{48}{4} }}}}

⠀

{\longrightarrow \qquad{ \underline{ \boxed { \pmb{\mathfrak {x = 12}} }}} }\:  \:  \bigstar

⠀

Therefore,

  • The width of the rectangle is 12 inches .

⠀

Now, We are to find the length of the rectangle:

{\longrightarrow \qquad{ { \frak{\pmb{Length = x + 5 }}}}}

⠀

{\longrightarrow \qquad{ { \frak{\pmb{Length = 12 + 5 }}}}}

⠀

{\longrightarrow \qquad{ { \frak{\pmb{Length = 17}}}}}

⠀

Therefore,

  • The length of the rectangle is 17 inches .

⠀

8 0
2 years ago
Read 2 more answers
Find the area of the figure
Minchanka [31]

Step-by-step explanation:

To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.

5 0
2 years ago
Determine if the two figures are similar by using transformations
Sloan [31]

Step-by-step explanation:

they are the same because FIGH just the ENLARGEMENT of ABCD

8 0
3 years ago
Other questions:
  • Kate asked some friends how many movies they saw last winter. Use her data in the table below for your answer.   Movies Seen Las
    10·1 answer
  • A number that when substituted for the variable makes a true statement
    8·1 answer
  • If cardboard costs $0.05 per square inch, how much would it cost to make a box with a surface area of 384 sq inch? How would you
    15·2 answers
  • A bookstore has 15 isles each I’ll has 22 shells how many shells are in the bookstore
    13·2 answers
  • Which number has a terminating decimal expansio<br> A.2/7<br> B.12<br> C.5/8<br> D2/11
    10·1 answer
  • Is (5,6.5) a solution to y= -1/2x + 9?
    9·1 answer
  • 100 inches is greater than or less than or equal to 3 yard and 1ft
    13·1 answer
  • I need answers please.
    11·1 answer
  • George is at the shop and sees that 6 antiques cost $18. He needs 48 antiques to make a small museum. How much will 48 antiques
    7·1 answer
  • Please show me how you got the answer. Will give brainliest.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!