what is the third term of the sequence defined by f(n)=2n-1

Answers

Answer 1

Answer:

your Answer has to be 5

Step-by-step explanation:

f(3) = 2x3 - 1

= 6 - 1

= 5


Related Questions

need help asap please !!

Answers

Answer:

g(3) = 13

Step-by-step explanation:

The function g(3) means you replace every x value in the g(x) equation with 3:

[tex]g(x) = x^2 + 4\\g(3) = 3^2 + 4\\g(3) = 9 + 4\\g(3) = 13[/tex]

Hope this helps!

Answer:

13

Step-by-step explanation:

putting the 3 there just means to replace all x's with 3. If you do that you get g(3) = 3^2 + 4 and if you solve that its 13

ill mark brainliest thanks​

Answers

Answer:

x=10

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the opposite interior angles

6x-7 = 26+2x+7

Combine like terms

6x-7 = 2x+33

Subtract 2x

6x-7-2x =2x+33-2x

4x-7 = 33

Add 7 to each isde

4x-7 +7 = 33+7

4x=40

Divide by 4

4x/4 = 40/4

x=10

5. Aaron sold 126 boxes of cookies. This is 14 more than twice the
number of boxes his sister, Victoria, sold. How many boxes of
cookies did Victoria sell?

Answers

Answer:

112

Step-by-step explanation:

Aaron = y

Victoria = x

y = 14 +x

126 = 14 + x

x = 112

Victoria sold 112 boxes of cookies

NASA launches a rocket at t = 0 seconds. Its height, in meters above sea level, as a function of time is
given by h(t) = – 4.9t2 + 235t + 269.
Assuming that the rocket will splash down into the ocean, at what time does splashdown occur?

Answers

if h is m above the ocean and your trying to find when the rocket reaches that ocean… as the function gives the height above the ocean at a given time, when the height equals 0 the rocket will have reached the ocean so solve for t when h=0. working out in the photo. i got t=48.88seconds

Jon makes 20 free throws in practice on
Monday. He makes 25% more free throws
on Friday than Monday. Enter the number
of free throws Jon makes on Friday.
Show your work.

Answers

Answer:

25 free throws on Friday.

Step-by-step explanation:

On Monday  made 20 free throws

On Friday made 25%  more free throws on Friday than Monday

On Friday made 20 free throws + 25% of Monday free throws

On Friday = Monday throws + 25% × Monday throws

On Friday       = 20 + (.25 × 20)

On Friday        = 20 + 5

On Friday         = 25

A table is on sale for 32% off. The sale price is $459.
What is the regular price?

Answers

the regular price is "x", which of course is the 100%, but we also know that $459 is 32% off that, hmmmmm well 100% - 32% = 68%, so $459 is really 68% of "x", because $459 is whatever "x" is minus 32%.

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 459&68 \end{array}\implies \cfrac{x}{459}=\cfrac{100}{68}\implies \cfrac{x}{459}=\cfrac{25}{17} \\\\\\ 17x = 11475\implies x = \cfrac{11475}{17}\implies x = 675[/tex]

$675 is the regular price. $459 is 68% of the original price. (100-32=68). To find the original price you would do 459 divided by 0.68 and would get 675. To check that you would do 675 times 0.68 and would get 459. I hope this helps

I need help with a law of sines question.

Answers

Step-by-step explanation:

B will equal 20.87 degrees

C will equal 42.1 degrees

c will equal 26.3

What will be the velocity of a when it travels 300 min 30 second?with explanation.​

Answers

you know that velocity and speed have the same equation right? so v= d/t
300/30= 10m/s
hope it helps

Calculate SP (the sum of products of deviations) for the following scores. Note: Both means are whole numbers, so the definitional formula works well: X Y 4 5 0 2 1 1 3 4

Answers

Applying the formula, it is found that the SP for both numbers is of 7.

The first step is finding the mean for both sets, hence:

[tex]M_x = \frac{4 + 0 + 1 + 3}{4} = 2[/tex]

[tex]M_y = \frac{5 + 2 + 1 + 4}{4} = 3[/tex]

Then, the SP(sum of products of deviations) is the sum of the multiplications between each value x and the mean, with each respective value of y(same index) and the mean, hence:

[tex]SP = (4 - 2)(5 - 3) + (0 - 2)(2 - 3) + (1 - 2)(1 - 3) + (3 - 2)(3 - 4) = 7[/tex]

The SP for both numbers is of 7.

A similar problem is given at https://brainly.com/question/20640860

Is x = 1 a function?

Answers

Yes x = 1 is a function.
Hope this helps :(

Answer:

Yes

Step-by-step explanation:

It is a constant linear function, which is in fact a function.

Have a nice day!

   I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Reduce 45/36 fraction into the
lowest terms.

Answers

Answer:

[tex] \frac{5}{4} [/tex]

Hello there! :)

45/36

Let's look for common factors:

45 is divisible by 3, 9 (I list the common factors here)

36 is divisible by 3, 9

Now, the greatest common factor (9) is the one we will use.

Divide 45 by 9:

5

36 by 9:

4

So the answer is 5/4.

Hope this helps!

~Just a determined gal

#CarryOnLearning

[tex]MysteriousNature[/tex]

Kiran wants to buy blueberries and raspberries to make a fruit tart. Blueberries cost $3.25 per pound and raspberries cost $2.50 per pound. How many pounds of fruit does he buy if he buys 2 pounds of blueberries and 1.5 pounds of raspberries? How many pounds of fruit does he buy if he buys x pounds of blueberries and y pounds of raspberries?

Answers

Answer:

$10.25 pounds of fruit

Step-by-step explanation:

3.25 x 2 = 6.5

2.50 x 1.5 = 3.75

3.75 + 6.5 = 10.25

PLEASE SHOW YOUR WORK!!!





Solve for y: 3^3 + 14 y- (25y - 13) = y + 7y - 9y

Answers

Answer:

y = 4

Step-by-step explanation:

3^3 + 14y - (25y - 13) = y + 7y - 9y

Exponents first.

27 + 14y - (25y - 13) = y + 7y - 9y

Distribute the negative sign from the parenthesis.

27 + 14y - 25y + 13 = y + 7y - 9y

Common terms.

27 + 13 = 40

14y - 25y = -11y

y + 7y - 9y = -y

40 - 11y = -y

Add 11 to both sides.

40 = 10y

Divide both sides by 10.

4 = y

Rearrange.

y = 4.

A runner is 7/8 mile from the finish line. If she can travel 3/8 mile per minute, how long will it take her to finish the race?​

Answers

Answer:

2 1/3 minutes

Step-by-step explanation:

Distance:

d = 7/8 mile

Speed:

s = 3/8 mpm

Time:

t = d/st = 7/8 : 3/8 = 7/8 * 8/3 = 7/3 = 2 1/3 min

Answer:

Step-by-step explanation:

help me again due today there is more question after

Answers

Given equation

[tex]\\ \sf\longmapsto 42=6b[/tex]

[tex]\\ \sf\longmapsto 6b=42[/tex]

Take 6 to right

[tex]\\ \sf\longmapsto b=\dfrac{42}{6}[/tex]

[tex]\\ \sf\longmapsto b=7[/tex]

Option D

what is the sequre of 9?

Answers

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

The square root of 9 is 3.

√9=3

Hope this helps :)

Answer this question fast pls

Answers

Answer:

Lemons ( 27 ) = Cups ( 9 )

Cups ( 50) = Lemons (30)

y=−3x+7x=−2y−16
(−6, 11)
(6, −11)
(11, −6)
(−11, 6)

Answers

Answer:

D. (−11, 6)

Step-by-step explanation:


Find x

Will be marked brainliest

Answers

Answer:

x = -49

Step-by-step explanation:

The sum of the angles of a triangle is 180°. Set up the following equation and solve for x.

[tex]-x-5+37+99=180\\\\-x+131=180\\\\-x=49\\\\x=-49[/tex]

-----------------------------

Answers

Answer:

thanks for tha points

Step-by-step explanation:

A rectangle has vertices at (-2, 1), (3, 1). (3,-2), and (-2,-2).
What is the area of the rectangle?
8 square units
B. 10 square units
O c. 12 square units
O D. 15 square units

Answers

Answer:

C

Step-by-step explanation:

Answer:

D. 15 square units

Step-by-step explanation:

Explanation shown in the screenshots of the graph.

anyone good at maths?​

Answers

1 ) 4 × 11 = 44 yd

____________________

2) 4 × 2 = 8 ft

____________________

3) 4 × 4 = 16 in

____________________

4) 4 × 6 = 24 ft

____________________

5) 4 × 18 = 72 in

____________________

6) 4 × 5 = 20 yd

____________________

7) 4 × 9 = 36 in

____________________

8) 4 × 13 = 52 yd

____________________

9) 4 × 10 = 40 ft

Answer:

I am good, but not for peremiter

Step-by-step explanation:

Write a polynomial function of the least degree that has roots of 3 and (4 + i).

Roots:
Polynomial Function:

Answers

Answer:

x³ - 11x² + 41x - 51

Step-by-step explanation:

The least number of degree is 3 and the third root should be (4 - i) to make polynomial rational.

The polynomial is:

(x - 3)(x - (4 + i))(x - (4 + i)) = (x - 3)(x² -x(4 + i + 4 - i) + (4 + i)(4 - i)) = (x - 3)(x² - 8x + 16 - (-1)) = (x - 3)(x² - 8x + 17) = x³ - 8x² + 17x - 3x² + 24x - 51 = x³ - 11x² + 41x - 51

A pair of Beats Wireless Headphones normally cost $299.99. They are on sale for $229.99. Find the percent of markdown.

Answers

Answer:

$159.99

Step-by-step explanation:

Bruno's Burgers has a cook to server ratio of 2 to 5. The total number of servers and cooks is 42. How many more servers does Bruno's Burgers employ than cooks?

Answers

Answer:

18

Step-by-step explanation:

2 to 5 2+5=7 42/7=6

6x2=12. cooks

6x5=30 servers

servers subtracted by cooks equals difference

30-12=18

20 EASY POINTS PLUS BRAINLIEST IF YOU ANSWER THIS QUESTION

Answers

Mark me as Brainliest Please

Dan bought a truck for $29,800. The value of the truck depreciated at a constant rate per year. The table shows the value of the truck after the first and second years: Year 1 2 Value (in dollars) 26,522 23,604.58 Which function best represents the value of the truck after t years? f(t) = 29,800(0.89)t f(t) = 26,522(0.89)t f(t) = 29,800(0.11)t f(t) = 26,522(0.11)t

Answers

Answer:

A) f(t) = 29,800(0.89)^t

Step-by-step explanation:The truck value decreases by 11% each year.

The present value of the truck was $29,800.

29,800 x 0.11 = 3,728 dollars lost from value.

29,800 - 3,728 = 26,522, the value of the truck after one year.

26,522 x 0.11 = 2,917.42 cash lost from value.

26,522 - 3,728 = 23,604.58, the value of the truck after two years.

Therefore, the answer is A) f(t) = 29,800(0.89)^t.

When 36x^4 + 12x^8 is divided by 12x^4, the result is

Answers

Answer:

The result is 3+x^4.

Multiply & Divide Fractions Task Card # 29
3
4
Beverly walks for exercise
mile every day: How far does
she walk each week?

Answers

Answer:

I dont understand what you're saying, but im thinking 7 miles?

Can someone help me please

Answers

Answer:

sorry i can answer that the asy

Answer:

Q1 - 10080

(sorry couldn't do q2 haha)

step by step;

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