The third term in an arithmetic sequence is 9 and the fifth term is 21 . If the first term if a1, which is an equation for the nth term of this sequence?

A:an=6n-9
B:an=14n+6
C:an=6n+14
D:an=9n-6

Answer:

y = 29

Step-by-step explanation:

Since the angles are vertical they are equal

4y - 8 = 79 + y

3y = 87

y = 29

Answer:

The other person is correct! :)

Step-by-step explanation:

I took the quiz on k12 sooo

Answer:

he needs to play 14.25

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

It’s the only one with sides that correlate

Answer:D  1017

Step-by-step explanation:

Answer:

161

Step-by-step explanation:

Given the functions

f (x) = 2x^2 – 1

g(x) = 3x

we are to find f(g(3))

First look for the composite function f(g(x))

f(g(x)) = f(3x)

f(3x)  = 2(3x)² - 1

f(3x)  = 2*9x² - 1

f(3x)  = 18x² - 1

f(g(x)) =  18x² - 1

Substitute x  = 3 into the result

f(g(3)) = 18(3)² - 1

f(g(3)) = 18*9- 1

f(g(3)) = 162-1

f(g(3)) = 161

Hence f(g(3)) is 161

Answer:

i need an answer to have you figured it out yet

Step-by-step explanation:

Answer:

B - (Probably)

Step by step explanation:

the Volume of the Pyramid = Volume of Prism / 3

198cm^3 / 3  = 66cm^3

Answer:

what did ur lil sis do??? hurry call the police and get immediate help right away ok

Step-by-step explanation:

Answer: Sorry mate it didn't pop up anyway hi man how's it been

Answer:

P: 23

H: 12

B: 16

Step-by-step explanation:

Your welcome :)

Answer: 3

Step-by-step explanation:

A florist sold 12 flower bouqets yesterday, which included 2 daisy bouquets. This shows that the fraction of daisy bouquet is 2/12 = 1/6.

Therefore, if there are 18 boquetes sold, the number that's expected to be daisy bouquets will be:

= 1/6 × 18

= 3

Answer:

if it's not multiple choice, I'd say 36 + 4x

Step-by-step explanation:

Commutative property

Answer:

D.) -4(x + 9)

Step-by-step explanation:

Plz mark brainliest

Answer: The answer is 1638 ft

Step-by-step explanation:

The formula to find area is L x W x H

Length x Width x Height

So 9 ft x 7 ft x 26 ft = 1638 ft

Answer:

A, B, C, and F is your possible answers

The quotient of means to divide so  it could be any symbol and they could switch places when dividing.

Answer:

it would be 457.2 cm or if you want it simplified then it would be 457 cm

hope this helped :)

Answer:

$11.25

Step-by-step explanation:

You take the original cost and multiply it by 0.25 for 25%. You get 3.75. Then you subtract 3.75 from 15.00. The answer is $11.25

Answer:

4x+5

Step-by-step explanation:

1. You collect all the like-terms together which would be 7x and 3x

so it would be 7x-3x which would be 4x

since 7-3=4

them we collect 4x and 5 and we get 4x+5

make sure you write the variable answer first    

Hope this helps and answers your question! Have a great day/night!

Answer:

3

Step-by-step explanation:

(2x + 4)(x - 3)(7x - 5)

The factors are the terms inside the parentheses

2x+4 is a factor

x-3 is a factor

7x-5 is a factor

Answer:

1107 feets below sea level

Step-by-step explanation:

Given that :

Initial elevation of submarine = 984.6 feets below sea level

Depth of dive from initial elevation = 122.4 feets below sea level

The elevation after the dive :

Initial elevation + depth of dive

984.6 + 122.4

= 1107 feets below sea level

Answer:

17

Step-by-step explanation:

that's what it equals to

Answer: 4(3+1)/4c-q^1/2d i think tht is how you do it...

Step-by-step explanation:

apply the distribuitive property to create an equivalent expression

4

(

3

+

1

)

4

c

−

q

1

2

d

Write the problem as a mathematical expression.

apply the distribuitive property to create an equivalent expression

4

(

3

+

1

)

4

c

−

q

1

2

d

Simplify.

4

(

3

+

1

)

4

c

−

q

2

d

Add

3

and

1

.

4

⋅

4

4

c

−

q

2

d

Simplify the denominator.

Tap for more steps...

4

⋅

4

8

c

d

−

q

2

d

Multiply

4

by

4

.

16

8

c

d

−

q

2

d

Multiply the numerator by the reciprocal of the denominator.

16

2

d

8

c

d

−

q

Multiply

16

2

d

8

c

d

−

q

.

Tap for more steps...

32

d

8

c

d

−

q

Answer:

4.75 or 4 3/4

Step-by-step explanation:

Simple, 9 1/8- 4 3/8 first you want to take away 1 from 9 and add 8/8 to 1/8 because 8/8 is 1 whole once you done this you want to do 8 9/8-4 3/8 and get 4 6/8 now simplify by 2 and get 4 3/4.

Answer:

x=142, y=-360. (142, -360).

Step-by-step explanation:

5x+2y=-10

3x+y=66

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

5x+2y=-10

-2(3x+y)=-2*66

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

5x+2y=-10

-6x-2y=-132

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

-x=-142

x=142

3(142)+y=66

426+y=66

y=66-426

y=-360

Answer:

1- 5x+2y+−2y=−10+−2y

5x=−2y−10

[tex]\frac{5}{5}[/tex]= [tex]\frac{-2y-10}{5}[/tex]

x= [tex]\frac{-2}{5}y-2[/tex]

2-  3x+y+−y=66+−y

3x=−y+66

[tex]\frac{3x}{3} = \frac{-y+66}{3}[/tex]

[tex]x=\frac{-1}{3}y+22[/tex]

Step-by-step explanation:

This is the answers :)

Answer:

28 days

Step-by-step explanation:

Hope this helps. Good Luck!!

The spider would reach the height of 74 cm on 24th February by the end of the day.

An expression in mathematics is a combination of terms both constants and variables.

Given is that a spider is climbing up a wall. During the daytime it climbs 5 cm, but then slips back 2 cm during the night.

The net distance covered by the spider in one day -

D{n} = 5 cm - 2 cm = 3cm

The spider would reach 74 cm up in -

{x} = 74/3

{x} = 24.7

This means that the spider would reach the height of 74 cm on 24th February by the end of the day.

Therefore, the spider would reach the height of 74 cm on 24th February by the end of the day.

To solve more questions on expressions, visit the link below -

https://brainly.com/question/27911936

#SPJ2

[tex] \frac{96}{38} \frac{25}{45} [/tex]

[tex] \frac{96}{38} \frac{25}{45} [/tex]

Answer:

5%

Step-by-step explanation:

2000/40000 = 0.05

All you do is divide both numbers and you'll get the decimal form which in this case is 0.05 which means 5%.

Answer:

5%

Step-by-step explanation:

2000/40000 x 100 = 5%

Answer:

3

Step-by-step explanation:

Answer:

The answer is  60 kg of a 42% alloy, we'd need 24 kg of 15% copper and 36 kg of 60%

Step-by-step explanation: