Mathematics High School

What is the explicit formula for the sequence 3, 7,
11, 15, 19, ...?
an = 2n +1
an = 2n-1
an = 4n +1
O an=40-1
DONE

Answers

Answer 1

Answer:

an = 4n - 1

a1 = 3

a2 = 7 = 3 + 4

a3 = 11 = 3 + 4.2

a4 = 15 = 3 + 4.3

a5 = 19 = 3 + 4.5

.....

=> this is a arithmetic with a1 = 3 and d = 4

=> an = 3 + 4(n - 1) = 4n - 1

Related Questions

yo does addiction "run in the family"? i really want to know because it does in mine and im kinda freakin out

Answers

Answer:

Indeed yes homie.

Step-by-step explanation:

Please help me with math :C

Answers

Answer:

19 feet

Step-by-step explanation:

first, identify which is length and which is width. length is always longer than the width.

in order to do so, we need the measures in the same units, so let's convert . 12 yards to feet and 204 inches to feet:

there are 3 feed in a yard, so let's multiply 12 by 3:

12 • 3 = 36 feet

there are 12 inches in 1 foot, so let's divide 204 by 12

204 ÷ 12 = 17 feet

which is longer? 36 feet! so that's the length

finally, subtract the width(17 ft) from the length (36 ft)

36 - 17 = 19ft

Simplify 1 -3(4x - 8)

Answers

Answer:

25 - 12x

Step-by-step explanation:

1 - 3(4x - 8)

1 - 12x + 24

25 - 12x

Insta: 25k_kem

Answer:

[tex]1 - 3(4x - 8) \\ = 1 - 12x + 24 \\ = - 12x + 25 \\ - 12x = - 25 \\ x = \frac{25}{12} \\ = 2.08[/tex]

help me please!
what goes in the box?

Answers

Answer:

Answer:

-20/10

y=-20 x=10

Answer:-36/-6=-6

Step-by-step explanation:

Which equation best represents the line? (4 points)

Answers

what line....??????????
we need to know what the line is

Which set of measurements could be the side lengths of a right triangle?
A. {3 in., 5 in., 7 in.}
B. {6 in., 9 in., 12 in.}
C. {8 in., 15 in., 17 in.}
D. {10 in., 20 in., 30 in.}

Answers

Answer:

D

Step-by-step explanation:

you simply add the 2 smaller sides, and if their sum equals the bigger side, its correct!

what is perimeter of the figure 115.14cm​

Answers

Answer:

115.14 x 4 = 460.56 cm

Step-by-step explanation:

=
Solve for x.
18+x=y
x = 0
?

Answers

18

have a nice day!!!

Answer:

The answer is 18

Step-by-step explanation:

18 + x really means 18 + 0, because x is equal to 0

and if 18 + x = y, it means 18 + 0 = y,

so y is equal to 18

hope this helped!

HELPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Length = 6 inches

6 inches it in the picture

a plywood plank measures 1cm x 8cm x 90cm and it weighs 396g what is the volume

Answers

1 x 8 x 90 = 720cm^3

please help, needed to graduate!!

Answers

Answer:

its b

Step-by-step explanation:

i just did that question last period

Guided Practice


Find the range of the function rule y=5x−2 for the domain.

{−1/2, 1/4, 2/5}

A.
{−1/2, 3 1/4, 4}

B.
{3/10, 9/20, 12/25}

C.
{− 4 1/2, −3/4, 0}

Answers

Answer:

C.

{− 4 1/2, −3/4, 0}

Step-by-step explanation:

domain

-1/2;1/4; 2/5

range

-5 1/2; (5/4-2);0

{-1/2, 1/4, 2/5}

take the derivative of the equation 4 times. f 4 (x)=0.

C

Step-by-step explanation:

if you put in the values (-1/2, 1/4, 2/5) in the function, it gives the answers in option C

solve x best aw gets brain​

Answers

you would equal them both to each other to find the answer of x=32

Answer:

x=32

Step-by-step explanation:

The explanation is in the picture. Whenever you want to check your answer plug that number in.

Do these ratios form a proportion? 34¢ for every 44 units 17¢ for every 22 units

Answers

Yes bc 22 times 2 = 44 and 17 times 2 =34

Please answer 1 and 2

Answers

Answer:

Colleen pays 8 cents morePaulo read 2 more nonfiction books

Step-by-step explanation:

Q2

Colleen pays 7% tax:

$20*0.07 = $1.4

Brad pays 6% tax:

$22*0.06 = $1.32

The difference is:

$1.4 - $1.32 = $0.08

Colleen pays 8 cents more

Q3

Paulo read nonfiction books:

35% of 40 books = 40*0.35 = 14 books

Paulo read 14 - 12 = 2 more nonfiction books

Karen runs 6 miles in 44 minutes. At the same rate, how many minutes would she take to run 9 miles?

Answers

Answer:

the answer would be 66 minutes

Answer:

66 minutes was correct for me

Step-by-step explanation:

math

yao ming is 7 feet 6 inches tall.
how many inches tall is yao ming
A.6
B.76
C.84
D.90

Answers

Answer:

90

Step-by-step explanation:

There are 12 inches in a foot.

So you will take the 7 feet and multiply it by 12

This gives you 84 inches

You then take the 6 inches over the 7 feet and add to the 84 inches

Thus you get 90 inches.

Answer: First off, tall guy. Second, the answer is 90, or D.

Step-by-step explanation:

there are 12 inches in a foot. Take the 12 and multiply it by 7. then add the 6 remaining inches to the 84.

If you don’t know the answer pls don’t reply but if you do please tell me thank you.

Answers

Answer:

the answer will be B or C hope that helps

Step-by-step explanation:

the answer will be B or C hope that helps

Answer:

A) 12

Step-by-step explanation:

3/2=x/8

cross multiply

2x=24

x=12

what is the area of 17.3 feet , 13.4 feet and 10.7 feet

Answers

Answer:

2480.475

Step-by-step explanation:

just do the length times width times the height

Megan used a 30% off coupon to purchase a sweater. If she saved $14.40, what was the original price of the sweater?

Answers

Answer: 18.72

Step-by-step explanation:

14.40*1.3

Answer: 48$ was the original price of the sweater.

Step-by-step explanation:To find this answer, I divided the coupon discount by the discounted price (14.4) and got 48.00, to double check, I then multiplied the number by the discount number and got 14.4

Emily is buying a board game that is on sale. The regular price of the board game is $24.50,
but the store is offering a $9 discount. Emily wants to know the sale price of the board game.

Answers

Answer:

the sale price of the game is $15.50

Step-by-step explanation:

$24.50-$9=$15.50

Answer:

sale price is 15.50

Step-by-step explanation:

I did the I-ready already

The expression is equivalent to . What is the value of n?

Answers

Answer:

?

Step-by-step explanation:

A rectangular plant holder is 8 inches long 7 1/2 inches wide and 5 inches high. How much potting soil can the planter hold

Answers

Answer:

[tex]300[/tex]

Step-by-step explanation:

[tex]8 \times 7 \frac{1}{2} \times 5 \times = 300[/tex]

The rectangular plant can hold the volume of potting soil is 300 cubic inches.

What is a cuboid?

A cuboid is a three-dimensional shape in which all sides are rectangles. A cuboid has 6 faces, 8 vertices, and 12 edges. All the angles formed at the vertices of a cuboid are right angles. The opposite edges are parallel to each other.

For the given situation,

The rectangular plant holder is in the shape cuboid.

Length of the rectangular plant,l = 8 inches

Width of the rectangular plant,w = 7 1/2 = 15/2 inches

Height of the rectangular plant,h = 5 inches

The formula of volume of cuboid is

[tex]V=lwh[/tex]

⇒ [tex]V= (8)(\frac{15}{2} )(5)[/tex]

⇒ [tex]V=300[/tex]

Hence we can conclude that the rectangular plant can hold the volume of potting soil is 300 cubic inches.

Learn more about cuboid here

https://brainly.com/question/46030

#SPJ2

Which expression is equivalent to x-3x-(-5x)?

A. -9x B. -7x C. 2x D. 3x
HELP!!!! SHOW YOUR WORK WILL GIVE BRAINLIEST

Answers

Answer:

D

Step-by-step explanation:

x-3x-(-5x)=-2x+5x=3x

Answer:

D

Step-by-step explanation:

[tex]x-3x-(-5x)[/tex]

it will be easier to solve the equation in sections:

[tex]x-3x[/tex]

[tex]-2x[/tex]

now deal with the other part

[tex]-(-5x)[/tex]

a negative multiplied by a negative equals a positive so:

[tex]+5x[/tex]

now putting the parts together:

[tex]-2x+5x[/tex]

[tex]3x[/tex], therefore the answer is d: [tex]3x[/tex]

Expressions that simlify to the same expression are called

Answers

Answer:

Eqivelent expressions

Step-by-step explanation:

also dis

i really don’t understand this and i need help so if you can pls help

Answers

Answer:

1537500

Step-by-step explanation:

it should be that. all you do is multiply 615000 by 2.5

solve 3-²
I need work shown​

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{Equation: }\bold{3^{-2}}[/tex]

[tex]\large\text{Lets convert }\bold{3^{-2}}\large\text{ into }\bold{3^2}\large\text{ temporarily...}[/tex]

[tex]\large\text{Equation:} \bold{\dfrac{1}{3^2}}\\\\\bold{= \dfrac{1}{3\times3}}\\\\\bold{3\times3\rightarrow9\leftarrow\ solving\ for\ your\ DENOMINATOR\ (bottom\ number)}\\\\\bold{= \dfrac{1}{9}}\\\\\boxed{\boxed{\large\text{Answer: }\bold{\dfrac{1}{9}}}}\huge\checkmark[/tex]

[tex]\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

A school committee consists of 4 girls and 6 boys. How many girls should be added to the committee so that the probability of choosing a student from the committee at random and choosing a girl is 70%?

Answers

An important fact that would help you with this is knowing that
70% = 3/4


Enter a number.
The measure of angle 7 is ___°
​

Answers

Answer:

151 ig

Step-by-step explanation:

vertical angles are equall

Answer:

151

Step-by-step explanation:

Please help!! Help.

Answers

Step-by-step explanation:

1. Cosine

2. Relationship is Cos = adj/hyp

3. x is 14

4. The hypotenuse of the triangle is 14cm long

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