Mathematics High School

A sequence is defined by f (0) = -4, f (n) = f(n − 1) – 2 for n > 1. What is a definition for the nth term of the sequence? OA)f (n) = -2-n for n > 0 OB)f (n) = -2 - 4n for n > 0 O C)f (n) = -4 – 2n for n > 0 OD)f (n) = -4 - n for n > 0​

Answers

Answer 1

Answer: C) f(n)= -4- 2 for n>0

Step-by-step explanation:

Related Questions

Need this ASAP pls help !

Answers

Start with which equations are written in function notation?
The only ones are the first and last, not the “y=“ ones.

Then look at the equations.
h(x) = x^2 would be a parabola, so the range wouldn’t be all real numbers. It’d only be non-negative numbers.
g(x) = 1/2 x + 3/2 would be a line. This has a range of all real numbers.
c jfjjfjfjfjnfnfjfjfjjf

The ratio of Tom's age to his nephew's age is 3:1 . The difference in their ages is 24 years.How old is Tom now?

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Answer:

the age of toms nephew is 8 years

witch expressions are equivalent to k/2?

2 answers
k - 2
2/k
1/2k
k divided by 2
k+k

Answers

Answer:

C and D

Step-by-step explanation:

[tex] \frac{k}{2} = \frac{1}{2} k = k \div 2[/tex]

Answer:

c and d

Step-by-step explanation:

yes thats the answer

Please help me solve this. Just number 16.

Answers

Answer:

Smaller angle = 70 degrees

Step-by-step explanation:

Supplementary angles = add up to 180 degrees

let x = bigger angle

smaller angle = (x/2) + 15

x + (x/2) + 15 = 180

x + 0.5x + 15 = 180

1.5x = 165

x = 110

180 - 110 = 70

or

(x/2) + 15 = (110/2) + 15 = 55 + 15 = 70

Which graph has a slope of Two-thirds?

Answers

Answer:

On the coordinate plane, a line with a positive slope passes through the points (0, negative 1) and (1, 1).

A line with a slope of 2/3 would go “up 2, right 3”.

By this I mean that if you have a point on the graph and then count “up 2, right 3”, you’ll end up back on the graph.

The equation for line a is shown. y=-2/3 x-4
line a and b are parallel, and the point (-2,1) lies on line b. write the equation for line b

Answers

Step-by-step explanation:

line a slope (x coefficient)= -2/3

Parallel lines have the same slope and will never intersect.

line b slope = -2/3

line equation =

y =mx + b

m = slope

y= -2/3 x + b

from the point given (-2,1)

x = -2

y = 1

1 = 4/3 + b

b = -1/3

b equation =

y = (-2/3)x - (1/3)

PLEASE HELP
The graph shows two points from the table representing a proportional relationship.


A 2-column table with 3 rows. Column 1 is labeled Minutes (x) with entries 1, 2, 3. Column 2 is labeled Gallons (y) with entries 400, 800, 1200.


Which point corresponds to the last entry in the table?

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Answer: it equals A

Step-by-step explanation:

Find X+Y
Geometry 9th

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Answer:

x = 71 and y = 45

Step-by-step explanation:

X is 71 and y is 45.

Brainlist for correct answer and 25 points for answering! Find the equation of the linear function represented by the table below in slope-intercept form.

Answers

Answer:

y=-5x+1

Step-by-step explanation:

hope it helps you

Huilan is 9 years younger than Thomas. The sum of their ages is 85. What is Thomas's age?

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Answer:

Step-by-step explanation:

                                                                                                                        thomas age is 47

Thomas is 47 and Hulian is 38.

Pls help I’ll give you 35 points

Answers

Answer:

b=21

Step-by-step explanation:

P=2(a+b)

54=2(6+b)

54=12+2b

2b+12=54

2b=54-12

2b=42

b=21

6*21 (area)=126

I hope I helped!

How to verify my answer:

P=2(6+21

P=(12+42)

P=54

AHA! So my answer is correct!

Hope I helped!

Solve 2(x+ 1) = 2x + 2

Answers

Answer:

2(x+1)

Step-by-step explanation:

I think it's work.

rationalize the expression

√77/11√33​

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Answer:

990

Step-by-step explanation:

99+88+77+66+55+44+33+22+11+11+22+33+44+55+66+77+88+99=990

PLS ANSWER IN IMAGE BELOW!!

Answers

Answer:

y=4

Step-by-step explanation:

8y+1=6y+9

8y-6y=9-1

2y=8

y=4

A sum is Rs x. If 2÷3 parts of the sum is Rs 20, find the sum.​

Answers

Answer:

30

Step-by-step explanation:

2/3*x=20

2x=20*3

x=60/2

x=30

Light travels about 3 x 10^5 metres per second. Find the time it takes to travel 1 metre. Give your answer in standard form.

Answers

Answer:

t=3.3*[tex]10^{-6}[/tex]

Step-by-step explanation:

t=[tex]\frac{S}{v}[/tex]

As

S=1m

v=3*[tex]10^{5}[/tex]ms^-1

t=[tex]\frac{1}{3*10^{5} }[/tex]

t=3.3*[tex]10^{-6}[/tex]

Answer:  According to the universe in which your light only moves at 3x10^5 meters/sec, it would take 3.333x10^-6 seconds to go 1 meter.  Where I live (Earth in the Milky Way Galaxy), light travels 3x10^8 m/s.  It only requires 3.33x10^-9 second.  So there . . .

Step-by-step explanation:

The speed of light is in units of meters/sec.   If it is 3x10^5 meters/sec, we can also write the inverse:

1 sec/3x10^5 meters  [It takes 1 sec to go 3x10^5 meters]

Do the division to find seconds per 1 meter:  3.333x10^-6 seconds.

-------

For Milky Way inhabitants, the division is 1 sec/3x10^8 meters, or 3.33x10^-9 second.  Time flies for them.

| 7x-2 | +3 = -1 solve for x

Answers

Answer:

x = -2/7 or

x = 6/7

Step-by-step explanation:

|7x-2| + 3 = -1  subtract 3 from both sides

|7x-2| = -4 now there are two probabilities

7x-2 = -4 or

7x-2 = 4 if first probability the value of x would be:

7x-2 = -4 add 2 to both sides

7x = -2 divide both sides by 7

x = -2/7 for the second probability the value of x would be:

7x-2 = 4 add 2 to both sides

7x = 6 divide both sides by 7

x = 6/7



Is Beryllium a gas, solid, or liquid? *

Answers

Answer:

solid

Step-by-step explanation:

solid..... ......!!!!!!!!

Answer:

beryllium is a solid substance

Step-by-step explanation:

beryllium solid at room temperature

according to the stimulation, what is the probability that at least one of the next five dogs he sees is a German Shepard ?

Answers

Answer:

0.6

Step-by-step explanation:

There is 12 boxes that has 6, 5 or both out of 20 boxes.

[tex] \frac{12}{20} = 0.6[/tex]

find the volume of a rectangular prism if the length is 4x, the width is 5x, and the height is x^2+x+2. Use the formula V=lxwxh to find the volume

Answers

Answer:

Step-by-step explanation:

The volume is [tex] V=l\times w \times h[tex]

So

[tex]V=4x \cdot 5x\cdot (x^2+x+2)\\=20x^2\cdot (x^2+x+2)\\=20x^4+20x^3+40x^2.[/tex]

Work these out for me

Answers

There should at least be a PLEASE

I need help with this problem

Answers

Answer:

x^3/14

Step-by-step explanation:

When an exponent is raised to an exponent, you multiply the exponents. Therefore, the answer is x^2/7 * 3/4.

Which of the following is written in correct scientific notation?
-4x10²
2.1 x 100
39 x 10
-0.3x10


please help i have to turn this in in the morning

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-4 × 10² is written in correct scientific notation.

is -15/6 a integer?

Answers

Answer:

No its not, integers are any number that is whole, without decimals

-15/6 is -2.5

Since integers are positive and negative whole numbers, -2.5 is not an integer.

Therefore -15/6 is not an integer.

Find each angle. Separate your awnser with a comma. For an example 18, 72

Answers

(5x+7) + (8x-21) = 90
13x-14 = 90
13x= 104
X=8
The angle measurements are 47, and 43

HURRY PLEASE I NEED IT ASAP 15 POINTSS!!!!
Which pair shows equivalent expressions?
A. 2x10= -2(x-5)
B. -2(x+5)= 2x-10
C. -2x-10= -2(x=5)
D. -2(x-5)=-2x-10

Answers

D shows equivalent expressions

Answer:

Please the answer is not inside

Because it can't be D

Is 9.2 a rational number or irrational explain with steps please

Answers

Answer:

Step-by-step explanation:

It is rational because it doesn't have infinite decimals

6 + 4(19 – 15)
Evaluate

Answers

[tex]\large \mathfrak{Solution : }[/tex]

6 + 4(19 - 15)

6 + 4(4)

6 + 16

22

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

6 + 4 (19 - 15)

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex] \mathfrak{6 + 4 ( 19 - 15 )}[/tex]

Subtract 15 from 19 to get 4.

[tex] \mathfrak{6+4\times 4 }[/tex]

Multiply 4 and 4 to get 16.

[tex] \mathfrak{6+16 }[/tex]

Add 6 and 16 to get 22.

[tex] = \large\boxed{ \boxed{ \bf22 }}[/tex]

2y+-1y+-1y+3=-13 solve for y

Answers

Answer:

There are no values of   y

that make the equation true.

No solution

A national survey asked people, "How often do you eat out for dinner, instead of
at home?" The frequencies were as follows. Complete parts (a) through (g)

Answers

A relative frequency table is used to display the proportion of variables, in a tabular form.

3.1% of the respondents responds always32.5% of the respondents responds never or rarely.

(a) Draw the Relative Frequency

To do this, we simply divide the frequency of each response by the total frequency.

The total frequency is:

[tex]Total = 326 + 304 + 992 + 257 + 61[/tex]

[tex]Total = 1940[/tex]

So, the calculation of the relative frequency table is as follows:

[tex]Never = \frac{326}{1940}=0.168=16.8\%[/tex]

[tex]Rarely = \frac{304}{1940}=0.157=15.7\%[/tex]

[tex]Sometimes = \frac{992}{1940}=0.511=51.1\%[/tex]

[tex]Most\ times = \frac{257}{1940}=0.132=13.2\%[/tex]

[tex]Always = \frac{61}{1940}=0.031=3.1\%[/tex]

The relative frequency table is:

[tex]\left[\begin{array}{ccc}{Response}&{Frequency}&{Relative\ Frequency}\\Never&326&16.8\%\\Rarely&304&15.7\%&Sometimes&992&51.1\%&Most\ Times&257&13.2\%&Always&61&3.1\%\end{array}\right][/tex]

(b) Percentage that responds always.

From the above calculation, we have:

[tex]Always = 3.1\%[/tex]

Hence, 3.1% responds always

(c) Percentage that responds never or rarely.

From the above calculation, we have:

[tex]Never = 16.8\%[/tex]

[tex]Rarely =15.7\%[/tex]

So, we have:

[tex]Never\ or\ Rarely = Never + Rarely[/tex]

[tex]Never\ or\ Rarely = 16.8\%+ 15.7\%[/tex]

[tex]Never\ or\ Rarely = 32.5\%[/tex]

Hence, 32.5% responds never or rarely.

(d) The frequency bar graph

To do this, we plot the response against the frequency

See attachment for bar graph

Read more about relative frequency table at:

https://brainly.com/question/11875948

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