what is the 9th term in the sequence -1, 4, -9, 16, -25,...?​

Answers

Answer 1

Answer:

-81

Step-by-step explanation:

looks like they're doing perfect squares inversed..

so it'd go from -1,4,-9,16,-25,36,-49,64,-81

Answer 2
The answer above is correct my dude!

Related Questions

Factor each of the following polynomials completely
1. 4x + 8
2.9x² - 25
3.x² + 4x + 4​

Answers

Answer:

ok:

Step-by-step explanation:

1. 4(x+2)

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

3. [tex](x+2)^2[/tex]

Answer:

1. 4(x+2)

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

3. (x+2)(x+2)

Step-by-step explanation:

One math student, John, can solve 6 math problems in 20 minutes while another student, Juaquine, can solve the same 6 math problems at a rate of 1 problem per 4 minutes. Who works faster?
1.John
2.Juaquine

Answers

Answer:

John

Step-by-step explanation:

6/20=0.3

1/4=0.25

Juaquine is solving problems at a faster rate as compared to John.

What is the rate?

A rate is a type of ratio that compares two values with distinct units. A rate is expressed as a fraction.

As per the question, we can compare their rates of problem-solving by calculating the number of problems they can solve per minute.

For John, this is 6 problems / 20 minutes = 0.3 problems per minute.

For Juaquine, this is 6 problems / (4 minutes/problem) = 1.5 problems per minute.

Since Juaquine can solve 1.5 problems per minute compared to John's 0.3 problems per minute, Juaquine is solving problems at a faster rate.

Hence, Juaquine works faster as compared to John.

To learn more about the rate click here :

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if I hit myself and it hurts am I weak or am I strong
A weak
B strong
C dumb
D mentally weak

Answers

Answer:

b

Step-by-step explanation:

Answer:

C and A

Step-by-step explanation:

please help

..dffdfd

Answers

Answer:

4 and 15

Step-by-step explanation:

Math mafff math maff

Answers

Answer:

Figure A

Step-by-step explanation:

It just moves position and nothing else it does´t rotate or anything.

Definition of translation in math is: In Geometry, "Translation" simply means Moving ... ... without rotating, resizing or anything else, just moving.

Hopefully that is helpful to you. Have a wonderful day.

Answer:

hi

Step-by-step explanation:

How is measuring an angle similar to and different from measuring a line segment?

Answers

Answer:

Line planes are flat, but angles are at an angle.

Step-by-step explanation:

Dividing by 2 always produces a number less than the original number

Answers

Yes, this is true. A fraction, decimal, any number, will decrease if divided by two.

Dividing the number by 2 gives half of the number which is less than the original number.

Given that,
To specify dividing by 2 always produces a number less than the original number.

What is a number system?

A number system is described as a technique of composing to represent digits. It is the mathematical inscription for describing the numbers of a given set by using numbers or other characters in a uniform method. It delivers a special presentation of every digit and describes the arithmetic structure.

Dividing the number by 2 gives half of the number which is less than the original number.
Let the number be x,
Dividing the number by 2
Gives, x / 2 = 0.5 * x
Imply,
Dividing the number by 2 gives half of the number which is less than the original number.

Thus, dividing the number by 2 gives half of the number which is less than the original number.

Learn more about the number system here:

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plz help
What is the solution set for the inequality

2x + 5 ≥ 15

Answers

Answer:

[tex]x\geq 5[/tex]

Step-by-step explanation:

Answer:

X [tex]\geq[/tex] 5

(-8.9)
how do you do this Coordinate plane?

Answers

Answer:

On the right lower corner on the line that is up and down should be on -8 and the left to right should be on positive 9

Step-by-step explanation:

write the equation of the line through the points: (5,-3) & (4,0) Part A In point slope form: A: y-5=3(x=3) B: y+5=(-1/3)(x-3) C: y+3=-3(x-5) D: y-3=(1/3)(x+5)

Answers

Answer:

y+3= −3(x−5)

Step-by-step explanation:

random characters ahhajsbsbsllaannxx

(Please help) What is the inverse of the function f(x)=x+3?

H(x)= 1/3x + 3

H(x)= 1/3x -3

H(x)= x - 3

H(x)= x + 3

Answers

The correct answer would be 3. H(x)=x-3

Could someone help me with this. Than u
Also if u can put it step by step how u do it.

Answers

Answer:

X=3,-3

Step-by-step explanation:

What are the Slope and Equation of the graph?

Answers

Answer:

Slope= -3

Equation: y=-3x-44

Please help ASAP please I’ll mark as brainlister

Answers

Problems

The bottom of the red figure should be long; similar to the top of the blue figure.

The top of the red figure should be the same as the bottom of the blue figure.

Red are: (1, -1), (4, -1), (1, -5), (3, -5), (2, -2), (2, -4), (3, -4), (4, -2), (4, -2)

red points should be:

(1, -1), (3, -1), (1, -5), (4, -5),  (2, -2), (2, -4), (4, -4), (3, -2),  (3, -2),

4) f(x) = 2x^5+4x^4+11x^3+22x²+12x+24; -2

please show the steps on how to find the roots

Answers

Answer:

Step-by-step explanation:

f(x) = 2x^4(x + 2) + 11x^2(x + 2) + 12(x + 2)

f(x) = (x+2) [2x^4 + 11x^2 + 12]

f(x) = (x + 2)(2x^2 + 3)(x^2 + 4)

Kaelyn has 14 coins that have a value of $1.20 she only has dimes and nickels how many nickels does kaelyn have ?

Answers

10 dimes and 4 nickels.
10 dimes= 1 dollar
4 nickels= 20 cent

How many tens do you see?4.There are 4 tens and how many ones?0.4 tens = 0 ones

Answers

Ik give u the answer rn wha grade u in

which of the lines below is parallel to y = 5x + 7 ?

Answers

Any line with a slope of 5 is parallel, because parallel lines have the same slope.

What is the slope of the line that goes through the points (1,-2) and (3,6)?

A.) -4


B.) 2


C.) 4


D.) 1

Answers

Answer:

(C).  4

Step-by-step explanation:

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}\\\\\left(x_1,\:y_1\right)=\left(1,\:-2\right),\:\\\left(x_2,\:y_2\right)=\left(3,\:6\right)\\\\m=\frac{6-\left(-2\right)}{3-1}\\\\m = \frac{6+2}{3-1}\\ \\m = \frac{8}{2} \\\\Simplify\\\\Slope = m = 4[/tex]

(1 point) The linear function y=3x+30 models the average cost of a haircut in a certain city, where y, is the average price of a haircut x years after 2000. Find the slope for the model. Then describe what this means in terms of the rate of change in the average cost of a haircut over time.

Answers

Answer:

3 is the slope

Step-by-step explanation:

Mathematically, a linear function can be represented in the form;

y = mx + c

where m represents the slope and c is the y-intercept of the function.

In the equation given in the question above;

The slope of the equation is 3

What this means is that, the average rate of change between two points in the plot of the linear function is 3

Mathematically speaking, we mean that given two years and their corresponding average haircut prices, then the average rate of change between these two years on the plot is 3

what is 1 + 1 (just doing this for points)

Answers

Answer:

2

Step-by-step explanation:

1+1 = 2

(7 + 3i) - (2 + 3i) =
A. -5
B. 5
C. 5-6 i

Answers

B. 5

Remove the parentheses
7+3i-2-3i
Since two opposites add up to zero, remove them form the expression
7-2
Subtract the numbers
5

Ricky and James sold beef for a school fundraiser. Ricky sold 52 pounds and James sold 21 pounds. If their total combined sales were $1,168, how much does each pound of beef cost?

A. 16.00
B. 17.50
C. 13.50
D. 17.00

Answers

The answer would be A bc you add 52+21 which = 73 and then divide the $1,168 by 73 which = 16

YOOOOOOOO I FINALLY WAS ABLE TO GET REGISTERED

Answers

Answer:

Ty for the free points lol

The surf instructor has an initial fee of $12 and charges $8 per hour for lessons, which is represented by the equation y = 8x + 12, where x is the number of hours and y is the total cost. The instructor gives 32 hours of lessons a month to Sandra and 24 hours of lessons a month to Bela. What is the total amount the instructor makes in a month?


Sandra: y = 8 (32) + 12. y = 256 + 12. y = 268. The instructor receives 268 dollars a month from Sandra.

The instructor makes $_472_ a month.

Answers

Answer: 472$

Step-by-step explanation:

Mr. Morgan ingested $20,000 dollars in an account earning 4.5% annual interest. How many years would it take for him to earn $5,400 in simple interest?

I know the answer is 6 but I just don’t know HOW

Answers

Answer:

6

Step-by-step explanation:

−x+y=−5
What is the value of the x-intercept?

Answers

Answer: x - intercepts : (5,0)
y -intercepts : (0,-5)

which inequality is true for all real numbers? Check all that apply.
1. a-b < a+b
2. ac ≥ bc
3. if a ≥ b, then a+c ≥ b+c
4. if c > d, then a-c < a-d
5. if a < b, then a < b+c

Answers

Answer:

The answer is 1, i.e a-b < a+b

Its C: If a ≥ b, then a + c ≥ b + c

and D: If c > d, then a– c < a – d

If I have $100 dollars and spend $99.99 dollars, how much money do I have left?

Answers

Answer:

You have $00.01

Step-by-step explanation:

100-99.99=0.01

Answer:

A cent.

Step-by-step explanation:

100 - 99.99 = 0.01

You would have $0.01, or a cent, left.

Hope this helps.

14. Jorge's brother is 4 less than 3 times his age. The sum of their ages is
24. How old is Jorge's brother? *
A 6 years old
B. 12 years old
C. 7 years old
O D. 17 years old

Answers

D. 17 years olddddddddddd

17 years old!!! Easyyy
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