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3 years ago

Find the common difference of the arithmetic sequence 1,-1, -3, ...

1 answer:

4 0

Answer:
-2

Explanation:
The common difference of a sequence is the difference between consecutive terms. To find it, we subtract two consecutive terms.

1, -1, -3

1 and -1 are consecutive terms.
-1-1=-2

Therefore, the common difference is -2.

We can also try the same thing with -3 and -1, since they are also consecutive terms.

-3-(-1)
=-3+1
=-2

I hope this helps! Please comment if you have any questions.

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You want to go to the skate park, and you have two options:

Tcecarenko [31]

Answer:

See Explanation

Step-by-step explanation:

Define the variables

Let the entry fee be c and the hourly rate be m

Let the number of hours be x and the total amount be y

Work to solve

For Sami's skate

$c = 6$ and $m = 2$

For Brad's skate

$c =10$ and $m = 1$

The equations

The equation is derived using: $y = mx + c$

For Sami's skate

$y = 2x + 6$

For Brad's skate

$y = x + 10$

When the cost are the same

To do this, we equate both expressions

i.e.

$y = y$

$2x + 6 = x + 10$

$2x -x = 10 - 6$

$x = 4$

i.e. the cost are the same at the 4th hour

What is the cost

Substitute 4 for x in any of the equations

$y = x + 10$

$y = 4 + 10$

$y = 14$

The cost is $14.00

3 0

3 years ago

Write in standard form. a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4

adoni [48]

Answer:

2 4 2 8 3 7 3 10 4 hope it will work

7 0

3 years ago

2x^2y term, constant, and coefficient pls help me pls

prohojiy [21]

Answer:

16.2

Step-by-step explanation:

because 3x2=6

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3 years ago

James wants to tile his floor using tiles in the shape of a trapezoid. To make

GenaCL600 [577]

The answer is A :)!!

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3 years ago

HELP PLS!!! IMPORTANT!

Cerrena [4.2K]

Answer:

#3: The number of pets that is the mode for the class is 1 because the people who have 1 pet appears the most.

explanation: the largest amount of people are the people who have 1 pet.

#4: The percent of students who have at least 3 pets is 25%.

explanation: 6 divided by 24 is 0.25 and and that converted to a percentage is 25%

#5: The median number of pets that students have is 1 pet.

explanation: the middle number of all the people in Yolanda's class is 1.

#6: The range of the number of pets is 9.

explanation: range is the largest number minus the smallest number

9 - 0 = 9

#7: #7 will be attached with this answer.

#8: There are 22 students in the class.

explanation: the added up number of students is 22.

#9: The mode value is 3 students.

explanation: the mode is the number that appears the most. 3 is the number that appears the most.

#10: The median number of concerts that students have attended is 2 concerts.

explanation: the middle number of all the numbers is 2.

#11: The concerts that the students in Mr. Ritter's class have attended in all is 72.

explanation: all the number of concerts attended added up is 72.

#12: The average (mean) number of concerts the students in Mr. Ritter's class has attended is 3 concerts.

explanation: all the concerts divided by the number of students were are is the mean.

72 / 22 is 3.27.

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3 years ago