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musickatia [10]

3 years ago

7

Simplify negative 8 over 3 divided by negative 2 over 6

1 answer:

Art [367]3 years ago

5 0

Answer: The answer is 8

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7. Are the ordered pairs below an arithmetic sequence or geometric

DochEvi [55]

Answer:

8. Arithmetic Progression

9. $f(9) = 300$

Step-by-step explanation:

Given

$\{(1,55)\ (2, 45)\ (3, 35)\ (4, 25)\}$

Solving (8): Arithmetic or Geometric

We start by checking if it is arithmetic by checking for common difference (d).

$d = y_2 - y_1 = y_3 - y_2 = y_4 - y_3$

This gives:

$d = 45 - 55 = 35 - 45 = 25 - 35$

$d = -10 = -10 = -10$

$d=-10$

<em>Because the common difference is equal, then it is an arithmetic progression</em>

<em></em>

Solving (8):

$f(n) = f(1) + f(n-1)$

To find f(9), we substitute 9 for n

$f(9) = f(1) + f(9-1)$

$f(9) = f(1) + f(8)$

We need to solve for f(8); substitute 8 for n

$f(8) = f(1) + f(8 - 1)$

$f(8) = f(1) + f(7)$

We need to solve for f(7); substitute 7 for n

$f(7) = f(1) + f(7 - 1)$

$f(7) = f(1) + f(6)$

We need to solve for f(6); substitute 6 for n

$f(6) = f(1) + f(6 - 1)$

$f(6) = f(1) + f(5)$

We need to solve for f(5); substitute 6 for n

$f(5) = f(1) + f(5 - 1)$

$f(5) = f(1) + f(4)$

From the function, f(4) = 25 and f(1) = 55.

So:

$f(5)=55 + 25$

$f(5)=80$

$f(6) = f(1) + f(5)$

$f(6) = 55 + 80$

$f(6) = 135$

$f(7) = f(1) + f(6)$

$f(7) = 55 + 135$

$f(7) = 190$

$f(8) = f(1) + f(7)$

$f(8) = 55 + 190$

$f(8) = 245$

$f(9) = f(1) + f(8)$

$f(9) = 55 + 245$

$f(9) = 300$

8 0

3 years ago

Every spring the grade four students play the grade five students in softball. The graph shows their scores.

bezimeni [28]

Answer:

B

Step-by-step explanation:

3 0

3 years ago

Mai skated x miles, and Clare skated ⅗ farther than that. Write an expression for the distance Clare skated.

Eddi Din [679]

Answer:

Its either 8x/5 or 5x/8

im not sure sorry.

4 0

3 years ago

A subway train makes six stops of equal length during its 21 km run. The train is actually moving for 20 minutes of the trip. At

photoshop1234 [79]

Answer:

The subway train can stop for a maximum of 2.5 minutes on each stop.

Step-by-step explanation:

3 0

3 years ago

Let m=1/3 and n=4/7.

Dmitry [639]

=(9(1/3))^2+2+4/7
=(3^2)+2+4/7
=(9)+2+4/7
=11+4/7
=81/7

4 0

4 years ago