The average rate of change formula is
f(b) - f(a)
arc = ----------------
b-a

Here, a= -10 and b = 10

(10)^2 + 9(10) + 18 - [ (-10)^2 + 9(-10) + 18]
Here arc = --------------------------------------------------------------
10 - (-10)

10^2 and -(-10)^2 cancel. 18 - 18 cancel.

90 - (-90) 180
This leaves us with arc = ----------------- = ------------- = 9 (answer)
20 20

7 0

3 years ago

The mode of the following data is 5 ? 0, 2, 2, 5, 2, 5, 0

MissTica

Answer:

The answer is 2.

Step-by-step explanation:

2 appears three times while the others appear only twice

3 0

3 years ago

A fruit stand has to decide what to charge for their produce. They need \$10$10 for 44 apples and 44 oranges. They also need \$1

KatRina [158]

Answer:

We can't find a unique price for an apple and an orange.

Step-by-step explanation:

Suppose, the price of an apple is $x$ and the price of an orange is $y$

They need $10 for 4 apples and 4 oranges. So, the first equation will be.......

$4x+4y=10 ........................................(1)$

They also need $15 for 6 apples and 6 oranges. So, the second equation will be........

$6x+6y= 15 ........................................(2)$

Dividing equation (1) by 2 on both sides : $2x+2y= 5$

Dividing equation (2) by 3 on both sides : $2x+2y=5$

So, we can see that both equation (1) and (2) are actually same. That means, we will not get any unique solution for $x$ and $y$ here. Both $x$ and $y$ have "infinitely many solutions".

Thus, we can't find a unique price for an apple and an orange.

4 0

3 years ago

The following equation system lacks solutions when b ≠ −c

aev [14]

Jsjndkdndndjdnndndbd

5 0

2 years ago

Name 2 decimals whose difference is 0.4?​

Name 2 decimals whose difference is 0.4?