Answer:
175<=12.5x+40
Step-by-step explanation:
She starts with 40 points already so you add in those 40 then since she gets 12.5 points per visit that is your x, so you set that as greater than or equal to 175
Answer:
To find the mean, you have to add all numbers together and divide them by the number of data points.
let me show what I mean:
The heights of the dogs are 600,470,170, 430,300.
Step-by-step explanation:
600+470+170+430+300.
1970.
Now we have to divide 1,970 by 5 ( because we are given 5 data points)
The mean is:
1970/5=394
Variance: First, arrange the data from least to greatest.
s2 = 27130
Standard Deviation: 164.71187
Answer: OPTION A
Step-by-step explanation:
We need to remember that Product of powers property, which states that:

Let's check the options:
A. For
you can apply the property mentioned before. Then:

(It is the equivalent expression)
B. Add the exponents:

(It is not the equivalent expression)
C. For
you can apply the property mentioned before. Then:

(It is not the equivalent expression)
D. We know that
and we maje the addition indicated in this option, we get:

(It is not the equivalent expression)
Answer: 1.9
Step-by-step explanation:
because you keep adding 1.9 to get your result
Answer is D, 2(4a + 7.)
A is equivalent to 4a + 24.
B is equivalent to 16a + 40.
C is equivalent to 8a + 32.
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