Answer:
Step-by-step explanation:
3x³ + x - 4 - (4x² + 2x - 5) = 3x³ + x - 4 - 4x² - 2x + 5
Now combine like terms
= 3x³ - 4x² + <u>x - 2x</u> <u>- 4 + 5</u>
= 3x³ - 4x² -x + 1
Answer:
The coefficient of variation is 72.66%
Step-by-step explanation:
Data : 3 , 5 , 12 , 3 , 2
We are given that The mean of the sample is 5.
Formula of standard deviation =
Substitute the values :
Coefficient of variation=
Hence The coefficient of variation is 72.66%
Dividing a whole number and an improper fraction seems tricky, but it just has one or two more steps than the normal process. First, convert the whole number "9" into a fraction by giving it a denominator of "1". It should look like 9/1. Now that both numbers are converted into like formats (improper fractions), you should have 9/1 divided by 5/3.
Second, flip 5/3 over into 3/5 - this is the "reciprocal". Now you have 9/1 divided by 3/5. It's just a matter of multiplying across the math sentence. Multiply the numerators (9x3) and the denominators (1 x 5). Your new fraction should be 27/5. This is your answer in the improper fraction format.
You can create other formats depending on the expected answer. For a mixed number, "divide your fraction UP" (27 divided by 5) which gives you 5 and 2/5. This can be further converted into 5.4 if you need your answer in decimal form.
Answer:
just try substituting t with the values given . the answer is B
