75 +10n = 15n
75 = 5n
15 = n
Therefore 15 classes
The answer is the chi square distribution. In Statistics and
probability theory, the chi distribution is a continuous
probability distribution. The chi-square distribution is a distinct
case of the gamma distribution and is one of the most extensively
used probability distributions in inferential statistics for instance, in
construction of confidence intervals or in hypothesis testing.
Answer:
X=7
Step-by-step explanation:
STEP 1: Simplify both sides of the equation
7x + -10 + 2x =39 + 2x
(7x + 2x) + (-10) = 2x + 39 (combine like terms)
9x -10 = 2x + 39
step 2: Subtract 2x from both sides
9x -10 - 2x = 2x + 39 - 2x
7x - 10 =39
Step 3: Add 10 to both sides.
7x - 10 + 10 = 39 + 10
7x = 49
Step 4: Divide both sides by 7.
7x/ 7 = 49/7 <u> x=7</u>
<u>hope this helps!!</u>
2 time the tenth root of d to the seventh power
When powers are in fractions, the denominator is a root and the numerator is a power. "2 times" means that two will be multiplied to d after its exponents are solved; otherwise the statement would've been "the product of 2 and d to the seven tenths power."