Those two angles are congruent(corresponding), so we can set these equal to each other.
19x+3=21x-3
-2x=-6
x=3
Answer:
c:188.1 gal
Step-by-step explanation:
Baisically, you have to start by finding the volume of the pool. You multiply length*width*height(deepness).
3.8*5.5*1.2=25.08 ft^3
To convert from ft to gallons, we have to multiply by 7.5
25.08*7.5=188.1 gal
First we have to calculate how many years passed: 2015 - 1971 = 44 years.
So n = 44 and 8,5% = 0,085 so r = 1 + 0.085 = 1.085.
The starting population is 294,105 and the formula is:
y = 294,105 * r^n = 294,105 * 1.085^44 =
= 294,105 * 36.21666 = 10,651,502.85 ≈ 10,651,503
Answer: In 2015 there were 10,651,503 females participating in high school sports.
Answer: C. Distribute 3/4 over (x-8)
Step-by-step explanation:
To solve any(technically most, but still...) algebraic equation you must isolate the variable. In this case, the first step would either be to divide both sides of the equation by 3/4, or distribute 3/4 to x and -8, as you cannot modify the contents of the parenthesis without removing the 3/4.
Hope it helps and lmk if you further explanation <3 :)
Answer:
A statistic is said to be unbiased if the mean of its sampling distribution is equal to the true value of the parameter being estimated.
Step-by-step explanation:
A parameter is a number that describes the population.
A statistic is a number that describes a sample.
A statistic used to estimate a parameter is unbiased if the mean of its sampling distribution is exactly equal to the true value of the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.
A statistic is biased if its expected value is not equal to the parameter.
