Answer:
im sry but i have no idea
Step-by-step explanation:
Answer:
40 passes
Step-by-step explanation:
we know that
Bobby catches 8 passes in 3 football games
so
using proportion
Find out how many passes does he catch in 15 games
![\frac{8}{3}=\frac{x}{15}\\\\x=8(15)/3\\\\x=40\ passes](https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B3%7D%3D%5Cfrac%7Bx%7D%7B15%7D%5C%5C%5C%5Cx%3D8%2815%29%2F3%5C%5C%5C%5Cx%3D40%5C%20passes)
Answer: D. A single number calculated from the sample that estimates a target population parameter is called a point estimator.
An interval estimator is a range of numbers that contain the target parameter with a high degree of confidence.
Step-by-step explanation:
When we evaluate an range of values for an unknown population parameter, then it is known as interval estimation .
A single number evaluated from the SAMPLE that estimates an unknown population parameter is known as a point estimator.
The general difference between point and interval estimator is the point estimator is a single value of target parameter while interval estimator is a range of numbers to estimate the values about the unknown population.
Answer: ![\bold{x=\dfrac{11}{21}}](https://tex.z-dn.net/?f=%5Cbold%7Bx%3D%5Cdfrac%7B11%7D%7B21%7D%7D)
<u>Step-by-step explanation:</u>
![\dfrac{2}{3}-\dfrac{4x+7}{2}=-9x+\dfrac{5}{6}\\\\(6)\dfrac{2}{3}-(6)\dfrac{4x+7}{2}=-9x(6)+(6)\dfrac{5}{6}\qquad \text{(multiplied by LCD) }\\\\4 - 12x-21=-54x+5\qquad \text{(simplified)}\\\\-12x - 17 = -54x + 5\qquad \text{(added like terms)}\\\\42x-17=5\qquad \text{(added 54x to both sides)}\\\\42x = 22\qquad \text{(added 17 to both sides)}\\\\x=\dfrac{22}{42}\qquad \text{(divided both sides by 42)}\\\\x=\dfrac{11}{21}\qquad \text{(reduced the fraction)}](https://tex.z-dn.net/?f=%5Cdfrac%7B2%7D%7B3%7D-%5Cdfrac%7B4x%2B7%7D%7B2%7D%3D-9x%2B%5Cdfrac%7B5%7D%7B6%7D%5C%5C%5C%5C%286%29%5Cdfrac%7B2%7D%7B3%7D-%286%29%5Cdfrac%7B4x%2B7%7D%7B2%7D%3D-9x%286%29%2B%286%29%5Cdfrac%7B5%7D%7B6%7D%5Cqquad%20%5Ctext%7B%28multiplied%20by%20LCD%29%20%7D%5C%5C%5C%5C4%20-%2012x-21%3D-54x%2B5%5Cqquad%20%5Ctext%7B%28simplified%29%7D%5C%5C%5C%5C-12x%20-%2017%20%3D%20-54x%20%2B%205%5Cqquad%20%5Ctext%7B%28added%20like%20terms%29%7D%5C%5C%5C%5C42x-17%3D5%5Cqquad%20%5Ctext%7B%28added%2054x%20to%20both%20sides%29%7D%5C%5C%5C%5C42x%20%3D%2022%5Cqquad%20%5Ctext%7B%28added%2017%20to%20both%20sides%29%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B22%7D%7B42%7D%5Cqquad%20%5Ctext%7B%28divided%20both%20sides%20by%2042%29%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B11%7D%7B21%7D%5Cqquad%20%5Ctext%7B%28reduced%20the%20fraction%29%7D)
NOTE: The sign between 4x and 7 is missing in the question you posted. I assumed it was 4x + 7 in order to solve the equation.