What plus what equals 160
1 answer:
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Answer:
I think its D)
Step-by-step explanation:
7x−3y+2=0
Add -7x to both sides.
7x−3y+2+−7x=0+−7x
−3y+2=−7x
Add -2 to both sides.
−3y+2+−2=−7x+−2
−3y=−7x−2
Divide both sides by -3.
−3y /−3 = −7x−2 /−3
which equals d)
I also use this app to convert equations to slope-intercept and it showed me this
Answer:
At least 653 citizens need to be sampled.
Step-by-step explanation:
The following formula is used to compute the minimum sample size required to estimate the true proportion who are in favor of gun control legislation within 5% margin of error:
n≥ p×(1-p) × where
- n is the sample size
- p is the sample proportion of people who are in favor of gun control legislation (
- z is the corresponding z-score for 99% confidence level (2.575)
- ME is the margin of error in the estimation (5% or 0.05)
Putting numbers in the formula
n≥ 0.5625×0.4375 × ≈652.7
n needs to be<em> at least 653</em> to provide this equation.