Stop at the ten thousands column - so it is equal to 12 ten thousands
Check: 12 x 10,000 = 120,000
1 hour = 60 minutes.
2 hours 20 minutes = 2 *60 + 20 = 120 + 20 = 140 minutes
Let's solve for x.<span><span>-------------------------------------------------
x−y</span>=<span>−3</span></span>------------------------------------------------
Step 1: Add y to both sides.<span><span><span>x−y</span>+y</span>=<span><span>−3</span>+y</span></span><span>x=<span>y−3</span></span>-------------------------------------------------
Answer:<span>-------------------------------------------------
x=<span>y−<span>3
-------------------------------------------------
and
-------------------------------------------------
</span></span></span>Let's solve for x.<span><span>x+<span>3y</span></span>=5</span>------------------------------------------------
Step 1: Add -3y to both sides.<span><span><span>x+<span>3y</span></span>+<span>−<span>3y</span></span></span>=<span>5+<span>−<span>3y</span></span></span></span><span>x=<span><span>−<span>3y</span></span>+5</span></span>-------------------------------------------------
Answer:<span>x=<span><span>−<span>3y</span></span>+<span>5</span></span></span>
Answer:
Roland is right, he can be 95% sure that average gas prices have gone up since the same time last year.
Step-by-step explanation:
Let μ be average gas price around Syracuse.
Then hypotheses are:
μ = $2.68
μ > $2.68
Then test statistic can be calculated as:
z=
where
- X is the Roland's calculated average gas prices of 50 gas stations ($2.74)
- M is the average average gas prices in the entire of Syracuse last year
- s is the standard deviation ($0.11)
Then z=
≈ 3.86
Since P-value of test statistic ≈ 0.00006 <0.05 (significance level), we can reject the null hypothesis.
Answer:
Domain (-4,6)
Range(5,0)
Step-by-step explanation:
