Answer:
37
Step-by-step explanation:
Margin of error = critical value × standard error
For 98% confidence, CV = 2.326 (from t table).
Standard error is σ / √n, where σ is the population standard deviation, and n is the sample size.
Plugging in:
5 = 2.326 × 13 / √n
n = 36.6
Rounding up, n = 37.
Y doesn't change so it stays 3.
x will be 0, because the average of 0 and -2 is -1
im assuming i just pick two angles cause i cant see the options? two 90 degree angles.
and my name is teagan too :D
1.) 75 x .62 = 46.5 I multiplied by .62 because the kph to mph ratio is 1:.62
2.) 20 x 1.6 = 32 I multiplied by 1.6 because that's how many km are in a mile.
Answer:
Let’s assume a,b,x real. Then all we require of y is y2 is real, so y
can be real or purely imaginary, but not an arbitrary complex number.
The hard question in these is always, do we need ±
? Here the answer is yes. It’s basically asking is there one solution or two, and in this problem we have two.
Solve for y
: x=a−2by2
Step-by-step explanation:
