Answer:
-u+5
Step-by-step explanation:
plz mark as brainliest
Hey,here is the answer to ur question..!
1.BD=AE (given)
2. Ci Is the midpoint of BD and AE (given)
3. AC=EC (Cis the midpoint Of AE)
4. BC=DC (midpoint theorem)
5.angle ACB and angle ECD are vertical angles ( definition of vertical angles)
6. angle ACB=angle ECD (vertical angle theorem)
7.triangle ABC Is congruent to triangle EDC ( SSS criterion rule)
Hope this helps u....!!!
Answer:
x = -5
y = -4
Step-by-step explanation:
5x - 4y = -9
10x - 8y = -18
10x - 7y = -22
-y = 4
y = -4
Substitue y into any equation
5x - (-16) = -9
5x = -25
x = -5
Answer:
a)
here margin of error E = 0.07
for95% CI critical Z = 1.96
estimated proportion=p= 0.5000
required sample size n = p*(1-p)*(z/E)2= 196
b)
here margin of error E = 0.07
for95% CI critical Z = 1.96
estimated proportion=p= 0.8100
required sample size n = p*(1-p)*(z/E)2= 121
c)
d. No, a sample of students at the nearest college is a convenience sample, not a simple random sample. so it is very possible that the results would not be representative of the population of adults.
0.000701 in notation is 7.01 x 10^-4
The number has to be greater than 1 but less than 10. If the number is small then the exponent will be negative. 7.01 is less than 10 and greater than 1. In order to get the number you go to the right 4 times.
I hope this helped