Move the decimal point 2 to the left
Answer is .26
f(x)=-3x^2-1
f(-2)= -3(-2)²-1=-3·4-1= - 13
Answer:
Step-by-step explanation:
∡x = v0t + 1/2 at²
∡x / v0t = 1/2 at²
2∡x / v0t =at²
a = 2∡x / v0t³
that's your answer:)
Answer:
m = 4√2
Step-by-step explanation:
This is a right angled isosceles triangle whose sides are in the ratio 1:1:√2.
So = 8 / √2
= 8 *√2 / 2
= 4√2
Answer: 2172
Step-by-step explanation:
Formula to find the sample size n , if the prior estimate of the population proportion(p) is known:
, where E= margin of error and z* = Critical z-value.
Let p be the population proportion of adults have consulted fortune tellers.
As per given , we have
p= 0.20
E= 0.02
From z-table , the z-value corresponding to 98% confidence interval = z*=2.33
Then, the required sample size will be :
Hence, the required sample size = 2172