Answer:
0.9544
Step-by-step explanation:
We are given that mean=18 and standard deviation=1 and we have to find P(16<X<20).
P(16<X<20)=P(z1<Z<z2)
z1=(x1-mean)/standard deviation
z1=(16-18)/1=-2
z2=(x2-mean)/standard deviation
z2=(20-18)/1=2
P(16<X<20)=P(z1<Z<z2)=P(-2<Z<2)
P(16<X<20)=P(-2<Z<0)+P(0<Z<2)
P(16<X<20)=0.4772+0.4772=0.9544
The probability that the height of a tree is between 16 and 20 feet is 95.44%
I solved the second equation and it’s zero, I’m not really sure how to help with the top on tho. I am really sorry :/
X=5
90°-50°=40°
5x+15=40°
5x=25°
x=5
y = 9 because 9 over 3 simplified is 3 and 3 plus 6 equals 9
Answer:
Your answer would require a 7 in the hundreds place
Step-by-step explanation:
