Answer:
518
Step-by-step explanation:
since it has been 3 hours and he has traveled 222 miles divide that by 3 to get Miles Per Hour which is 74 now multiply 74(MPH) by 7(Hours) you're answer: 518
Z score = 66 - 76
---------- = - 1
10
from the tables of normal distribution this corresponds to 0.34-3 of the area under the normal curve
so reuired number od students = 0.3413 * 230 = 78
Answer:
Step-by-step explanation:
The solution is the coordinates of the point where the lines intersect: (3,5)
Answer:
6²
Step-by-step explanation:
Using the rule of exponents
⇔ 
, thus
= 
= 6²
2 triangle+square=23
square=60/triangle
2 triangle+60/triangle=23
2 triangle^2+60=23 triangle
2 triangle^2-23 triangle+60=0
solving quadratic equation we get
triangle=15/2 , 4
15/2 is not possible so triangle=4
square=15
