Answer:
The answer is 12.5cm
Step-by-step explanation:
cos 52= 7.7/AC
AC= 7.7/ cos 52
AC= 12.5
The answer is -4 hope that helps :)
4)
3x-2y=10
5x+y=4
We solve this system of equation by elimination method.
3x-2y=10
2(5x+y=4)
------------------------
13x=18
Answer: A) 13x=18
5)
slope-intercept form:
y=mx+b
y=f(x)
m=slope
b=y-intercept
1) we calculate the slope:
we choose any two points of this table:
For example: (2,2) and (3,4)
Given two points (x₁,y₁) and (x₂,y₂) the slope of the line that passes through these points will be:
m=(y₂-y₁)/(x₂-x₁)
In this case:
m=(4-2)/(3-2)=2
2) we compute "b";
we choose an any point of this talbe:
For example: (4,6), and we substitute "x" for "4" and "y" for "6" in the next equation:
y=2x+b
6=2(4)+b
b=6-8
b=-2
3) we build the function that it belong this table:
m=2
b=-2
f(x)=mx+b
f(x)=2x-2
Answer: B) f(x)=2x-2
Answer:
0.0958
Step-by-step explanation:
Percentage involved in accident = 8% = 0.08
Number of drives selected = 14
Probability that 3 or more who were involved in a car accident last year?
P(x>=3) = P(x=3) or P(x>3)
Similarly;
P(x>=3) = 1-P(0<= x <=2)
P(x>=3) = 1-P(0<= x <=2)
Using the binomial probability calculator :
Cummulative probability :
P(X >= x) = 0.09583481948
= 0.0958
