Answer:
73.2sq.in
Step-by-step explanation:
Area of the triangle = 1/2 * base * height
Get the height using the pythagras theorem
h^2 = 13^2 - (13/2)^2
h^2 = 169 - (6.5)^2
h^2 = 169 - 42.25
h = 11.26in
Area of the triangle = 1/2 * 13 * 11.26
Area of the triangle = 6.5 * 11.26
Area of the triangle = 73.2sq.in
Hence the area of the triangle to nearest tenth is 73.2sq.in
Answer:
X= 7/5
Step-by-step explanation:
Let's solve your equation step-by-step.
12x−15=6−3x
Step 1: Simplify both sides of the equation.
12x−15=6−3x
12x+−15=6+−3x
12x−15=−3x+6
Step 2: Add 3x to both sides.
12x−15+3x=−3x+6+3x
15x−15=6
Step 3: Add 15 to both sides.
15x−15+15=6+15
15x=21
Step 4: Divide both sides by 15.
15x
/15
=
21
/15
X= 7/5
You set it up as a y=mx+b problem 150=55x+40 then you subtract 40 from 150 making 110=55x so x=2
Answer:
10
Step-by-step explanation:
since it’s 1/4 1 out of the four is 2.5 so just multiply by four
Answer: e) 16.17
Step-by-step explanation:
In Binomial distribution ,
The formula to find the standard deviation is given by :-
, where p= population proportion.
n= sample size.
Given : The proportion of mice that consumed a certain poison will die from it : p= 81% =0.81
The sample size = n= 1700
Then, the standard deviation of the number of mice that will die from it is given by :-
Hence, the standard deviation of the number of mice that will die from it= 16.17