Answer:
60
Step-by-step explanation:
Answer:
<h2>The probability is

+

+

.</h2>
Step-by-step explanation:
The probability of having high blood pressure is 17%.
We need to find the probability of 2 or fewer have high blood pressure.
Possibility 1: No one have high blood pressure.
The probability is
.
Possibility 2: Only one have high blood pressure.
The probability is
.
Possibility 3: 2 among the 10 have the high blood pressure.
.
Any of the possibilities can happen.
Hence, the required probability is
+
+
.
Answer:c
Step-by-step explanation:82+78+81+89+79+92+87=588
And 588/7 =84
Answer:
I would say A because the real answer is 23.477
Step-by-step explanation:
First you need to know some rules 2 numbers that are the same with coefficients divided : you differentiate those coeff
and multyplied :you sum up them
12x^8/3x^3= 4x^8-3=4x^5
20^2x=20^x*20^x
m^5*m^-7=m^5-7=m^-2