Answer:
122
Step-by-step explanation:
12 times 2 times 5 plus 2 gets rewritten as
(12)(2)(5) + 2
Follow PEMDAS and do multiplication first. From left to right...
24(5) + 2 { (12)(2) = 24 }
120 + 2 { (24)(5) = 120 }
122 { 120 + 2 = 122 }
Answer: 28
Step-by-step explanation:
28 is thhe missing number
2x^2-7=4
subtract 4 from both sdies
2x^2-11=0
therefor
2x^2=11
divide by 2
x^2=5.5
square root both sdies
x=-2.345 or 2.345
Answer:
Simple random sampling survey method
Step-by-step explanation:
A simple random sampling is an unbiased survey technique Hence it will represent all the parts of the city's population.
In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at any stage during the sampling process
X=the number we have to find.
This expression "2(x+9)" is when the sum of a number and nine is doubled.
If the result is seven less than the number, we will have: x-7
We can suggest the following equation:
2(x+9)=(x-7)
2x+18=x-7
2x-x=-7-18
x=-25
answer: the number would be: -25.
