Answer:
Answers are below
Step-by-step explanation:
5+1=6 No
78+6=76+8 Yes, commutative property of addition
2x+(3x+4x)=(2x+3x)+4x Yes, associative property of addition
52+(-18)=(-52)+18 No
6+(-6)=0 Yes, identity property of addition
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The decimal number for seventy eight hundred-thousandths is 5.
<h3>
What is decimal number?</h3>
A decimal is a number that consists of a whole and a fractional part
The decimal numeral system is the standard system for denoting integer and non-integer numbers.
What is the decimal number for seventy eight hundred-thousandths?
= 78 x 10⁻⁵
<u>note</u>: a hundred thousandth = 10⁻⁵
= 0.00078
Thus, the decimal number for seventy eight hundred-thousandths is 5.
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The equation of the line passing through 
and 
is
. Here
is the slope of the line.
Substituting numerical values, the equation of the line is
The equation of the line is 
Answer:
2 hours=120 mins
120-(45+25)
120-(70)
50
Ron has enough time to finish his homework and walk the dog before his lesson. Ron should overestimate the total time needed. Since Ron has 50 minutes to spare he could add 25 to home work time and another 25 to walking his dog. he still ha time to do both.
Answer:
-4.42
Step-by-step explanation:
Given the following :
Population mean (pm) = 8 hours
Sample mean (sm) = 6.9 hours
Number of observations (n) = 101 students
Sample standard deviation (sd) = 2.5
Using the t-statistic formula :
[(sm - pm) / (sd/√n)]
Hence,
[(6.9 - 8) / (2.5/√101)]
[(-1.1) / (2.5/10.05)]
-1.1 / 0.2487562
= −4.422
The test statistic = - 4.42 to the nearest hundredth.
