Hey there!:
4r -3 + 6s - 8r - (4s - 6)
*distribute parentheses :
= - ( 4s ) - ( - 6 )
Apply minus - plus rules
- ( - a ) = a ; - ( a ) = - a
= - 4s + 6
4r -3+ 6 s - 8r -4s + 6 =
Group like terms :
=4r - 8r + 6s - 4s -3+6
Add similar elements: 4r - 8r= - 4r
-4r + 6s - 4s- 3+6
6s - 4s = 2s
-4r + 2s - 3 + 6
Add/Subtract the numbers :
-3 + 6 = 3
Therefore:
= 2s +3 - 4r
hope this helps!
3rd option: A middle school student it more likely to own a phone than an elementary school student
Answer:
That's not what I'm learning sorry
Step-by-step explanation:
Answer:
C ) circle
This equation represents circle
x²-2 x+y²+4 y - 31 =0
Step-by-step explanation:
<u><em>Explanation:-</em></u>
let P(x₁ , y₁) be the locus point
Let P(x₁ , y₁) and A(1,-2)
Given data PA = 6
PA² = 6²
( x₁ -1 )²+(y₁+2)² = 36
x₁²-2 x₁+1+y₁²+4 y₁ +4 = 36
x₁²-2 x₁+y₁²+4 y₁ = 36-5
x₁²-2 x₁+y₁²+4 y₁ - 31 =0
This equation represents circle
x²-2 x+y²+4 y - 31 =0
Answer:
1. A. Quantitative data
B. Quantitative data
C. Qualitative data
D. Quantitative data
E. Qualitative data
F. Quantitative data
2.a. Yearly salaries: interval or ratio data
b. Employee numbers: interval or ratio data
c. Area codes : nominal data
d. The ages: interval or ratio data
e. Survey answers: ordinal data
f. IQ index: interval or ratio data
Explanation:
Qualitative data is data in the form of a quality such as a characteristic. It is usually a noun, such as whether a person is fair or dark in complexion. Quantitative data is data in form of quantity such as the amount in dollars of one's salary.
There are four levels of data measurement. They are: nominal data, ordinal data, interval data, and ratio data. Nominal and ordinal data are qualitative data while interval and ratio data are quantitative data.