Base on graph x > -3
so if you multiply both sides by 2 then: 2x > - 6
answer
D. x > - 3; 2x > -6
Answer:
Step-by-step explanation:
23. 1/x^7
24.-1/a^2
26. x^12
27. x^3y^15
29. 1/(4c^2d^6)
30. x^6y^3
Answer:
the answer is $2.17
Step-by-step explanation:
Subtract 8.48 from 4.14 to get 4.34 and then divide that by two to get 2.17. You add 2.17 to 4.14 to get 6.31 and subtract 2.17 from 8.48 to get 6.31.
Hope this helps!
Answer: The size of sample is 50
Step-by-step explanation:
Since we have given that
Variance of a sample was reported = 144
Variance of population was reported = 7200
Let the sample size be 'n'.
As we know the formula for "Variance of a sample":
Hence, the size of sample is 50.
Step-by-step explanation:
7x+3y=42.
y=-5x+30.
7x+3(-5x+30)=42
7x-15x+90=42
8x=42-90
-8x=-48
x=-48/-8
x=6
y=-5x+30
y=-5×6+30
=-30+30
y=0
(6,0)