Answer:
7th-grade: 4.3
8th-grade: 4.5
Step-by-step explanation:
7th-grade and 8th-Grade samples have 20 data points. The mean is obtained adding the values of the data set and dividing this addition by the amount of values.
Mean total household of the 7th-grade sample: (5+4+4+4+4+ 7+ 3+ 4+ 2+ 3+ 4+4+ 2+ 4+ 3+ 8+ 7+ 5+ 4+5)/20 = 4.3
Mean total household of the 8th-grade sample: (7+5+5+5+3+ 4+ 5+ 3+ 2+ 8+
6+5+6+3+3+4+4+5+3+4)/20 = 4.5
Answer:
Use the distributive property -28-8m
Step-by-step explanation:
-4(7+2m)
-28-8m
You can find the percentage easily, simply by dividing.
600,788,188 / 760,507,625 = 0.78998 (rounded) = 79% (rounded)
Answer:
1 7/9
Step-by-step explanation:
Could i have branliest please and a heart
9514 1404 393
Answer:
axis of symmetry: x = 2
see below for a graph
Step-by-step explanation:
You can complete the square to put the equation in vertex form.
y = (x^2 -4x +4) -1 -4
y = (x -2)^2 -5 . . . . . . vertex is (2, -5)
The equation of the axis of symmetry is the equation of the vertical line through the vertex:
x = 2 . . . . . axis of symmetry
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Points on the graph are easily found by using integer values on either side of x=2. Points on one side of the axis of symmetry are mirrored on the other side of it.