The formula for percent error is:
((Approximate value - exact value) / exact value) x 100
1) 14-12 = 2
2/12 = 0.1666
0.166 x 100 = 16.7% (Rounded to nearest tenth)
2) 231 - 215 = 16
16/215 = 0.74419
0.74419 x 100 = 7.4419% ( Round as needed)
3) 17.1 - 16.5 = 0.6
0.6/16.5 = 0.36364
0.36364 x 100 = 3.6364% (Round off as needed)
4) 1081 - 1150 = -69
-69/1150 = -0.06
-0.06 x 100 = -6% = 6% error
Answer:
47
Step-by-step explanation:
first of all simply the ones with powers and you will get 156-9*5-64 then multiply and you will get 156-45-64 simplify and the answer is 47
Answer:
X less than 10
Step-by-step explanation:
The problem is set up 2x - 8 < 12. Add 8 to both sides to get 2x <20. Divide by 2 to get x < 10
They are up and down and left and right
"quadration?" "quadratic equation?"
Write out the general vertex form and then plug in the given info:
y = a(x-h)^2 + k
Vertex at (3,3): y = a(x-3)^2 + 3
curve passes thru (5,11): 11 = a(5-3)^2 + 3
11 = a(2)^2 + 3 = 4a + 3 = 11, or a = 2
Then the equation of this parabola is
y = 2(x-3)^2 + 3.
check: Does this pass thru (5,11)? Is 11 = 2(5-3)^2 + 3 true?
Is 11 = 2(4)+3 true? YES