Answer:
- 8
Step-by-step explanation:
Evaluate f(1) and f(- 1) by substituting x = 1 and x = - 1 into f(x)
Given
f(x) = x² - 4x + 6, then
f(1) = 1² - 4(1) + 6 = 1 - 4 + 6 = 3
f(- 1) = (- 1)² - 4(- 1) + 6 = 1 + 4 + 6 = 11
Thus
f(1) - f(- 1) = 3 - 11 = - 8
(x/y) + 2z.......when x = 6, y = 0.3, and z = -2.4
now we sub
(6/0.3) + 2(-2.4) =
20 - 4.8 =
15.2 <====
Answer:
C. 40%
Step-by-step explanation:
Since 2 of the 5 sections are shaded in, 2/5 of the circle is shaded in.
Simply divide 2 by 5 to get 0.4 and multiply by 100 to get 40%.
Answer:
14
Step-by-step explanation:
Answer:
The answer to your question is car 1 = 30 gal and car 1 = 20 gal
Step-by-step explanation:
car 1 = a
car 2 = b
Efficiency of car 1 = 35 mi/gal
Efficiency for car 2 = 20 mi/gal
Total distance = 1450
Total gas consumption = 50 gal
Equations
35a + 20b = 1450 ------- (I)
a + b = 50 ------- (II)
Solve by elimination
Multiply equation II by -35
35a + 20b = 1450
-35a - 35b = -1750
Simplify
0 - 15b = -300
Solve for b
b = -300/-15
Result
b = 20
Substitute b in equation II to find a
a + 20 = 50
Solve for a
a = 50 -20
Result
a = 30
