Answer:
the representative sample in this situation is 120students in 4 different classes
Answer:
4
Step-by-step explanation:
Evaluate f(3) and g(2)
f(3) = 2(3) - 4 = 6 - 4 = 2
g(2) = - 3(2)² + 5(2) = - 3(4) + 10 = - 12 + 10 = - 2
Then
f(3) - g(2) = 2 - (- 2) = 2 + 2 = 4
Answer:
90 and 45 degree angles
Step-by-step explanation:
Answer: About 43% of the paintings are displayed on the first floor.
Step-by-step explanation: For this problem we can use a percent equation to solve for p, the percent of paintings that will be displayed on the first floor.
Lets write the percent equation:
40/92 = p/100 (We basically are finding 40 out of 92 paintings is what percent of the total paintings.
40/92 x 100 = p/100 x 100 (We always multiply both sides by 100 when dealing with percent that are out of a whole, or 100.)
40 x 100 = 4000/92 = ABOUT 43. p/100 x 100 = p.
About 43 = p
So about 43% of the paintings are displayed on the first floor.
Answer:
Step-by-step explanation:
h(x) = x² - 5x
x² - 5x = 104
x² - 5x - 104 = 0
D = (- 5)² - 4(1)(- 104) = 441 = 21²
= (5 - 21) / 2 =<em> - 8</em>
= (5 + 21) / 2 =<em> 13</em>
