Gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple ch
2 answers:
Answer:
Each question had 4 points.
Step-by-step explanation:
Let the questions be x points each. As both Gretchen and Ezia received equal scores, we can write the equation as:
18x+19=15x+31 (Let the questions be x points each)
Solving for x;
=>
Dividing both sides by 3;
x = 4
Hence, each question had 4 points.
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Answer:
D
Step-by-step explanation:
From any point (x, y) on the parabola the focus and directrix are equidistant
Using the distance formula
= | y + 1 |
Squaring both sides
(x + 5)² + (y - 5)² = (y + 1)^2 , that is
(y + 1)² = (x + 5)² + (y - 5)² ← subtract (y - 5)² from both sides
(y + 1)² - (y - 5)² = (x + 5)² ← expand left side and simplify
y² + 2y + 1 - y² + 10y - 25 = (x + 5)²
12y - 24 = (x + 5)² ← factor left side
12(y - 2) = (x + 5)² ← divide both sides by 12
y - 2 = (x + 5)² ← add 2 to both sides
y = (x + 5)² + 2
or
f(x) = (x + 5)² + 2 → D
Answer:
chance or 12.5% chance
Step-by-step explanation:
2 male <em>percussionists</em>
2 female <em>percussionists</em>
3 male <em>woodwinds</em>
<u>2 </u><u>female</u><u> </u><u><em>woodwinds</em></u>
4 male <em>brass players</em>
3 female <em>brass players</em>
We're looking for a female <em>woodwind. </em>Now there is only 2 of them so we get the female woodwinds out of all the jazz band members or or
or 12.5% chance.