help with what? be sure to put everything you need to say into a question
Answer:
BC
Parallel: Two sides or lines are parallel if they are lines that are always the same distance from each other and will never intersect or touch
0.4763 is the answer I got
Answer: D. History
Step-by-step explanation:
To answer this question, we need to use the z-score formula written below:
Now we'll just plug in the numbers and solve.
History:
Biology:
As we can see, history wields a higher z-score than biology, thus leaving us with option D. History
Answer:
<u>x = 8 and y = 5</u>
Step-by-step explanation:
The question is as following:
what is x and y for the following system of equations:
50x + 30 y = 550 ⇒ (1)
44x + 36 y = 532 ⇒ (2)
Subtract (1) - (2)
∴ 6x - 6y = 18
Divide both sides by 6
∴ x - y = 3
∴ x = 3 + y ⇒ (3)
Substitute with the value of x at (1)
50(3+y) + 30y = 550
Solve for y
150 + 50y + 30y = 550
80y = 550 - 150 = 400
∴ y = 400/80 = 5
Substitute with the value of y at (3)
∴ x = 3 + y = 3 + 5 = 8
<u>So, x = 8 and y = 5</u>
