Question what unit/ grade math is this?
Step-by-step explanation:
focus=(0,4)
Direcrtrix,y=-4
p=4
vertex=(0,0)
Open upward
(x-h)²=4p(y-k)
(x-0)²=4(4)(y-0)
(x-0)²=16(y-0)
The answer is y = -2x-2
To find the slope of a line perpendicular to your equation, you just need to find the reciprocal. This just means flip the signs (change positive to negative, or negative to positive) and flip the numerator and denominator. So if you have 1/4 as your slope, the perpendicular slope would be -4/1 (which is just negative 4).
I changed the “b” from -3 to -2 so it would run through the points (-2, 2).
I hope this helps :)
Answer:
<em>Answer: F. 1,275% and 12.75.</em>
Step-by-step explanation:
<u>Ratios</u>
Ratios are usually expressed as decimals, fractions, colon notation, and percentages.
For example, if the ratio of two quantities is 2, it can be expressed as:
2, 2/1, 2:1, 200%
To obtain the percentage expression, just multiply by 100%.
The price of the popcorn sold at a movie theatre was marked up as 12 3/4 times the original cost.
The mixed fraction can be converted to a decimal by just adding their parts as follows:
12 + 3/4 = 12.75
Now to express it as a percentage, multiply by 100%:
12.75 * 100% = 1,275%
Answer: F. 1,275% and 12.75.
Answer:
Step-by-step explanation:
