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lakkis
10 days ago
13

Find the vertex, focus, directrix, and focal width of the parabola. x2 = 20y

Mathematics
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Alejandro made an error in the steps below when determining the equation of the line that is perpendicular to the line 4x – 3y =
Svet_ta [12734]
The equation of the perpendicular line can be identified by determining its slope and applying the given point within the standard formula.

Standard equation: y-y1 = m(x-x1)

m*m'=-1
where m' indicates the slope of the perpendicular line
m denotes the slope of the original line

m = -coefficient of x/coefficient of y = -4/-3 = 4/3
m' = -3/4

Substituting the point (3, -2):
y+2 = -3/4*(x-3)
4y+8 = -3x+9

Thus, the equation of the perpendicular line is: 3x+4y-1=0
7 0
2 months ago
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Jack bought 4 dozen eggs at k10 per dozen. 6 eggs were broken .what percent of his money goes waste?​
zzz [12365]

Step-by-step explanation:

I hope this meets your requirements.

PLEASE MAKE ME BRAINLIEST

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2 months ago
Tyler wants to use $300 he has saved to buy a new guitar and join a music club. The guitar costs $140. The music club has a $25
tester [12383]

Answer:

ok __?__ equals 11 and ___ equals 3.55

Step-by-step explanation:

Start by subtracting 140 and 25 from 300, then divide by 11.95 which results in 11; subsequently, multiply 11 by 11.95 and deduct that from 135.

4 0
3 months ago
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Write the quadratic equation whose roots are six and -2 and who’s leading coefficient is 3 use the letter X to represent the var
babunello [11817]

Response:

3X^{2} - 12X - 36 = 0

A quadratic equation has solutions of 6 and -2.

Thus, if the variable is denoted by X, the factors of the polynomial function will be (X - 6) and (X + 2).

Thus, the equation can be represented as

(X - 6)(X + 2) = 0

⇒

X^{2} - 4X - 12 = 0

If the leading coefficient is 3, we can express the equation as

(Response)3X^{2} - 12X - 36 = 0

6 0
1 month ago
A discount of 16% saved Jackie $38 on office supplies. What was the price of the supplies before the discount?
PIT_PIT [12445]
You have two kinds of data $ and %!
Align them properly and perform cross multiplication.

16% corresponds to $38 as
100% corresponds to $x

Following this, x = (38*100)/16 = $237.5, which is the original price before the discount.
8 0
2 months ago
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