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stiks02 [169]
2 years ago
11

$500 plus 10% on sales of $1,400

Mathematics
1 answer:
galben [10]2 years ago
5 0

Answer:

10% of $1400 is $140
$500 + $140 = $640

Step-by-step explanation:

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What is the equation of the quadratic graph with a focus of (3, 1) and a directrix of y = 5?
lbvjy [14]

Answer:

The equation of the quadratic graph is f(x)= - (1/8) (x-3)^2 + 3 (second option)

Step-by-step explanation:

Focus: F=(3,1)=(xf, yf)→xf=3, yf=1

Directrix: y=5 (horizontal line), then the axis of the parabola is vertical, and the equation has the form:

f(x)=[1 / (4p)] (x-h)^2+k

where Vertex: V=(h,k)

The directix y=5 must intercept the axis of the parabola at the point (3,5), and the vertex is the midpoint between this point and the focus:

Vertex is the midpoint between (3,5) and (3,1):

h=(3+3)/2→h=6/2→h=3

k=(5+1)/2→k=6/2→k=3

Vertex: V=(h,k)→V=(3,3)

p=yf-k→p=1-3→p=-2

Replacing the values in the equation:

f(x)= [ 1 / (4(-2)) ] (x-3)^2 + 3

f(x)=[ 1 / (-8) ] (x-3)^2 + 3

f(x)= - (1/8) (x-3)^2 + 3

4 0
3 years ago
Student Directions:
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Answer:

a congruent triangle is less then 180 and is around 42 degrees

Step-by-step explanation:

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Answer:

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2 years ago
What is the exact volume of the cylinder?, (a) 54in. (b) 108in. (c) 162in. (d) 324in.
lbvjy [14]
9x 6x6x3.14 = 1017.36
I followed the formula but why donMt have the answer right here
4 0
3 years ago
P(X)=x²+50 then p(2)=<br>a) 6<br>b)7<br>c)8<br>d)9​
Natalka [10]

Answer:

54

Step-by-step explanation:

p(x)=x^2+50, p(2)=2^2+50=54

7 0
3 years ago
Read 2 more answers
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