MATHEMATICS HIGH SCHOOL

Which of the following represents x = 1/3y written in general form?
1/3x - y = 0
3x - y = 0
x - 1/3y = 0

Answers

Answer 1
Answer: x= (1)/(3)y put all numbers on the left 
x- (1)/(3)y=0
third equation is the answer
x- (1)/(3)y=0 multiply by 3
3x-y=0
Answer 2
Answer: x=(1)/(3)y\ \ \ \ \ \ \ \ \ |substract\ (1)/(3)y\ from\ both\ sides\n\n\boxed{x-(1)/(3)y=0}\n\nx-(1)/(3)y=0\ \ \ \ |multiply\ both\ sides\ by\ 3\n\n\boxed{3x-y=0}

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Which answer is the most reasonable estimation?Cylvia is making 100 sandwiches for a banquet. She makes 47 sandwiches. Then she takes a break and makes 22 more. About how many more sandwiches does Cyliva have to make?

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Answers

the answer is c about 70.she has 69 left

A football is kicked toward the goal. The height of the ball is modeled by the function h(t) = -16t2 + 64t where t equals the time in seconds and h(x) represents the height of the ball at time t seconds. What is the axis of symmetry and what does it represent? t = 2; it takes 2 seconds to reach the maximum height and 2 seconds to fall back to the ground
t = 2; it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground
t = 4; it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground
t = 4; it takes 4 seconds to reach the maximum height and 8 seconds to fall back to the ground

Answers

h(t) = -16(t^2) + 64t

roots:

0 = -16t^2 + 64t
0 = t^2 - 4t
0 = t(t-4)
t=0 and t =4

The symmetry axis is at the middle of the two roots: t = (0+4)/2

That time (t=2)  is what it takes the object to reach the maximum height.

Answer: t = 2; it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground

Answer: B/ it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground

Step-by-step explanation:

a family uses 1303 kWh of electric energy in a month. if the power company charges $0.08 cents per kilowatt, what is the total electric bill for the month?

Answers

$104.25 is the electric bill for the month

-(4x - 7) + 1 = 2 (5 - 2x) solve for x

Answers

Answer:

No solution

Step-by-step explanation:

-(4x - 7) + 1 = 2(5 - 2x)

-4x + 7 + 1 = 10 - 4x

-4x + 8 = 10 - 4x

-4x + 8 ≠ -4x + 10

No solution

Guys I’ve got 15 minutes to answer all of them please help I’ve been busy with the rest of the problems help !!!!

Answers

Answer:

Step-by-step explanation:

yeah on the first on i got x= 54 but my brain is mush to do the rest sorry my dude

PLEASE HELP !!!!!!!!!!!!!!!!!2. Circle P has center P(2, 0) and radius 20. Circle Q has center Q(0, 4) and radius 2.
(a) Describe the rule for translating center Q onto center P.
(b) Determine the scale factor for dilating circle Q so that it has the same radius as circle P.
(c) Are circles P and Q similar? Explain your answer.

Answers

(a) Describe the rule for translating center Q onto center P.
center P(2, 0)
center Q(0, 4)
you would need to add 2 units in x axis, and subtract 4 units on y axis.

(b) Determine the scale factor for dilating circle Q so that it has the same radius as circle P.
P radius 20, Q radius 2, radiusQ*10 = radiusP, so the scale factor is 10

(c) Are circles P and Q similar? Explain your answer.
they are similar because a similarity transformation (translation, dilation) exists between them
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