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inessss [21]
3 years ago
11

Write an equation for a line with a slope of 5 and y-inter of -3

Mathematics
1 answer:
Daniel [21]3 years ago
6 0

Answer:

y=5x-3

Step-by-step explanation:

y=mx+b where m=slope and b= y-intercept

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On her math test, Heidi correctly answered 35 of the 40 questions. What percentage of the questions did Heidi correctly answer?
Elena-2011 [213]

Answer:

Divide 35/40 = 87.5%

Step-by-step explanation:

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Triangle XYZ has vertices at X(–2, –1), Y(–3, –6), and Z(–7, –5). If triangle XYZ is rotated 90° clockwise, what will be the coo
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Hope this Helps!

Step-by-step explanation:

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3 years ago
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Please help me!! im so close to finshing
gtnhenbr [62]

Answer:

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Step-by-step explanation:

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2 years ago
What is 20.136 rounded to the nearest whole number?
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You have 42 ft. of fencing (1 ft. segments) to make a rectangular garden. How much should each side be to maximize your total ar
Verizon [17]

Answer:

Length=10.5\ ft

Width=10.5\ ft

Area=110.25\ ft^{2}

Step-by-step explanation:

Let

x----> the length of the rectangular garden

y---> the width of the rectangular garden

we know that

The perimeter of the rectangle is equal to

P=2(x+y)

we have

P=42\ ft

so

42=2(x+y)

simplify

21=(x+y)

y=21-x------> equation A

Remember that the area of rectangle is equal to

A=xy ----> equation B

substitute equation A in equation B

A=x(21-x)

A=21x-x^{2}----> this is a vertical parabola open downward

The vertex is a maximum

The y-coordinate of the vertex is the maximum area

The x-coordinate of the vertex is the length side of the rectangle that maximize the area

using a graphing tool

The vertex is the point (10.5,110.25)

see the attached figure

so

x=10.5\ ft

Find the value of y

y=21-10.5=10.5\ ft

The garden is a square

the area is equal to

A=(10.5)(10.5)=110.25\ ft^{2} ----> is equal to the y-coordinate of the vertex is correct

6 0
3 years ago
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