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eimsori [14]
3 years ago
5

Which function is linear?

Mathematics
1 answer:
gavmur [86]3 years ago
7 0

Answer: A linear function is a type of function that when graphed are a straight line.

  • Examples: In attachment - Red = Nonlinear Blue = Linear.

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What is the value of x and y if 21x+7y=42 and -5x+5y=10 are equal
nikdorinn [45]

Answer:

-5x/5 +5y/5=10/5=2

y-x=2

y=x+2

21x+7*(x+2)=42

21x+7x+14=42

28x=42-14

28x=28

x=1

y=1+2

y=3

Step-by-step explanation:

7 0
3 years ago
To the nearest hundredth, what is the sine of the acute angle formed by the line whose equation is y = 3x - 3 and the positive x
Serhud [2]

Answer:

The sine of the acute angle is 0.95

Step-by-step explanation:

using a graphing tool

see the attached figure

Let

A-----> the acute angle formed by the given line and the positive x-axis

In the right triangle XYZ

we know that

sin(A)=\frac{xy}{xz}

we have

xy=3\ units

yz=1\ units

Applying the Pythagoras Theorem find the value of xz

xz^{2}=3^{2}+1^{2}\\ \\xz^{2}=10\\ \\xz=\sqrt{10}\ units

substitute

sin(A)=\frac{3}{\sqrt{10}}=0.95

5 0
3 years ago
What is the solution to x/3 = -12
Mademuasel [1]

Answer:

x = -36

Step-by-step explanation:

Just multiply both sides of the equation with 3...,which tend to give a solution of,

; x = -12(3)

; x = -36

7 0
3 years ago
At the local college, a study found that students earned an average of 14 credit hours per semester. A sample of 138 students wa
77julia77 [94]

Answer:

1932 credit hours

Step-by-step explanation:

Create a proportion

credits             credits

----------     =      ----------

students          students

14      ?

---- = -----

1         138

14 times 138

1932 credit hours

6 0
2 years ago
Which of the following has a unit price (price per item) of $0.25? Choose 2. *
exis [7]

Answer:

8 pieces/$2.00

6 pieces/$1.50

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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