Determine whether the following pairs of lines are parallel,perpendicular,or neither. y=2x+1 2x+y=7
Answers
In order to answer this one, you have to remember:
--> Parallel lines have equal slopes.
--> Perpendicular lines have negative reciprocal slopes.
(One slope = - [ 1/the other slope ]
The question gives us two lines:
#1). y = 2x + 1
#2). 2x + y = 7
The first equation is in nice slope-intercept form, and we can see
right away that the slope of its graph is 2 .
The second equation is not in slope-intercept form, so we need to
massage it slightly before we can spot the slope of its graph.
2x + y = 7
Subtract 2x from each side: y = -2x + 7 . <== slope-intercept form.
Slope = -2 .
Now we know both slopes.
#1). Slope = 2
#2). Slope = -2
Are the slopes equal ? I don't think so. 2 is not equal to -2 .
The lines are not parallel.
Are the slopes negative reciprocals ? I don't think so.
2 is not equal to -[ 1/(-2) ].
The lines are not perpendicular.
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Help ASAP!!! With my math studyisland!!
Solve for X in 5x/10=2
Anna runs three over4 mile in six minutes. Assuming she runs at a constant rate what is her speed in miles per hour
A. semicircles of radii 18 ft, 10 ft, and 6 ft
B. a three-quarter circle of radius 18 ft, quarter circles of radii 10 ft and 6 ft
C. semicircles of radii 18 ft, 12 ft, and 8 ft
D. a three-quarter circle of radius 18 ft, quarter circles of radii 12 ft and 8 ft
Answers
Answer:
B. a three-quarter circle of radius 18 ft, quarter circles of radii 10 ft and 6 ft
Step-by-step explanation:
A diagram can be a useful aid to answering this question. At one corner of the shed, 8 ft of rope is no longer available, so the quarter circle has a radius of 18-8 = 10 ft. (That side of the shed is 12 ft, so the area is only a quarter circle.)
At the other corner of the shed, 12 ft of rope is no longer available, so the quarter circle has a radius of 18-12 = 6 ft. (That side of the shed is 8 ft, so the area is only a quarter circle.)
In the attached diagram, the 3/4 circle with radius 18 ft is shown red, and the quarter circles are shown in green.
A) -1
B) -0.75
C) 3
D) 12
Answers
Graphed Functions
When we are finding f(x) given a value of x, we must identify the value of y that results from the value of x.
Solving the Question
We are asked to find f(2).
On the graph, first find the location of x=2.
Then, identify where the function is at x=2.
Finally, identify the corresponding y-value: 12.
Answer
The value of f(2) is 12.
Answers
Remember from now on ;
If the value of f(x) is asked, we put what thing written in parentheses inside the function instead of x. It doesn't different what is written, we just have to replace it with x.
Got it ?
Now Let's do it .....
_________________________________
And we're done...
♥️♥️♥️♥️♥️
Answers
Your square is a rectangle, with length=width.
Using 1 inch = 2.54 centimeters, the square's area is
(8 x 2.54 cm) x (8 x 2.54 cm)
= (20.32 cm) x (20.32 cm) = 412.90⁺ cm²
Rounded to the nearest cm², it's 413 cm² .
Answers
Answer: $65,000
Step-by-step explanation: Each box worth $5,000
Answers
Answer: The X axis.
Step-by-step explanation: You can tell because if you fold the paper in half hamburger style then the two shapes line up and they fold across the X axis.