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Bezzdna [24]
3 years ago
11

Help me pleaseis this a linear function?

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
3 0
Yes, it is a liner function. It is in y=mx+b form
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Find an equation of the line through (3,7) and parallel to y=3x-1
iren2701 [21]

Answer:

y = 3x -2

Step-by-step explanation:

If the line is parallel, that means it has the same slope. The given equation had a slope of 3, so the new line must also have a slope of 3.

You can plug the given coordinates into the slope-intercept form with a slope of 3 to find your answer.

y = m*x + b

7 = 3*3 + b

7 = 9 + b

-2 = b

y = 3x -2

7 0
3 years ago
Which quadratic function has a leading coefficient of 2 and a constant term of -3?f(x) 2x3-3f(x) -3x3 2f(x) 2x 2 3x 3
AysviL [449]
Hello, the answer to this problem is D. Sorry, its vague!! But, it's correct!!!
3 0
3 years ago
36.8% of what number is 28.52?
laila [671]
To solve this problem we can use the rule of 3 and solve for x. Let's equate it as the following:

28.52/x=36.8/100

Why did I represent it like that?
In the first numerator we have the known quantity (28.52). In the second numerator we'll need the percentage that 28.52 represents (because the second fraction will represent percents). This will be 36.8%
The first denominator is x (the number we want to figure out). That number represents 100%. Hence the 100 as the second denominator.

To solve for x we need to do the following:
x=(28.52*100)/ 36.8
x=2852/36.8
x=77.5

Answer: 28.52 is 36.8% of 77.5

8 0
2 years ago
Read 2 more answers
A skateboard ramp is 40 feet long and rises from the ground at an angle of 33 degrees. How tall is the ramp?
olga_2 [115]

Answer:

The ramp is 21.8 ft tall.

Step-by-step explanation:

If you convert this into a triangle, 40 ft is the hypotenuse, 33° is the angle next to the right angle (on the horizontal line) and we need to find how tall the ramp is, which will be x. It is very helpful to draw a picture.

We will use the sine ratio because, starting from the given degree of 33, we have the hypotenuse value and need to find the value opposite the degree:

sine=\frac{opposite}{hypotenuse}

Insert values:

sin33=\frac{x}{40}

Multiply 40 to both sides to isolate the variable:

40(sin33)=40(\frac{x}{40})\\\\40*sin33=x\\\\x=40*sin33

Insert the value of x into a calculator:

x=21.7855614

Round if necessary:

x=21.8 ft

Done.

6 0
3 years ago
Carlos runs 7 miles in 57 3/4 mins. how fast did he run each mile?
san4es73 [151]
To find how much minutes Carlos runs each mile, you must first multiply 57.75 by 1 which is 57.75 because 57 3/4 and 57.75 is the same thing. Next, you must divide 57.75 by 7. Therefore, Carlos runs 8.25 minutes a mile.
3 0
2 years ago
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