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3 years ago

Write the equation of a line that has a slope of 3 and goes through the point

Mathematics

1 answer:

kkurt [141]3 years ago

5 0

Answer:

y = 3x - 5

Step-by-step explanation:

You use the equation y = mx + b, and you plug in what you know. The slope is already 3 so you do y = 3x + b

after that, you plug in y and x, because (2,1) are the values of x and y.

1 = 3(2) + b

1 = 6 + b

subtract 6 from both sides to isolate the b

-5 = b

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3 years ago

Pls help me, Answer choices are : A. 7 B. 30 C. 28 D. 49

WARRIOR [948]

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3 years ago

Read 2 more answers

What is the approximate volume of a cone with a radius of 15 cm and a height of 4 cm? Round your answer to the nearest hundredth

vichka [17]

Answer:

Volume of a cone $=942.86cm^3$

Step-by-step explanation:

Given that the radius of a cone is 15cm and its height is 4cm

That is r=15cm and h=4cm

To find the volume of a cone :

volume of a cone $=\frac{\pi r^2h}{3}$ cubic units

Now substitute the values in the formula we get

volume of a cone $=\frac{(\frac{22}{7}) (15)^2(4)}{3}$

$=\frac{(\frac{22}{7}) (225)(4)}{3}$

$=\frac{19800}{21}$

$=942.857$

Now round to nearest hundredth

$=942.86$

Therefore Volume of a cone $=942.86cm^3$

6 0

3 years ago

Value of b in the quadratic equation 3x/4=1/x

Assoli18 [71]

Is 0 one of your answer options? If so the answer is 0.

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3 years ago

Identify all of the following solutions of (square root of x+8)-6 =X

seropon [69]

Square root (x + 8) -6 = x
square root (x + 8) = x -6
x^2 + 16x + 64 = x^2 -12x + 36

28x = 48
x = 1.7142857143 

None of the above

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4 years ago