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diamong [38]
3 years ago
14

The wheels on an adult size 4-wheeler has a radius of 14 inches. What is the distance the wheel will travel in one full rotation

?
Mathematics
1 answer:
Gekata [30.6K]3 years ago
8 0

Answer:

There is two questions...... the title does not match the post.?

 

4 wheeler   pi 2r = pi * 2 * 14 = ........inches in one rotation

 

Stage

 Circumference = 157 = 2 pi r       r = 24.987 ft      area = pi r^2 = 1961.5 ft^2

    1961.5 ft^2 / 400 ft^2/hr = 4.9 hrs to paint ~~5 hours to paint

Step-by-step explanation:

ifdat helps

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2 years ago
Write an equation of the line that is perpendicular to 2x + 4y = 6 and passes through the point (6, 4) ). es A ) y = 2x + 4 B) y
netineya [11]

Answer:

B - y = 2x - 8

Step-by-step explanation:

Step 1: find slope

2x + 4y = 6

4y = -2x + 6

Make y the subject of the formula

y =( -2x + 6)/4

We can separate to get the slope

y = -2x/4 + 6/4

y = -x/2 + 3/2

Slope m = -1/2

Step 2: using a point slope form equation

y - y1 = m ( x - x1)

Note: if two lines are perpendicular to the other, it is always a negative reciprocal of each other

ie m = 2

Substitute m into the equation

y - y1 = 2(x - x1)

Step 3: sub the point

( 6 , 4)

x1 = 6

y1 = 4

y - 4 = 2( x - 6)

Step 4 : using a slope intercept form equation

Open the bracket

y - 4 = 2x - 12

y = 2x - 12 + 4

y = 2x - 8

The equation of a line is

y = 2x - 8

5 0
3 years ago
X y<br>-28 -54<br>-21 - 40<br>-14 -26<br>What is the y-intercept of the line?​
jeka94

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Step-by-step explanation:

7 0
3 years ago
Whats the answer plz?10 points!:)
jeyben [28]

Answer:


Step-by-step explanation:

f(x) = 3x + 1 and g(x) = x^2 - 6

(f + g) (x)

(3x + 1) + (x^2 - 6)

3x + 1 + x^2 - 6

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I hope this helps!


7 0
3 years ago
4.
OLEGan [10]

Answer:

\cos\ A = \frac{2}{4.5}

Step-by-step explanation:

Given

sin\ A = \frac{2}{4.5}

See attachment

Required

Explain and correct the error

The error in the equation is that: the formula of cosine of angle A is used to calculate the sine of angle A.

The ratio can be corrected as by using:

\cos\ A = \frac{Adjacent}{Hypotenuse}

\cos\ A = \frac{AC}{AB}

\cos\ A = \frac{2}{4.5}

8 0
3 years ago
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