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3 years ago

11) Write the equation of the circle with center (7, 3) and a radius of 2.

Mathematics

1 answer:

Minchanka [31]3 years ago

5 0

(x - 7)² + (y - 3)² = 4 is your equation.

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Find the unit rate. round to the nearest hundredth, if necessary.<br><br>$360 for 13 ft2

lidiya [134]

what

Step-by-step explanation:

5 0

3 years ago

. can someone help pls

disa [49]

Answer:

The answer is 3,906.25

Step-by-step explanation:

All you have to do is divide 15,625 by 4! :)

6 0

2 years ago

What are the measures of Angles a,b, and c? Show your work and explain your answers. Will marks best answer as Brainliest

Soloha48 [4]

Angle a is directly opposite from a 40 degree angle, so a=40. Then we can find b since the sum of the angles of all triangles is 180 and there is a right angle in there along with angle a:
$180=90+40+b$
$b=50$

Last, to find c we just notice that it is supplementary with an angle of measure 65, so:
$c+65=180$
$c=115$

So our angles are a=40, b=50, c=115.

5 0

3 years ago

3<br> Describe and correct the error a student made when graphing the linear equation y = -3/4x -6

likoan [24]

Answer:

In step 1 the y-intercept should be plotted at (0,-6)

Step-by-step explanation:

Remember that to find the Y intercept in any linear equation you need to use 0 as your X value, this means taking the formula in the y=mx+b form and replacing X with a 0.

Since the formula is y = -3/4x -6

We just insert a 0 insted of the "x"

y = -3/4(0) -6

y=0-6

y=6

So the y-intercept sould be placed in (0,-6)

That's what he did wrong when graphing the equation.

5 0

4 years ago

A student determined that the area of the segment of c shown above is Asegment = 137.71 ft2. The student's work is shown below.

ivolga24 [154]

Answer:

Option D. The student did not use the correct formula to calculate the area of the segment

Step-by-step explanation:

step 1

Find the area of the isosceles triangle

Applying the law of sines

$A=\frac{1}{2}(12^{2})sin(60\°)=62.35\ ft^{2}$

step 2

Find the area of the sector

The area of the sector is 1/6 of the area of the circle

$A=\pi r^{2}/6$

substitute the value

$A=(3.14)(12)^{2}/6=75.36\ ft^{2}$

step 3

Find the area of the segment

The area of the segment is equal to the area of sector minus the area of triangle

$A=75.36\ ft^{2}-62.35\ ft^{2}=13.01\ ft^{2}$

therefore

The student did not use the correct formula to calculate the area of the segment

4 0

3 years ago