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3 years ago

Which equation represents a circle with a center at (2, -7) and a radius of 4 units?

Mathematics

2 answers:

pogonyaev3 years ago

6 0

Answer:

(x-2)²+ (y+7)²=16

Bezzdna [24]3 years ago

3 0

Answer:

(x+3)^2+(y-5)^2=16

Step-by-step explanation:

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Complete the statement. Round to the nearest hundredth if necessary 18 ft = { }yd

pav-90 [236]

18 feet equals 6 yards. 18/3

7 0

3 years ago

Read 2 more answers

The Ferris wheel has a radius of 70 feet. The distance between the wheel and the ground is 4 feet. The rectangular coordinate sy

Leya [2.2K]

Answer:

The equation of the circular wheel is $x^2+(y-74)^2=(70)^2$ .

Step-by-step explanation:

Given :

Radius of Ferris wheel r = 70 feet.

The distance between the wheel and the ground = 4 feet.

Also, the rectangular coordinate system shown has its origin on the ground directly below the center of the wheel.

So the x coordinate of center of wheel must be 0 , and y coordinate = 70 + 4 = 74

Thus, Coordinates of center = (0,74)

The equation of circle is given by :-

$(x-h)^2+(y-k)^2=r^2$

Now center (h,k) = (0,74) and r = 70 , we get

$x^2+(y-74)^2=(70)^2$

Hence, the equation of the circular wheel is $x^2+(y-74)^2=(70)^2$ .

6 0

3 years ago

HELP!!! 50 POINTS!!!! a transformation is a _____ to the _____ or _____ of a figure

Temka [501]

Answer:

a transformation is a rotation or reflection  to the position or co-ordinates of a figure

4 0

2 years ago

How many permutations can be made with the letters in the word Metallica

pentagon [3]

<h3>Answer: 90720 </h3>

===============================================

Explanation:

There are 9 letters in "Metallica", so there would be 9! = 9*8*7*6*5*4*3*2*1 = 362880 different permutations; however, this is only the case if we could tell the letters L and A apart.

We have two copies of each of those repeated letters, so we have to divide by 2!*2! = (2*1)*(2*1) = 4 to account for these repeats.

Because we can't tell the repeated letters apart, we really have (9!)/(2!*2!) = (362880)/(4) = 90720 different permutations.

5 0

3 years ago

Which is the best prove why.5 gallon bucket of paint for $97.45 of a 1 gallon bucket of paint for 21.95.?

Greeley [361]

97.45 / 5 = 19.49 per gallon

and then there is 21.95 per gallon

the better deal would be the 5 gallon bucket for 97.45 because if u buy it this way, it is cheaper by the gallon

4 0

3 years ago