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stira [4]
3 years ago
15

State the radius of this circle: X^2 +Y^2=121

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
8 0

Answer:

radius = 11

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

x² + y² = 121 ← is the equation of a circle centred at the origin

with r² = 121 , then

r = \sqrt{121} = 11

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colton's gross pay id $1421.50 and his net pay is $973.48 what percent of his gross pay is take-home pay
myrzilka [38]
The answer is 68.5%

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4 0
3 years ago
The square of 9 less than a number is 3 less than the number. What is the number?
Y_Kistochka [10]
7 or 12 as both are more that the square of 9 (3)
3 0
4 years ago
The length of a rectangle is three times the width. Find the width if the perimeter is 80 cm.
elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

The length of a rectangle is three times the width. Find the width if the perimeter is 80 cm.

PERIMETER = 2L +2W

L=3W

PERIMETER= 2(3W) +2W

80= 6W +2W =8W

80=8W

W=10

L=3X10=30

CHECK]

(2x10) + (2X30) =20+60=80

x

8 0
3 years ago
The length of a suitcase is 36 inches . The diagonal of the suitcase is about 51 inches . What is the width of the suitcase ,rou
Mrrafil [7]

<u>Given</u>:

The length of a suitcase is 36 inches.

The diagonal of the suitcase is about 51 inches.

We need to determine the width of the suitcase.

<u>Width of the suitcase:</u>

The width of the suitcase can be determined using the Pythagorean theorem.

Thus, we have;

d^2=l^2+w^2

where d is the diagonal, l is the length and w is the width.

Substituting the values, we get;

51^2=36^2+w^2

Squaring the terms, we have;

2601=1296+w^2

Subtracting both sides by 1296, we get;

1305=w^2

Taking square root on both sides, we get;

36.12=w

Rounding off to the nearest inch, we get;

36=w

Thus, the width of the suitcase is 36 inches.

4 0
4 years ago
REPOST
melamori03 [73]

Answer:

  1. 5/48, 3/16, .5, .75, 13
  2. 1/5, .35, 12/25,  .5, 4/5
  3. -3/4, -7/10, 3/40, 8/10
  4. -.65, -3/8, 5/16, 2/4

Step-by-step explanation:

  1. 5/48 = 1.0291666666 | 3/16 = .1875 the rest is obvious
  2. 1/5 = .2 | 12/25 = .48 | 4/5 = .8
  3. -3/4 = -.75 | -7/10 = -.7 | 3/40 = .075 | 8/10 = .8
  4. -3/8 = -.375 | 5/16 = .3125 | 2/4 = .5
5 0
3 years ago
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