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Marina86 [1]
3 years ago
9

calculate the perimeter of a triangle that has an area of 2340 cm2, and an in-circle with radius of 18cm.

Mathematics
1 answer:
vovangra [49]3 years ago
3 0

Half of the perimeter multiplied by the radius of the inscribed circle is formula to find the area of a triangle, by using this you can see that the perimeter is 260 because 2340 / 9 = 260.

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The distance between second and third bases on a regulation baseball field is 90 feet. Scott says he needs to multiply to find t
dedylja [7]

Answer:

Yes, distance in yards can be obtained by multiplication.

Step-by-step explanation:

Given that the distance between tow points is 90 feets, The distance between these two points in yards can be obtained either by multiplication or division.

I foot = 0.3333 yards

To convert distance between the second and third bases from feet to yard ;

Multiply distance in feets by 0.3333 to obtain the corresponding distance in yards ;

90 * 0.3333 = 29.997 = 30 yards

3 0
3 years ago
Please help with this question picture attached ASAP please
olga nikolaevna [1]

1 : 1.71 : 2.43

Step-by-step explanation:

What divided by 7= 1?

7/7 = 1

So use that answer for the other two dolls.

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1 : 1.71 : 2.43

Have the same ratio as

7 : 12 : 17

5 0
2 years ago
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zheka24 [161]

Answer:

x=2 and y=36

Step-by-step explanation:

you have two equations

1) xy=72 and 2) (x+2)(y-4)=128

solve for one of the variables in equation 2), lets do y

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therefore, y=(128/(x+2))+4

then plug in y into equation 1)

so x(our new y)=72

x( 128/(x+2) +4 )=72

distribute the x so you will get

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128x=(x+2)(72-4x)

multiply by distribution and combine like terms

-4x^2 -64x +144 =0

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then you can check by substituting back into equation 2)

(2+2)(36-4)=128

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6 0
3 years ago
Determine if 12/16 and 30/40 are proportional
AnnZ [28]

Answer: Yes, they are proportional

Step-by-step explanation:

Simplify both to lowest number

12/16 = 3/4

30/40 = 3/4

5 0
3 years ago
Read 2 more answers
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olga2289 [7]

Answer:

120 minutes=2 hours

Step-by-step explanation:

5 1/2 hours multiplied by 60=330

330 subtracted by 210=120 minutes=2 hours

7 0
3 years ago
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