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svetoff [14.1K]

3 years ago

14

I used a picture....

1 answer:

sergij07 [2.7K]3 years ago

8 0

Answer is D alternative form is 3787.99512

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The perimeter of a right angled triangle is 30cm and its area is 30cm square then find the side of triangle

wariber [46]

Perimeter = a + b + c = 30

Area = 1/2 x a x b = 30

Multiples of 30: 2, 3, 5, 6, 10, 12, 15

For perimeter c = 30- (a+b)

C= sqrt( a^2 + b^2)

Using the possible combinations of the above:

5 and 12:

C = sqrt(5^2 + 12^2) = 13

5 + 12 + 13 = 30 for the perimeter

Area = 1/2 x 5 x 12 = 30

The sides are 5, 12 and 13 cm

7 0

3 years ago

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Help please !! thank you so much

belka [17]

Answer:

Yes it is a proportional relationship

Step-by-step explanation:

That is because 20 and 10 are your original and 40 and 20 and 60 and 30 match with it.

5 0

2 years ago

A trapezoid has a height of 10 centimeters. One parallel base has a length of 7 centimeters, and the other parallel base has a l

Papessa [141]

Answer:

I couldn't see the picture it is black

Step-by-step explanation:

the formula for the area of a trapezoid is:

$\frac{b1+b2}{2} h$

insert 7 for b1, 13 for b2, and 10 for h

$\frac{7+13}{2} 10$

100

Hope that helps

8 0

2 years ago

the line plot below shows how many points fewer trevor scored in 20 games. In how many games did trevor score 18 points fewer?

Amanda [17]

It should be 00.0076

3 0

3 years ago

1/2x+40=50 What is the answer for this problem??

Mama L [17]

Answer:

x = 20.

Step-by-step explanation:

1/2x + 40 = 50

1/2x + 40 - 40 = 50 - 40

1/2x = 10

1/2x * 2 = 10 * 2

x = 20

8 0

3 years ago

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