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3 years ago

Find the surface area (the triangle are right triangles).

Mathematics

1 answer:

Igoryamba3 years ago

4 0

Answer:

67.5

Step-by-step explanation:

Well area of a triange is 1/2bh so we can find the side closest to us by doing

1/2(3x4) which is 12

the other side would be 1/2 (3x5) which is 7.5

the bottom side would be 1/2(8x4) so 16

and 1/2 (3x8) so 12

1/2 (8x5) so 20

add those together to get 67.5

Hope this helped ya!

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m∠A = 42 and m∠C = 57. Find m∠B. A. 81 B. 99 C. 132 D. 147

faltersainse [42]

A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81

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2 years ago

Jaime has 8/10 of a candy bar left over. He wants to split it into 1/3 pieces.

Valentin [98]

Answer:

2 pieces.

Step-by-step explanation:

To identify how many pieces he can split with 8/10 of a candy bar, divide 8/10 by 1/3.

Divide 8/10 by 1/3:

$\frac{8}{10} / \frac{1}{3}=$

Find the Ricipricol, then flip the sign:

$\frac{8}{10} (\frac{3}{1} )=$

Multiply:

$\frac{8}{10} (\frac{3}{1})=\frac{24}{10} =\frac{2.4}{1}$

2.4 represents how many pieces of chocolate he can make with 8/10 of a candy bar.

However, 2.4 pieces can't be made, therefore he can only make 2 full pieces.

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2 years ago

Find the value of x. If necessary, round to the nearest tenth.

Wewaii [24]

Answer:

7.3 in

Step-by-step explanation:

area = 27 = 54/2 = (x^2)/2

so what squared is 54?

7.34 whatever inches.

round it down, that's 7.3.

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2 years ago

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What is set builder notation of[1, 3,5,39]

Keith_Richards [23]

Answer:

{ x : x = odd natural numbers < 41 }

Step-by-step explanation: Hope this helps!

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2 years ago

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Mancuso wants to draw a sector whose area is 2 times the area of the sector shown

Alecsey [184]

Answer:

Multiply the radius (r), by 2 then divide the angle measure, x, by 4.

Step-by-step explanation:

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2 years ago