3 years ago

What is the surface area of this shape

Mathematics

1 answer:

Arlecino [84]3 years ago

3 0

Answer:

54 i think

Step-by-step explanation:

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the shapes below are drawn on a centimeter grid, show that the triangle and the square have the same area.

jonny [76]

Answer:

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Step-by-step explanation:

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3 years ago

Which of the given lengths make a right triangle?

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3 years ago

The graph of a system of linear equations shows 2 lines with different slopes.

pochemuha

they are the same lines

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Step-by-step explanation:

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3 years ago

Find two numbers, if their sum is 49 and their difference is 1/2 .

amm1812

Answer:

$x=24\frac{3}{4}\\ y=24\frac{1}{4}$

Step-by-step explanation:

Let the two numbers be x and y

So we have:

$x +y = 49\\x-y=\frac{1}{2}$

using the elimination method, add the two equations together:

$2x=49\frac{1}{2} \\2x=\frac{99}{2}$

solve for x:

$x=\frac{99}{4}\\x=24\frac{3}{4}$

substitute our value for x back into the first equation we made:

$x+y=49\\(\frac{99}{4}) + y=49\\y=49-\frac{99}{4}\\y=\frac{97}{4} \\ y=24\frac{1}{4}$

therefore,

$x=24\frac{3}{4}\\ y=24\frac{1}{4}$

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3 years ago

Solve: 3a - 2.4 = 5.1 a = _____

Delicious77 [7]

Answer:

a=2.5

Step-by-step explanation:

3a-2.4=5.1 Add the like terms ( plus 2.4 cancels out -2.4)

+2.4 +2.4

3a=7.5 Now divide by 3

/3 /3

a=2.5

7 0

3 years ago