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3 years ago

What is 4 - 2 + 8 divided by 2

Mathematics

2 answers:

andriy [413]3 years ago

7 0

Answer: 5

example:

4-2=2+8=10/2
=(2)

Nimfa-mama [501]3 years ago

3 0

Answer: 5

Step-by-step explanation:

4-2+8/2

2+8/2

10/2

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Find the area and the circumference of a circle with radius 3 cm.

pshichka [43]

1. Observe problem

Solve for the area and Circumference of a circle who's radius is 3 cm

Area for circle formula:

pi*r^2=

9pi

I simplicity is needed, 9 pi is around

28.2743338823cm^2

Circumference for circle formula: 2*pi*r

which is

6pi

if simplicity is again needed, its around

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6 0

3 years ago

Don works in home construction. He determined that the function t(A)=144A/9.252 gives the total number of 9 in. tiles needed to

Oksanka [162]

Answer:

6,226 tiles of 9 in are needed to cover an area of 400 square feet

Step-by-step explanation:

Let

A -----> an area in square feet

t(A) ---> the total number of 9 in. tiles needed

we have

$t(A)=\frac{144A}{9.252}$

For A=400 ft^2

substitute in the equation and solve for t

$t(400)=\frac{144(400)}{9.252}$

$t(400)=6,226\ tiles$

That means -----> 6,226 tiles of 9 in are needed to cover an area of 400 square feet

6 0

3 years ago

The points (–2, 4) and (–2, –2) are vertices of a heptagon. Explain how to find the length of the segment formed by these endpoi

Scrat [10]

Answer:

The segment is 6 units long.

Step-by-step explanation:

The points (–2, 4) and (–2, –2) are vertices of a heptagon. We have to explain how to find the length of the segment formed by these endpoints.

If two points at the ends of a straight line PQ are P( $x_{1},y_{1}$ ) and Q( $x_{2},y_{2}$ ), then the length of the segment PQ will be given by the formula

$\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}$

Now, in our case the two points are (-2,4) and (-2,-2) and the length of the segment will be

$\sqrt{(- 2 - (- 2))^{2} + (4 - (- 2))^{2}} = 6$ units. (Answer)

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4 years ago

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ABCD is a trapezoid. Point E is the midpoint of AD and point F is the midpoint of B.

VikaD [51]

2 cm. because you would subtract 5 and 3.

6 0

3 years ago

What is 13x13??????????????

nirvana33 [79]

The answer is 169 ..... I hope this helps :)

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3 years ago

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