2 years ago

8

Mathematics

1 answer:

Ronch [10]2 years ago

3 0

Where are the numbers?

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Ben's living room is a rectangle measuring 10 yards by 168 inches. by how many feet does the length of the room exceed the width

rjkz [21]

Since you are going in feet first calculate10 yards into feet and then 168 inches into feet. Then subtract the two. Hope that helped :)

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3 years ago

Which are not changed after a rotation

sineoko [7]

Where are your choices

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3 years ago

(8m-3n)^2 - (4m+3n)^2

natulia [17]

Answer:

$48m^2-72mn$

Step-by-step explanation:

We need to solve $(8m-3n)^2 - (4m+3n)^2$

We know that,

$(a+b)^2=a^2+b^2+2ab\\\\(a-b)^2=a^2+b^2-2ab$

Using the above formula,

$(8m-3n)^2 - (4m+3n)^2=(8m)^2+(3n)^2-2(8m)(3n)-[(4m)^2+(3n)^2+2(4m)(3n)]\\\\=64m^2+9n^2-48mn-(16m^2+9n^2+24mn)\\\\=64m^2+9n^2-48mn-16m^2-9n^2-24mn\\\\=48m^2-48mn-24mn\\\\=48m^2-72mn$

So, the final answer is $48m^2-72mn$ .

4 0

3 years ago

There are 10 balls in a bag numbered from to 10. Three balls are selected at random without replacement. a. How many different w

zhenek [66]

A) 30 possible combinations

B)1/10

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3 years ago

Answer these please!

neonofarm [45]

Answer:

u shouldnt wasnt your points u know

Step-by-step explanation:

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2 years ago