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3 years ago

Simplify 3 1/2 x 3 1/2

Mathematics

1 answer:

Triss [41]3 years ago

8 0

Answer:

12.25

Step-by-step explanation:

3 1/2 x 3 1/2

3.5 x 3.5

Multiply

= 12.25

Hope this helps :)

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HELPPP!!<br> What is the domain of the relation {(-2, 4), (1, 3), (0, -4), (3, 2)?

iren2701 [21]

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Answer:

{-2, 0, 1, 3}

Step-by-step explanation:

The domain is the list of the x-values in the (x, y) pairs:

{-2, 0, 1, 3}

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2 years ago

The average cost of 3 books 3:2:5 is $50. How much does each book cost?

Nina [5.8K]

Step-by-step explanation:

We have to find what one share is

we have 3 shares + 2 shares + 5 shares

so he have a total of 10 shares

next, we divide 50 by total shares to get what one share is

50 ÷ 10 = 5

5 is one share

fins what each is

for 3

3 shares so 3 fives

3 × 5 = 15

for 2

2 shares so 2 fives

2 × 5 = 10

and for 5

can you work it out and leave in the comments i will say if it is correct

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2 years ago

You have just bought a new television and it has an aspect ratio of 16:9. The screen on the television is 65 inches. What is the

dem82 [27]

Answer:

Width of T.V. is 21.94 inches Height is 39 inches and area is 855.66 square inch.

Step-by-step explanation:

When we buy an electronic item like T.V or Blue Ray aspect ratio is the term which is used by the salesmen or technicians. Aspect ratio is actually the ratio of length and breadth of the screen of a device or ration of width and height.

In this question aspect ratio of television is given as 16:9

This can be written as $\frac{W}{H}=\frac{16}{9}$ or $W=\frac{16}{9} H$

Screen of the T.V. is 65 inch which is the diagonal length of the screen.

We know from pythagoras theorem in a right angle triangle

$(diagonal)^{2}=(base)^2+(height)^2$

$(65)^2=(Base)^2+(height)^2$

$(65)^2= W^2+H^2 = (\frac{16}{9}H)^2+H^2$

$(65)= \sqrt{\frac{16}{9}H^2+H^2}\\ 65=H\sqrt{\frac{16}{9}+1}\\ 65=H\sqrt{\frac{25}{9}}\\ 65=\frac{5}{3}H\\ H=39 inches$

Now height of the T.V.will be

$\frac{W}{H}=\frac{16}{9} \\\\\frac{H}{W}=\frac{9}{16}\\ H=\frac{9}{16}W = (\frac{9}{16})39= 21.94 Inches$

now area of the T.V.=W×H=39×21.94=855.66 square inch

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3 years ago

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Alchen [17]

Answer:

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Step-by-step explanation:

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2 years ago

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Mashutka [201]

Answer:

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2 years ago