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3 years ago

You roll a six-sided die. Find the probabilities of rolling a 3? Rolling a 7? Rolling a 3 or 4?

Mathematics

1 answer:

abruzzese [7]3 years ago

5 0

18% for rolling 3, 21% for rolling 7, and 36% for 3 or 4

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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

8 0

3 years ago

Read 2 more answers

Evaluate p-(m-4)(p-q) given m = -6, p=-5 and q=-5

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

5 0

2 years ago

Select the postulate or theorem

Ilia_Sergeevich [38]

Answer: SAS Similarity theorem.

Explanation.

SAS stands for Side - Angle - Side.

SAS theorem states that if two triangles have corresponding angles that are congruent and corresponding sides with identical ratios, then the triangles are similar.

And that is what the figure shows:

1) The angle at M is the same for both triangles.

2) The ratios of the sides are: 2/3 and 4 /6. Given that 2/3 = 4/6 you have that the two corresponding sides have identical ratios.

7 0

3 years ago

A marketing firm for Cobra Auto Security Systems mailed out a survey to 35% of the households in New York City, Washington DC, a

san4es73 [151]

Your answer would be B.

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3 years ago

Tammy Ray purchases 20 file cabinets for $986.99. What is<br> the price per cabinet?

RSB [31]

Answer:

Step-by-step explanation:

986.99/20=49.3485

Divide 986.99 by 20 which gets you 49.3485 then just around up the 10.

Hope this helps! Have a great day. Remember your amazing and you got this! Alycia <3

7 0

2 years ago

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