2 years ago

Find the value of k.

Mathematics

1 answer:

Bumek [7]2 years ago

6 0

Answer:

Plzzzz answer fast......

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Your new TV screen has a width that is 4 inches longer than its height. If the screen's diagonal measurement is 20 inches, find

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So the height is 12

Step-by-step explanation:

Let W be the width

Let W- 4 be the height

W2 +(W-4)2 = 400

So: W2 -4W-192 =0

One uses the quadratic solution:

W = (4 + (16 + 4*192).5)/2 = 16

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Anthony has a cup full of nickels and dimes worth $6.80. There are 82 coins all together.

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Step-by-step explanation:

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A triangle has one side length of 12 inches and another of 8 inches. Describe all possible lengths of the third side. Show and e

katrin [286]

Answer:

The third side must be smaller than 20 inches and greater than 4 inches

$4$

Step-by-step explanation:

Let a, b and c be the lengths of triangle's sides. Then

$a+b>c\\ \\a+c>b\\ \\b+c>a$

Use this rule in your case. So, if a=12 and b=8, then

$12+8>c\\ \\12+c>8\\ \\8+c>12$

Hence, you get

$c-4\\ \\c>4$

From these inequalities, you can state that

$4$

So, c must be smaller than 20 inches and greater than 4 inches.

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2 years ago

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What is the gcf of 18 and 54

katrin2010 [14]

Answer:

18 is the GCF

Step-by-step explanation:

Factors of 18: 1, 2, 3, 6, 9, 18

Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54

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2 years ago

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The sector of a circle with a 60 millimeters radius has a central angle measure of 30° . What is the exact area of the sector in

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R = 60
60^2 * pi = 3600 * pi
angle = 30°
3600pi / 30 = 120pi
the answer is 120 * pi

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