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LenaWriter [7]
3 years ago
11

A certain television is advertised as a 41-inch TV (the diagonal length). If the width of the TV is 40 inches, how many inches t

all is the TV?
Mathematics
2 answers:
Bumek [7]3 years ago
6 0

Answer:

9 inches tall

Step-by-step explanation:

Use the Pythagorean theorem: you know the hypotenuse (41) and the leg (40)

a^{2} +40^{2} =41^{2}

Solve for a:

Simplify exponents

a^2+1600=1681

Subtract 1600 from both sides

a^2+1600-1600=1681-1600\\a^2=81

Find the square root

\sqrt{a^2}=\sqrt{81\\}  \\a=9

KengaRu [80]3 years ago
5 0

Answer:

9 inches

Step-by-step explanation:

A^2+b^2=c^2 so

40^2+b^2=41^2

1600+b^2=1681

so b^2=81

so b=9

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All answers are correct
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3 years ago
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How do I do this question
Alekssandra [29.7K]
We know that
circumference=2*pi*r
for r=65/2----> r=32.5 cm
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so
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x rev------------> 3200 m
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3 years ago
Write a decimal that is greater than 0.62% and less than 0.64%
svetlana [45]

Answer:

0.63%

Step-by-step explanation:

its literally in between the numbers

5 0
2 years ago
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Find the value of r in (4, r), (r, 2) so that the slope of the line containing them is −53
Elan Coil [88]

Answer:

C) 7

===========================================

Work Shown:

Use the slope formula

m = (y2-y1)/(x2-x1)

Plug in the given slope we want m = -5/3 and also the coordinates of the points. Then isolate r

m = (y2-y1)/(x2-x1)

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14 = 2r

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2r/2 = 14/2 .... dividing both sides by 2

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The slope of the line through (4,7) and (7,2) should be -5/3, let's check that

m = (y2-y1)/(x2-x1)

m = (2-7)/(7-4)

m = -5/3

The answer is confirmed

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Answer:

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Step-by-step explanation:

R1 means there is 1 left after dividing everything

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3 years ago
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