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3 years ago

A 16-ft ladder is placed 4 ft. from the base of a

Mathematics

2 answers:

Alex73 [517]3 years ago

8 0

Answer:

You have a right triangle.

a^2+b^2=c^2

4^2+b^2=256

16+b^2=256

b^2=256-16

b^2=240

b=sqrt240

b=15.49 ft. ans. for the height of the ladder up the wall.

Step-by-step explanation:

stepan [7]3 years ago

7 0

Answer:15.5

Step-by-step explanation:4^2 + h^2 = 16^2

h^2 = 256 - 16 = 240 = 16*15

h = 4 square root 15

h = 15.5

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seraphim [82]

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Answer:

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Step-by-step explanation:

Like terms are ones that have the same variable, or that have no variable at all.

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3 years ago

What is 2x+y=12 and 3x-18=y which are linear equations but need to be solved by elimination

Sidana [21]

Answer:

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Step-by-step explanation:

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3 years ago

Verify the identity 6cos^2(x) -3 = 3 - 6sin^2(x)

Lorico [155]

Answer:

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So, from equation (1) we can write that

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Hence, it is proved that $6\cos ^{2}x -3 = 3 - 6\sin ^{2} x$ . (Answer)

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3 years ago

The area of an 20 -cm-wide rectangle is 440 cm. What is its length?

Nataly [62]

Answer:

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Step-by-step explanation:

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3 years ago

Takashi ran 200 yards in 40 seconds Ana ran 150 yards in 25 seconds can u tell who runs faster without rewriting the rates expla

Marina86 [1]

150 is smaller than 200 so 25 is smaller than 40, but 25, in perspective to the numbers, is much smaller than 40. Ana is faster.

Check:

Takashi: 200 divided by 400 equals 5 yd/sec
Ana: 150 divided by 25 equals 6 yd/sec

7 0

3 years ago

Read 2 more answers