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stiv31 [10]
3 years ago
7

A 19 foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on level ground if 18 f

oot from the base of the building.
Mathematics
2 answers:
dexar [7]3 years ago
5 0

Answer:

Square root of 37, about 6.08

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

18^2 + b^2 = 19^2

324 + b^2 = 361

b^2 = 37

b= sqrt37

b about equal to 6.08

yaroslaw [1]3 years ago
3 0

Answer:

The answer would be <em>3</em><em>4</em><em>2</em>

Step-by-step explanation:

<em>Multiply </em><em>1</em><em>9</em><em> </em><em>by </em><em>1</em><em>8</em><em> </em><em>and </em><em>you </em><em>get </em><em>3</em><em>4</em><em>2</em>

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8 0
3 years ago
If x - y=5, x + y = 59, and x &gt; y, what is the value of xy?
nlexa [21]

Answer:

864

Step-by-step explanation:

∵X-Y=5    and.  

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∴2X=64

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∴32 - Y=5

∴Y = 27

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6 0
3 years ago
Read 2 more answers
Prove this trigonometric identity<br>sin ​3x/sin x - cos 3x/cos x =2
Sveta_85 [38]

Step-by-step explanation:

LHS= sin 3x/sin x - cos 3x/cosx

Taking LCM,

<u>=</u><u>sin3xcosx- cos3xsinx</u>

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<u>=</u><u>sin(3x-x)</u>

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2sinxcosx

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8 0
4 years ago
If a rectangular area is rotated in a uniform electric field from the position where the maximum electric flux goes through it t
Greeley [361]
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7 0
3 years ago
Please answer me .....
andrew11 [14]

Answer:

a. 2x -3

b. 7

Step-by-step explanation:

a. The expression that represents the difference is sales between the two sales will be:

9x - (7x + 3) = 9x - 7x - 3 = 2x - 3

b. What we do here is to simply substitute the value of 5 for x

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We have this as:

2(5) -3

= 10-3 = 7

4 0
3 years ago
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