3 years ago

Need to know the answer to this picture

Mathematics

1 answer:

pshichka [43]3 years ago

5 0

X = yz/a
ax = yz
/y /y

AX / Y = Z

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A ladder is leaning against a

vlada-n [284]

Answer:

The angle of elevation is 36.87 degrees

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC of the figure

$cos(\theta)=\frac{AC}{BC}$ ----> by CAH (adjacent side divided by the hypotenuse)

substitute the given values

$cos(\theta)=\frac{12}{15}$

$\theta=cos^{-1}(\frac{12}{15})=36.87^o$

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2 years ago

What value of "a" makes the system 3x-y=17 and ax+y=-7 have no solution?

Norma-Jean [14]

Answer:

y=-7-ax

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3x+7+ax=17

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3 years ago

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Answer:

Mean = 90, Median = 93, Mode = 90, Range = 6

Step-by-step explanation:

Mean:

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463 ÷ 5 = 92.5

92.5 to nearest tenth = 90

Mean = 90

Median:

90, 90, 93, 94 ,96

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Mode

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Range:

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2 years ago

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Aleksandr-060686 [28]

123 :D hope I helped

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3 years ago

Simplify the following expressions.

dem82 [27]

Answer:

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