3 years ago

Help plz with math! #7 giving brainlist

Mathematics

1 answer:

pav-90 [236]3 years ago

8 0

I believe the answer is the second one.

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This is my next Trigonometry question I am needed help on- I just want to be sure I've got it right, or if not, then the steps I

Reptile [31]

$\bf cos(\theta)=\cfrac{3}{5}\cfrac{\leftarrow adjacent=a}{\leftarrow hypotenuse=c}
\\\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-a^2}=b\implies \pm\sqrt{5^2-3^2}=b
\\\\\\
\pm\sqrt{16}=b\implies \pm4=b$

so, plus or minus? well, the angle is in the 1st quadrant, and on that quadrant, both cosine and sine are positive, so 4 = b

$\bf tan(\theta)=\cfrac{opposite}{adjacent}\implies tan(\theta)=\cfrac{4}{3}$

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4 years ago

Which equation represents the relationship shown in the table?

jeka94

Answer:

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Step-by-step explanation:

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3 years ago

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netineya [11]

Answer:

Step-by-step explanation:

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2 years ago

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A city has 3 new houses for every 7 old houses. If there are 24 new houses in the city, how many old houses are there?

kramer

Answer:

B. 56

Step-by-step explanation:

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3 years ago

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Schach [20]

Answer:

Step-by-step explanation:

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4 years ago