3 years ago

Find the value of the expression

Mathematics

1 answer:

astraxan [27]3 years ago

7 0

Answer:

Step-by-step explanation:

5*7 - 4*4

PEMDAS says multiply and divide first

35 - 16

Then add and subtract

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I need the answer to this question to check to see if im right

olga nikolaevna [1]

Your answer would be 17.
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3 years ago

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What is the greatest common factor of 150, 275 and 420

larisa [96]

Answer:

I believe the answer is 5!

Step-by-step explanation:

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3 years ago

Given that θ terminates in Quadrant III and tanθ 5/12= , find cscθ

Komok [63]

$\bf tan(\theta)=\cfrac{opposite}{adjacent}
\qquad \qquad 
csc(\theta)=\cfrac{hypotenuse}{opposite}
\\\\
-------------------------------\\\\
tan(\theta)=\cfrac{5}{12}\cfrac{\leftarrow opposite=b}{\leftarrow adjacent=a}\\\\
-------------------------------\\\\
\textit{let's use the pythagorean theorem to get the hypotenuse "c"}
\\\\\\
c^2=a^2+b^2\implies c=\pm\sqrt{a^2+b^2}\implies c=\pm\sqrt{12^2+5^2}
\\\\\\
\boxed{c=\pm 13}$

now, the square root gives us the +/- version, so.. which is it? well, the hypotenuse is just a radius unit, is never negative, just the radius unit, so just the absolute value of that or the version 13, so c = 13

now, that we know what the hypotenuse "c" is, well

$\bf csc(\theta)=\cfrac{hypotenuse}{opposite}\implies csc(\theta)\cfrac{13}{5}$