I need the answer to these fast. Plz Help... Thank you!!!!!!

Mathematics

2 answers:

a_sh-v [17]3 years ago

3 0

Anything in absolute value signs like this |-1| is positive so it would be positive 1 instead of negative. For instead question one is -1. Hope this helps you!

lara [203]3 years ago

3 0

Answer:

1. 31

2. 31

3. 53

4. 53

5. 15

6. 15

7. 9

8. 9

9. 1.5

10. 27.5

I can't see all of 11 but i hope this helps

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Solve the system of equations by graphing

fiasKO [112]

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Step-by-step explanation:

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3 years ago

What is an x and y intercept for 14x+y=140

DanielleElmas [232]

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4 0

4 years ago

PLEASE ANSWER ASAP

hjlf

It is known
$\dfrac{\pi}{6} =30^{\circ}$ and
$\cos \dfrac{\pi}{6}= \dfrac{ \sqrt{3} }{2}$ (if you want to determine cosine of 30° you should draw the perpendicular line to the x-axis and find the point of intersection, the value of x-coordinate is the cosine of 30°).

The angle $\dfrac{5\pi}{6} =150^{\circ}$ and
$\cos \dfrac{5\pi}{6}=- \dfrac{ \sqrt{3} }{2}$ (see image).
The angle $\dfrac{7\pi}{6} =210^{\circ}$ and

$\cos \dfrac{7\pi}{6}=- \dfrac{ \sqrt{3} }{2}$ (see image).