3 years ago

Please i need help!!!!!!

Mathematics

1 answer:

fomenos3 years ago

5 0

Answer:

circle

Step-by-step explanation:

A plot of the given points can help you figure this out.

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Absolute value for |27 1/4|

mr_godi [17]

Answer:

27 1/4

Step-by-step explanation:

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3 years ago

TSolve the system of equations below by graphing. What is the solution rounded to the nearest tenth? (–1.1, 3.2) (0.2, 2.8) (0.7

igor_vitrenko [27]

Answer: Answer:The solution to the given system of equations is (2.8,0.1)

Step-by-step explanation: I got it correct on the Unit Test

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3 years ago

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Find the value of sin(a/2) if cosa= 12/13<br>

daser333 [38]

Answer: sin $\frac{a}{2}$ = ± $\frac{1}{\sqrt{26} }$

Step-by-step explanation:

We very well know that,

cos2A=1−2sin²A

⟹ sinA = ± $\sqrt{(1-} \frac{cos2A}{2} )$

As required, set A = $\frac{a}{2}$ & cos a= $\frac{12}{13}$ ,thus we get

sin $\frac{a}{2}$ =± $\sqrt{\frac{1-cos a}{2} }$

∴ sin $\frac{a}{2}$ =± $\sqrt{\frac{1-\frac{12}{13} }{2} }$ = ± $\frac{1}{\sqrt{26} }$

since ,360° < $\frac{a}{2}$ <450°

,180° < $\frac{a}{2}$ <225°

Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.

hope it helped!

5 0

3 years ago

I'd Point A is located at (9,2) on a coordinate plane and point B is located at (-9,10), what is the distance between the two po

Fiesta28 [93]

Draw the triangle and then use Pythagoras' theorem

distance = $\sqrt{18 ^{2} +8 ^{2} }$
= 19.70 (2dp)

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3 years ago

3. company pays a greater annual salary? Show your Company A offers a semimonthly salary of $2432, and Company B offers a biweek

Eduardwww [97]

Company A offer
2,432×24(semimonthly)
=58,368 per year

Company B offer
2,390×26 (biweekly)
=62,140 per year

So company B pays a greater annual salary

Hope it helps!

5 0

3 years ago