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Harlamova29_29 [7]

3 years ago

12

OMG GUYS I NEED SOME HELP I DIDNT KNOW MY SCHOOL ENDS TODAY AND IM FREAKING OUTT!!! ILL GIVE ALL MY POINTS AWAY IF SOMEONE HELPS

MEEEEEE!!!!

2 answers:

Anna007 [38]3 years ago

7 0

What school is it, and what help do you need?

viktelen [127]3 years ago

7 0

Yeah with what.. what do you need help with

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The average of 3 of your quiz grades are 17 points. Two of your quizzes is 14 and 19 points. Write and solve an equation to find

dsp73

(17*3) --- to find the total points of the 3 quizzes
17*3=51
the third quiz grade=51-14-19=18
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3 years ago

Which of the following correctly expresses sin (70) + sin(30) as a product?

JulsSmile [24]

Answer:

2sin50 cos20

Step-by-step explanation:

We need to write sin (70) + sin(30) as a product. The formula used here is :

$\sin A+\sin B=2\sin (\dfrac{A+B}{2})\cos(\dfrac{a-b}{2})$

Here, A = 70 and B = 30

So,

$\sin 70+\sin 30=2\sin (\dfrac{70+30}{2})\cos(\dfrac{70-30}{2})\\\\\sin 70+\sin 30=2\sin 50\cos20$

So, the value of sin (70) + sin(30) is 2sin50 cos20. Hence, the correct option is (c).

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3 years ago

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Answer:

B

Step-by-step explanation:

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3 years ago

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Find the average.<br><br> 11,16,15,22<br><br> A.64<br> B.15<br> C.17<br> D.16

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13(6x – 5) – x = 13 – 2(x + 1

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Answer:

Step-by-step explanation:

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