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Evgen [1.6K]
3 years ago
13

I NEED HELP ASAP (will give brainiest) 20 POINTS

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

the anwser is y=5600

I'm going to just go by this because of research and you didn't show the 4 problems so if this fixes your question then there you go

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Which expression is equivalent to 5(2+7)?<br> A. 2(5+7)<br> B. 2+7(5)<br> C. 5(2)+7<br> D. 5(2)+5(7)
Kipish [7]
Hope this helps but I this helps but I think the answer is D if not then try B
8 0
3 years ago
Read 2 more answers
Find the circumcenter of the triangle with vertices at A(2,4),<br> B(8, 4), and C(6, 10).
e-lub [12.9K]
I believe the answer is (5, 6.333)
4 0
2 years ago
Match each fraction with its equivalent decimal number. 2/5, 7/20, 3/25, 7/10
nata0808 [166]

2/5- .4

7/20- .35

3/25-  .12

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5 0
3 years ago
1.44 x 106<br> In standard form
Lorico [155]

Answer: The way you would write this in standerd form would be like this one  point fourty four times one hundered six. Let me know if this correct or not.

Step-by-step explanation:

3 0
3 years ago
3 sinx + 4 cosx = 5
vagabundo [1.1K]
<span>3sinx+4cosx=5
     => 3/5 sinx +4/5 cosx = 1
     let cosA=3/5   => sinA=4/5
     =>  cosAsinx + sinAcosx = 1
     =>  sin(x+A) = 1
Now,
       4sinx - 3cosx
  =   5(4/5sinx - 3/5 cosx)     [multipying numerator and denominator by 5]
  =   5(sinAsinx - cosAcosx)
  =   -5{cos(x+A)} = -5[root{1-(sin(x+A)^2)}] = -5 x 0 = 0          Ans 0
 
TRICK: if asinx+bcosx is given then multiply numerator and denominator by root(a^2 +b^2)
            this method is useful  in many questions </span>
7 0
3 years ago
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