3 years ago

Answer 2 + 2 = freepoint

Mathematics

2 answers:

madreJ [45]3 years ago

7 0

Answer:

Step-by-step explanation:

valentinak56 [21]3 years ago

5 0

Answer:

Step-by-step explanation:

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Questione Simplify Cosa + 2Cos(a +240")

melamori03 [73]

Step-by-step explanation:

$\cos(a) + 2 \cos(a + 240)$

$\cos(a) + 2 \cos(a) \cos(240) - \sin(a) \sin(240)$

$\cos(a) + 2( - \frac{ \cos(a) }{2} + \frac{ \sqrt{3} }{2} \sin(a) )$

$\cos(a) - \cos(a) + \sqrt{3} \sin(a)$

$\sqrt{3} \sin(a)$

If you graph the new identity, and the og identiy, they will be conciding graphs, so they are the same identity.

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2 years ago

Which values for x and y make the statement (x + 5)(y - 6) = 0 true?

-BARSIC- [3]

<span> $||Solving \ for \ x. ||$ </span>

$(x + 5)(y - 6) = 0$

$(x + 5)(y - 6) = 0 :x$

$
x+5=0
 
$ $|Divide \ both \ sides \ by \ y-6|$

$
x=-5
 
$ $|Subtract \ 5 \ from \ both \ sides|$

$||Solving \ for \ y. ||$

$
y-6=0
 
$ $|Divide \ both \ sides \ by \ x+5|$

$
y=6
 
$

$Solution =\ \textgreater \ x = -5, y = 6$

6 0

3 years ago

How many solutions does y-10 =2x have

Travka [436]

Y= 2x+10 would be the equation and it would have no solution because there's no value if x nor y

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3 years ago

In the equation below, identify the constant ; 4(x+1) -7x = -11

castortr0y [4]

Answer:

It will be A because of if you round it it would be -7

3 0

3 years ago

The prices of tickets for the local rock concert were $16 for Friday night and $28 for Saturday night. The total attendance for

ASHA 777 [7]

Let x: number of tickets that sold on Friday, y: number of tickets that sold on Saturday night

16x+28y=24232
x+y=1090
x=1090-y,
so 16(1090-y)+28y=24232
17440-16y+28y=24232
12y=6792
y=566. As a result, there will be 566 tickets sold on Saturday night. Hope it help!

4 0

3 years ago

Read 2 more answers

Answer 2 + 2 = freepoint​

Answer 2 + 2 = freepoint