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steposvetlana [31]
1 year ago
12

2. Investigate the equation y=x2-3.

Mathematics
1 answer:
Feliz [49]1 year ago
8 0
Swap the sides so that all the terms of the variables are on the left side

x2+3=y

Subtract 3 from both sides

x2=y-3
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Help bbbbbbbbbbbbbbbbbbb
Sergio [31]

Answer:

1

Step-by-step explanation:

it is 6/6

if it is right brainliest pls thanks

6 0
2 years ago
Read 2 more answers
90 men can complete a work in 24 days working 8 hrs a day. how many men are required to complete the same work in 18 days workin
JulsSmile [24]

Answer:

128 men

Step-by-step explanation:

90 × 28 × 8 = M × 18 × 15/2

M = 128

7 0
3 years ago
Given sin thata = 2/5 and 0° < thata < 90°. find sin 2 thata​
Andrej [43]

Recall the double angle identity:

\sin2\theta=2\sin\theta\cos\theta

With \theta measuring between 0º and 90º, we know \cos\theta>0. So from the Pythagorean identity, we get

\sin^2\theta+\cos^2\theta=1\implies\cos\theta=\sqrt{1-\sin^2\theta}=\dfrac{\sqrt{21}}5

Then

\sin2\theta=2\dfrac25\dfrac{\sqrt{21}}5=\dfrac{4\sqrt{21}}{25}

5 0
3 years ago
Can some one help me with the questions?
Katen [24]
Notice that x+4 is one of the denominators, and that x(x+4) is the LCD.
                      x
Thus, mult. ------- by x(x+4), obtaining  x^2.  
                    x+4
Next, mult. [ 1/x + 1/(x+4) by x(x+4), obtaining   x+4 + x = 2x+4 or 2(x+4)
                                                                x^2
Then the simplified fraction becomes  ----------
                                                              2(x+4)

Generally Brainly allows you to post only 1 or 2 questions at a time.  I will do #15 as a courtesy to you, but want you to try #16 yourself (or to post it separately).

-4, 2, 8, 14, ...  is an arithm. seq.  Every new term is equal to the previous term, plus 6:  -4+6 = 2; 2+6=8, and so on.  Thus:  first term is a = -4; common difference is d = 6

a(50) = a(1) + (50-1)(6), or   a(50) = -4 + (49)(6) = 290 (answer)


6 0
3 years ago
Plz help............................
Natasha2012 [34]
1.) Factor 9u^2-12u
\frac{3u(3u-4)}{3u}

2.) Cancel any common factors (in bold will be the terms eliminated)
\frac{3u(3u-4)}{3u}

Final answer is: 3u-4

Therefore, the answer is C. 3u-4


5 0
3 years ago
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