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OLga [1]
3 years ago
7

IF UR GOOD AT PRECALC PLEASE HELP

Mathematics
2 answers:
jek_recluse [69]3 years ago
5 0
The answer is C hope this helps
Trava [24]3 years ago
3 0

Answer:

Answer is C, u can find this just by looking at domain

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PLEASE HELP!!!!! HURRY
svp [43]
Its c first find area of the whole thing with piece cut out.(240) then of the cut out piece (12) 240-12=228 C
7 0
3 years ago
Answer this please I need a real answer
Anna11 [10]

Answer:

see explanation

Step-by-step explanation:

(a)

x² + 2x + 1 = 2x² - 2 ( subtract x² + 2x + 1 from both sides

0 = x² - 2x - 3 ← in standard form

0 = (x - 3)(x + 1) ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x - 3 = 0 ⇒ x = 3

-----------------------------------

(b)

\frac{x+2}{3} - \frac{2}{15} = \frac{x-2}{5} ( multiply through by 15 to clear the fractions )

5(x + 2) - 2 = 3(x - 2) ← distribute parenthesis on both sides

5x + 10 - 2 = 3x - 6

5x + 8 = 3x - 6 ( subtract 3x from both sides )

2x + 8 = - 6 ( subtract 8 from both sides )

2x = - 14 ( divide both sides by 2 )

x = - 7

--------------------------------------------

(c) Assuming lg means log then using the rules of logarithms

log x^{n} ⇔ nlogx

log x = log y ⇒ x = y

Given

log(2x + 3) = 2logx

log(2x + 3) = log x² , so

x² = 2x + 3 ( subtract 2x + 3 from both sides )

x² - 2x - 3 = 0

(x - 3)(x + 1) = 0

x = 3 , x = - 1

x > 0 then x = 3

6 0
3 years ago
Which function has the same domain as y = 2 StartRoot x EndRoot
snow_lady [41]
The answer is A. Y=square root of 2x
4 0
3 years ago
How large a wave would be generated from a 50 mph wind, with a 1420 mile fetch, over a 69 hour period be?
Evgesh-ka [11]
Beaufort force 9 severe gale.  After 8-10 hours of constant force the average height would be about 7 meters.
8 0
3 years ago
Read 2 more answers
a nursery owner buys 7 panes of glass to fix some damage to her greenhouse. The 7 panes cost $16.45. Unfortunately, she breaks 2
kupik [55]

Answer:

It would be $ for 2 other planes of glass because if you take 7 divided by 7 to get 1 pane of glass you have to divide 16.45 by 7 to get how much it costs for 1 pane of glass. So for 1 pane of glass, it is $2.35 then lastly you can either add 2.35 and 2.35 to get $4.70 or take 2.35 times 2 to get your total. So it will cost $4.70 to get 2 panes of glass.

Step-by-step explanation:

7 0
2 years ago
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