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makkiz [27]
3 years ago
13

I need help in #3 and 4

Mathematics
2 answers:
seropon [69]3 years ago
6 0

Answer:

3- B (50$ Earned - Graph B is 25 (25 * 10 = 250))

4- 2 Outfits

Step-by-step explanation:

500 (Start)

- 273.98

= 226.02

7.23 * 3

= 21.69

21.69

+ 42.36

= 64.05

226.02

- 64.05

= 161.97

161.97 / 78.12

= 2.07

KengaRu [80]3 years ago
4 0
The answer to Number 3 is B
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True or false? The quadratic equation 10p2 - 5p = -8 has one solution.
pav-90 [236]

Answer: False

=============================================

Explanation:

I'll use x in place of p.

The original equation 10x^2-5x = -8 becomes 10x^2-5x+8 = 0 after moving everything to one side.

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We have

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Plug those three values into the discriminant formula below

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The discriminant is negative, which means we have no real solutions. If your teacher has covered complex or imaginary numbers, then you would say that the quadratic has 2 complex roots. If your teacher hasn't covered this topic yet, then you'd simply say "no real solutions".

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6 0
2 years ago
NEED ANSWER ASAP!!<br> Find x
sineoko [7]

Step-by-step explanation:

\frac{48}{2x + 7}  =  \frac{40}{5x - 2}  \\ 48(5x - 2) = 40(2x + 7) \\ 240x - 96 = 80x + 280 \\ 240x - 80x = 96 + 280 \\ 160x = 376 \\  \frac{160x}{160}  =  \frac{376}{160}  \\ x = 2.35

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3 years ago
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