2 years ago

In the expression -3×+4y-2 what are the variables

Mathematics

1 answer:

SSSSS [86.1K]2 years ago

7 0

Answer:

x and y are the variables

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How many real-number solutions does the equation have?

nevsk [136]

If the discriminant is negative no real solution exists.
If the discriminant is equal to 0 only one real solution exists.
If the discriminant is positive 2 real solutions exist.
The discriminant:
D = b² - 4 a c
1 ) - 7 x² + 6 x + 3 = 0
D = 6² - 4 · ( - 7 ) · 3 = 36 + 84 = 120 > 0
Answer: b) two solutions
2 ) - 8 x² - 8 x - 2 = 0
D = ( - 8 )² - 4 · ( - 8 ) · ( - 2 ) = 64 - 64 = 0
Answer: a ) one solution

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3 years ago

Solve the equation. Z -7= 3 12 7 Oz= 3 Oz=2 Oz=-21 Oz=21

Troyanec [42]

Answer:

What is equation?

Step-by-step explanation:

6 0

3 years ago

What are these fractions in simplest form?

Anton [14]

$\frac{16y^{3}}{20y^{4}} = \frac{4}{5y}$
$\frac{6xy}{16y} = \frac{3x}{8}$
$\frac{abc}{10abc} = \frac{1}{10}$
$\frac{mn^{2}}{pm^{5}n} = \frac{n}{pm^{4}}$
$\frac{12h^{3}k}{16h^{2}k^{2}} = \frac{3h}{4k}$
$\frac{8x}{10y} = \frac{4x}{5y}$
$\frac{24n^{2}}{28n} = \frac{6n}{7}$
$\frac{30hxy}{54kxy} = \frac{5h}{9k}$
$\frac{5jh}{15jh^{3}} = \frac{1}{3h^{2}}$
$\frac{20s^{2}t^{3}}{16st^{5}} = \frac{5s}{4t^{2}}$

8 0

3 years ago

I need help with this asap! i will give brainliest :) (image included)

trasher [3.6K]

7 x 3 = 21 so it is 21 ft cm your welcome

5 0

2 years ago

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A major stadium has 45,000 seats. If baseball fans have bought 5/8 of the seats for the next game, how many seats are available?

poizon [28]

The answer would be 28125 seats

Since 5/8 is equal to %62.5

6 0

3 years ago

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