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weeeeeb [17]
3 years ago
5

Solve the equation by using the quadratic formula.

Mathematics
2 answers:
Luda [366]3 years ago
7 0

Answer:

The answer is B

Step-by-step explanation:

Sergeeva-Olga [200]3 years ago
4 0

Answer:

B

Step-by-step explanation:

2x² + 5x -3 = 0

2x² - x + 6x - 3 = 0

x(2x-1) + 3(2x-1) = 0

(x+3) (2x-1) = 0

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Percy earns a greater hourly wage of $7.50 at the library. 
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Solve the inequality. x + 7 > 11 A. x> 18 B. x> −4 C. x > 4 D. x> −18
mixas84 [53]

Answer:

c. x>4

Step-by-step explanation:

subtract 7 from both sides. 11-7=4

x>4

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3 years ago
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A shape is made of 12 right triangles of equal size each right triangle has a base of 4 centimeters and a height a 5-cm what is
mart [117]

Answer:

120\ cm^2

Step-by-step explanation:

The area (A_t) of a triangle is equal to half the product of its length (L) because of its height (h).

A_t = 0.5h*L

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The height of the triangles is h = 5\ cm

Then the area of one of the triangles is:

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The figure is formed by 12 equal triangles, then the area of the figure (A_f) is:

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3 0
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Which of the following is another name for a proof by contradiction?
andrew-mc [135]

Answer:

C. Indirect Proof

Step-by-step explanation:

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