3 years ago

(s - 2)(2s - 12) please helpppppppp

Mathematics

1 answer:

AURORKA [14]3 years ago

5 0

If you do the box method

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Find b given that A (-6, 2), B (b, 0), and C (3,-4) are collinear.

nydimaria [60]

Answer:

b = -3.

Step-by-step explanation:

If the 3 points are collinear then:

Slope of AB = Slope of BC and so

(0-2)/(b + 6) = (-4-0)/( 3 - b)

-4(b + 6) = -2(3 - b)

-4b - 24 = -6 + 2b

-24 + 6 = 2b + 4b

6b = -18

b = -3.

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3 years ago

At a school football game, in the stands there were 20 teachers. 8 of them were math teachers, 2 were social studies teachers, a

yuradex [85]

Answer (simplified ): 1:2

8 + 2 = 10/20
In ratio form that is 10:20

10:20 *simplified by 5* = 5:10

5:10 *simplified by 5* = 1:2

Or you can simplify 10:20 by 10 and then just get 1:2 as your ratio answer

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3 years ago

Simplify this complex fraction 4/3/2/5

olga2289 [7]

Answer:

3 1/3

Step-by-step explanation:

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Whoever gets it right can have brainliest but answer ASAP!

DaniilM [7]

Answer:

3 1/3

Step-by-step explanation:

Multiply

2 1/2 * 1 1/3 = 20/6

Simplify

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A 12-member jury is to be selected from 15 men and 13 women. Find the probability that this jury has 6 or 7 males.

Bas_tet [7]

Answer:

The right solution is "0.5545".

Step-by-step explanation:

According to the question,

The probability of having 6 or 7 males will be:

= $P(6 \ males)+ P(7 \ males)$

= $\frac{15_C_6\times 13_C_6}{28_C_{12}} + \frac{15_C_7\times 13_C_5}{28_C_{12}}$

= $\frac{5005\times 1716+6435\times 1287}{30421755}$

= $\frac{16870425}{30421755}$

= $0.5545$

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3 years ago