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3 years ago

You roll a number cube twice. Find the probability of the event. Rolling a 1 then a 2.

Mathematics

1 answer:

kap26 [50]3 years ago

7 0

P( 1) = 1/6
P(2) = 1/6

Probability of 1 then 2 = 1/6 * 1/6 = 1/36

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The scatterplot shows the selling prices of homes and the square feet of living space.

Oksana_A [137]

Answer:

✔ a strong positive

✔ strengthen

✔ increase

ED2021

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2 years ago

3x + 4y = 27 5x - 3y = 16

Serhud [2]

Answer:

The lines will cross at (5,3)

Step-by-step explanation:

3 0

3 years ago

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Perform the indicated operation. 15b/4 * 8/9a^2b^2

Sergio [31]

Answer:

The simplified expression is $\frac{10}{3 a^2 b}$

Step-by-step explanation:

The given expression is:

$\frac{15b}{4} * \frac{8}{9a^2 b^2}$

Multiply the items in the numerator together ( 15b * 8 = 120 b). Also multiply the items in the denominator together ( 4 * 9a²b² = 36a²b²). The expression thus becomes:

$= \frac{120b}{36 a^2 b^2} \\\\$

Divide both the numerator and the denominator by 12b:

$= \frac{120b /12b}{36 a^2 b^2/12b}$

The expression finally becomes:

$= \frac{10}{3 a^2 b}$

7 0

3 years ago

Which best describes the relationship between the lines? 2x – y = −7 2x + 4y = 2

seropon [69]

Answer:

Perpendicular

Step-by-step explanation:

2x - y = -7

2x + 4y = 2

-y = -2x - 7

4y = -2x + 2

y = 2x + 7

y = -1/2x + 1/2

Cannot be:

Parallel because the slope would otherwise be the same.

Same line because the equation is not proportional

So, they are perpendicular because a perpendicular line would be a negative and a reciprocal of the current line

8 0

2 years ago

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How would you write this equation in terms of sin and cos as well as simplify it from there?

ziro4ka [17]

Try this option:
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$= \frac{sin^2x-cos^2x-sin^2x-cos^2x}{sin^2x}=- \frac{2cos^2x}{sin^2x}.$
or -2ctg²x

8 0

3 years ago