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4 years ago

M² +2m, m²-u, m² +3m +2

Mathematics

1 answer:

alexira [117]4 years ago

4 0

Answer:

=2m³−m²u+m²+3m+2

Step-by-step explanation:

m²+2mm²−um²+3m+2

= m²+2m³+−m²u+3m+2

= 2m³−m²u+m²+3m+2

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Solve by substitution x+3y=5 -2x-4=-5

likoan [24]

Answer:

x = 1/2 , y = 3/2

Step-by-step explanation:

Solve the following system:

{3 y + x = 5

-2 x - 4 = -5

Hint: | Choose an equation and a variable to solve for.

In the second equation, look to solve for x:

{3 y + x = 5

-2 x - 4 = -5

Hint: | Isolate terms with x to the left hand side.

Add 4 to both sides:

{3 y + x = 5

-2 x = -1

Hint: | Solve for x.

Divide both sides by -2:

{3 y + x = 5

x = 1/2

Hint: | Perform a substitution.

Substitute x = 1/2 into the first equation:

{3 y + 1/2 = 5

x = 1/2

Hint: | Choose an equation and a variable to solve for.

In the first equation, look to solve for y:

{3 y + 1/2 = 5

x = 1/2

Hint: | Isolate terms with y to the left hand side.

Subtract 1/2 from both sides:

{3 y = 9/2

x = 1/2

Hint: | Solve for y.

Divide both sides by 3:

{y = 3/2

x = 1/2

Hint: | Sort results.

Collect results in alphabetical order:

Answer:{x = 1/2 , y = 3/2

3 0

3 years ago

True or false? A circle could be circumscribed about the quadrilateral below.

Mamont248 [21]

Answer: the answer is true

6 0

3 years ago

Read 2 more answers

An urn holds 5 white and 3 black marbles. if 2 marbles are to be drawn at random without replacement and x denotes the number of

Sedbober [7]

i = $p(0) = \frac {3} {8} x \frac {2} {7} = \frac
{3} {28} ; p (1) = \frac {3} {8} x \frac {5} {7} + \frac {5} {8} x \frac {3}
{7} = \frac {15} {28}; p (2) = \frac {5} {8} x \frac {4} {7} = \frac {5} {14}
$

(a) i. The probability mass function of X is 5 / 14

Hypergeometric Distribution is the probability distribution of a hypergeometric random variable.

The hypergeometric distribution is used to calculate the statistical importance of having drawn a specific k successes (out of n total draws) from the aforementioned population in the hypergeometric test uses.

ii. Please see attached image for the answer.