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3 years ago

1.Simplify the following Expression a. 3y2 + 8y - 12 + 6x – 4y + 2y2

Mathematics

1 answer:

tankabanditka [31]3 years ago

3 0

Answer:

5y2 + 4y - 12 + 6x

Step-by-step explanation:

3y2 + 2y2 + 8y - 12 + 6x

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The equation of the line whose slope is -2 and y-intercept is (0,-8)

Artemon [7]

Answer:

y=-2x-8

Step-by-step explanation:

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3 years ago

A high school club has 10 members who are seniors and 8 members who

Taya2010 [7]

Answer:

The probability that the person will not be a senior

P(E⁻) = 1 - P(E)

= $1- \frac{5}{9} = \frac{4}{9}$

Step-by-step explanation:

<u><em>Explanation</em></u>:-

Given A high school club has 10 members who are seniors and 8 members who are juniors

n(S) = 10 + 8 = 18

If a member is randomly selected to be the club president

Let 'E' be the event that the person will be a senior

The probability that the person will be a senior

$P(E) = \frac{n(E)}{n(S)}$

$P(E) = \frac{n(E)}{n(S)} = \frac{10}{18} = \frac{5}{9}$

The probability that the person will not be a senior

P(E⁻) = 1 - P(E)

= $1- \frac{5}{9} = \frac{4}{9}$

6 0

3 years ago

Clue #1: The sum of the digits of a 3 digit number is 20. Clue #2: The tens digit is 2 less than the hundreds digit. Clue #3: Th

o-na [289]

Answer: The number is 974

Step-by-step explanation:

First, any 3 digit number can be written as:

N = a*100 + b*10 + c

Where a, b, and c are single-digit numbers.

a is the hundreds digit

b is the tens digit

c is the unit digit

We can write the clues as:

#1: a + b + c = 20

#2: b = a - 2

#3: c = a + b - 12

Then we have a system of equations:

a + b + c = 20

b = a - 2

c = a + b - 12

To solve this, we need to isolate one of the variables in one equation and then replace this in the other equations, we can see that b is already isolated in the second equation, then we can replace that in the first and third equations:

a + (a - 2) + c = 20

c = a + (a - 2) - 12

Now we can see that c is isolated in the second equation, then we can replace that in the first one to get:

a + (a - 2) + (a + (a - 2) - 12) = 20

Now we can solve this for a:

a + a - 2 + a + a -2 - 12 = 20

4*a - 16 = 20

4*a = 20 + 16

4*a = 36

a = 36/4 = 9

With this, we can find the values of b and c.

b = a - 2 = 9 - 2 = 7

c = a + b - 12 = 9 + 7 - 12 = 4

Then the 3-digit number is:

N = a*100 + b*10 + c = 9*100 + 7*10 + 4 = 974

N = 974

6 0

3 years ago

Please help as soon as possible thank you

musickatia [10]

Answer:

what do you need help with

Step-by-step explanation:

3 0

3 years ago

Need help ASAP!!!!!!!!!!!!!!!!!

rosijanka [135]

Answer:

A 97

Step-by-step explanation:

Adds to 180 degrees. 83 + 97 = 180

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2 years ago