Subtract (3u-3)(u+3)

Mathematics

1 answer:

laiz [17]3 years ago

5 0

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Note 1: A constant number (A number without an exponent) will have the degree of 0. Always.
Note 2: A variable without a visible exponent obtains an exponent of 1. Ex. x = $x^{1}$
Note 3: The operation sign before a coefficient/constant indicates if it's positive or negative. If no subtraction (or even addition) sign is in front of a value, it's positive. If a subtraction sign stands in front of a value, the value is negative. If an addition sign stands in front of the value, the value is negative.
Note 4: When a number is not standing in front of a variable, it translates to 1 times that variable. Ex. x = 1x
Note 5: coefficients contain a number and a variable.
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1: Remove Parentheses [we do this by distributing what's in the parentheses by 1. For the first part (3u-3), you can simply just remove the parentheses because it doesn't affect what's in the parentheses whatsoever. For the second one, however, you distribute -1 to the second part (u+3) which gets us -u - 3]

Answer: 3u-3 - u - 3

2: Order, sort, and combine the like terms.
View attachment.

3: Solve.
3u - u - 3 - 3
(3u - u) -3 - 3
$3u - (1)u = 3 - 1, u = 2u$
Answer: $2u$
2u (-3 - 3 [= -6])
Answer: -6

So 2u - 6

Read more about graphs at:

brainly.com/question/20853486

3 0

3 years ago

In an experiment, there are n independent trials. for each trial, there are three outcomes, a, b, and

zimovet [89]

The formula for a binomial probability function is the one that is attached to the image.
Where:
n = number of trials.
x = number of successes from which you want to know the probability.
p = probability of obtaining success.

In this case, success is defined as obtaining a result of type a.
We look for the probability of obtaining 4 results of type a.
So:
n = 10.
x = 4.
p = 0.70.
In this way:
P (x = 4) = 0.0368.

If we now look for the probability of obtaining 5 results of type b.
So:
n = 10.
x = 5.
p = 0.20.
P (x = 5) = 0.0264.

Finally, the probability of obtaining 1 result of type c.
n = 10.
x = 1.
p = 0.1.
P (x = 1) = 0.387.
Finally, the probability of obtaining 4 results of type a, 5 of type b and 1 of type c is:
P (4a + 5b + 1c) = 0.0368 * 0.0264 * 0.387.
P = 0.0376%

3 0

4 years ago

Matt can walk 500 m from his home on King Street, and then 900m along Queen Street to go to his school. He can also walk across

brilliants [131]

Answer:

He walks 1030 meters if he walks across the park.

Step-by-step explanation:

In order to solve this question we will need to know that $c^{2} = a^{2} + b^{2}$ (were c is the length of the hypotenuse (the diagonal line) of a right angle triangle, and a and b are the legs (the sides that form a right angle). So them means that.....