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Vanyuwa [196]
3 years ago
8

Simplify the expression –3(x + 3)2 – 3 + 3x. What is the simplified expression in standard form?

Mathematics
2 answers:
kolezko [41]3 years ago
8 0

Answer:

-3x^2-15x-30

Step-by-step explanation:

The given expression is -3(x+3)^2-3+3x.

We expand to obtain:

-3(x^2+6x+9)-3+3x.

We apply the distributive property to get:

-3x^2-18x-27-3+3x.

Group and combine the like terms;

-3x^2-18x+3x-27-3.

-3x^2-15x-30.

This polynomial expression is in standard form because it is descending powers of x.

Yuliya22 [10]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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Order the numbers from least to greatest. 0.3, 9/25, 33%, 0.35
Finger [1]

Answer:

0.3(least)

0.33

0.35

0.36(greatest)

Step-by-step explanation:

Okay, so first we need to have all of our numbers in the same category of variable. So first, we will convert 9/25 to a decimal.

To do that, we must divide 9 by 25 to get our answer of 0.36.

Now, we will convert the 33% to a decimal by dividing it by 100 to get 0.33

We now have our list, which should be ordered as:

0.3

0.33

0.35

0.36

5 0
3 years ago
Bus A leaves the station every 30 mins bus b leaves the station every 20 mins at 10 am both buses leave the station together wor
denis-greek [22]

Answer: 11am

Step-by-step explanation:

To solve this, we have to calculate the lowest common multiple of 20 and 30. This will be:

20 = 20, 40, 60, 80, 100

30 = 30, 60, 90, 120, 150.

Here, the lowest common multiple is 60.

Therefore, we add 60 minutes to 10am. This will be:

= 10am + 1 hour

= 11 am

The next time that both buses leave at the same time would be 11am

3 0
3 years ago
How to solve y in -(y+9)=10
Allisa [31]

Answer:


Step-by-step explanation:

- (y+9) = 10


Multiply through by -1 gives us


y+9 = -10


Subtract 9 from both sides


y = -19


That's your answer.


If you work it through it satisfies the equation.


That is:


- (-19 +9) = 10


-(-10) = 10


10 = 10


Boo ya!

5 0
3 years ago
-4 -2 0 2 4 form the set of even integers true or false
GenaCL600 [577]

Answer:

True

Step-by-step explanation:

An integer is anything that's not a fraction/decimal, and being even is common knowledge

3 0
3 years ago
Read 2 more answers
Help me plz and god bless :/
Lelechka [254]

Upper quartile would be 4.5. The interquartile range could be 6.

6 0
3 years ago
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