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katrin [286]
3 years ago
11

4. Determine the following difference. (2x² + 3x - 10) - (x² - x + 111)  please explain

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0
Hi there! The answer is A.

(2x² + 3x - 10) - (x² - x + 111) 
Let's solve this problem step by step!

First work out the parenthesis. Because we multiply by negative 1, we mustn't forget to change the symbols in front of the factors.
2x² + 3x - 10 - x² + x - 111

Now rearrange our expression, in order to collect the terms later.
2x² - x² + x + 3x - 10 - 111

And finally collect the terms.
x² + 4x -121

The answer is A.
~ Hope this helps you!
hjlf3 years ago
6 0
Hi there!

Simplify th' expression :-

(2x² + 3x - 10) - (x² - x + 111)

⇒ 2x² + 3x - 10 - x² + x - 111

⇒ 2x² - x² + 3x + x - 10 - 111

⇒x² + 4x - 121

Hence,
Option A. x² + 4x - 121 is Correct

~ Hope it helps!
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The 6% state income tax on a 42'000 salery​
Romashka [77]

Answer:

well, simply, it would be $2520.

in reality, an income tax does not work that simply. income taxes are figured using brackets, where (just making up numbers) the first $15000 might be taxed at 2%, earnings between $15,001 to $30,000 are taxed at 4%, and so on.

Thus, without knowing the tax tables to know the different rates and brackets, it's impossible to give an answer.

But in straight math terms, 6% of $42,000 is $2520

42000×.06= 2520

7 0
3 years ago
HELP<br><br> HOW AM I MEANT TO ANSWER THIS QUESTION I WOULD ASO LIKE ANSWER.<br><br> THX
galina1969 [7]
  • To find the number in a square, we have to multiply two circles which are connected to it.
  • So, to find a number in a circle, we have divide the number in the square by the number in the circle connected to it.
  • Therefore, -6 ÷ -3 = 2
  • 12 ÷ 2 = 6
  • 6 × -3 = -18

Please find the attached photograph for their positions.

Hope you could get an idea from here

Doubt clarification - use comment section.

4 0
2 years ago
I have four dogs whose average weight is 63 pounds. I also have three cats. The average weight of all seven of my animals is 41
Brums [2.3K]

Answer: 11.67 pounds

Step-by-step explanation:

From the question, the person have four dogs whose average weight is 63 pounds. Then, the total weight of the dogs will be:

= 63 pounds × 4

= 252 pounds

There are also three cats and the average weight of all seven of my animals is 41 pounds. This means that the total animals have a title weight of:

= 41 pounds × 7

= 287 pounds.

To get the weight of the cats, we subtract the total dog's weight from that of the whole animals. This will be:

= 287 - 252

= 35 pounds.

Since there are 3 cats, their average weight will be:

= 35/3

= 11.67 pounds

The average weight of the cats is 11.67 pounds.

8 0
3 years ago
Can someone explain or help me with these problems <br> Please and thank you
Ghella [55]

Answer:

1st picture (tri) = 16y+8

2nd picture (tri) = 12x-9

3rd picture (sq) = 21x+35

Step-by-step explanation:

Triangle area = (Base x Height) divided by 2

#1.)  16(2y+1) = 32y + 16            (32y+16)/2 = 16y+8

If you need more explination ask me :)

7 0
3 years ago
What is the decimal expansion of -11/15
Orlov [11]

Answer:

−0.73333333333333

Step-by-step explanation:

This is the decimal form of -11/15

4 0
3 years ago
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