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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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3 years ago
Find the area of the shaded region please.
Ira Lisetskai [31]
The first shaded triangle is 144 cm. 
7 0
3 years ago
Here is another Guy's... This one is hard..12 Points? First one to answer with a great explanation gets brainlest (:!
schepotkina [342]

Answer:

25/16

Step-by-step explanation:

(4/5)^−2

=

(4/5)^−2

=

(5/4)^2

=

(5/4)*(5/4)


=


5*5/4*4


=


5^2/4^2

=


25/16


(Decimal: 1.5625)

7 0
2 years ago
What is 1.16 as afraction
saul85 [17]

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23.2/20

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the volume of a right circular cone that has a height of 3.9 ft and a base with a circumference of 16.3 ft. Round your answ
MissTica

Answer:

The answer to your question is Volume = 27.5 ft³

Step-by-step explanation:

Data

Volume = ?

height = 3.9 ft

Circumference = 16.3 ft

Process

1.- Calculate the radius of the Cone

   Circumference = 2πr = 16.3 ft

-Solve for r

                                    r = 16.3/2π

                                    r = 16.3/6.28

                                    r = 2.5955 ft

2.- Calculate the volume

Volume = 1/3πr²h

-Substitution

Volume = 1/3(3.14)(2.5955)²(3.9)

-Simplification

Volume = 1/3(82.4966)

-Result

Volume = 27.5 ft³

8 0
3 years ago
Read 2 more answers
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