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jeyben [28]
3 years ago
5

Find the difference

Mathematics
1 answer:
Makovka662 [10]3 years ago
7 0

Answer:

-5n^2 +2n +5

Step-by-step explanation:

( -4n^2 +2n) - (n^2 -5)

Distribute the minus sign

( -4n^2 +2n) - n^2 +5

Combine like terms

-5n^2 +2n +5

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Please help me with this thanks
geniusboy [140]
<span> When area is equal 1120. We can write an equation
(x+4)(-x+64)=1120
-x²-4x+64x+256=1120
-x²+60x+256-1120=0
-x²+60x-864=0
D=b² - 4ac= 3600-4*864=144, √D=12
x= (-b+/-√D)/2a
x=(-60+/-12)/(-2)
x=24, x=36
For x=24
(x+4)=24+4=28
(-x+64)=(-24+64)=40
For x=36
(x+4)=36+4=40
(x-64) =(-36+64)=28
So sides should be 28 and 40 in.
We did not get any extraneous solutions. They could be if we get negative length side, for example. They can come because a quadratic equation can
give positive and negative numbers because a^2  and (-a)^2 give the same positive number.
We chose to solve this equation using formula for quadratic equations, because this equation has too big numbers to solve it using other methods.



</span>
5 0
3 years ago
The independent variable is the same as the x values and the _____
maw [93]

<em>Let X and Y two nonempty sets. ... The variable x is called the independent variable (also sometimes called the argument of the function), and the variable y is called dependent variable (also sometimes called the image of the function.)</em>

<em>please</em><em> mark</em><em> me</em><em> brainliest</em>

8 0
2 years ago
Use a table to multiply (x – 1)(3x + 2)
Naily [24]

Hello,

The answer is <u>3x² - x - 2</u>

<h3>Step-by-step explanation:-</h3>

<u>Step 1</u> : Apply distributive property by multiplying each term of " x - 1 " by each term of 3x + 2 :-

→ 3x² + 2x - 3x - 2

<u>Step 2</u> : Combine 2x and -3x to get -x :-

→ <u>3x² - x - 2</u>

✍️ <em>B</em><em>y</em><em> </em><em>Benjemin</em> ☺️

7 0
2 years ago
Batching s father is 26 years younger than Batching s grand father and 29 years older than Baching.The sum of the ages of all th
Shalnov [3]

x + (x + 29) + (x + 26 + 29) = 135
3x + 84 = 135
3x = 51
x = 17

Baching is 17 his father is 46 and grandfather is 72
7 0
3 years ago
Read 2 more answers
Which of the following are geometric series?
Fed [463]
<h3>ANSWER</h3>

first is the geometric series

<h3 /><h3>EXPLANATION</h3>

a geometric series is a sequence of numbers whose first term is non zero and each of the succeeding terms is equal to the Prcedding term multiply by a constant number.

if a = first term

and constant number = d

then

GP is given by

a,a r , a r^2 ,a r^3 .............and so on

in first

a = 1/2

and d = 1/2

and hence it is an GP

8 0
3 years ago
Read 2 more answers
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