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alekssr [168]
3 years ago
5

Please show your work simplify the expression (-5-c)(-1)

Mathematics
2 answers:
frozen [14]3 years ago
4 0
(-5-c)(-1)
can write as (-1)(-5-c)
multiply(-1) to (-5) then multiply (-1) to(-5)
answer 5+c
daser333 [38]3 years ago
4 0

How to Get Answer:

\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a\\=-\left(-5-c\right)\cdot \:1\\\mathrm{Multiply:}\:\left(-5-c\right)\cdot \:1=\left(-5-c\right)\\=-\left(-c-5\right)\\Distribute\:parentheses\\=-\left(-5\right)-\left(-c\right)\\Apply\:minus-plus\:rules\\\left(-a\right)=a\\Answer: =5+c

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Is the following expression true or false? Show your work.
Paul [167]

Answer: True

Solution:

Rearrange the equation to the LHS:

[x^2 + 8x + 16] · [x^2 – 8x + 16] - (x^2 – 16)^2 = 0

Factoring  x^2+8x+16

x^2 - 4x - 4x - 16

= (x-4)  •  (x-4)

= = (x+4)2

So now we have an equation

(x + 4)^2 • (x - 4)^2 -  (x^2 - 16)^2  = 0

Step 2: Evaluate the following:

(x+4)2   =    x^2+8x+16

(x-4)2   =    x^2-8x+16  

(x^2-16)2   =    x^4-32x^2+256

(x^2+8x+16)  (x^2-8x+16  ) -  (x^4-32x^2+256 )

0 = 0

Hence True

3 0
3 years ago
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marta [7]
All are correct because negative numbers are always smaller than 0 and bigger negative numbers always are less then smaller negative numbers such as -9 is smaller than -5
4 0
3 years ago
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vampirchik [111]

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\

Step-by-step explanation:

5 0
2 years ago
nancy started the year with $425 in the bank and is saving $25 a week. Seamus started the year with $875 and is spending $15 a w
Goryan [66]

They will have same amount in 45 weeks.

Step-by-step explanation:

Given,

Starting amount of Nancy = $425

Per week saving = $25

Let,

x represent the number of weeks.

N(x) = 25x+425

Starting amount of Seamus = $875

Per week saving = $15

S(x) = 15x+875

For same amount;

N(x) = S(x)

25x+425=15x=875\\25x-15x=875-425\\10x=450

Dividing both sides by 10

\frac{10x}{10}=\frac{450}{10}\\x=45

They will have same amount in 45 weeks.

Keywords: function, division

Learn more about functions at:

  • brainly.com/question/9738996
  • brainly.com/question/9729310

#LearnwithBrainly

3 0
3 years ago
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drek231 [11]

Answer:

5.946 cm

Step-by-step explanation:

Using the Pythagorean Theorem, we know that in a right angle triangle to find the longest side we must use the equation a^2 = b^2 + c^2

A is the longest side while b and c are the other two sides

To find one side we must use

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square root 35.36 to get a

a = 5.946427499

a (3 d.p.) = 5.946

4 0
2 years ago
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