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Bumek [7]
3 years ago
13

11) Which of the following expressions are equivalent to:(-4 - 4) + 5

Mathematics
1 answer:
dsp733 years ago
6 0

Answer:

(-4-4)+5

-(4)+(-4)+5

Step-by-step explanation:

I only see those two, the question could have had a mistake

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The number of red marbles in a jar is 3
mash [69]

Answer:

Bx3=27 there are 9 blue marbles

Step-by-step explanation:

3 0
3 years ago
A coin contains 9 99 grams of nickel and 1 6 1616 grams of copper, for a total weight of 2 5 2525 grams. What percentage of the
klasskru [66]

Weight of copper in coin, divided by total weight of coin..

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4 years ago
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Given the polynomial 6x3 + 4x2 − 6x − 4, what is the value of the coefficient 'k' in the factored form? 6x3 + 4x2 − 6x − 4 = 2(x
anastassius [24]

6x^3+4x^2-6x-4 =\\ 2(3x^3+2x^2-3x-2) =\\ 2(x^2(3x+2)-1(3x+2))=\\ 2(x^2-1)(3x+2)=2(x+1)(x-1)(3x+2).

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5 0
3 years ago
Developing Proof: Fill in the reasons for this algebraic proof. Given: 5x + 1 = 21 Prove: x = 41) 5x + 1 = 21 Give the reasons f
jenyasd209 [6]

Answer:

21 = 21

Step-by-step explanation:

5x + 1 = 21

-1           -1

5x = 20

__    __

5        5

x = 4

5x + 1 = 21           First substitute x for 4

5(4) + 1 = 21        Then continue to solve the problem to get the proof

20 + 1 = 21          

21 = 21

6 0
3 years ago
Bh+hr=25 solve for r please work it out step by step
denis23 [38]

So firstly, factor out h on the left side: h(b+r)=25

Next, divide both sides by h: b+r=\frac{25}{h}

Lastly, subtract both sides by b and your answer will be r=\frac{25}{h}-b

7 0
3 years ago
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