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pishuonlain [190]
3 years ago
11

What is the value of the expression below when b = 4 and c=5?

Mathematics
1 answer:
Ratling [72]3 years ago
3 0

Answer:

C. 107

Hope this helps! :)

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soldi70 [24.7K]
Number 8 would be B. Number 9 would be A. Hope this helps! Mark brainliest? :))
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The following statement is either true​ (in all​ cases) or false​ (for at least one​ example). If​ false, construct a specific e
matrenka [14]

Answer:

False, counterexample below

Step-by-step explanation:

Denote the unit vectors of R^3 by e_1=(1,0,0), e_2=(0,1,0), e_3=(0,0,1). Now consider v_1=e_1, v_2=2e_1 and v_3=e_3. We have that v_1, v_2,v_3 \in \mathbb{R}^3. Also, the vector v_3 is not a linear combination of v_1, v_2 because any linear combination of these two vectors will have third coordinate zero, but v_3 has third coordinate 1 so they can't be equal.

However, the set \{v_1, v_2,v_3\} is not linearly independent, because 2v_1-v_2+0v_3=0 is a non-trivial linear combination of these vectors that equals zero.

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3 years ago
Approximately 32,400 citizens of the country died in 2015. Express the toll in deaths per day
Zigmanuir [339]

There is 90 deaths per day.

First it tells us 32,400 people died in 2015, which also mean that many people died that year.

We have to find the number of people died each month first.

32,400÷12 because 12 is the total number of months in a year.

2700 people died in a month, not we need to find how many people died each day so we divided it by 30 and we get

90 deaths per day.

8 0
3 years ago
How do I completely factor 4x^2-64?
Salsk061 [2.6K]
4x^2 - 64

= 4(x + 4) (x - 4)


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How to do this type of questions
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The pattern is +5 +5 -1 +6 So the answer should be (B) 30,29,35
3 0
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