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Nimfa-mama [501]
2 years ago
13

True or False? If x∈ W, then x∈ Z

Mathematics
1 answer:
zepelin [54]2 years ago
6 0

Answer:

False

Step-by-step explanation:

If W and Z are vector spaces, then no, that is not necessarily true. That's not generally true for any circumstance unless the vector space W is a subspace of Z, or vice versa.

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Could you explain why the answer 125 was supposed to be negative while my answer 81 was correct?
hichkok12 [17]

Answer:

Step-by-step explanation:

Realize what (-5)^3 means

(-5)(-5)(-5)

25(-5)

-125

meanwhile

(-9)^2 is

(-9)(-9)

81

Basically a negative times a negative is always positive, but when a negative number is cubed (or raised to any odd exponent for that matter) the product will be negative.

5 0
3 years ago
last year 80 students signed up for s summer trip to washington, D.C. This summer 50 students have signed up to go. What is the
andrew-mc [135]

Answer:

U can refer this.... but im not sure... hope it's help ya!

3 0
3 years ago
|2i+3j| is equal to:
IgorLugansk [536]

babe what are you doing on brainly?

8 0
3 years ago
Read 2 more answers
A board 6 ft 11 in long is cut from a board 10 ft 5 in long. Find the length of the remaining
gulaghasi [49]

Answer:

3' 6" left

Step-by-step explanation:

6' 11" = 83"

10' 5" = 125"

125 - 83 = 42"

42" = 3' 6"

4 0
2 years ago
A furniture company manufactures desks and chairs. Each desk uses four units of wood, and each chair uses three units of wood. A
Troyanec [42]

Step-by-step explanation:

Although I cannot find any model or solver, we can proceed to model the optimization problem from the information given.

the problem is to maximize profit.

let desk be x

and chairs be y

400x+250y=P (maximize)

4x+3y<2000   (constraints)

according to restrictions y=2x

let us substitute y=2x in the constraints we have

4x+3(2x)<2000

4x+6x<2000

10x<2000

x<200

so with restriction, if the desk is 200 then chairs should be at least 2 times the desk

y=2x

y=200*2

y=400

we now have to substitute x=200 and y=400 in the expression for profit maximization we have

400x+250y=P (maximize)

80000+100000=P

180000=P

P=$180,000

the profit is $180,000

5 0
3 years ago
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