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vladimir2022 [97]
4 years ago
7

Consider U = {x|x is a negative real number}. Which is an empty set? {x|x ∈ U and x has a negative cube root} {x|x ∈ U and x has

a negative square root} {x|x ∈ U and x is equal to the product of a positive number and –1} {x|x ∈ U and x is equal to the sum of one negative and one positive number}
Mathematics
2 answers:
natima [27]4 years ago
7 0

Answer:

{x\ x e U and x has a negative square root} is an empty set.

Step-by-step explanation:

If x e U, x is a negative real number, and they don't have a square root (they don't have even roots). Their square roots are complex numbers, not real ones.

salantis [7]4 years ago
4 0

Answer:

B

Step-by-step explanation:

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In an investment account what if $2000 is invested. What is the value after 3 years if compounded monthly by 6% ?
OleMash [197]
<span>
Compound interest formula  A = P(1 +r/100)^n
A = Amount
r = rate = 6
n = number of compounding time.
P = Principal = $2000.
Since we are compounding monthly, r = 6% p.a = (6/12)% per month.
n= 3 years = 3*12 = 36 months.
Note that  since we are compounding monthly, our time would be in months.
A = P(1 +r/100)^n
A = 2000 * (1 + (6/12)/100 )^36
A = 2000 * (1 +  6/1200)^36
</span><span>A = 2000 * (1 +  0.005)^36    Use your calculator</span>
<span> <span>A = 2000 * (1 .005)^36</span> = 2393.36
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That's it. Cheers.

3 0
4 years ago
What percentage is shaded in the rectangle provided in the photo below?
Viefleur [7K]

Answer:

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Step-by-step explanation:

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6 0
4 years ago
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How do you do number 19
Karo-lina-s [1.5K]
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Terri brought 1.74 meters of rope. Gracie brought 1.64 meters of rope. Who brought more rope
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Step-by-step explanation:

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Anastasy [175]
Well, sum means addition, so I'm gonna add together 52 and 20.

52
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I start at the ones, and see that 2 + 0 is 2, so drop a 2 below them

52
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5 0
4 years ago
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