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2 years ago

Random people help meh im d.umb

Mathematics

2 answers:

lianna [129]2 years ago

6 0

answer:

i believe the answer is c)$40,000

step-by-step explanation:

since 64,000 is the whole amount 40,000 is the only sensible answer

good luck :)

i hope this helps

have a nice day!

krok68 [10]2 years ago

5 0

I believe it is c 40,000

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PLEASEEE HELPPPPPPP 15 POINTS

anygoal [31]

The equivalent to (1/3)^3 is

(1/3) x (1/3) x (1/3) = .<span>037
</span>
The answer is 1/27 or 0.37.

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3 years ago

If M is the set of all perfect squares that are less than 100 and N is the set of all positive numbers that are less than 15. wr

deff fn [24]

The sets of M and N are { 4 , 16 , 25 , 36 , 49 , 64 , 81 } and{ 0, 1 , 2 , 3, 4, 5 , 6, 7 , 8, 9, 10, 11, 12, 13, 14, 15 }

Set is a collection of elements or numbers or objects.

It is represented with the symbol '{}'

We have that;

M is the set of all perfect squares that are less than 100
N is the set of all positive numbers that are less than 15

M = { 4 , 16 , 25 , 36 , 49 , 64 , 81 }

N = { 0, 1 , 2 , 3, 4, 5 , 6, 7 , 8, 9, 10, 11, 12, 13, 14, 15 }

Thus, the sets of M and N are { 4 , 16 , 25 , 36 , 49 , 64 , 81 } and{ 0, 1 , 2 , 3, 4, 5 , 6, 7 , 8, 9, 10, 11, 12, 13, 14, 15 }

Learn more about sets here:

brainly.com/question/2166579

#SPJ1

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1 year ago

How can you tell the difference between a reflection across the y=x line, and a 180 degree rotation?

hammer [34]

Here are reflection and rotation rules for coordinates. If you look at y=x and the one for 180 degrees you'll see the difference. It's hard to remember it but just study it and you'll be fine. :)

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3 years ago

Aneesha travels at a rate of 50 miles per hour. Morris is traveling 3 feet per second less than Amish. Which is the best estimat

Tamiku [17]

You'll have to convert 50 mph to feet per second:

50 mph 5280 ft 1 hr
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1 1 mi 3600 sec

Find the value of this. Then subtract 3 ft/sec to obtain the answer.

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3 years ago

The discriminant of a quadratic equation is negative. One solution is 3+4i. What is the other solution?

julsineya [31]

It bears repeating: you should have applied the well-known following formulas: "Hello", "Please" and "Thanks".
Anyway...

= = = = = = = = = = = = = = = = = =
The way you stated the problem, there is an infinity of possibilities for the other solution.

► For instance, the quadratic equation:
   x² – (6 + 4i)x + (9 + 12i) = 0
has for discriminant:
   Δ = (6 + 4i)² – 4(9 + 12i) = 36 – 16 + 48i – 36 – 48i = -16
which is indeed negative.
Its solutions will then be:
   x₁ = [(6 + 4i) + 4i]/2 = 3 + 4i
   x₂ = [(6 + 4i) – 4i]/2 = 3
And the other solution here is 3.

► If you are not convinced, the quadratic equation:
   x² – (6 + 5i)x + (5 + 15i) = 0
has for discriminant:
   Δ = (6 + 5i)² – 4(5 + 15i) = 36 – 25 + 60i – 20 – 60i = -9
which is indeed negative.
Its solutions will then be:
   x₁ = [(6 + 5i) + 3i]/2 = 3 + 4i
   x₂ = [(6 + 5i) – 3i]/2 = 3 + i
And the other solution here is 3+i.

► In fact, every quadratic equation of the form:
   x² – [6 + (4 + α)i]x + (3 + 4i)(3 + αi) = 0
where α is any real, has for discriminant:
   Δ = [6 + (4 + α)i]² – 4(3 + 4i)(3 + αi)
      = 36 – (4 + α)² + 12(4 + α)i – 36 + 16α – 12(4 + α)i
      = 16α – (4 + α)²
      = 16α – 16 – 8α – α²
      = -16 + 8α – α²
      = -(α – 4)²
WILL be negative.
Their solutions will then be:
   x₁ = [ [6 + (4 + α)i] – (α – 4)i ]/2 = 3 + 4i
   x₂ = [ [6 + (4 + α)i] + (α – 4)i ]/2 = 3 + αi
And the other solution will then be is 3+αi.

Since α can take any real value, you'll obtain an infinity of solutions of the form 3+αi.

► So conclusively:
If the discriminant of a quadratic is negative AND one of the solutions is 3+4i, the only thing we can say about the other solution is that its real part must be 3.

Regards, to lizard squad >:0

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3 years ago