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lisov135 [29]
3 years ago
10

What are proportional ratios to 3/4

Mathematics
1 answer:
Verdich [7]3 years ago
4 0

Answer:

30/40, 75/100, 9/12, 15/20, 24/32

Step-by-step explanation:

all you have to do is multiply the numerator and the denominator by the same number. for example, 3*5 = 15 and 4*5 = 20 so you get 15/20.

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Test the convergence of the series sigma_n = 1^infinity n^n/n!
riadik2000 [5.3K]

With a_n=\frac{n^n}{n!}, we have

\dfrac{a_{n+1}}{a_n}=\dfrac{\frac{(n+1)^{n+1}}{(n+1)!}}{\frac{n^n}{n!}}=\dfrac{(n+1)n!}{(n+1)!}\left(\dfrac{n+1}n\right)^n=\left(1+\dfrac1n\right)^n

whose limit is (famously) e as n\to\infty. e>1, so the series diverges by the ratio test.

7 0
3 years ago
Much of what we know about left and right hemisphere specializations comes from the study of people who had split-brain surgery.
yarga [219]

Answer:

b. severs the corpus callosum between hemispheres.

Step-by-step explanation:

The split-brain surgery is used to alleviate epileptic seizures. It involves the severing of the corpus callosum, that is the bond between both hemispheres of the brain.

So the correct answer is:

b. severs the corpus callosum between hemispheres.

4 0
3 years ago
A gallon of paint can cover 400 square feet. To the nearest half gallon, find how much paint will be needed to paint two coats o
morpeh [17]
You'll need to calculate the surface area to be painted.  The room has two ends, 2 sides and 1 ceiling.  The area of the ceiling is 18*20.  The area of the two ends of the room is 2(8*18).  The area of the two long walls is 2(8*20)

Add these areas together:  18*20 + 2*8*18 + 2*8*20, or 968.

That's 968 square feet.  Since each can contains enough paint for 400 square feet of coverage, divide 968 by 400:

968
----- = 2.42.  This means having to purchase 2.5              (gallons)
400              This answer is accurate to the nearest 0.5.
6 0
4 years ago
What are the vertices of AA'B'C'if AABC is dilated by a scale factor of 3?
AfilCa [17]

Answer:

Step-by-step explanation:

8 0
3 years ago
B. Simplify: (x + a)2 + (x - a)2​
tankabanditka [31]

Answer:

2x^2 + 2a^2

Step-by-step explanation:

(x + a)^2 + (x - a)^2

Lets expand it.

=> x^2 + a^2 + 2ax + x^2 + a^2 - 2ax

=> x^2 + x^2 + a^2 + a^2

=> 2x^2 + 2a^2

5 0
3 years ago
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