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2 years ago

Write the relationship between the values of the given digits like 5s in 2,755

Mathematics

2 answers:

ladessa [460]2 years ago

7 0

Answer:

Value of second 5 is 10 times the value of first 5.

Step-by-step explanation:

Given : Number 2,755.

To find : Write the relationship between the values of the given digits like 5s .

Solution : We have given 2,755.

Here we can there are two 5's.

First 5 from the right us at ones place = 5

Second 5 from the right is at tens place = 50.

So, 50 = 10 * 5

Value of second 5 is 10 times the value of first 5.

Therefore, Value of second 5 is 10 times the value of first 5.

stealth61 [152]2 years ago

4 0

The first 5 is in the 10s place. The second is in the ones. To write this out, it would be 5 tens (50), plus 5 ones (5); 55. I don't know if this is what you were looking for, but I hope I could help in some way!

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Suppose that 20% of adults belong to health clubs, and 51% of these health club members go to the club at least twice a week. Wh

Westkost [7]

Answer:

10.2% of adults will belong to health clubs and will go to the club at least twice a week

Step-by-step explanation:

assuming that the event H=an adult belongs to a health club and the event T= he/she goes at least twice a week , then if both are independent of each other:

P(T∩H)= P(H)*P(T) ( probability of the union of independent events → multiplication rule )

replacing values

P(T∩H)= P(H)*P(T) = 0.20 * 0.51 =0.102

then 10.2% of adults will belong to health clubs and will go to the club at least twice a week

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3 years ago

Prove that an = 4^n + 2(-1)^nis the solution to

olga nikolaevna [1]

Answer:

See proof below

Step-by-step explanation:

We have to verify that if we substitute $a_n=4^n+2(-1)^n$ in the equation $a_n=3a_{n-1}+4a_{n-2}$ the equality is true.

Let's substitute first in the right hand side:

$3a_{n-1}+4a_{n-2}=3(4^{n-1}+2(-1)^{n-1})+4(4^{n-2}+2(-1)^{n-2})$

Now we use the distributive laws. Also, note that $(-1)^{n-1}=\frac{1}{-1}(-1)^n=(-1)(-1)^{n}$ (this also works when the power is n-2).

$=3(4^{n-1})+6(-1)^{n-1}+4(4^{n-2})+8(-1)^{n-2}$

$=3(4^{n-1})+(-1)(6)(-1)^{n}+4^{n-1}+(-1)^2(8)(-1)^{n}$

$=4(4^{n-1})-6(-1)^{n}+8(-1)^{n}=4^n+2(-1)^n=a_n$

then the sequence solves the recurrence relation.

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3 years ago

The standard form of the equation of a parabola is y = 7x2 + 14x + 4. What is the vertex form of the equation?

Drupady [299]

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2 years ago

10 POINTS Math unit 5.11! PLEASE HELP

agasfer [191]

To write the function to show the weekly growth rate of population , we first find the weekly growth rate by dividing yearly growth rate by 52 ( as there are 52 weeks in an year)

Given function is ,

$P=120(1.016)^t$

$P=120(1+0.016)^t$

To convert in weekly growth rate , divide 0.016 by 52

So formula for weekly growth rate of population is

$P=120(1+ \frac{0.016}{52})^{52t}$

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3 years ago

Triangle ABC is similar to triangle XYZ. fine side a

aleksley [76]

<h3>Answer: a = 15</h3>

Explanation:

The jump from 13 to 39 is "times 3" when comparing the diagonal segments. So the jump from 5 to 'a' must also be "times 3" to keep the sides in the same proportion. Therefore, a = 3*5 = 15.

Or we could solve it like so

13/39 = 5/a

13a = 39*5 ... cross multiplying

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a = 195/13 .... dividing both sides by 13

a = 15

4 0

2 years ago