MATHEMATICS HIGH SCHOOL

Eighty-four is what percent of 212? 3.962% 39.62% 2.52% 25.2%

Answers

Answer 1

Answer:

Answer:

Option B, 39.62%

Step-by-step explanation:

We have to find 84 is what percent of 212.

For this we will put 84 in the numerator and 212 in the denominator to find the fraction first.

Then we will multiply this fraction by 100 to get the percentage.

Fraction of 84 to 212 = $(84)/(212)$

= $(21)/(53)$

Now the percentage will be $(21)/(53)* 100$

= 39.62%

Option B, 39.62% is the correct answer.

Answer 2

Answer:

The value of percentage 84 is of 212 is 39.62%, the correct option is B.

We are given that;

Percentage= 84%

Number= 212

Now,

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

To find the percentage, we need to divide 84 by 212 and then multiply by 100.

By solving

84 / 212 = 0.3962

0.3962 x 100 = 39.62

Therefore, by percentage the answer will be 39.62%.

Learn more about percent here:

brainly.com/question/11549320

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Solve the equation 36x^2 25=0

N ∈ lNWe set A= n(n²+11)
Show that A is divisible by 3
( n is natural number )
please try to help me in this i need it tomorrow plz...

Answers

@Konrad509's answer was fantastic.

What you first need to know is this. 3 consecutive natural numbers multiplied by each other, for instance: (1*2*3) or (2*3*4) or (3*4*5) or (4*5*(2*3)) can be described using the abstract expression:

(n-1)n(n+1)

-------------

Now:

A=n(n²+11),

and:

n(n²+11)

=n(n²-1+12)

=n³-n+12n

=n(n²-1)+12n

=n(n+1)(n-1)+12n

=(n-1)n(n+1)+(4*3)n

-------------------------

So:

A=(n-1)n(n+1)+(4*3)n

Therefore, A is divisible by 3.

$n(n^2+11)=\nn(n^2-1+12)=\nn(n^2-1)+12n=\n(n-1)n(n+1)+12n$

$(n-1)n(n+1)$ is the product of 3 consecutive natural numbers, so it has be to divisible by 3.

$12n$ is also divisible by 3 because 12 is divisible by 3.

If both elements of the sum are divisible by 3 so the sum itself is divisible by 3 as well.

Find the mean,median, mode, and range of data set. 65, 46, 78, 3, 87, 12, 99, 38, 71, 38

Answers

mean: 459
mode: 38
range: 96
median: 46

Mean= 53.7
Median=55.5
Mode=38
Range=99-3=96

Q1.Solve the following equation . (1) 4x + 10 = 30

Answers

Answer:

x = 5

Step-by-step explanation:

given the equation

4x + 10 = 30 ( subtract 10 from both sides )

4x + 10 - 10 = 30 - 10 ( simplify both sides )

4x = 20 ( divide both sides by 4 )

$(4)/(4)$ x = $(20)/(4)$ , that is

x = 5

640, 160, 40, 10, ...Which correctly describe the graph of the geometric sequence? Check all that apply.

The graph will show exponential growth.

The graph will appear linear.

The domain will be the set of natural numbers.

The range will be the set of natural numbers.

The graph will show exponential decay.

Answers

Answer:

Option 3 and 5 are correct

Step-by-step explanation:

We have given a geometric series 640,160,40,10....

Common ratio of geometric series is $r=(a_2)/(a_1)$

$r=(160)/(640)=(1)/(4)<0$

Here our common ratio is less than zero

It will show the graph of exponential decay

Hence, option 5 is correct.

The general term of geometric series is $a_n=a\cdotr^(n-1)$

Domain will be all natural numbers since, geometric series take only natural numbers.

Here, values of "n" is domain

Hence, option 3 is correct.

Range can be any positive real numbers not only natural number

Range is the value of $a_n$

Hence, option 4 is discarded.

Graph can not be linear of a geometric series being exponential

Hence, option 2 is discarded.

Option 1 is discarded because it is exponential decay function so it can not be exponential growth.

Therefore, Option 3 and 5 are correct.

Answer:

The options that hold true are:

The domain will be the set of natural numbers.

The graph will show exponential decay.

Step-by-step explanation:

We are given a geometric sequence as:

640, 160, 40, 10, ...

Clearly we see that each term is decreasing at a constant rate as compared to it's preceding term.

Hence, the graph formed by this sequence will be a exponential graph with decay .

( since, the terms of the sequence are decreasing)

The sequence could be modeled as:

Let $a_n$ represents the nth term of the sequence.

Hence,

$a_n=640\cdot (1)/(4^(n-1))$

As, the sequence is geometric hence the domain will be a set of natural numbers.

but the range will be positive real numbers.

Hence, the correct option is:

The domain will be the set of natural numbers.

The graph will show exponential decay

Plz help will mark as brainliest

Answers

i am pretty sure it is B because x is the slope in a graph and 1 can be 1/1 and parrarel means opposite so opposite of x axis is y.
opposite of 1/1 on x axis is opposite of 1/1 on y

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-
2) (-4 α²b6)³ =
3)-4m³h5.5n².m4=
4) (-3m²² h ²)4