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oksian1 [2.3K]
3 years ago
11

Which of the following represents "four times the square of a number is thirty-six"?

Mathematics
2 answers:
lara31 [8.8K]3 years ago
7 0

Answer:

Answer B )  4 x² =  36 .

Step-by-step explanation:

Given  : four times the square of a number is thirty-six".

To find : Which of the following represents the statement.

Solution : We have given  four times the square of a number is thirty-six".

Let the number  = x

According to question :

Square of the number = x².

4 times square of the number is 36  

4 x² =  36 .

Therefore, Answer B )  4 x² =  36 .

dusya [7]3 years ago
6 0
I would have to say b but not sure correct
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Let X1, X2 and X3 be three independent random variables that are uniformly distributed between 50 and 100.
sergejj [24]

Answer:

a) the probability that the minimum of the three is between 75 and 90 is 0.00072

b) the probability that the second smallest of the three is between 75 and 90 is 0.396

Step-by-step explanation:

Given that;

fx(x) = { 1/5 ; 50 < x < 100

              0, otherwise}

Fx(x) = { x-50 / 50 ; 50 < x < 100

                          1 ;   x > 100

a)

n = 3

F(1) (x) = nf(x) ( 1-F(x)^n-1

= 3 × 1/50 ( 1 - ((x-50)/50)²

= 3/50 (( 100 - x)/50)²

=3/50³ ( 100 - x)²

Therefore P ( 75 < (x) < 90) =  ⁹⁰∫₇₅ 3/50³ ( 100 - x)² dx

= 3/50³ [ -2 (100 - x ]₇₅⁹⁰

= (3 ( -20 + 50)) / 50₃

= 9 / 12500 = 0.00072

b)

f(k) (x) = nf(x)  ( ⁿ⁻¹_k₋ ₁) ( F(x) )^k-1 ; ( 1 - F(x) )^n-k

Now for n = 3, k = 2

f(2) (x) = 3f(x) × 2 × (x-50 / 50) ( 1 - (x-50 / 50))

= 6 × 1/50 × ( x-50 / 50) ( 100-x / 50)

= 6/50³ ( 150x - x² - 5000 )

therefore

P( 75 < x2 < 90 ) = 6/50³ ⁹⁰∫₇₅ ( 150x - x² - 5000 ) dx

= 99 / 250 = 0.396

3 0
2 years ago
A certain city with population of 132,000 is to be divided into 11 voting districts, and no district is to have a population tha
galben [10]

Answer: Therefore, Option 'D' is correct.

Step-by-step explanation:

Since we have given that

Number of population = 132000

Number of voting districts = 11

According to question,  no district is to have a population that is more than 10 percent greater than the population of any other district.

Let the number of population that the least populated district could have be 'x'.

So, it becomes,

x+10(1.1x)=132000\\\\x+11x=13200\\\\12x=132000\\\\x=\dfrac{132000}{12}\\\\x=11000

Hence, there are 11000 population that the least populated district could have.

Therefore, Option 'D' is correct.

4 0
3 years ago
carly bought a new house for $125,000. the value of the house appreciates approximately 3.5% each year. what will be the value o
larisa [96]
We have to determine the value of a house after 10 years. We know that the present value of the house is $125,000 and that the value increases 3.5% each year. Formula is: FV = PV * ( 1 + r )^t, where FV is the future value, PV is the present value, r = 3.5% = 0.035 and t = 10 years. FV = 125,000 *( 1.035 )^10 = 125,000 * 1.4105; FV = $176,324.85 ( $ 176,325 to the nearest dollar ). Answer: The value of the house after 10 years will be <span>$176,325.</span>
8 0
3 years ago
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What is 2 ½ divided by ½ equal too
miv72 [106K]

Answer:

it woulb be 1.25

4 0
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Order -3,5, 16, and -10 from least to greatest.
Furkat [3]
Least to greatest: -10, -3, 5, 16
Closet to farthest from 0: -3, 5, -10, 16
6 0
2 years ago
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