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Tom [10]
3 years ago
15

Help needed asap idk anything

Mathematics
2 answers:
Licemer1 [7]3 years ago
8 0

Answer:

49x +196x.... or 245x

Step-by-step explanation:

levacccp [35]3 years ago
7 0

Answer:

To simplify 21^4

Answer - 194,481

Step-by-step explanation:

21 x 21 = 441

441 x 441 = 194,481

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Find the value of x.<br>asnswers <br>50/3<br>7<br>5<br>6​
vovikov84 [41]

Answer:

x = 6

Step-by-step explanation:

PR / RQ  = P'R' / R'Q'

x / 9 = 10 / 15

cross-multiply:

15x = 90

x = 90/15

x = 6

6 0
3 years ago
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
3 years ago
The cook at the diner has 72 eggs.her recipe says each omelet needs 3 eggs .Does the cook have enough eggs to make 24 order
Anna007 [38]

Answer:

Yes she has just enough

Step-by-step explanation:

3 eggs per each order of omelet

24 orders so 3x24=72

5 0
3 years ago
^^^^^^^^^^^^^*^^^^^^^^^
irina [24]

the answer is c...........

7 0
3 years ago
"The quotient of a number and -6,<br> increased by 8, is -11."
Tema [17]

Answer:

x=114

Step-by-step explanation:

-11=x/-6+8

-19=x/-6

x=114

3 0
3 years ago
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