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3 years ago

HELPPP PLSSSS ITS ALMOST DUE IN 1 HOUR WILL GIVE BRAINLIEST THANKS AND 5 STARSSS

Mathematics

1 answer:

miv72 [106K]3 years ago

8 0

Answer:

1/30

Step-by-step explanation:

We multiply all the terms by the denominator

-6×5x+1=0

Wy multiply elements

-30x+1=0

We move all terms containing x to the left, all other terms to the right

-30x=-1

x=-1/-30

x=1/30

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Probability.

swat32

Answer: 0.0386

Step-by-step explanation:

Given: The probability hat the frozen chickens contain enough salmonella bacteria to cause illness if improperly cooked : p= 0.30

Sample size : n = 12

Let x = Number of contaminated chickens

Here , two outcomes for any chicken (either contaminated or not) , so it follows binomial distribution.

Binomial probability formula:

$P(X=x) = \ ^nC_x p^x(1-p)^{n-x}$

The probability that the consumer will have more than 6 contaminated chickens :-

$P(X>6)=P(X=7)+P(X=8)+P(X=9)+P(X=10)+P(X=11)+P(X=12)\\\\=^{12}C_6(0.3)^6(0.7)^6+^{12}C_7(0.3)^7(0.7)^5+^{12}C_8(0.3)^8(0.7)^4+^{12}C_9(0.3)^9(0.7)^3+^{12}C_{10}(0.3)^{10}(0.7)^2+^{12}C_{11}(0.3)^{11}(0.7)^1+^{12}C_0(0.3)^{12}(0.7)^0$

$=0.03860084306\approx0.0386$ <em> (simplified)</em>

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Hence, the required probability = 0.0386

5 0

3 years ago

Find the number b, where b>0, such that the average value of f(x)=3−27x2 on the interval [0,b] is equal to 2.

Ymorist [56]

F(×)=3-27×2
4-1=3×3=9-27
18×2=36
ob

8 0

4 years ago

Help hell help help gelp help

IgorC [24]

Just read what it says not that hard go to the left twice and go up 4 units.

Hope you have a good day

3 0

3 years ago

A parking garage has 6 levels . Each level has 15 rows. Each row has the same number of parking spaces . There are 2,250 parking

Vika [28.1K]

6*15=90 rows in total.
2250/90=25 spaces in a row

6 0

3 years ago

HELP! NEED DONE IN 24 MIN.

Gala2k [10]

Answer:

37.8

Step-by-step explanation:

Set up a proportion using the values given in the diagram of similar triangles.

31.5/15 = x/18

Cross-multiply.

31.5(18) = 15x

Multiply.

567 = 15x

Divide both sides by 15.

37.8 = x

6 0

3 years ago