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3 years ago

QUICK I NEED HELP!!

Mathematics

2 answers:

Lemur [1.5K]3 years ago

4 0

*+:｡.｡ I put the answer in the comments, for people who’ve run out of answers! ｡.｡:+*

melomori [17]3 years ago

3 0

Finding volume by multiplying
Finding volume with unit cubes
you take base one and mulitiply it by the number its beside. then multiply by the height

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Suppose you roll a die. Find the probability of the given event. Simplify your answer.

Elodia [21]

Answer:

Step-by-step explanation:

Events: 1,2,3,4,5,6

Odd number are numbers not divisible by 2

Odd number < 5 are 1 & 3

P(odd numbers <5)= 2/6

= 1/3

7 0

3 years ago

16. From past experience, a company has found that in cartons of transistors, 92% contain no defective transistors, 3% contain o

Lynna [10]

Answer:

E(x)=0.15

V(x)=0.3075

S(x)=0.5545

Step-by-step explanation:

The mean of a discrete variable is calculated as:

$E(x)=x_1*p(x_1)+x_2*p(x_2)+...+x_n*p(n)$

where $x_1,x_2,...,x_n$ are the values that the variable can take and $p(x_1),p(x_2),...,p(x_n)$ are their respective probabilities.

So, if we call x the number of defective transistors in cartons, we can calculate the mean E(x) as:

$E(x)=(0*0.92)+(1*0.03)+(2*0.03)+(3*0.02)=0.15$

Because there are 0 defective transistor with a probability of 0.92, 1 defective transistor with a probability of 0.03, 2 defective transistors with a probability of 0.03 and 3 defective transistors with a probability of 0.01.

At the same way, the variance V(x) is calculated as:

$V(x)=E(x^2)-(E(x))^2$

Where $E(x^2)=x_1^2*p(x_1)+x_2^2*p(x_2)+...+x_n^2*p(n)$

So, the variance V(x) is equal to:

$E(x^2)=(0^2*0.92)+(1^2*0.03)+(2^2*0.03)+(3^2*0.02)=0.33\\V(x)=0.33-(0.15)^2\\V(x)=0.3075$

Finally, the standard deviation is calculated as:

$S(x)=\sqrt{V(x)} \\S(x)=\sqrt{0.3075} \\S(x)=0.5545$

8 0

3 years ago

Read 2 more answers

Sum of money is placed at simple interest for 3 years at 10% per annum and then the amount is invested for 2 years at the same r

JulsSmile [24]

Answer:

sum was 300000

Step-by-step explanation:

let sum of money is placed is x rs

Term T = 3 years, rate R = 10%

Then simple interest for for 3 years is

$SI= \frac{PTR}{100}\\ SI=\frac{x\times 3\times 10}{100} \\SI = 0.3x$

Sum of x will become x+0.3x = 1.3x after 3 years. now this 1.3x is kept for compound interest for two years. ie

$A =P[1+R]^t\\471900=1.3x[1+\frac{10}{100} ]^2\\x=\frac{471900}{1.573} \\x=300000$

Sum was 300000

3 0

4 years ago

Help me order the side from shortest to longest

svet-max [94.6K]

Answer:

Step-by-step explanation:

AB BC AC

(I’m not sure, If Im wrong let me knoww ❤️❤️)

3 0

3 years ago

Read 2 more answers

Can you please help me with this. whoever helps me with this I'll make brilliantist

kondaur [170]

Answer:

1. 12/5, 12 to 5, 12:5

2. ?

3.?

4. GCF = 2 LCM = 10

5. ?

6. rate = 42/6 unit rate= $7 per book

7. ?

8. 12/48 = 25/100

9. 36 days

10. y = x * 2, y = x -3

11. 3 · (4^2 - 5) · 2, (3^3 + 3) · 4 ÷ 3

12. Solve = 4 I dont know how to model it

5 0

3 years ago