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FinnZ [79.3K]
3 years ago
9

Which rows represent when (p ∧ q) ∨ (p ∧ r) is true?\

Mathematics
1 answer:
tatyana61 [14]3 years ago
8 0
<span>the statement is ambiguous, it must be written as (p ∧ q) ∨ r 
or p ∧ (q ∨ r).</span>
You might be interested in
Somebody please help me.................​
Oksi-84 [34.3K]

Answer:

D. 1 x 8

Step-by-step explanation:

7/8 rounds up to 1

8 1/10 rounds down to 8

so you're left with the numbers 1 and 8

this means your answer is D

3 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
Hiya can someone please help me on my maths ratio work?!?
almond37 [142]
Answer : comedy = 48 dvd, action = 64 dvd, horror = 40 dvd

Explanation:
Find comedy dvd:
152 x 6/(6 + 8 + 5) = 152 x 6/19 = 48
Find action:
152 x 8/19 = 64
Find horror
152 - (64 + 48) = 152 - 112 = 40
5 0
4 years ago
Someone pls help me
VLD [36.1K]

Answer:

75 men spent 7 hours or more exercising.

Step-by-step explanation:

If you multiply 300 by 0.67, you get 201. That would be the amount of men.  Multiply 300 by 0.37 to get 111, the amount of people who spent less than 7 hours exercising, and subtract it from the 201 men to get 90. Then, multiply 300 by 0.75 to get 225, the amount of women that spent 7 hours or more exercising, and subtract it from 300, which would result in an answer of 75. That's how many men spent 7 hours or more exercising.

7 0
4 years ago
A circle is centered at (−4, −6) and has a radius of 3. Which of the following is the equation for this circle?
frosja888 [35]
If that is a square to the parenthesis then it would be D. the formula is (x-h)^2+(y-k)^2=r^2 
4 0
3 years ago
Read 2 more answers
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