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Zolol [24]
3 years ago
8

Let a be a non-zero rational number and b be an irrational number. Is a x b rational or irrational?

Mathematics
1 answer:
pentagon [3]3 years ago
8 0

Answer:

rational

Step-by-step explanation:

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The number of board feet in a 16 foot long tree is approximated by the model F(d) = 0.77d^2 -- 1.32d -- 9.31 where F is the numb
Lubov Fominskaja [6]

we are given

F(d)=0.77d^2-1.32d-9.31

where

F is the number of board feet

d is the diameter (in inches) of the log

Since, we have to minimize F

so, firstly we will find it's derivative

F'(d)=0.77\times 2d-1.32\times 1-0

F'(d)=1.54d-1.32

now, we can set it to 0

and then we can solve for d

F'(d)=1.54d-1.32=0

1.54d-1.32=0

so, we get diameter as

d=\frac{6}{7}inch..............Answer

6 0
3 years ago
Please help please please please please
Bess [88]
One dice has 6 sides and two dice will give us 12 sides with 36 possibilities
it will be 9/36=.25

so it will have 25% chance of the two dice to have a sum of 9


5 0
3 years ago
If it is true that z2 - 6 = 19, then z2 + 6 = ?
qwelly [4]
The answer is probably the opposite which in this case would be -19 ?
5 0
3 years ago
A single die is rolled. How many ways can you roll a number that is prime, followed by a 6?
Grace [21]

Answer:

3 ways

Step-by-step explanation:

Since 6 will remain constant throughout the testing, we just need to find all prime numbers 1-6.

1 - is not prime nor composite

2 - is prime

3 - is prime

4 - 2x2=4, so composite

5 - is prime

6 - 2x3=6, so composite

Therefore, 2, 3, and 5 are prime numbers, and there are 3 of them.

5 0
2 years ago
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X=266/7
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