Answer:
Only four numbers can be formed
Step-by-step explanation:
We are to make numbers greater than 10 and less than 25
Distinct digits should be there
As such all numbers lying between 10 and 25 are
11,12,.....24
Of these the conditions are only 2, 0, 1 , 8 should be used.
First digit cannot be 0 or 8 because we want two digit numbers between 10 and 25
So first digit can be either 1 or 2
If first digit is 1, second digit can be either 2 or 8 i.e. only 12, 18
If first digit is 2, second digit can be 0 or 1 cannot be 8 i.e. only 20 , 21
Only 4 numbers can be formed
Answer:
Choice D is correct
Step-by-step explanation:
The first step is to write the polar equation of the conic section in standard form by dividing both the numerator and the denominator by 2;
The eccentricity of this conic section is thus 1, the coefficient of cos θ. Thus, this conic section is a parabola since its eccentricity is 1.
The value of the directrix is determined as;
d = k/e = 3/1 = 3
The denominator of the polar equation of this conic section contains (-cos θ) which implies that this parabola opens towards the right and thus the equation of its directrix is;
x = -3
Thus, the polar equation represents a parabola that opens towards the right with a directrix located at x = -3. Choice D fits this criteria
Answer: 280 for number 2
Step-by-step explanation: I think I ain’t not % sure
Square pyramid is the answer to your question
Answer:
Noah did not make any error
Step-by-step explanation:
The median of a list of strictly increasing numbers is simply the middle number. If there's an even number of numbers in the list, then the median is the average of the middle two terms.
Here, the numbers are 115, 109, 117, 136, 127, 131. When ordered from least to greatest, we get: 109, 115, 117, 127, 131, and 136, which is what Noah got.
Since there are 6 numbers (6 is even), the median will be the average of the middle two numbers, which are 117 and 127: (117 + 127)/2 = 244/2 = 122
So, Noah was correct.
