All Questions ⁺⁰237417 Questions

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Calculate the best ISO for drone night scenes

If a drone has Max ISO 44000, 12-Bit DNG, how will its night 6K photos be?

rainyxyb Apr 24, 2025

Apr 23, 2025

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+1216

Counting

How many squares in the plane have at least two points in the lattice below as vertices?

AnswerscorrectIy Apr 23, 2025

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+1216

Counting

At a meeting, two scientists, two mathematicians, two historians, and two artists are to be seated around a circular table. In how many ways can they be seated so that all four pairs of people from the same discipline are seated together?

AnswerscorrectIy Apr 23, 2025

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+56

Help me plz

What is the equation of the reflection of the line y = 2x + 1 across the line y = 5x - 3? Give your answer in slope-intercept form.

PikaPika989 Apr 23, 2025

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Help need help

In \triangle ABC, we have AB = AC = 4 and \angle BAC = 45^\circ. If M is the midpoint of BC, then find AM^2.

PikaPika989 Apr 23, 2025

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Help geometry

Three unit squares and two line segments connecting two pairs of vertices are shown. What is the area of triangle ABC?
A is at (0,0), B is at (1,0), and C is at (1,1).

PikaPika989 Apr 23, 2025

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Super Hard Algebra 2/Precalculus Question Help Please

In the complex plane, z, z2 , z3 form, in some order, three of the vertices of a non-degenerate square. Enter all possible areas of the square, separated by commas.

PikaPika999 Apr 23, 2025

Apr 22, 2025

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Any help appreciated - preferably in simple language for a non mathematician

Without knowing the relationship between h and x, how is this possible?

dadtryingtoHelp Apr 22, 2025

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+56

Counting

Let S be a set of distinct integers. What is the smallest number of elements that S must contain, to ensure that S has a nonempty subset, where the sum of the elements in the subset is divisible by 2?

PikaPika989 Apr 22, 2025

Apr 21, 2025

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+56

Counting

Vera has 20 white socks, 21 black socks, 22 brown socks, 23 blue socks, 24 red socks, and 25 green socks. How many socks (at a minimum) must she pull out of her sock drawer to ensure at least six matching pairs of different colors?

PikaPika989 Apr 21, 2025

Apr 20, 2025

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+977

Counting

Recall that a partition of a positive integer n means a way of writing n as the sum of some positive integers, where the order of the parts does not matter. For example, there are five partitions of 4:
4
3 + 1
2 + 2 read more ..

magenta Apr 20, 2025

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+977

Counting

Find the number of ways filling in a 4 \times 4 grid, such that
* Each cell contains a 0 or a 1.
* The sum of the numbers in each row and each column is at least 2.

An example is shown below.
0110 read more ..

magenta Apr 20, 2025

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+977

Counting

Consider the set
S = {1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15, 16, 17, 18, 23, 24, ..., 12345678},
which consists of all positive integers whose digits strictly increase from left to right, and the digits are from 1 to 8. This set is read more ..

magenta Apr 20, 2025

Apr 19, 2025

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+458

Counting

Find the number of subsets of
S = \{1, 3, 8, 17, 30, 36, 47, 58\},
so that the sum of the elements in the subset is less than 20. (Note that for the empty subset, we take the sum of the elements as 0.)

bIueb3rry Apr 19, 2025

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