Answer:
29
Step-by-step explanation:
Each number has 4 in difference
2x^2 + 3xy - 4y^2 when x = 2 and y = -4
= 2(2)^2 + 3(2)(-4) - 4(-4)^2 = 2(4) + (-24) - 4(16) = 8 - 24 - 64 = -80
Answer:
the answer b
Step-by-step explanation:
[surface area]=[area of 4 triangles sides]+[area of square base]
[area of square base]=24*24--------> 576 cm²
[area of one triangles side]
l=slant height
l²=16²+12²-------> l²=400-----------> l=20 cm
[area of one triangles side]=24*20/2--------> 240 cm²
[area of 4 triangles sides]=4*240----------> 960 cm²
[surface area]=[960]+[576]--------> 1536 cm²
This math is known as permutations- the arrangement of a set of objects. A way that I use to solve these problems was by just multiplying the numbers, so the singer's can be selected in 28 ways.
Answer:
Geometric sequence.
Step-by-step explanation:
Simply defined, a complex sequence is a set of numbers in a sequence, whose numbers include imaginary numbers. In essensce, not all numbers in a complex sequence are real numbers.
A geometric sequence is a sequence in which each number must be multiplied by a number (referred to as the common ratio) to attain the next value in the sequence.
An arithmetic sequence is a sequence of numbers in which one has to add a value to the previous number to attain the next number.
A simple sequence can be defined as a pattern of numbers, such as a list of multiples.
In the given sequecne:
3, 9, 27, 81, 243
One can see that each element is three times the last. Diving any two consecutive elements (elements next to each other) will result in the numerical value of (3). Therefore this is a geometric sequence since it fits all of the criteria of a geometric sequence and even has a common ratio of (3).
