What is the next number?
2, 7, 26, 101, 400, ?

Answers

Answer 1

Answer: It is 1595. Put it on excel so you can better have an overview how it is done. You need 5 columns, column A-E. On column A, put 1 to 5 in rows 1 to 5. On column C, put the answers: 2, 7, 26, 101 and 400. On column D, put number 3 in all 5 rows. Back on column B, insert =sum(C1-A1) on row 1 and copy till row 5. On column E, insert =sum(B1+C1*D1) on row 1 and copy till row 5 and you will get 1595 at the end.

Answer 2

Answer: 7/2=3.5
26/7=3.7
101/26=3.9
400/101=4
400 x 4 or 4.1 = 1600 or 1640

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$4.30 makeup; 40% discount; 6% tax

Answers

4.30 × (0.40)= d (what the discount is, but not money owed) subtract that from original 4.30-d=b. then add 0.06 of 4.30 to b.

Russian ice breaker yamal can move forward 2.3 meters thick ice at a speed of 5.5 kilometers per hour how long will it take to travel 82.5 kiolometers

Answers

The train travel at 5.5 km per hour .We know that in X hours it will advance by X*5.5 = 82.5 , hence X = 82.5/5= 15It will take 5 hours .I hope I really help !

Whats the difference between abs extreme values and extreme values?

Answers

The difference between abs extreme values (absolute extreme values) and extreme values is:
The absolute extreme values, or extrema, refer to the maximum and minimum values of a function while an extreme value, or extremum (plural extrema), is the smallest (minimum) or largest (maximum) value of a function.

>A function f is said to have an absolute maximum on an interval I at x0 if f(x0 ) is the largest value of f on I; that is, f(x0 ) ≥ f(x) for all x in the domain of f that are in I.

$12.50 marked up by 140%

Answers

Answer: 17.5

Step-by-step explanation: 12.5*140%

2. Which of the following is true of functions and their inverses?A. The inverse of a quadratic function is not a function.
B. The inverse of a linear function is always a function.
C. The inverse of a quadratic function is always a function.
D. The inverse of a linear function is not a function.

Answers

Answer – A. (The inverse of a quadratic function is not a function)
Since a parabola (quadratic function) does not pass the horizontal line test, it is not possible for a quadratic equation to will have an inverse that is also a function.

Option B is wrong because the inverse of a linear function is not always a function because when the linear function has slope, the inverse cannot be a function.
Option C is wrong because the inverse of a quadratic function is never a function because a quadratic function does not pass the horizontal line test
Option D is wrong because the inverse of a linear function is a function, provided that the linear function has no slope.

The correct answer is:

A) The inverse of a quadratic function is not a function.

Explanation:

The inverse of a function is a function if and only if each element of the range (y-coordinates) is mapped to one element of the domain (x-coordinates).

Each y must be mapped to one x; this means no y can be repeated. This means if we draw a horizontal line through any part of the graph of an inverse function, it should not hit more than 1 point.

The graph of a quadratic function is a parabola, or a u-shaped graph. If we draw a horizontal line through a parabola, it will hit twice everywhere except the vertex. This means the inverse of a quadratic function is not itself a function.

A number that if multiplied by 6 and then increased by 48 will result to 600