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3 years ago

Which group of organism has the shortest record of life on earth

Mathematics

1 answer:

Kaylis [27]3 years ago

7 0

That would be.... placoderm fish

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Ashley has 100 books that she wants to give away at the rate of n books per week. Write a recursive function that represents the

enyata [817]

Answer:

f(x) = f(x-1) - n <--- this is the recursive formula

f(0) = 100

f(1) = f(0) - n = 100 - n

f(2) = f(1) - n = 100 - n - n = 100 - 2n

f(3) = f(2) - n = 100 - 2n - n = 100 - 3n

in general the EXPLICIT formula is f(x) = 100 - xn , x=0,1,2,3

Step-by-step explanation:

hope this helps if it is wrong let me know have a blessed day

3 0

2 years ago

Using the graph as your guide, complete the following statement.

Law Incorporation [45]

Answer:

Option C. positive

Step-by-step explanation:

we know that

If the discriminant of a quadratic function is positive, then the quadratic function has two real solutions

If the discriminant of a quadratic function is zero, then the quadratic function has one real solution

If the discriminant of a quadratic function is negative, then the quadratic function has two complex solutions

In this problem

The quadratic function has two real solutions (x-intercepts)

therefore

The discriminant is positive

3 0

2 years ago

Complete this statement 40xa^2+24ax+32a=8a( )

harina [27]

40xa^2 + 24 ax + 32 a =

all you have to do is factor out a 8a from each term
aka reverse distribution property

8a (5 a + 3x + 4)

8 0

2 years ago

If f(x)=3x-15, then f^-1(x) = solve for x please

amid [387]

1. Replace f(x) with y: y = 3x - 15
2. Interchange x and y: x = 3y - 15
3. Solve this for y: 3y = x + 15, and y = (x + 15)/3
4. Replace y with

-1 -1
f (x): f (x) = (x + 15) / 3 (answer)

5 0

2 years ago

If u={1,2,3,4,5},A={2,4} and Beta {2,5,5}find n(AUB)

slavikrds [6]

u={1,2,3,4,5},A={2,4} and Beta {2,5,5}

now, (AUB)={1,3,3,4,5}

[AUB is the set of all elements of set A and set B without any repetition ]

n(AUB)=5

n(AUB)is the total no of elements in set (AUB)

7 0

3 years ago