Find the Reciprocal of the number. 5/8

Mathematics

1 answer:

Vesna [10]3 years ago

6 0

Answer:

8/5

Step-by-step explanation:

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The fourth term of an arithmetic

yulyashka [42]

Answer:

Step-by-step explanation:

Given AP where:

a₄ = 2a₂ - 1
a₆ = 7

To find

a₁ = ?

Since

a₄ = a₁ + 3d
a₂ = a₁ + d
a₆ = a₁ + 5d

Initial equations will change as:

a₁ + 3d = 2(a₁ + d) - 1 ⇒ a₁ + 3d = 2a₁ + 2d - 1 ⇒ a₁ = d + 1
a₁ + 5d = 7 ⇒ a₁ = 7 - 5d

Comparing the above:

d + 1 = 7 - 5d
6d = 6
d = 1

Then:

a₁ = d + 1 = 1 + 1 = 2
a₁ = 2

The first term is 2

5 0

4 years ago

What is the domain and range for the following function and its inverse f(x) = x2 – 2

Andreas93 [3]

When a function is graphed, the domain refers to the points along the x-axis that is covered by the graph. On the other hand, the range refers to the points along the y-axis that is covered by the graph. The inverse of the function can be determined when you substitute the negative value of x. The function and its inverse have the identical graphs.This is because of the term x^2. Whether x is negative or positive, it will yield the same positive the answer. The graph is shown in the picture.

The domain is from -∞ to +∞, while the range is from -2 to +∞.