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3 years ago

PLEASE HELP PLEASE!!!

Mathematics

1 answer:

defon3 years ago

6 0

Answer:

We conclude that at x = 0 and x = -1, the value of f(x) = 2ˣ - 1 and g(x) = 1/2x is the same.

Therefore, the solution to f(x) = g(x) is:

x = -1

x - 0

Step-by-step explanation:

Given the table

x f(x) = 2ˣ - 1 g(x) = 1/2x

-2 -3/4 -1

-1 -1/2 -1/2

0 0 0

1 1 1/2

2 3 1

If we carefully observe, we can determine that

at x = 0, the value of f(x) = 2ˣ - 1 and g(x) = 1/2x is the same.

In other words,

at x = 0

f(0) = 0

g(0) = 0

Thus,

at x = 0

f(x) = g(x)

Also at x = -1, the value of f(x) = 2ˣ - 1 and g(x) = 1/2x is the same.

In other words,

at x = -1

f(-1) = -1/2

g(-1) = -1/2

Thus,

at x = -1

f(x) = g(x)

Summary:

Thus, we conclude that at x = 0 and x = -1, the value of f(x) = 2ˣ - 1 and g(x) = 1/2x is the same.

Therefore, the solution to f(x) = g(x) is:

x = -1

x - 0

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nikitadnepr [17]

Answer:

The expected number of times is 4.

Step-by-step explanation:

Looking at the question, we see that this follows a geometric distribution because it is asking for the expected number of trials hat will bring about the FIRST SUCCESS. The probability of success is

$\frac{1}{4}$

Since it is a geometric distribution, we know that the expected value of a random variable X, E(X) that follows a geometric distribution is given as:

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Therefore, the expected number of times will be

E(X) = 1/(1/p) = 1/(1/4) = 4.

Hence, the expected number of times is 4.

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3 years ago

Which expression is equivalent to 14x − 7 + 3(2x − 5)?

skelet666 [1.2K]

Answer:

This equation is equivalent to $20x-22$

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Hope this helps and have a great day!

5 0

3 years ago

X2 + 45x = -200 using the quadratic formula

Ivan

Answer:

x=−5 or x=−40

Step-by-step explanation:

Step 1: Subtract -200 from both sides.

Step 2: Factor left side of equation.

Step 3: Set factors equal to 0.

HOPE IT HELPS:)

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4 years ago

What is 100 times 2 help meeeee

Bas_tet [7]

100 multiplied by two equal 200.

5 0

4 years ago

Read 2 more answers

Find the distance between the two points (-5, -2) and T(-3, 4).

Ulleksa [173]

Answer:

$\displaystyle d = 2\sqrt{10}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS 

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point (-5, -2) → x₁ = -5, y₁ = -2

Point (-3, 4) → x₂ = -3, y₂ = 4

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]: $\displaystyle d = \sqrt{(-3+5)^2+(4+2)^2}$
[√Radical] (Parenthesis) Add: $\displaystyle d = \sqrt{(2)^2+(6)^2}$
[√Radical] Evaluate exponents: $\displaystyle d = \sqrt{4+36}$
[√Radical] Add: $\displaystyle d = \sqrt{40}$
[√Radical] Simplify: $\displaystyle d = 2\sqrt{10}$

4 0

3 years ago