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3 years ago

A. f(-2)= b. f(x)=2,x=

Mathematics

1 answer:

Vilka [71]3 years ago

7 0

The generic form of a function is "f(x) = some function of x."

The "f(x) =" part is the same as saying "y =." When you're given something like f(x) = 2, that means y = 2, and you have to find the x value where y = 2. Remember that the y-axis runs vertically (up and down) and the x-axis runs horizontally (left to right). Looking at the graph, when y=2, x = -1.

When an x value is plugged into the function, the "x" in "f(x)" changes into the x value. So, f(-2) is asking for the y-value of the graph at x=-2. Using the graph, you can see that when x = -2, y = 3.

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Your answers are:
A. f(-2)= 3
b. f(x)=2, x= -1

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What is 5+5 well it is...

olga55 [171]

Answer:

...It is 10

Step-by-step explanation:

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3 years ago

Read 2 more answers

1 A lawnmower that regularly sells for $200 is on sale for $85. Find the % of change that the price was decreased by ??? percent

Airida [17]

Answer:

The price changed by 92.5 %

Step-by-step explanation:

The regular price of lawn mover = 200 dollars

The new selling price = 85 dollars

Change in selling price = 200 -85 dollars = 115 dollars

% change == $\frac{185}{200} * 100 = 92.5$

The price changed by 92.5 %

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3 years ago

Which is represented by Ø? OUP Ο ΕΟΡ O QUE o eno

GuDViN [60]

Corrected Question

The Venn diagram shows three types of numbers: odd (O), even (E), and prime (P). Which is represented by Ø?

(A) O ⋃ P (B)E ∩ P (C)O ⋃ E (D)E ∩ O

Answer:

(D) E ∩ O

Step-by-step explanation:

The Venn diagram is reproduced and attached below.

In the Venn diagram, the sets of Odd(O) and Even(E) numbers are disjoint, i.e. there is no intersection.

We can also say the intersection of sets O and E is the empty set.

Therefore: E ∩ O is represented by the empty set Ø.

Generally speaking, a number cannot be even and odd at the same time.

The correct option is D

7 0

3 years ago

Factor completely.

Virty [35]

Answer:(5x+3)(4x2+1)

Step-by-step explanation:

20x3-12x2+5x-3

Final result :

(4x2 + 1) • (5x - 3)

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "x2" was replaced by "x^2". 1 more similar replacement(s).

Step by step solution :

Step 1 :

Equation at the end of step 1 :

(((20 • (x3)) - (22•3x2)) + 5x) - 3

Step 2 :

Equation at the end of step 2 :

(((22•5x3) - (22•3x2)) + 5x) - 3

Step 3 :

Checking for a perfect cube :

3.1 20x3-12x2+5x-3 is not a perfect cube

Trying to factor by pulling out :

3.2 Factoring: 20x3-12x2+5x-3

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: 5x-3

Group 2: 20x3-12x2

Pull out from each group separately :

Group 1: (5x-3) • (1)

Group 2: (5x-3) • (4x2)

-------------------

Add up the two groups :

(5x-3) • (4x2+1)

Which is the desired factorization

Polynomial Roots Calculator :

3.3 Find roots (zeroes) of : F(x) = 4x2+1

Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient

In this case, the Leading Coefficient is 4 and the Trailing Constant is 1.

The factor(s) are:

of the Leading Coefficient : 1,2 ,4

of the Trailing Constant : 1

Let us test ....

P Q P/Q F(P/Q) Divisor

-1 1 -1.00 5.00

-1 2 -0.50 2.00

-1 4 -0.25 1.25

1 1 1.00 5.00

1 2 0.50 2.00

1 4 0.25 1.25

Polynomial Roots Calculator found no rational roots

Final result :

(4x2 + 1) • (5x - 3)

4 0

3 years ago

Find the product of 3x40=3x

nata0808 [166]

3x40=3x
120=3x
x= $\frac{120}{3}$
x=40

6 0

4 years ago