All categories

2 years ago

PLEASE GELP WITH ALGEBRA Given the function below find f(-2). f(x) = x^2 – 3x + 5

Mathematics

2 answers:

Alborosie2 years ago

7 0

Answer:

Step-by-step explanation:

Tpy6a [65]2 years ago

7 0

Answer:

B) $15$

Step-by-step explanation:

$f(x)=x^2-3x+5$

$f(-2)=(-2)^2-3(-2)+5$

$f(-2)=4-(-6)+5$

$f(-2)=4+6+5$

$f(-2)=10+5$

$f(-2)=15$

You might be interested in

Triangle S and Triangle L are scaled copies of one

tatiyna

Answer:

Step-by-step explanation:

The bottom of S is 2 units and the bottom of L is 4 Units.

4:2 is the ratio, and that is equal to 2

3 0

2 years ago

If a small boy, in 30 days, saved $1.00 to spend in your store, how much did he save each day?

ivolga24 [154]

Answer:

3 cents for 29 days and 4 cents for 1 day

Step-by-step explanation:

1.00 dollar / 30 days = .03 cents

3 cents x 30 = .99 cents

3 cents for 29 days and 4 cents for 1 day

6 0

3 years ago

Read 2 more answers

A caircular fountian has a circumference of 21 feet. Which expression can be used to find the diameter of the fountian in feet?

KiRa [710]

Answer: $21 = 2\pi r$

Step-by-step explanation:

To find the circumference of a circle, you can use $2\pi r$ . You can set this equal to 21 (feet). The equation to solve at this point would be $21=2\pi r$ .

5 0

2 years ago

What is the slope of the line that passes through the points (9, 5) and (21, 1)?

AleksandrR [38]

Answer:

$\displaystyle m = \frac{-1}{3}$

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)
Slope Formula: $\displaystyle m = \frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (9, 5)

Point (21, 1)

Step 2: Solve for slope m

Substitute in points [Slope Formula]: $\displaystyle m = \frac{1-5}{21-9}$
[Fraction] Subtract: $\displaystyle m = \frac{-4}{12}$
[Fraction] Simplify: $\displaystyle m = \frac{-1}{3}$

5 0

3 years ago

Solve the equation x over 3-5=y for x

notka56 [123]

Answer:

For x, the equation is $x=3(y+5)$

Step-by-step explanation:

Given: the equation x over 3-5=y

We have to solve for x,

Consider the given equation the equation x over 3-5=y

Here, over means divide, so,

Mathematically written as ,

$\frac{x}{3}-5=y$

Solving foor x,

adding 5 both sides, we have,

$\frac{x}{3}-5+5=y+5$

On solving, we have,

$\frac{x}{3}=y+5$

Now, multiply both side by 3, we have,

$3(\frac{x}{3})=3(y+5)$

On simplification, we have,

$x=3(y+5)$

Thus, for x, the equation is $x=3(y+5)$

4 0

3 years ago