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Westkost [7]
2 years ago
5

6. Multiply: (x – 4)(x + 5)​

Mathematics
2 answers:
Elena-2011 [213]2 years ago
6 0

Answer:

x^2+x-20

Step-by-step explanation:

(x-4)(x+5)

=x^2-4x+5x-20

=x^2+x-20

Hope This Helped

Anvisha [2.4K]2 years ago
3 0

Answer:

x^2+x-20

Step-by-step explanation:

1) Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.\\

x^2+5x-4x-20

2) Collect like terms.

x^2+(5x-4x)-20

3) Simplify.

x^2+x-20

<em>What is the FOIL method</em>

It stands for:

First, Outside, Inside, Last

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M
xxTIMURxx [149]

Answer:

A

Step-by-step explanation:

To answer this, look at one specific point for example, A. It is at the point (3,6). In order for this point to get to where it was moved to, you must rotate it counterclockwise () 90 degrees. Do this by changing the initial point from (x,y) to (-y,x). This is located at (-6,3). Then you can see that it was translated 2 units up from there.

I hope this helped.

3 0
2 years ago
What multiplies to -48 and adds to 13
Morgarella [4.7K]

Answer:

The formula to solve this would be:

X x Y = 13

There are at least two combinations of two numbers that you can multiply together to get 13.

Step-by-step explanation:

4 0
2 years ago
A flowerpot has a diameter of 15 centimeters. Which expression can be used to find its circumference, C, in centimeters?
Elena-2011 [213]
The answer is C because the formula is 2 x pai x radius
4 0
3 years ago
8. If a runner’s power is 400 W as she runs, how much chemical energy does she convert into other forms in 10.0 minutes? E = P X
spin [16.1K]

Answer:

2400kJ

Step-by-step explanation:

Step one:

given data

power P= 400W

time = 10minutes

to seconds= 60*10 = 600 seconds

Required

the energy

Step two:

we know that Energy= power * time

E=P*t

E=400*600

E=240000

E=2400kJ

She converts 2400kJ into other forms

5 0
3 years ago
G(x) = x3 - 4 <br> h(x) = x2 + 2<br> Find h(-2) - g(-1)
Lady bird [3.3K]

Answer:

11

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = x³ - 4

h(x) = x² + 2

h(-2) is x = -2

g(-1) is x = -1

<u>Step 2: Find h(-2) - g(-1)</u>

  1. Substitute:                    ((-2)² + 2) - ((-1)³ - 4)
  2. Exponents:                   (4 + 2) - (-1 - 4)
  3. Add/Subtract:               6 - (-5)
  4. Subtract:                       11
3 0
3 years ago
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