What is (x-5) (x+5)?

Answers

Answer 1

Answer: $(x-5)(x+5)\nFOIL\ Method\n\nFirst \nx*x=x^2\n\nOutside\nx*5=5x\n\nInside\n-5*x=-5x\n\nLast\n-5*5=-25 \n\n Combine\ like\ terms.\n\n-5x+5x=0x\n\nCombine\ together\n\nx^2-25$

Hope this helped :)

Answer 2

Answer: $(x-5) (x+5)=x\cdot x+5\cdot x-5\cdot x-5\cdot5=x^2+5x-5x-25=\n \n=x^2-25$

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Hard equation that equals one as the solution

Answers

This is not an equation. It's just an expression that you have to evaluate,
but I think you'll have fun with it.

[ sin(270°) / cos(180°) ] x (Ψ cycles per second / Ψ Hertz) x [ log(10) ] = ?

$\int { \frac { dy }{ dx } } dx\cdot { y }^( -1 )\cdot \ln { e } \cdot { { \pi } }^( o )\cdot \sqrt [ 326475 ]{ 1 }$

what value of a makes the equation true? 9a+2=4a-18

Answers

$9a+2=4a-18 \n9a-4a= -18-2 \n 5a= -20 |:5 \na= -4$

$9a+2=4a-18\ \ \ \ /-2\n\n9a=4a-20\ \ \ \ /-4a\n\n5a=-20\ \ \ \ /:5\n\na=-4$

6. Jessie sorted the coins in her bank. Shemade 7 stacks of 6 dimes and 8 stacksof 5 nickels. She then found 1 dime and1 nickel. How many dimes and nickelsdoes Jessie have in all? (Lesson 2.12)

Answers

Lets write down the information that we know.

Jessie has 7 stacks of 6 dimes, so Jessie has a total of 6*7 dimes

Dimes=7*6=42dimes

Jessie has 42 dimes, but then she found another one so lets add one more dime.

42+1=43 dimes

Jessie has 8 stacks of 5 nickels, so Jessie has 8*5 nickels

Nickels=8*5=40nickels

Jessie has 40 nickels, but then she found another one so lets add 1 to the total number of nickels.

40+1=41nickels

Now we can answer the question.

How many dimes and nickels does jessie have in all?

nickels+dimes=
41+43=84 coins

Jessie has 84 coins in total

7 stacks of 6 dimes = 6•7 which is 42
8 stacks of 5 nickles = 8•5 which is 40
1 dime + 1 nickle
Add all of them together .......42+40+1+1=84

Hope this helped!❤️

Tony bought a flat-rate box from the post office to send a gift to his mother for Mother’s Day. The dimensions of the medium-size box are 14 inches × 12 inches × 3.5 inches. What is the volume of the largest gift he can send to his mother?

Answers

Answer:

maximum volume of box is 588 cubic inches

Step-by-step explanation:

given data

dimensions box = 14 inches × 12 inches × 3.5 inches

to find out

volume of box

solution

we consider here box dimensions are

length l = 14 inches

width w = 12 inches

and height h = 3.5 inches

apply volume formula that is = l × w × h .....................1

put here value we get

volume = l × w × h

volume = 14 × 12 × 3.5

volume = 588 in³

so maximum volume of box is 588 cubic inches

Answer:

588

Step-by-step explanation:

Explain how an expression becomes a equation?

Answers

An expression becomes an equation by adding an equal sign to the end of the expression and if there's a number on the other side of the equation. For example, 4+3 becomes an equation if you put 4+3=7. Or, 4+3=2+5. Good luck!

How do you model a decimal using a fraction

Answers

By eliminating decimal and implementing zeros in the denominator we transform the decimal value into a fraction value.

Given that,
To model a decimal using a fraction.

What is decimal value?

Decimal value is defined as showing the place value of the digits in a decimal number. If any proportion of the digit is lower than 1 it would be represented after the dot right to the absolute value,

Here,

Let's assume a decimal value, 0.25
Now in order to transform this decimal value in a fraction, we must eliminate the decimal point and add two zeros after one by implementing it into the denominator.
Since,

= 0.25 = 25 / 100 = 1 / 4

Thus, by eliminating decimals and implementing zeros in the denominator we transform the decimal values into fraction values.

Learn more about decimal values here,

brainly.com/question/19802955

#SPJ2

You model a decimal using a fraction :

multiply the denominator and numerator by 10 for every number after the decimal point after we change the decimal in fractions with the denominator 1

Further explanation

Fraction numbers are known as numerators and denominators

On a number line, fractions are expressed in points that lie between two integers

The general form of fractions is

$\large {\boxed {\bold {\frac {a} {b}}}$

a = numerator

b = denominator

Decimal numbers are numbers in which there are commas or decimal points.

The value of each number in decimal numbers is based on a comparison of the number 10

In a decimal system, the numbers have the following consecutive values (the place value of the digits in a number): hundred thousands, ten thousands, one thousands, hundreds, tens, ones, decimal points, tenths, hundredths, thousandths, ten thousandths, hundred thousandths

Between ones and tenth values separated by commas (decimal points)

Decimal numbers can also be expressed as proper or mixed fractions

The position of each digit in decimal numbers is important.

Because the decimal number is based on the number 10, As we move left, each position is 10 times bigger, and As we move right, each position is 10 times smaller

On the left of the decimal point is a whole number

To convert a Decimal to a Fraction there are several steps:

1. Write down the decimal in fractions with the denominator 1
2. We multiply the denominator and numerator by 10 for every number after the decimal point.
3. Simplify the fraction if needed

Example:

$\displaystyle 0.459$