What is the product of (3+radical 5) and (3-radical 5)

Answers

Answer 1

Answer: (3 + $√(5)$ ) × (3 - $√(5)$ )
Take the special case
(a - b)×(a + b)=a² - b²

a = 3
b = $√(5)$

3² - ( $√(5)$ )² {(√)² = the number itself}
9 - 5
4

Answer 2

Answer: (3 + √((5)) + (3 - √(5))
3(3 - √(5)) + √(5)(3 - √(5)))
3(3) - 3(√(5)) + √(5)(3) + √(5)(√(5))
9 - 3√(5) + 3√(5) - √(25)
9 - 5
4

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Answers

Answer:

Point B of 4the quertant

Juan mowed the same number of lawns each week as Mark. Which equation represents Juan’s rate of mowing lawns, where x represents the number of weeks and y represents the total number of lawns mowed?

Answers

Answer:

y=20x is correct

Step-by-step explanation:

i took the quiz

Answer:

y = 20x

i got the question right on the quiz

What is the slope of 6x-3y=18??

Answers

$the \ slope \ intercept \ form \ is : \n \n y= mx +b \n \n6x-3y=18 \n \n-3y=-6x+18 \ \ /:(-3)\n \ny=(-6)/(-3)x + (18)/(-3) \n \ny=2x-6 \n \n m = 2$

Jenny is eight years older than twice her cousin Sue’s age. The sum of their ages is less than 32. What is the greatest age that Sue could be? 7 8 9 10

Answers

Sue age = x

jenny age = 2x+8

then, x+2x+8 = 32

3x=24

x=8

So, answer is option B.

the correct answer is b

The volume of a cube depends on the length of its sides. This can be written in function nation as v(s). What is the best interpretation of v(3)=27

Answers

Alright, lets get started.

We have given that volume of cube depends on the lenght of side.

In cube we know that each side is of similar size.

Suppose the side lenght of cube is a, the volume of that cube will be a^3.

We have given in question notation of volume V(s).

V(3) = 27

Which shows the lenght of side of cube is 3 and the volume of cube is 27, which satisfies the formula also.

3 ^3 = 27 the volume given

So, the best interpretation of V(3) = 27 is the lenght of the cube side is 3 and the volume of the cube is 27. : Answer

Hope it will help :)

Ramya paid for 5 packages of printer paper. Each package cost $9.86. How much did Ramya spend on the packages?

A.
$45.00

B.
$49.30

C.
$9.86

D.
$2.00

Answers

I got B as my answer

the anser is bbbbbbbbbbbbbbbbbbb

Other Questions

How to solve this one

HELP ME WITH MATH PLZ !!!!

Find the sum of (5x3 + 3x2 - 5x + 4) and (8x3 -5x2 + 8x + 9).

Can someone help or explain the problem to me