All categories

3 years ago

Simplify the radical expression (3 + √6) (3 - √6)

Mathematics

2 answers:

notka56 [123]3 years ago

8 0

Answer:

Step-by-step explanation:

use FOIL method. ;)

Dmitry_Shevchenko [17]3 years ago

6 0

Answer:

Step-by-step explanation:

(3 + √6) (3 - √6) = 9-3√6+3√6-6 = 9-6 = 3

(pls mark brainliest fam)

You might be interested in

A small rural town has experienced growth at a rate of 50 people per year since 2000. If the population of the town in 2000 was

Sholpan [36]

Population = 50x + 600

7 0

3 years ago

Olga says: If you subtract 8 from

alexandr402 [8]

Answer: 1.5

Step-by-step explanation: Reverse the equation to get the answer.

-13 divided by 2 is -6.5

add 8 and you'll get 1.5

7 0

3 years ago

Find the missing dimensions: Use the scale factor 1/4:3

katrin [286]

Answer:

The answer is 1/4!

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Supposed Blue spruce was included in the list and the mean decreased to 165 what is the height of the Blue spruce?

postnew [5]

The height of the blue spruce was 45.

We find the mean by adding all of the data points and dividing by the number of data points. We will add the unknown value x and change the number we're dividing by to 7:

(160+320+100+110+200+220+x)/7 = 165
(1110+x)/7 = 165

Multiply both sides by 7:
1110 + x = 1155

Subtract 1110 from both sides:
x = 45

7 0

3 years ago

Read 2 more answers

Find x<br> A. 22√2<br> B. 22<br> C. 11√3/3<br> D. 11√3

mel-nik [20]

Answer

$22\sqrt{2}$

Step-by-step explanation:

First we gave a name to the side that is common for both triangles, can be Y for example.

Using trigonometric functions we can make a relationship between the two angles that we have and the magnitud of the side.

$sin(45)=\frac{11}{Y} \\$ , Because sin(x)= op/hip

$cos(60)=\frac{Y}{x}$ , Because con(x)=ad/hip

Having this equations, we can solve the system and find x

$Y=\frac{11}{sin(45)} \\Y=cos(60)*x$

we equal Y and solve

$\frac{11}{sin(45)}=cos(60)*x\\ x=\frac{11}{sin(45)*cos(60)} \\x=\frac{11}{\frac{\sqrt{2} }{2} *\frac{1}{2} } \\x=\frac{11}{\frac{\sqrt{2} }{4} } \\x=\frac{44}{\sqrt{2} }\\$

Then we rationalize

$x=22\sqrt{2}$

Hope you like it!

7 0

3 years ago

Read 2 more answers