1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
amm1812
3 years ago
11

Please help me with 21 and 22! Thank you.

Mathematics
1 answer:
Artyom0805 [142]3 years ago
7 0
#21

To find the area of rectangle, you multiple length by width, so that would be (\ \sqrt{2x}\ )(\ \sqrt{6x}\ ) = \sqrt{2x\cdot6x} = \sqrt{12x^2} = x\sqrt{4\cdot3} = \boxed{2x\sqrt3}

Since we are talking about area \ length, x need to be positive so we don't need to worry about absolute value now.

#22

The area of triangle is \dfrac12bh, so that would be
\dfrac12\sqrt{18y}\cdot\sqrt{2y^4}\\\ \\=\dfrac{y^2}2\sqrt{18y}\cdot\sqrt{2}\\\ \\=\dfrac{y^2}2\sqrt{18y\cdot2}\\\ \\=\dfrac{y^2}2\sqrt{36y}\\\ \\=\dfrac{y^2}2\sqrt{4\cdot9\cdot y}\\\ \\=\boxed{3y^2\sqrt y}\text{ or }\boxed{3\sqrt{y^5}}

Hope this helps.
You might be interested in
your customer count for last week was 5417. Due to a product promotion you expect a 2.4% increase this week over last week. how
Sauron [17]
The answer would be 5547
First you multiply 5417 and 2.4% to get 130.008
Then you add 130.008 and 5417 to get 5547.008
but you can round this to 5547
Hope this helped! :)
6 0
3 years ago
Does this graph represent a function? Why or why not?
Lunna [17]

Answer:

Step-by-step explanation:

B. Yes, because it passes the vertical line test, is the answer.

6 0
2 years ago
Please help, im two weeks behind on my math ):
bixtya [17]

Answer:

the surface of area is 14cm to 2cm to 6cm please rate my answer

3 0
2 years ago
7 times 29 using area models
drek231 [11]

Answer:

949

Step-by-step explanation:

8 0
2 years ago
If the rate 30 hot dogs per 5 minutes is reduced to a unit rate, the result is?
weqwewe [10]
It Is 35 because 5+30=35
8 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP! DUE TODAY​
    8·1 answer
  • Which line shows the first error in the solution?
    13·2 answers
  • 20% of 37.35 for math
    12·1 answer
  • Can sameone help me please
    15·2 answers
  • Which is the surface area of the cube?
    5·1 answer
  • You have a savings account that has an annual interest rate of 6%, interest is compounded monthly. The
    15·1 answer
  • What is the solution to the system of linear equations graphed below? On a coordinate plane, 2 lines intersect at (3.5, negative
    9·2 answers
  • HOW DO I DO THIS AND WHERE CAN I LEARN MORE
    12·1 answer
  • I really need help plz
    12·1 answer
  • Find the equation of the line with slope of 2 passing through (3,1)<br><br> please
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!