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3 years ago

A rectangle has a length of √18 + √32, and a width of √27. Find the area and the perimeter of the rectangle.

Mathematics

1 answer:

Katena32 [7]3 years ago

3 0

Answer:

A=21√6

p=6√3 + 14√2

Step-by-step explanation:

Area =L*W

P=2(L+w)

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The sum of two numbers is 21. The larger number is 6 less than twice the smaller number. Find the two numbers.

Semenov [28]

The two numbers are 9 and 12.

6 0

3 years ago

What is f(x) - g(x)?

Gala2k [10]

$f(x)=9x^3+2x^2-5x+4\\\\g(x)=5x^3-7x+4\\\\f(x)-g(x)=(9x^3+2x^2-5x+4)-(5x^3-7x+4)\\\\=9x^3+2x^2-5x+4-5x^3+7x-4=9x^3-5x^3+2x^2-5x+7x+4-4\\\\=\boxed{4x^3+2x^2+2x}$

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4 years ago

jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selecti

Ksju [112]

A total of 1,716 selections of the 7 flowers are possible.

Step-by-step explanation:

Step 1:

There are 13 flowers from which Jeanine Baker plans to use 7 of them.

To determine the number of selections that are possible we use combinations.

The formula for combinations is; $^{n} C_{r}=\frac{n !}{(n-r) ! r !}$ .

Step 2:

In the given formula, n is the total number of options and r is the number of options to be selected.

For this question, $n = 13$ and $r=7$ .

So $^{13} C_{7}=\frac{13 !}{(13-7) ! 7 !} = \frac{13 !}{(6) ! 7 !} = 1,716.$

So a total of 1,716 selections are possible.

3 0

3 years ago

A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during

True [87]

Hello there!

The correct answer is D. 8.

Hope This Helps You!
Good Luck :)

4 0

3 years ago

Simplfy <br> 2x+4/-3 = 12

nasty-shy [4]

So you have the equation (2x+4)/-3=12
Multiply by -3 on each side.
2x+4=-36
2x=-20
x=-10
Hope this helps.

4 0

4 years ago