All categories

3 years ago

Hi! plz help it would mean a lot ty! and plz don't troll! first person who solves it get brainlist!

Mathematics

2 answers:

Alina [70]3 years ago

7 0

Well im not sure but I believe it’s none of the above. BUT.. when I do the math I get 0.240... for A and B I get the negative of that. If it has to be positive, then I believe it should be none of the above

Margaret [11]3 years ago

5 0

Answer:

its b

Step-by-step explanation:

You might be interested in

A square garden plot measures 180 square feet. A second square garden plot measures 320 square feet. How many more feet of fence

REY [17]

The second garden plot will require 8√5 feet more fence than the first garden plot.

Further explanation:

In order to find the fence, we have to find the perimeter of both squares

So,

Area of Square 1: A1=180 square feet

Area of Square 2: A2=320 Square feet

Let x be the side of square 1:

Then,

$A_1=x^2\\180=x^2\\Taking\ square\ root\ on\ both\ sides\\\sqrt{180}=\sqrt{x^2}\\x=\sqrt{2*2*3*3*5}\\x=\sqrt{2^2*3^2*5}\\x=2*3\sqrt{5}\\x=6\sqrt{5}$

For second square:

Let y be the side of second square

$A_2=y^2\\320=y^2\\Taking\ square\ root\ on\ both\ sides\\\sqrt{320}=\sqrt{y^2}\\y=\sqrt{2*2*2*2*2*2*5}\\y=\sqrt{2^2*2^2*2^2*5}\\y=2*2*2\sqrt{5}\\y=8\sqrt{5}$

Perimeter of First Square:

$P_1=4x\\=4(6\sqrt{5})\\=24\sqrt{5}\ feet$

Perimeter of Second Square:

$P_2=4y\\=4(8\sqrt{5})\\=32\sqrt{5}\ feet$

The smaller perimeter will be subtracted from larger perimeter to find that how much more fence will be needed.

$P_2-P_1=32\sqrt{5}-24\sqrt{5}\\=(32-24)\sqrt{5}\\=8\sqrt{5}\ feet$

The second garden plot will require 8√5 feet more fence than the first garden plot.

Keywords: Radicals, Operations on Radicals

Learn more about radicals at:

#LearnwithBrainly

6 0

4 years ago

a pair of snow boots at an equipment store in big bear that originally cost $60 is on sale for $36.what is the rate of discount

Ksivusya [100]

The answer is a 40% discount because it costs $24 less than the original price and 24 divided by 60 is .4 or 40%!

4 0

3 years ago

Read 2 more answers

PLEASE HELP!!!!!<br> x^2 + 12xy + 35y^2

SVEN [57.7K]

The answer is = (x + 5y) (x + 7y)

Break the expression into two groups.

x^2 + 12xy + 35y^2
(x^2 + 5xy) (7xy + 35^2)

Factor out x from x^2 + 5xy: x(x + 5y)
Factor out 7y from 7xy + 35y^2: 7y(x + 5y)
=x(x + 5y) + 7y(x + 5y)

Next, factor out the common term (x+ 5y).

Answer = (x + 5y) (x + 7y)

7 0

3 years ago

Read 2 more answers

Whats the perimeter of this small parallelogram?

Arisa [49]

Answer:

Perimeter = 18 units

Step-by-step explanation:

one side = 4

other side² = 3² + 4² + 25

other side = √25 = 5

Perimeter = (2 x 4) + (2 x 5) = 18 units

4 0

3 years ago

The math club is sponsoring a bake sale.If their goal is to raise at least $200,how many pies must they sell at $4.00 each in or

Tems11 [23]

The math club must sell 50 pies in order to reach the goal of 200 dollars

4 0

4 years ago