2 years ago

Tim wants to build a rectangular fence around his yard. He has 42

Mathematics

2 answers:

PSYCHO15rus [73]2 years ago

5 0

Answer:

I think its D

Step-by-step explanation:

Agata [3.3K]2 years ago

3 0

Answer:

D) 6w = 42; l=14

Step-by-step explanation:

since we know,

perimeter of a rectangle = 2 ( length + width)

therefore,

=> 2 ( l + w ) = 42

but we know, l = 2w

=> 2 ( 3w ) = 42

=> 6w = 42,

You might be interested in

Which statement shows how two polynomials 4x + 6 and 2x2 − 8x demonstrate the closure property when multiplied?

steposvetlana [31]

Answer:

$8x^{3} -20x^{2} -48x$ is a polynomial

Step-by-step explanation:

Given : polynomials $4x+6$ and $2x^{2} -8x$

Solution:

$(4x+6)*(2x^{2} -8x)$

$4x(2x^{2} -8x)+6(2x^{2} -8x)$

$8x^{3} -32x^{2}+12x^{2} -48x$

$8x^{3} -20x^{2} -48x$

Polynomial :An expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable.

Thus $8x^{3} -20x^{2} -48x$ is a polynomial

Hence option A is correct.

7 0

2 years ago

Read 2 more answers

According to a Wired magazine article, of e-mails that are received are tracked using software that can tell the e-mail sender w

VladimirAG [237]

Answer:

a. 12

b. 7.200 and 2.683

Step-by-step explanation:

The computation is shown below:

Given that

P = 0.40 and n = 30

The expected value of received e-mails is

= n × p

= 30 × 0.4

= 12

The variance of emails received is

= n × p × (1 - p)

= 30 × 0.4 × 0.6

= 7.200

Now

The standard deviation of emails received is

= sqrt(variance)

= 2.683

We simply applied the above formula

8 0

1 year ago

There are 64 singers in the choir.The tenors and sopranos are in separate rows.There are 8 singers in each row.There are 4 rows

stealth61 [152]

4 rows because 4 times 8 equals 32, so then there are only 32 singers left. 64-32=32, and once again 4 times 8 equals 32.

7 0

1 year ago

Read 2 more answers

When x is 2, y is 4, p is 0.5, and m is 2. If x varies directly with the product of p and m and inversely with y, which equation

galben [10]

Can you elaborate please? What does p and m mean?

3 0

2 years ago

Read 2 more answers

Kate writes an algebraic expression using each of the variables x and y only once. they first expression she writes uses x and y

kotykmax [81]

Answer:

B: Using x and y factor results in an expression of greater value than using x and y as terms.

Step-by-step explanation:

For her first expression, x and y are factors;

For her second expression, x and y are written as terms;

x + y

For x and y are both negative integers, then;

-x * -y = xy ............... 1

-x + (-y) = - x - y

= - (x + y) .............. 2

Therefore, the value of x and y factors is greater than that when x and y are as terms. Thus the correct option is B.

3 0

1 year ago