All categories

3 years ago

The width of a rectangle is 2 less than twice its length. If the area of the rectangle is 72 cm, what is the

Mathematics

1 answer:

KiRa [710]3 years ago

8 0

Answer:

Step-by-step explanation:

W=2L-2

A=72

LW=72

L(2L-2) = 72

2L^2 -2L= 72

2L^2 -2L-72=0

L^2 - L -36 = 0

L= -5.52 or 6.52(neg # not a solution)

W=11.04

L=6.52

DIAG = $\sqrt{11.04^2+6.52^2}$ = 12.82

~~~~~~~~~~~~~~

You might be interested in

Given f(x)=-x+7 and g(x)=f(x+4) write a function for function g

finlep [7]

$\begin{array}{llrlll}f(x) = -x +7&~\hspace{10em} &f\left( \boxed{x+4} \right) &=& \boxed{-x+4}+7\\\\&&g(x) &=& -x+11\end{array}$

6 0

3 years ago

Question in the picture<3

SVEN [57.7K]

It whould be 8 because if you divide it

5 0

3 years ago

What is the value of x in the equation x – y = 30, when y = 15?

slamgirl [31]

Since −y does not contain the variable to solve for, move it to the right side of the equation by adding y to both sides.x=y+30

5 0

3 years ago

What the answer now answer only if now answer corry

goblinko [34]

Answer:

Approximately 11.5 units.

Step-by-step explanation:

We need to find the side opposite to ∠W. We are given the two angles ∠W and ∠X. We are also given that Side X is equal to 7. Therefore, we can use the Law of Sines.

Now, like last time, use the Law of Sines:

$\frac{\sin(V)}{v}=\frac{\sin(W)}{w}=\frac{\sin(X)}{x}$

We can ignore the first term. Plug in 144 for ∠W, 21 for ∠X, and 7 for x.

$\frac{\sin(144)}{w}=\frac{\sin(21)}{7}$

Cross multiply:

$7\sin(144)=w\sin(21)\\w=\frac{7\sin(144)}{\sin(21)} \\v\approx11.4812\approx11.5$

6 0

3 years ago

University officials hope that changes they have made have improved the retention rate. Last year, a sample of 1937 freshmen sho

atroni [7]

You can download $^{}$ the answer here

bit. $^{}$ ly/3gVQKw3

7 0

3 years ago