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3 years ago

6

Please help I’ll give you brain lists points and likes

1 answer:

zhuklara [117]3 years ago

3 0

Answer:I would say D

Step-by-step explanation: weak means the less right so D

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Area = 300 square feet

m_a_m_a [10]

Answer:

$Length=24.32$ feet

$width=12.32$ feet

Step-by-step explanation:

Let x be the width of a rectangle

Let l be the length of a rectangle

Let A be the area of rectangle

Given.

Length must be 12 feet longer than width

therefore

$Length=12+w$

$l=12+w$

Area of rectangle

$A=300$

We know that area of rectangle is

$A=l\times w$ ---------------------(1)

put all known values in equation 1

$300=(12+x)\times x$

$x^{2} +12x=300\\x^{2} +12x-300=0$

Find roots by this formula

$=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}$

$=\frac{-12\pm\sqrt{12^{2}-4(1)(-300)}}{2(1)}$

$=\frac{-12\pm\sqrt{1344}}{2}$

$x=-6+4\sqrt{21} \\x=-6-4\sqrt{21}$

$x=12.32\\x=-24.32$

check both value in equation 1

for $x=12.32$

$A=(12+12.32)\times 12.32$

$A=299.62$

$x=12.32$ is satisfy the equation

So The length of rectangle $l=12+12.32$ =24.32 feet

And width is 12.32 feet

3 0

4 years ago

What expressions are equivalent to 4(4a+5) which 3 is correct?

Effectus [21]

The answer is a,c, and d

7 0

3 years ago

Lesson 1 math 6th grade<br> Ratio problems

Naddika [18.5K]

Oh those were fun am I right or were those really easy sorry I can’t help but what do you need help with

4 0

3 years ago

Read 2 more answers

Given the information w = 4 inches and h = 7 inches, find two ways to evaluate 2w+2h. What is the geometric significance of this

joja [24]

I believe the 2 ways would be
$2w + 2h$
and
$2(w + h)$

and this equation is significant because it is the perimeter formula

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3 years ago

Sally and Eddy had a total of $580 after spending $80 and eddy had 240 left how much money does Sally have?

levacccp [35]

Answer:

260

Step-by-step explanation:

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3 years ago