3 years ago

In which situation would it be appropriate to use square feet as a measurement?

Mathematics

1 answer:

emmainna [20.7K]3 years ago

4 0

Answer:

The correct answer is B ; Karla must determine the area of a floor in her house.

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A parabola is the set of all points that...

Vlada [557]

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is equidistant from a focus point and a line

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3 years ago

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Hello there, <br><br> can someone please help me with this question

monitta

Answer:

10 sides.

Step-by-step explanation:

Two same interior angles + 72 degrees = 360.

Thus, the interior angle of the polygon is $\frac{360-72}{2} =144$ .

The formula to find the interior angle of a polygon is $\frac{180(n-2)}{n}$

$\frac{180(n-2)}{n} =144$

Multiply both sides by n:

$\frac{180\left(n-2\right)}{n}n=144n$

$180\left(n-2\right)=144n$

Expand:

$180n-360=144n$

Add 360 to both sides:

$180n-360+360=144n+360$

$180n=144n+360$

Subtract 144n from both sides:

$180n-144n=144n+360-144n$

$36n=360$

Divide both sides by 36:

$\frac{36n}{36}=\frac{360}{36}$

$n=10$

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3 years ago

Ava has been asked to create the advertising art for the school skating party. She is using paper that is 15.5 inches wide. The

marshall27 [118]

15.5in -0.75in= 14.75in No, because the left over space on the paper with the border is 14.75in wide and the design is 14.5in wide.

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3 years ago

Oduct of (x2 + 3)(x - 5).

Zanzabum

Answer: 2x^2-7x-15

Step-by-step explanation:

reorder the terms (x*2+3)*(x-5)

multiply the parentheses

(2x+3)*(x-5)

collect like terms (2x^2-10x+3x-15)

product= 2x^2-7x-15

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3 years ago

A bag of birdseed that normally cost $22.25 is marked up to $25.30. What is the percent markup ?

LenaWriter [7]

25.3-22.25 = 3.05
What percent of 22.25 is 3.05?
22.25x = 3.05
x = .1370786517
It's marked up 13.7%

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3 years ago