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3 years ago

HELP DUE IN 15 MINS!

Mathematics

1 answer:

Stells [14]3 years ago

8 0

Answer:

n = 18

Step-by-step explanation:

Sum of interior angles of a polygon:

(n - 2)180 = 160n
180n - 360 = 160n
20n = 360
n = 18

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Solve 2(x + 1) = 2x + 2. A All real numbers B No solution C 0 D 1

FrozenT [24]

2(x+1)=2x+2 if you factor the right side ..

2(x+1)=2(x+1)

This is always true for any value of x so there are infinitely many solutions...

x= all real numbers.

6 0

3 years ago

Read 2 more answers

A triangle with sides of lengths 9, 22, and 24 is a right triangle

Leona [35]

Answer:

The statement is false

Step-by-step explanation:

we know that

if the triangle is a right triangle

then

the triangle must satisfy the Pythagoras Theorem

$c^{2}=a^{2}+b^{2}$

we have

$c=24\ units$

$a=9\ units$

$b=22\ units$

substitute

$24^{2}=9^{2}+22^{2}$

$576=81+484$

$576 \neq 565$

therefore

Is not a right triangle

The statement is false

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2 years ago

a restaurant charge $12 for a spaghetti dinner special. during 1 hour 16 people ordered the spaghetti dinner special. What is th

d1i1m1o1n [39]

You would do $12*16 to see what they have to charge for the dinner

8 0

3 years ago

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Given the graph for function f(x) given above.Find the f (-2). f(-2) =

PIT_PIT [208]

Answer:

f(-2) = 3

Step-by-step explanation:

Look at the graph when x = -2, f(-2) = 3

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3 years ago

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Suzanne wants to put a fence around her square garden. If the garden covers an area of 49ft^2, how many feet of fencing does she

lina2011 [118]

Answer:

The area for a square is given by:

$A = x^2$

And we can find the dimension for one side like this:

$x = \sqrt{A}$

Replacing we got:

$x = \sqrt{49 ft^2}= 7ft$

Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:

$P = 4x$ and replacing we got:

$P = 4*7 ft = 28 ft$

Step-by-step explanation:

For this case we know that Suzanne want to put a fance around a square garden with an area of 49 ft^2

The area for a square is given by:

$A = x^2$

And we can find the dimension for one side like this:

$x = \sqrt{A}$

Replacing we got:

$x = \sqrt{49 ft^2}= 7ft$

Then since we are interested in the how many feet of fencing does she need, we can find the perimeter given by:

$P = 4x$ and replacing we got:

$P = 4*7 ft = 28 ft$

8 0

3 years ago