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4 years ago

Can someone please help me I really need help please help me thank you

Mathematics

2 answers:

REY [17]4 years ago

4 0

Answer: D 1800 degrees

Step-by-step explanation:

The sum of the interior angles can calculated by using the formula 180(n-2) where n is the number of sides of the shape. Plug 12 in for n and you'll get 1800 degrees which is the sum of all the interior angles in the polygon. Hope this helps :D

just olya [345]4 years ago

3 0

Answer:

1800 or D.

Step-by-step explanation:

Ill post a link an article that can help you master this, I found it very useful. Tell me if you need help after reading it

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A dress that is size x in France is equaivalent to size d(x) in the United States, where d(x)x32.

kobusy [5.1K]

Answer:

$(a)\ d'(x) = x + 32$ i.e. The inverse function

$(b)\ d'(10) = 42$ i.e. The French size of a dress if it is U.S. size 10 is 42.

Step-by-step explanation:

Given

$d(x) = x - 32$

Solving (a): The inverse function

$d(x) = x - 32$

Replace d(x) with y

$y = x - 32$

Swap y and x

$x = y - 32$

Make y the subject

$y = x + 32$

Replace y with d'(x)

$d'(x) = x + 32$

Hence, the inverse function is: $d'(x) = x + 32$

Solving (b): US size of 10

$d'(x) = x + 32$

Substitute $x =10$

$d'(10) = 10 + 32$

$d'(10) = 42$

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3 years ago

Jean's bedroom is 14 feet by 10 feet. She has chosen a carpet which costs $31.65 per square yard. This includes installation. De

chubhunter [2.5K]

Answer:

$14771055

Step-by-step explanation:

14 times 10= 140ft

140ft in yards is 46.67 in yards

46.67 times 31.65 =14771055

7 0

3 years ago

Which point is on the interior of ∠DEF?

LenKa [72]

G; Whatever point is in a 180 degree reach of the direction the angle is in is the interior. Think about it like a clock that can only reach for one side, up or down, of the 3 and 9. Whichever direction it is angled towards is the one you look in.

7 0

4 years ago

Read 2 more answers

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nalin [4]

Answer:

$\huge\boxed{\sqrt{10+4\sqrt6}=\sqrt6+2}$

Step-by-step explanation:

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3 years ago

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saveliy_v [14]

Answer:

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${ \tt{ = \frac{ {x}^{2} {y}^{4} (5x - 3y)}{45} }} \\$

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3 years ago