3 years ago

PLEASE ANSWER ASAP!!!!! 10 points!!!!!

Mathematics

2 answers:

stiks02 [169]3 years ago

6 0

Answer:

A. Graph A

Step-by-step explanation:

stellarik [79]3 years ago

6 0

A. because it just is

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Find the length of a rectangle with a perimeter of 76 inches and width of 16 inches.

levacccp [35]

Answer:

22 inches

Step-by-step explanation:

Width (16) x 2 = 32

72 (perimeter) - 32 (width x 2) = 44 inches

44 divided by 2 is 22, which is the length.

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2 years ago

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Answer this problem. Simplify a. 63.19 b. 25.84 c. 81.49 d. 94.57

just olya [345]

81.49 is the answer. Have a great day!

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3 years ago

please help! I missed one day of class in algebra and missed learning this so I'm really confused! if someone could help me that

Kipish [7]

Perpendicular means it’s opposite reciprocals for example : the slope is 2 then the perpendicular line’s slope would be -1/2 because it flips the number also makes it the opposite sign.

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3 years ago

Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D

Ivahew [28]

Check the picture below.

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C\\\\
-------------------------------\\\\
\begin{cases}
d=10\\
e=18\\
f=22
\end{cases}\implies cos^{-1}\left(\cfrac{{{ 18}}^2+{{ 22}}^2-10^2}{2(18)(22)}\right)=\measuredangle D$

$\bf \implies cos^{-1}\left(0.893\overline{93}\right)=\measuredangle D\implies 26.63^o\approx \measuredangle D$

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3 years ago

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egoroff_w [7]

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