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3 years ago

HURRY 15 POINTS !!! MATH ON EDU !!!

Mathematics

1 answer:

frutty [35]3 years ago

6 0

Answer:

The answer is C.

Step-by-step explanation:

It was right on ed20

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Can someone help me with this i don’t understand at all

Sedbober [7]

Answer:

Use trig

Step-by-step explanation:

sin(55) = x/21

x = 21sin(55)

use calculator in degree mode

cos(55) = y/21

21cos(55) = y

5 0

3 years ago

Perimeter of a equilateral triangle is 27cm. Find the length of each sides.

Mademuasel [1]

Answer:

EQUILATERAL TRIANGLE = 3/27

$\frac{27}{3 = } 9$

I HOPE IT IS HELPFUL

7 0

3 years ago

Find the solution to the following system of equations by using Substitution. To receive full credit, substitution must be used

Sever21 [200]

Answer:

see the attached picture.

3 0

3 years ago

??? Answer toys word problem

Alenkasestr [34]

6 is a constant, so we know that y is greater than or equal to 6.

x is just a variable, but it has to be positive, so it could be anything greater than or equal to 0.

Total flour = white flour + wheat flour, therefore y = x + 6.

4 0

4 years ago

The cosine law

romanna [79]

$\bf \textit{Law of sines}
\\ \quad \\
\cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c}\\\\
-------------------------------\\\\$

$\bf \cfrac{sin(88^o)}{39.9}=\cfrac{sin(A)}{31}\implies \cfrac{31\cdot sin(88^o)}{39.9}=sin(A)
\\\\\\
sin^{-1}\left[ \cfrac{31\cdot sin(88^o)}{39.9} \right]=sin^{-1}\left[ sin(A) \right]
\\\\\\
sin^{-1}\left[ \cfrac{31\cdot sin(88^o)}{39.9} \right]=\measuredangle A
\\\\\\
50.93841^o\approx \measuredangle A\qquad thus\qquad \measuredangle C\approx 41.0619^o$

3 0

4 years ago