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sladkih [1.3K]
3 years ago
15

In ΔMNO, m = 140 cm, n = 660 cm and o=640 cm. Find the measure of ∠N to the nearest 10th of a degree.

Mathematics
1 answer:
konstantin123 [22]3 years ago
3 0

Answer:

92 is the right answer

Step-by-step explanation:

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Brainiest will be given . Please help me
mixas84 [53]

Answer:

If the shape of end face has n sides

Then, in total, there are n+2 faces

Using that formula

Faces in 20-sided polygon = n+2 = 20+2 = 22

Step-by-step explanation:

Pls vote as brainliest

6 0
2 years ago
Please help ASAP!
Kruka [31]

First, recall that

\sin(-\theta)=-\sin\theta

So if \sin(-\theta)=\dfrac15, then \sin\theta=-\dfrac15.

Second,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}

We know that \tan\theta>0 and \sin\theta, which means we should also have \cos\theta.

Third,

\sin^2\theta+\cos^2\theta=1\implies\cos\theta=\pm\sqrt{1-\sin^2\theta}

but as we've already shown, we need to have \cos\theta, so we pick the negative root.

Finally,

\tan\theta=\dfrac{\sin\theta}{\cos\theta}\iff\dfrac6{\sqrt{12}}=\dfrac{-\frac15}{\cos\theta}\implies\cos\theta=-\dfrac1{5\sqrt3}

Unfortunately, none of the given answers match, so perhaps I've misunderstood one of the given conditions... In any case, this answer should tell you everything you need to know to find the right solution from the given options.

6 0
3 years ago
2/3x-7=17 some help plssss!!!!!!!
Galina-37 [17]
Process:

2/3x -7 = 17
17 + 7 = 24
2/3x = 24

2/3 = 24/x
24 ÷ 2 = 12
12 x 3 = 36
x = 36



Answer: X = 36
5 0
3 years ago
Read 2 more answers
Which of the following is the volume of a square pyramid with a base of 6 in and a height of 7 in?
Karolina [17]
Volume = 1/3*a^2*h
So, V = (36*7)/3
          = 84
3 0
3 years ago
I CAN CONNECT DIVIDING BY A FRACTION TO MULTIPLICATION
evablogger [386]

4÷1/5=20

3÷1/10=30

3÷1/4=12

2÷1/12=24

4÷1/9=36

5÷1/6=30

4÷1/8=32

3÷1/3=9

5 0
3 years ago
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