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yKpoI14uk [10]
2 years ago
11

Help me with this please!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
kifflom [539]2 years ago
3 0

Answer:

\sqrt{6} units = g

Step-by-step explanation:

You can solve this either of the 2 ways:

#1.) Sin(60) = g/2\sqrt{2}

=> Sin(60) * 2\sqrt{2} = g

=> \sqrt{6} = g

#2.) Cos(30) = g/2\sqrt{2}

=> Cos(30) * 2\sqrt{2} = g

=> \sqrt{6} = g

Hope this helps!

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If the measure of one exterior angle of a regular polygon is 156 degrees , how many sides does the polygon have ?
Burka [1]

Answer:

15  sides

Step-by-step explanation:

with regular polygons it is best to work with the exterior angles since the sum of exterior angles is  360  degrees

one exterior angle =  180  − one interior angle

∴  one ext. <  =  180  −  156 =  24  degrees

no of sides  = 360 /24 =  15  s i d e s

8 0
3 years ago
4n+78n-3/4=942???<br>PLEASE SHOW STEPS ON HOW YOU GOT IT!
Rainbow [258]
4n+78n-3/4=942
     l
   82n - 3/4=942
           +3/4  +3/4(.75)
    82n=942.75
    divide 82 by both sides
     n = 11.49 or 11.5
6 0
3 years ago
Read 2 more answers
In a certain city of several million people, 7.7% of the adults are unemployed. If a random sample of 300 adults in this city is
Lilit [14]

Answer: 0.2643

Step-by-step explanation:

Given : The proportion of  adults are unemployed : p=0.077

The sample size = 300

By suing normal approximation to the binomial , we have

\mu=np=300\times0.077=23.1

\sigma=\sqrt{np(1-p)}=\sqrt{300\times0.077(1-0.077)}\\\\=4.61749932323\approx4.62

Now, using formula z=\dfrac{x-\mu}{\sigma}, the z-value corresponding to 26 will be :-

z=\dfrac{26-23.1}{4.62}\approx0.63

Using standard distribution table for z , we have

P-value=P(z\geq0.63)=1-P(z

=1-0.7356527=0.2643473\approx0.2643

Hence, the probability that at least 26 in the sample are unemployed  =0.2643

6 0
3 years ago
Triangle A B C is shown. Angle A C B is a right angle. An altitude is drawn from point C to a point on side A B to form a right
mars1129 [50]

Answer:

BC=15\ units

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC

Applying the Pythagorean Theorem

AB^2=AC^2+BC^2

substitute the given values

17^2=8^2+BC^2

solve for BC

BC^2=17^2-8^2

BC^2=225

BC=15\ units

5 0
3 years ago
Read 2 more answers
Mrs. Rodriguez is going to use 6 1/3 yards of material to make two dresses . the large dress requires3 2/3 yards of material. ho
Dmitry_Shevchenko [17]

Answer:

She has 6 1/3. The larger dress need 3 2/3. So 6 1/3 - 3 2/3 = 2 2/3

So Mrs. Rodriguez will need 2 2/3 for the smaller dress

Step-by-step explanation:

7 0
3 years ago
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