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Pepsi [2]
4 years ago
9

Plzzzz help!!!! I don't understand

Mathematics
2 answers:
Kazeer [188]4 years ago
6 0

Answer:

x = 1

Step-by-step explanation:

nirvana33 [79]4 years ago
6 0

Answer:

x=1

Step-by-step explanation:

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-1/3, -0.2, 5/3, 0.4, 1.3 order from least tot greatest
k0ka [10]
-1/3 = -0.3 repeating
-0.2
5/3 = 1.6 repeating
0.4
1.3

Ordered from least to greatest:
-1/3
-0.2
0.4
1.3
5/3

5 0
3 years ago
Read 2 more answers
If there are 9 girls and 11 boys in a class, what percentage of the class are girls
viva [34]
1. Find the total number of class members
    9 + 11 = 20

2. Find 9 as a percentage of 20
    9 / 20 = 0.45
    0.45 x 100 = 45%

<u>45% of the class are girls.</u>
6 0
3 years ago
E = cos20º + cos40º + cos60º + … cos160º + cos180º
r-ruslan [8.4K]

Answer:

C) – 1

Step-by-step explanation:

E = cos20º + cos40º + cos60º +cos80° + cos 100°+cos120° +cos140° +cos160º + cos180º

E= 0.9 + 0.76 + 0.5+0.17+(-0.17)+(-0.5)+(-0.76) + ( – 0.9 ) + (– 1 )

E= 0.9 + 0.76 + 0.5 +0.17 - 0.17 - 0.5 -0.76 – 0.9 – 1

E= – 1

So ; equal – 1

I hope I helped you^_^

8 0
3 years ago
A 172 ft. Building casts a 444 ft. Shadow from the sun. To the nearest tenth of a degree, what is the angle of depression?
DedPeter [7]

Answer:

22.77°

Step-by-step explanation:

Using SOH CAH TOA trigonometry identity

Height of the building (opposite side) = 172ft

Length of the shadow (hypotenuse) = 444ft

Using SOH

sin theta = opp/hyp

Sin theta = 172/444

Sin theta = 0.387

theta = arcsin0.387

theta = 22.77°

Hence the angle of depression is 22.77°

5 0
3 years ago
Solve 11 &lt; 3x+8 &lt; 20.
Vilka [71]

Answer:

1<x<4

Step-by-step explanation:

this helps me out a lot in my math class

5 0
3 years ago
Read 2 more answers
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