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Aleonysh [2.5K]
3 years ago
15

X - (-20) = 5 _________________

Mathematics
2 answers:
tamaranim1 [39]3 years ago
8 0

X - (-20) = 5

When you subtract a negative, change it to addition:

X + 20 = 5

Subtract 20 from both sides:

X = -15

Aleksandr-060686 [28]3 years ago
3 0

Answer:

\boxed{x=-15}

Step-by-step explanation:

x-(-20)=5

\sf Distribute \ negative \ sign.

x+20=5

\sf Subtract \ 20 \ from \ both \ sides.

x+20-20=5-20

x=-15

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Let the height of the hill is h ft and the distance of A from the hill be x ft and distance from B to hill is y.

It is given distance between A and B is 45 ft. ∠BAO = 65° and ∠ABO = 80°.

We have to find the distance of B from the top of the hill.

Now from ΔACO tan 65 = \frac{h}{45-x} = 2.14

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From ΔBCO tan80 = \frac{h}{x} = 5.67

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3 years ago
B(n) = -1 (2)^n-1 What is the 5th term in the sequence?
bija089 [108]

Answer:

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