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Gekata [30.6K]
3 years ago
7

Find the value of each variable. Lines that appear tangent are tangent, and the dot is the center. (Answer in the form a=? b=? c

=? d=?)

Mathematics
1 answer:
Anni [7]3 years ago
3 0

Answer:

a = 60°/2 = 30°

b = 84/2 = 42°

c = (100+60)/2 = 80°

d = 360-100-60-84 = 116°

Answered by GAUTHMATH

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If 15 pen cost $3.90, which equation would help determine the cost of 6 pens?
madreJ [45]

Answer

1.56

Step-by-step explanation:

You must find the unit rate. To do so, you must divide 3.90 by 15. That will give you 0.26. After, times 6 and .26 to get your answer. Hope this helps.

8 0
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Please help quickly!
Anuta_ua [19.1K]

Answer:3100 with 9%

Step-by-step explanation:

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Find the magnitude of a vector with initial point A(3, 4, 10) and terminal point B(8, 4, –2).
Fantom [35]

Answer:

B

Step-by-step explanation:

Use the distance formula in 3 dimensions

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2+(z_{2}-z_{1})^2      }

with (x₁, y₁, z₁ ) = (3, 4, 10) and (x₂, y₂, z₂ ) = (8, 4, - 2)

d = \sqrt{(8-3)^2+(4-4)^2+(-2-10)^2}

   = \sqrt{5^2+0^2+(-12)^2}

    = \sqrt{25+144}

    = \sqrt{169}

     = 13 → B

4 0
3 years ago
In a circle, the circumference and diameter vary directly. Which of the following equations would allow you to find the diameter
Sergeeva-Olga [200]
The answer is <span>B.154/d = 44/14 
</span>
<span>In a circle, the circumference (C) and diameter (D) vary directly:
C = kD
k = C/D

Circle 1: k = C1/D1
Circle 2: k = C2/D2</span>

C1/D1 = C2/D2
C1 = 154
D1 = ?
C2 = 44
D2 = 14

154/D1 = 44/14
So, the choice B. is correct.
8 0
3 years ago
1. In the number 3687.54 20, what digit is in the hundredths place?
matrenka [14]

The four is in the hundredths place.

Right one to the decimal goes: tenths, hundredths, thousands, etc.

5 0
3 years ago
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