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sergeinik [125]
3 years ago
12

Please help, This is past due. I’ll give brainiest to the first with an explain.

Mathematics
2 answers:
Sindrei [870]3 years ago
5 0

Answer:

13

FC + CB = \frac{DC}{2} +\frac{AB}{2}

Step-by-step explanation:

Line CB is half of Line AB, which the questions says line AB is the length of 20. 20/2 = 10.

Line CB is 10.

The question also says that point F is the midpoint of line DC. Line DE is 12. Line DC is half of 12, which means its 6. F is the midpoint of Line DC which means it's also half of Line DC, which is 3.

Line FC is 3.

The question asks you to find the value of Line FC PLUS Line CB. So 10 + 3 = 13.

Your answer is 13.

Lelu [443]3 years ago
5 0

Answer:

13

Step-by-step explanation:

AB and DE split each other equally in half so

if AB = 20 then CB = 10

and if DE = 12 then DC = 6

meaning that FC = 3

3+10=13

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Please answer asap!!
sesenic [268]

Answer:

-9

Step-by-step explanation:

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7 0
3 years ago
The value of Adam's model railway is $550.
garik1379 [7]

Answer:(c)

Step-by-step explanation:

Given

The initial value of Adam's model is A_o=\$550

the value increases exponentially with the rate of r\%

Time period t=5\ years

Final amount A=\$736

Exponential growth is given by

\Rightarrow A=A_o(1+r)^t

Putting values

\Rightarrow 736=550(1+r)^5\\\\\Rightarrow (1+r)^5=1.338

\Rightarrow 1+r=1.05999\\\Rightarrow r=0.05999\ or\ 5.99\%\approx 6\%

Option (c) is correct

6 0
3 years ago
Find the value of z.
Leokris [45]

The exterior angle at the intersection of the tangent and secant has a measure that is half the difference between the intercepted arcs.

... ((10x+20) -80)/2 = 2x+15

... 5x -30 = 2x +15

... 3x = 45

... x = 15

So, the unknown arc to the right has measure

.. 10x + 20 = 10·15 +20 = 170

And the arcs of the circle total 360°.

... 80 + z + 170 = 360

... z = 360 - 250 = 110 . . . subtract 250 from both sides

The appropriate choice for the value of z is

... B. 110

3 0
4 years ago
What is 5,137,900 mm to cm
docker41 [41]
5,137,900 mm= 513,790 cm You are welcome :)
4 0
3 years ago
Read 2 more answers
Can someone help me please
Misha Larkins [42]

Answer:

-28

Step-by-step explanation:

4 0
3 years ago
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