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Drupady [299]
3 years ago
5

The figure shows triangle ABC inscribed in circle D.

Mathematics
2 answers:
motikmotik3 years ago
7 0

Answer: 46

Step-by-step explanation:

Just got it on a test so I wanted to help you guys out. Thank you guys in the comment section of the other answer. That one is wrong.

Liono4ka [1.6K]3 years ago
3 0

Answer:

68°

Step-by-step explanation:

44/2=22

180-22-22

=136

136/2

=68

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B. There are 270 deer on a reservation. The deer population is decreasing at a rate of 3.2% per year.
Naddika [18.5K]

Answer:

i need points sorry

Step-by-step explanation:

7 0
3 years ago
Elmer loves! He started with 150 rabbits but the number keeps doubling every year. How many rabbits will Elmer have after five y
Citrus2011 [14]

Answer:

2400 rabbits

Step-by-step explanation:

1st year: 150

2nd year: 300 (150+150)

3rd year: 600 (300+300)

4th year: 1200 (600+600)

5th year: 2400 (1200+1200)

(this is possibly wrong actually)

5 0
3 years ago
A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 18 cm long and 4 cm wide. The di
Rashid [163]

Answer:

the answer is 84.56

Step-by-step explanation:

A = lw

A = 18 · 4

A = 72

The area of the rectangle is 72 cm2.

Circle

A = πr2

A = 3.14(2)2

A = 3.14(4)

A = 12.56

The area of the circle is 12.56 cm2.

Find the area of the bookmark.

A = 72 + 12.56

A = 84.56

8 0
3 years ago
Could someone please help me with this​
horrorfan [7]

Answer:

F

Step-by-step explanation:

F doesn't represent a function because -1 and 2 have multiple outputs. A function is when an input only has one output. F is not a function.

4 0
3 years ago
A container initially containing10 L of water in which there is 20 g of salt dissolved. A solution containing 4 g/L of salt is p
Kay [80]

Answer:

A(40)= \frac{-200}{10+40} +4 (10 +40)=-4+200 = 196

Step-by-step explanation:

For this case the solution flows at a rate of 2L/min and leaves at 1L/min. So then we can conclude the volume is given by V= 10 +t

Since the initial volume is 10 L and the volume increase at a rate of 1L/min.

For this case we can define A as the concentration for the salt in the container. And for this case we can set up the following differential equation:

\frac{dA}{dt}= 4 \frac{gr}{L} *2 \frac{L}{min} - \frac{A}{10+t}

Because at the begin we have a concentration of 8 gr/L and would be decreasing at a rate of \frac{A}{10+t}

So then we can reorder the differential equation like this:

\frac{dA}{dt} +\frac{A}{10+t} =8

We find the solution using the integration factor:

\mu = -\int \frac{1}{10+t} dt = -ln(10+t)

And then the solution would be given by:

A = e^{-ln (10+t)} (\int e^{\int \frac{1}{10+t} dt})

And if we simplify this we got:

A= \frac{1}{10+t} (c + \int (10 +t) 8 dt)

And after do the integral we got:

A= \frac{c}{10+t} +4 (10 +t)

And using the initial condition t=0 A= 20 we have this:

20 = \frac{c}{10} +40

c= -200

So then we have this function for the solution of A:

A= \frac{-200}{10+t} +4 (10 +t)

And now replacinf t= 40 we got:

A(40)= \frac{-200}{10+40} +4 (10 +40)=-4+200 = 196

8 0
3 years ago
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