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Dovator [93]
4 years ago
14

I’m confused on this one

Mathematics
1 answer:
Nadya [2.5K]4 years ago
5 0

CD and ED are both radii of the circle, meaning they are equal to each other and equal x.

We can use the Pythagorean Theorem:

8^2 + x^2 = (4 + x)^2

64 + x^2 = 16 + 8x + x^2

Subtract x^2 and 16 from both sides:

8x = 48

x = 6

The answer is (B).

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The circular base of a desk lamp has a diameter of 8 inches.what is the lamp bases circumference
Veseljchak [2.6K]

Answer: 25.12 inches

Step-by-step explanation:

We know that the circumference of a circle is given by -

C= \pi d , where d = diameter of the circle.

Given : The circular base of a desk lamp has a diameter of 8 inches.

Then, the circumference of the  lamp base is given by :-

C= \pi (8)\text{ inches}

Substitute \pi=3.14 , we get

\Rightarrow\ C=(3.14) (8)\text{ inches}

\Rightarrow\ C=25.12\text{ inches}

Hence, the  lamp bases circumference= 25.12 inches

4 0
4 years ago
It takes 4 minutes to fil an empty aquarium to a depth of 2/4 meters. what is the unit rate in minutes per meter ? write your an
Kruka [31]

The unit rate in minutes per meter for filling the given aquarium  to a depth of 2/4 meters will be 8 minutes per meter.

We have,

Time taken to fill an aquarium to a depth of  \frac{2}{4} m = 4 minutes,

So,

Time = 4 minutes,

And,

Depth =  \frac{2}{4} m,

Now,

The unit rate in minutes per meter,

So,

We will Now convert given depth fraction,

i.e.

Depth =  \frac{2}{4} = 0.5m,

So,

It takes 4 minutes to fill a half meter,

Then,

To fill a meter it will take = \frac{4}{\frac{2}{4} } = 8 minutes

So,

The unit rate in minutes per meter is 8 minutes per meter.

Hence we can say that the unit rate in minutes per meter for filling the given aquarium  to a depth of 2/4 meters will be 8 minutes per meter.

Learn more about unit rate click here

brainly.com/question/26059245

#SPJ4

5 0
2 years ago
H (x) = 2x - 1, find h (9)<br> _<br> 3
Tomtit [17]

Answer:

17

Step-by-step explanation:

2(9)-1

18-1

17

Hope that helpa

7 0
3 years ago
Which three-dimensional solid can have a vertical cross section that is a circle with a radius of 7?
Advocard [28]

Answer:

D

Step-by-step explanation:

I just did that question

7 0
3 years ago
Read 2 more answers
Axel runs 10 kilometers in 85 minutes. At the same rate, how many minutes would he take to run 8 kilometers?
Likurg_2 [28]

Answer:

68

Step-by-step explanation:

85/10= 8.5 (sp he's running each km in 8.5 mins)

8.5x8= 68

7 0
3 years ago
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