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Anvisha [2.4K]
3 years ago
5

Math problem help please

Mathematics
1 answer:
diamong [38]3 years ago
3 0

Answer:

I say B.

Step-by-step explanation:

sorry if I'm wrong. Have a nice day :)

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A right rectangular prism is shown.
Svet_ta [14]
So what you are looking for is the hypotenuse of the triangle DCF. 

We know DC is 3cm, so we need CF.

BC and CF and CF create a right triangle. 

Using Pythagorean Theorem, CF is about 10.2

Now using Pythagorean Theorem again, 3^2 +10.2^2=113

The sqaureroot of that is 10.6. So 10.6 is your answer
3 0
3 years ago
Ahmed says that 0.505005000500005 is a rational number because it is a repeating decimal, is he correct? Explain your reasoning.
Dafna1 [17]
Yes he is correct as rational numbers are any numbers, like- 0.5444, -2.8, 7, -3, 1/2, -1/9. Thus, 0.505005000500005 is a rational number as it is a repeating decimal.
8 0
2 years ago
I really need help with this Triangle problem. ​
dedylja [7]

Answer:

12

Step-by-step explanation:

Here we use SOHCAHTOA

Seeing as we have the hypotenuse and we are working to find out the opposite, we use SOH

Sin(x)= Opposite/Hypotenuse

Sin(45) = x/12\sqrt{2} \\

×12 root 2

sin(45) times 12 root 2=  12

x=12

3 0
3 years ago
A can in your pantry has a 1.4 inch radius and is 5 inches tall. What is the surface area of the can to the nearest tenth?
WITCHER [35]
Formula for surface area is pi DH.diameter is radius multiplied by 2 which is 2.8.pi is22/7.multiply 22/7 to 2.8 which is 8.8.multiply 8.8 with height(5 inches) to get 44.0 as the answer
6 0
3 years ago
Help me please in zearn
viktelen [127]

Answer:

Circumference ≈ 82.9

Step-by-step explanation:

The formula for calculating the circumference of a circle is:

C = 2πr

Where 3.14 is pi (as stated on your screen)

And r is the radius.

Knowing this substitute those values

C = 2(3.14)(13.2)

Multiply 2 and 3.14.

C = (6.28)(13.2)

Multiply 6.28 and 13.2.

C = 82.9 when rounded.

3 0
3 years ago
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