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marissa [1.9K]
3 years ago
9

What is the circumference if 40

Mathematics
1 answer:
san4es73 [151]3 years ago
8 0
It should be 6.36cm. If not ask someone smart in your class.
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PLEASE HELP ME . how can the converse of the Pythagorean theorem help you determine whether the roped off area is in the shape o
trapecia [35]

Step-by-step explanation:

From the Pythagorean theorem we have:

a^2+b^2=c^2           <em>subtract b² from both sides</em>

a^2=c^2-b^2\to a=\sqrt{c^2-b^2}

Same:

b=\sqrt{c^2-a^2}

4 0
3 years ago
What does an equal sign mean mathematically?
DIA [1.3K]

Answer:

It means that the both sides of the expression in the given equation must be/are congruent.

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3 0
2 years ago
Helpppp me please!! I dont understand.
Dafna1 [17]

Answer:

X = 11

X = 7

Step-by-step explanation:

Part 1:

The measure of an inscribed angle is half the measure of an intercepted arc. So 1/2 mCE = m∠CDE

158 ÷ 2 = 79

You need to find x so you're going to set your equation of (8x - 9) = 79

Then you're going to add 9 to both sides to get 8x = 88

Divide both sides by 8 to get x = 11

Part 2:

We know that WY is 180 because it's a semicircle. Using this and the knowledge that ∠WXY is half the measure of the intercepted arc (180), we know that our equation should be (13x - 1) = 90

add 1 to both sides and our equation is (13x = 91)

Divide both sides by 13 and...

x = 7

8 0
3 years ago
Read 2 more answers
What is the surface area? 5 in 4 in 2 in
Dennis_Churaev [7]

I think the Answer is 76 in^2

Hope this helps

8 0
3 years ago
What is 0.00837 written in scientific notation?
Angelina_Jolie [31]

Answer:

8.37 x 10^-3

(Scientific Notation)

 

8.37 x 10^-3

(use the caret symbol [^] to type or write)

8.37E-3

(Scientific E-notation)

0.00837

(Real Number)

Step-by-step explanation:

How to convert numbers or decimals to scientific notation?

In scientific notation all numbers are written in the form of m×10n (m times ten raised to the power of n), where the exponent n is an integer, and the coefficient m is any real number, called the significand or mantissa. If the number is negative then a minus sign precedes m (as in ordinary decimal notation).

7 0
3 years ago
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