3 years ago

The diameter of a circle is 20 centimeters.

Mathematics

2 answers:

Scrat [10]3 years ago

8 0

Answer:

62.8 centimeter is it's correct answer.

Nikolay [14]3 years ago

4 0

Answer:

10 centimeters

Step-by-step explanation:

The radius is 1/2 of the diameter

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Use the diagram below to find the missing angle measures

ruslelena [56]

Answer:

I have attached the answers below and how i got the answers :)

Hope this helps!

6 0

3 years ago

When a number is increased by 2.8%, the result is 56. What is the original number to

Sever21 [200]

Answer:

The original number was 54.5.

Step-by-step explanation:

If a number is increased by 2.8%, then it is 102.8% of it's original number.

In mathematics, "of" in virtually all cases means "multiplied by".

Therefore, we do the opposite:

1. Convert to a decimal.

102.8% = 1.028

2. Divide by the decimal.

$56 \div 1.028 = 54.47$

3. Round it to the nearest tenth.

54.47 rounds to 54.5.

6 0

3 years ago

Write the expression only using positive exponents: <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B8x%20%5E%7B3%7D%20%7D%7B2

ladessa [460]

Your answer would be 4 over x to the sixth which would look like this

4
_
x^6

the ^ symbol means it’s an exponent

5 0

3 years ago

Ohms Law states that in and electrical circuit E=IR, where E represents the pontial (in volts). I represents the current (in amp

gogolik [260]

Answer:

40 A

Step-by-step explanation:

E=I.R ==> I=E/R

if E=6 and R=0.15 then:

I= (6/0.15)= 40 A

7 0

3 years ago

Read 2 more answers

Solve the following equation for x<br><br> 10=2-4(ax-3)

likoan [24]

Answer:

$\large\boxed{x=\dfrac{1}{a}}$

Step-by-step explanation:

$2-4(ax-3)=10\qquad\text{subtract 2 from both sides}\\\\-4(ax-3)=8\qquad\text{divide both sides by (-4)}\\\\\dfrac{-4(ax-3)}{-4}=\dfrac{8}{-4}\\\\ax-3=-2\qquad\text{add 3 to both sides}\\\\ax-3+3=-2+3\\\\ax=1\qquad\text{divide both sides by}\ a\neq0\\\\x=\dfrac{1}{a}$

7 0

3 years ago