3 years ago

The amount of time a certain brand of light bulb lasts is normally distributed with a

Mathematics

1 answer:

My name is Ann [436]3 years ago

6 0

If anyone has seen the answers to this question then I need please post it

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Evaluate 33/5 - 1/10

azamat

Answer:

$\large\boxed{\dfrac{13}{2}=6\dfrac{1}{2}=6.5}$

Step-by-step explanation:

We have the different denominators.

The common denominator is 10.

$\dfrac{33}{5}=\dfrac{33\cdot2}{5\cdot2}=\dfrac{66}{10}$

We can subtract these fractions now.

$\dfrac{33}{5}-\dfrac{1}{10}=\dfrac{66}{10}-\dfrac{1}{10}=\dfrac{66-1}{10}=\dfrac{65:5}{10:5}=\dfrac{13}{2}\\\\\dfrac{13}{2}=\dfrac{12+1}{2}=6\dfrac{1}{2}$

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4 years ago

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2.8 is 4% of what number

AnnZ [28]

70 you solve by making a proportion 2.8/x =4/100

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4 years ago

-15=2t-11 does any one know it please

Murljashka [212]

Add 11 to both sides:

-4=-2t

divide 2 by both sides

2=t

Hope it helps! Comment if you have any questions!

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3 years ago

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Please give me the right answer if the algebraic expression is 11 decreased by k is thirty-two. How to write it.

Free_Kalibri [48]

11 - k = 32
- k = 21
k = -21

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4 years ago

For the concentric circles shown, the radius of the inner circle is 3 centimeters and the distance from the

Tema [17]

Answer:

Step-by-step explanation:

Area of the inner circle = 3^2 π = 9 π

total area = 10^2 π = 100π

area of the shaded region

100π - 9 π = 91 π

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3 years ago