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Alisiya [41]
3 years ago
9

3.) Forty percent of a number is equal

Mathematics
1 answer:
meriva3 years ago
8 0


D

0.4 multiplied by x would give you the percentage and putting x over 2 would give you half of that number
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Harold randomly selected one square tile and one round tile from the sets shown below. What is the probability that Harold selec
Rus_ich [418]

Answer:

  C.  1/9

Step-by-step explanation:

Assuming the selections are independent, their joint probability is the product of the probabilities of the individual events.

  P(pink square) = (# pink squares)/(# squares) = 16/60 = 4/15

  P(red or blue round) = (#red or blue rounds)/(# rounds) = 15/36

Then the joint probability is ...

  P(defined event) = (4/15)(15/36) = 4/36 = 1/9

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3 years ago
Let's Apply Solve for the surface area of the following figures. ​<br><br>please i need this rn​
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Answer:

Step-by-step explanation:

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5) S.A of a Sphere = 4*pie*r^2 = 4* 3.142*15^2 = 2827.8mm^2

3 0
2 years ago
2sin^2 2x=2<br><br> In the domain [0,2pi)<br><br> What can x equal ( in radians).
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Bear in mind that, when it comes to trigonometric functions, the location of the exponent can be a bit misleading, however recall that sin²(θ) is really [ sin( θ )]²,


\bf 2sin^2(2x)=2\implies sin^2(2x)=\cfrac{2}{2}&#10;\\\\\\&#10;sin^2(2x)=1\implies [sin(2x)]^2=1\implies sin(2x)=\pm\sqrt{1}&#10;\\\\\\&#10;sin(2x)=\pm 1\implies sin^{-1}[sin(2x)]=sin^{-1}(\pm 1)

\bf \measuredangle 2x=sin^{-1}(\pm 1)\implies \measuredangle 2x=&#10;\begin{cases}&#10;\frac{\pi }{2}\\\\&#10;\frac{3\pi }{2}&#10;\end{cases}\\\\&#10;-------------------------------\\\\&#10;\measuredangle 2x=\cfrac{\pi }{2}\implies \measuredangle x=\cfrac{\pi }{4}\qquad \qquad \qquad \qquad \measuredangle 2x=\cfrac{3\pi }{2}\implies \measuredangle x=\cfrac{3\pi }{4}
3 0
3 years ago
Janet has a square piece of cloth. She cuts 3 inches off of the length of the square and 3 inches off of the width. The area of
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3 years ago
Solve using the system using elimination for x - y= -5 and 3x + y= 1
IceJOKER [234]
X = y - 5 

x = 1 - y / 3

I hope this helps. :)
7 0
3 years ago
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