Science
What would be the defination of the word science through a 7th graders eyes?
algerbra 1
Define a variable and write an algebraic expression for each phrase. the diffrence of 8 and a number the product of 2 and a number
science
FeS+HC1--->FeC1(2)+H(2)S. what is the balanced equation thanks. Wouldnt you need a coefficent of two in front of HCl? the balanced equation would result like this: FeS+2HCl-->FeCl2+H2S therefore, each side is equal Fe- 1 S- 1 H- 2 Cl-2
Physics
d) 58 you said find the angle that is double sin25 (not sin50) so 2 x sin 25 gets you .84523 find what angle that is using inverse sin sin^-1 (.84523) = 57.697
math
cards numbered 0 through 9 are in a bag. what is the probability you pull a card with a number greater than 7? i think it is 2/9. thanks. 0 through 9 There are 10 cards.
math
you flip a coin twice. what is the probility you get no heads? thanks. i think it is 1/4.is this right. 2/4 2/4 sooorrrrrrrrrrrrrrrrrrrrrrrrry but you are wrong i think well can you help me on my questions' yes, 1/4 is correct.
math
of a set of 10 cards, 3 have red circles, 4 have yellow triangles, and 3 have green diamonds. you choose one card at random and then replace it. then you choose a second card. what is the probability that both cards have yellow triangles? Find the probability of obtaining the ...
math
a bag contains 33 green marbles and 25 blue marbles. you select a marble at random from the bag. find the theoretical probability of selecting a blue marble. thanks Pr(blue)= number blue/total marbles
experimental probability
you spin a spinner 50 times. it lands on red 8 times, yellow 12 times, green 20 times, and blue 10 times. based on the results, what is the experimental probility of its landing on green or yellow? thanks I will be happy to critique your work on this. i have a different questi...
math
you roll a number cube. what are the odds in favor of rolling a 1 or a 5?thanks. There are 6 sides of a cube. You want one of 2 numbers to show up. So it's 2/6 chance....or 1/3 Matt I assume that you are talking about a die (Singular for "dice"), it has a total o...
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