Evaluate the following statement and determine whether it is a valid scientific hypothesis: "Lightning and thunder are caused by angry ghosts."   a-This is not a valid hypothesis because it cannot be objectively tested.   b-It is not a valid hypothesis because it cannot be used to form predictions.   c-It is a valid hypothesis.   d-It is not a valid hypothesis because the subject cannot be observed with a naked eye.

Which of the following correctly describes A=90090 in scientific notation (with correct sig figs)? More than one answer MAY be correct. In these answers "E#" represents 10 raised to the power of #. 9.0090E5 None of the other answers is correct. 9.009E4 O 9.009E5 O 9.0090E3

Solve the following questions: 1. How long is the edge of a cube whose mass is 1 kg of pure gold? 2. How long is the edge of a cube whose mass is 1 kg of Oak wood? 3. How large is the radius of a sphere whose mass is 1 kg of pure gold? 4. How big is the radius of a sphere whose mass is 1 kg of Oak wood?

Assessment Multiple Choices. Choose the letter of the correct answer and write it on a separate sheet of paper. 1. It refers to the closeness of value to its true value a. асcuracy b. precision c. both a and b d. fitting line 2. Find the equation of the line that fits the data with least error. 46.00 570.55 38.01 505.77 48.44 649.60 27.77 378.69 26.35 327.67 18.87 264.76 33.97 464.60 16.06 167.38 7.71 132.09 3.93 76.87 a. y= 12.72x + 12.72 b. у- 1.72х -1.72 c. y- 12.72x - 12.7 d. y- 2.72x + 2.72 3. Mr. Arbolado harvested his luffa (patola) in the school garden and he notice it's too long, so he wants to know how long it is. He measures the huffa (patola) three times. What should be the reported length of the luffa (patola)? First measurement 0.59 t 0.005 m Second measurement 0,60 0.005 m Third measurement 0, 61 0.005 m a. 0,62 t 0.015 m b. 3.1 t 0.015 m c. 4.24 0.015 m d. 0.6 t 0.015 m