(Scientific Notation in the Real World MC)The length of a bacterial cell is about 5 x 10−6 m, and the length of an amoeba cell is about 3.5 x 10−4 m. How many times smaller is the bacterial cell than the amoeba cell? Write the final answer in scientific notation with the correct number of significant digits. 1.4 x 101 7 x 101 143 x 101 7 x 103

The diameter of a bacterial colony is 15.5 mmCalculate the cross-sectional area in mm2:_____ mm2Use the maths keyboard to write your answer in standard form and to three significant figures.

(Scientific Notation in the Real World MC)The approximate weights of two animals are 4.23 x 103 lbs. and 8.7 x 103 lbs. Find the total weight of the two animals. Write the final answer in scientific notation with the correct number of significant digits. 1.29 x 104 lbs. 1.3 x 104 lbs. 5.1 x 103 lbs. 12 x 103 lbs.

A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm. What is the actuallength of the bacteria? If the photograph is enlarged 20,000 times only, what would be its enlargedlength?

The number 0.005900, in standard scientific form can be expressed as ______a) 5.9×103b) 59×104c) 5.9×102d) 5.9×104

You are solving a measurement problem where the numbers 4.5160 x 10−3, 2.09 x 107, and 5.8 x 103 are multiplied. How many significant digits should the product have? 2 1 5 3