1. The distance from the Earth to the Moon is roughly 384,000 kilometers. Write this number in scientific notation 2. Write `4\cdot10^{5}` in standard notation Hint: Move the decimal 5 place

3.Write `1.8499\cdot10^{9}` in standard notation Hint: Move the decimal 9 places

4. Write `1.8499\cdot10^{9}` in standard notation Hint: Move the decimal 9 places

25/4

step-by-step explanation:

call segment cd's length x. because dc and ab are parallel, angle acd and cab, so triangles adc and abc are similar and we can set up the equation x / ac = ac / ab, or x / 5 = 5 / 4 and x = 25/4.

80%

step-by-step explanation:

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value