Question 12 The actual diameter of Uranus is 31,250 miles. In a scale drawing of the solar system, the diameter of Uranus is 125 centimeters.
What scale was used to make the model?
А
1 centimeter = 125 miles
B
1 centimeter = 250 miles
С
1 centimeter = 175 miles
D
1 centimeter = 500 miles

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

Write the expression 7x^3-28xy^2 as the product of 3 factors