What is the equation of the line perpendicular to the line y = start fraction 4 over 9 end fractionx – 2 that passes through the point (4, 3)?
a. y = –start fraction 4 over 9 end fractionx – 2
b. y= nine-fourthsx + 6
c. y = –nine-fourthsx + 12
d. y = –nine-fourthsx – 12

write an equation of the line that passes through points (3, 7) and (5, 11).
a. y – 7 = 5(x – 3)
b. y – 7 = 2(x – 3)
c. y + 7 = 5(x – 3)
d. y + 7 = 2(x + 3)

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

How many glue sticks are in a basket containing 96 scissors, if the ratio of glue sticks to scissors is 19 to 57.

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5