Which equation shows the result of substituting and expression for y from the first equation into the second equation for the

given system?

y = x+5

Tv-2x=2

(5 - X) - 2x = 2

(x + 5) - 2x = 2

(x + 5) + 2x = 2

(x + 5) - 2x = 0

Peter has collected data to find that the finishing times for cyclists in a race has a normal distribution.

The frequency of an AM radio is 1.4 x 106 hertz (cycles per second). Approximately, how many cycles are completed in a minute?

Multiply. Write the product as one power. A^8 • A^5

Carlos will be 46 years old in 10 years. samira will be half of carlos' current age in 10 year. How old is samira now?

What multiplies to - 36 and adds to 5

Find the answer to this equation x + 28 = 52

Joel made egg sandwiches and tuna sandwiches in the ratio 2:3. He then made 15 more tuna sandwiches and the ratio changed to 1:3. How many sandwiches did Joel make in all show your work and explain how u found your answer.

Timmy has x bushels of apples, he sells 10 bushels and then gets a shipment of 4y bushels of apples. Which expression represents the number of bushels Timmy now has?

Chad drove 168 miles in 3 hours and has 280 more miles to go. How fast (in miles per hour) did he drive the first 3 hours? Explain how you got your answer.

Verify the identity. Show your work. (1 + tan2u) (1 - sin2u) = 1