100 POINTS IM GIVING AND Part A: Find a rational number that is between 7.7 and 7.9. Explain why it is rational.

Part B: Find an irrational number that is between 7.7 and 7.9. Explain why it is irrational. Include the decimal approximation of the irrational number to the nearest hundredth.

Part A: 7.8 is a rational number between 7.7 and 7.9. It is rational because it can be written as a fraction of integers, such as 78/10.

Part B: Irrational number between 7.7 and 7.9 is 7.83539(never ending). It is an irrational number because it is not a repeating decimal and it is also never ending. It cannot be turned into a fraction.

The decimal equivalent to the nearest hundredth is :7.84

Hope it Helps! :)

A - 7.8 is a rational number between 7.7 and 7.9.  It is rational because it can be written as a fraction of integers, such as 78/10.

B -  An irrational number between 7.7 and 7.9 is 7.83539(never-ending). It is an irrational number because it is not a repeating decimal and it never ends. It cannot be turned into a fraction.  The decimal equivalent to the nearest hundredth is: 7.84

Step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.