Determine whether each number is rational or irrational

Answers

Answer 1

Answer:

A is rational

B is irrational

Product of a and b is irrational.

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What is the approximate perimeter of a semicircle with a radius of 9mm? Use pi as 3.14.
Express your final answer to the nearest hundredth.

Answers

Act like it's a whole circle and find the perimeter, then divide by 2.

P = 2 * pi * r

P = 2 * 3.14 * 9

P = 56.52

Now divide by 2:

P = 28.26

Answer:

I took the test and the answer is 46.26.

Step-by-step explanation:

What is tan 11 pie/6

Answers

Answer:

5.75

Step-by-step explanation:

a map of a new dog park shows that it is triangular and that the sides measure 18.5m, 36.6 m, and 16.9 m. Are the dimensions correct?

Answers

First, you can draw a graph or coordinate plane to solve this. But i will do this for you.... OK, so the dimensions are correct, according to my graph... Don't worry, i did the coordinate plane for months in class... Your welcome and hope you do well for your hw.

Why might someone choose to use the Y intercept in the slope to graph a line

Answers

Because Y-intercept shows where the line intersects with the y-axis. It's easier to graph if you have a starting point. Something to go off of and use the slope to continue the line.

A circular lampshade with a diameter of 14 inches has a length of wire that goes around exactly one time. How many inches of wire are needed to go around the lampshade exactly one time?

Answers

the questions is how long the circumference of the lampshade is, and that is given by:
c = diameter*pi
c = 14*3.14
c = 43.96
so, there are needed 43.96 inches of wire to go around the lampshade one time

D. 47 1151 47 95
128 72
e, 28, 72
statements that are true solve each problem using number disks
as you 2. Circle the 127 46
68 51
I change 10 ones for 1 ten.
I change 10 ones for 1 ten.
I change 10 tens for 1 hundred.
I change 10 tens for 1 hundred.
The total of the two parts is 163.

Answers

10 tens for one 100. is this that common core b.s

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