18. The perimeter is simply √3 + √3 + √3 + √3 or 4√3cm, since the perimeter is just all sides added together. You could add the decimal numbers together using a calculator, which I'm not sure if you're supposed to do in your class.
The area is just width times length, so √3 • √3 = 3cm².
19. The perimeter is 2√5 + 2(9 - √5).
This can also be written as 2√5 + 18 - 2√5, which leaves you with a perimeter of 18ft.
The area would be √5 • (9 - √5), which leaves you with (9√5 - 5)ft².
20. The formula for the perimeter (or circumference) of a circle is π times the diameter of the circle. Using the radius of the circle, 1/π, the diameter is 2/π, so
π • 2/π = 2. The circumference of the circle is 2 inches.
The area of the circle is calculated with the equation πr², so
π(1/π)² = π • 1/(π²) = π/(π²) = π. The area is simply π in².
0.19992 because u need to times the digits
Answer:
The correct option is C) 36
Step-by-step explanation:
Consider the provided table:
x - y
1 - 1
2 - 4
3 - 9
4 - 16
Observe the pattern:
If we square the x value we can find the corresponding y value.
For example
2² = 4
Where 2 is x value and 4 is corresponding y value, similarly
3² = 9
4² = 16
Now we need to find the y value when x=6.
To find this simply square the x value that will gives us the corresponding y value.
6² = 36
Hence, the correct option is C) 36
For 14, the answer is >. You inversed it. You are right about question 15.
Answer:
x= -14
Step-by-step explanation:
Please see attached picture for full solution.
