It is the same for all circles. To find the circumference, one must use the constant equation of 2pir. This equation stays the same, no matter what.

7 0

4 years ago

A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 130 feet from a pili

Dimas [21]

Answer:

x = 225.16 feet

Step-by-step explanation:

Given that,

The angle between the piling and the pier is 60°.

A surveyor has set up his transit on one side of the lake 130 feet from a piling that is directly across from a pier on the other side of the lake.

We need to find the distance between the piling and the pier. Let the distance be d. Using the trigonometry to find it as follows :

$\tan(60)=\dfrac{x}{130}\\\\x=\tan(60)\times 130\\\\x=225.16\ feet$

So, the required distance is 225.16 feet.

4 0

3 years ago

I need help please. It’s due tomorrow. I’ve tried three times and gotten the same answer, which my textbook says is wrong

Anna11 [10]

Convert what is inside the parenthesis to sixths.

(3/6+2/6-1/6)^3+2/3x4/5

(4/6)^3+2/3x4/5

(2/3)^3+12/15

8/27+12/15

(8x12/27x15)

96/405

32/135

Don't know if that's right though

5 0

4 years ago

Help solve both of these questions

Effectus [21]

Let's solve for a.
p
x
=
x
3
−
4
x
2
+
a
Step 1: Flip the equation.
x
3
−
4
x
2
+
a
=
p
x
Step 2: Add -x^3 to both sides.
x
3
−
4
x
2
+
a
+
−
x
3
=
p
x
+
−
x
3
−
4
x
2
+
a
=
−
x
3
+
p
x
Step 3: Add 4x^2 to both sides.
−
4
x
2
+
a
+
4
x
2
=
−
x
3
+
p
x
+
4
x
2
a
=
−
x
3
+
p
x
+
4
x
2

Answer:
a
=
−
x
3
+
p
x
+
4
x
2

3 0

3 years ago