Answer:
The quadratic curve has the best correlation to the given data.
Step-by-step explanation:
Enter the data into a spreadsheet or graphing calculator and try the different regression options to see which gives the highest R-value. Here, the quadratic regression does that.
It’s the solution for this question
Answer:
<u><em>x=3.4</em></u>
Step-by-step explanation:
Use the Pythagorean theorem:
a and b are the legs and c is the hypotenuse (x)*
Insert the values:
Simplify exponents
Simplify addition:
Find the square root:
Finito.
*The hypotenuse is the side opposite the 90° angle and the longest side of a triangle, always.
Answer: 900
Step-by-step explanation: the basic formula for volume is length × width × height so 12x5x15=900
We have the base measurement for the triangles composing the sides. We need their altitude.
Imagine a right triangle with these sides:
(1) from the apex of the pyramid to the point on the base directly underneath it (471 ft);
(2) from the middle of base edge to the point underneath the apex (half of 708 ft = 354 ft);
(3) the hypotenuse, the altitude of a triangular side.
Using the Pythagorean Theorem, we find the hypotenuse to be
√(471^2 + 354^2) = about 589.2 feet
Now we add up the four triangles' areas. Each is base * altitude / 2, so:
4 x 708 x 589.2 / 2
= 2 x 708 x 589.2
= 834,307.2 square feet, the lateral area.
