Answer:
i. 15, 18, 20, 20, 25
ii.
a) 19.6
b) 20
c) 20
d) 10
Step-by-step explanation:
The answer is the option A, which is: A. Equilateral triangles.
The explanation for this answer is shown below:
By definition, a tetrahedron is a solid in three dimensions that has: six sides, four vertices and four triangular faces. These faces are equilateral triangles, which means that all the sides are equal and all the interior angles measure
degrees.
The tetrahedron is also called "triangular pyramid".
Answer: X > -10
Step-by-step explanation:
Answer: C, D
Step-by-step explanation:
31 - use the Pythagorean theorem to find the distance

a = 45
b = 28
plug in values

c = 53
answer choice C
32 - non linear functions are functions that aren't straight. if a function has anything besides a constant or an x variable to the power of 1, it is not linear
A - this is linear because -18 is a constant
B - this is linear because it only contains constants and an x variable to the power of 1
C - this is linear because it only contains an x variable to the power of 1
D - this is not linear because the x variable is on the bottom of the fraction, so x is to a power of -1
answer choice D