Use the app (Socratic) and just take a picture of that question and it will give you the answer
Answer:
2299 in^2
Step-by-step explanation:
The formula for the volume of a square pyramid of base A and height h is
V = (A)(h).
Here, the perimeter of the base is 44 inches, so that the length of one side must be (44 in) / 4, or 11 in. The area of a square of side s is A = s^2, so we have:
Here, V = (11 in)^2 * (19 in) = 2299 in^2
Answer:
60* Hope this helped!
Step-by-step explanation:
There are two ways to do this:
1: I know that this is an equilateral triangle because 180/3= 60, since i know that two angles are already 60* i immediately know that angle c is 60* also.
2: We already have two angles, we just need to figure out the third.
Since a triangle is 180* we just subtract angle a and b to get c
180-60+60=x
180-120=x
x=60
Answer:
x1 = t, x2 = -t and x3 = 0
Step-by-step explanation:
Given the system of equation
x1 + x2 + x3 = 0 .... 1
x1 + x2 + 9x3 = 0 .... 2
Subtract both equation
x3 - 9x3 = 0
-8x3 = 0
x3 = 0
Substitute x3 = 0 into equation 1
x1 + x2 + 0 = 0
x1+x2 = 0
x1 = -x2
Let t = x1
t = -x2
x2 = -t
Hence x1 = t, x2 = -t and x3 = 0
Answer:
Step-by-step explanation:
18x^2-21x-60
=18x^2-(45-24)x-60
=18x^2-45x+24x-60
=3x(6x-15)+4(6x-15)
=(3x+4)(6x-15)
