B. -2/3
C. 2/3
D. 3/2
(Question attached)
Answer:
The solution is (3,13) and (-1,-3). So none of the mentioned options is correct.
Step-by-step explanation:
Given that
Now, by susbstituting the value of 'y' from equation i to equation ii, we get
Now by factorization, equation iii can be written as
x = 3 and x = -1
By putting the values of x in equation i, we get
y = 4(3) + 1
y = 12 +1
y = 13
and
y = 4(-1) + 1
y = -4 +1
y = -3
Therefore, the solution is (3,13) and (-1,-3). So none of the mentioned options is correct.
the shape is a pyramid which means theres 4 triangles (all are equal) and a square at the bottom
Tringle area: 1/2bh
1/2(4)*5=10
area of triangle is 10m
Square area: bh
4*4=16
area of square 16m
surface area:
4(10)+16= 56
surface area: 56m
Answer:
google SA of a pyramid and fill it out
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
===================================================
Explanation:
The area of the parallelogram is equal to the base times height. The formula to use is A = b*h. The height and base are always perpendicular to one another.
The base is some unknown variable b. Multiply the base by the height 15 to get 15*b which is equal to the area 135
Therefore, 15*b = 135
Divide both sides by 15 and we isolate b
15b = 135
15b/15 = 135/15
b = 9
So the base is 9
Check:
area = base*height = 9*15 = 135
so the answer is confirmed
side note: we never use the value 17 at all. It is likely put in there as a distraction.
Answer:
9
Step-by-step explanation:
Khan Academy