Answer:
when yoU TAKE THE SQUARE ROOT YOU GET BOTH THE POSITIVE AND NEGATIVE answers so the answers are 7 and -7
Step-by-step explanation:
being that it is x squared not 2x
Answer:10
Step-by-step explanation:
2+3+2+3
is
10
Its simply just 8 minus 25 to find x but there is no fraction.
Working:
7y + 42 = -14x
7y = -14x - 42
y = ((-14x - 42) ÷ 7)
Expand and Simplify:
y = -2x - 6
Factorise:
y = -2(x +3)
x = -3
Substitute x=-3 into equation.
7y + 42 = -14(-3)
7y + 42 = 42
7y = 0
Divide 7, on both sides, to get rid of the coefficient (7), thus, making y the subject.
y = 0 [anything divide or times to zero, will always remain zero]
Following model: (x,y)
Answer: (-3,0)
Hope this helps. Chur :)
Answer:
°
°
°
°
°
°
Step-by-step explanation:
The triangles are drawn below.
Since, CD is the height to AB, therefore, CD is perpendicular to AB.
Therefore, angles °
Also, is same as .
Therefore, °
Now, triangles ΔCBD and ΔCAD are right angled triangles.
So, for the right angled triangle ΔCAD,
Now, from the figure,
From ,
Hence, all the angles of the triangles ΔCBD and ΔCAD are:
°
°
°
°
°
°