Answer: -6 +/- 
= x
<u>Step-by-step explanation:</u>
y = x² + 12x - 5
<u> +5 </u> <u> +5 </u>
y + 5 = x² + 12x
<u> + 36 </u> <u> +36 </u> <em>added (12 ÷ 2)² to both sides</em>
y + 41 = (x + 6)²
To find the zeros, let y = 0:
0 + 41 = (x + 6)²
= x + 6
<u>-6 </u> <u> -6 </u>
-6 +/- = x
Answer:
49
Step-by-step explanation:
the number is "ab" (2 digits).
ab - 10 = 3×(a+b)
a number is actually the sum of multiplying the digits with their associated powers of 10.
a×10 + b - 10 = 3a + 3b
7a - 2b = 10
b-1 = 2×a
b = 2a + 1
7a - 2×(2a+1) = 10
7a - 4a - 2 = 10
3a = 12
a = 4
b = 2×4 + 1 = 9
Since the area of any thing is length time width, we can divide 4864 by 152 to get the width of the garden. This gives us 32. Now we need to add 152 + 152 + 32 + 32 to get our total feet of fencing necessary. This would give us 368 feet of fencing.
The tangent AD at point C forms a right angle to circle B, such as ∠ACB=90° and ∠ABC=55°.
We also know that the summation of all angles in a triangle is 180°. Thus we have the expression below:
180°=∠ABC + ∠ACB + ∠BAD
180°=55°+90°+∠BAD
∠BAD=35°
Therefore, the answer is 35°.
7 hours because 1 load = 1 hour so 7 loads = 7 hours
