Answer:
Step-by-step explanation:
-7(x^2 -6x +8)=0
-7(x-4)(x-2)=0
Answer:
The perimeter of ΔABC is 43 units
Step-by-step explanation:
An illustrative diagram is shown in the attachment below.
To find the perimeter of the triangle, we will first determine the length of the unknown sides.
First, we can determine /BC/ using the Sine rule
From Sine rule
∴
In the diagram, and
m∠A=60° and m∠C=45°
∴
To find /AC/, will first determine m∠B
m∠A + m∠B + m∠C = 180° (Sum of angles in a triangle)
60° +m∠B + 45° = 180°
m∠B + 105° = 180°
m∠B = 180° - 105°
m∠B = 75°
Also, using the sine rule
From the diagram,
Now,
The perimeter of ΔABC = /AB/ + /BC/ + /AC/
=
= 43.09 units
≅ 43 units
Hence, the perimeter of ΔABC is 43 units.
If you would like to know which equation would cause a consistent-dependent system, you can find this using the following steps:
3x - 4y = 8 /*3
3 * 3x - 3 * 4y = 3 * 8
9x - 12y = 24
The correct result would be <span>9x - 12y = 24.</span>
55% would be the correct answer
Answer:
Angle ACD is 68°
Step-by-step explanation:
ABC is 68°
<ABC = <BCD
» But <ACD = ½ × (2 × <BCD)