Answer:
sorry I don't know about this Question
Angle <QAB is =15° because the opposite angles of an isosceles triangle are equal.
The length of the straight line AB = 80cm
<h3>Calculation of angle of a triangle</h3>
The angle at a point = 360°
Angle AQB= 360 - 210° = 150
But the angle that makes up a triangle= 180°
180-150= 30°
But <QAB = <QBA because triangle AQB is an isosceles triangle.
30/2 = 15°
To calculate the length of the straight line the following is carried out using the sine laws.
a/ sina, = b sinb
a= 8cm, sin a { sin 15)
b= ? , sin B = 150
make b the subject formula;
8/sin15= b/sin 150
b= 8 × sin 150/sin 15
b= 80cm
Learn more about isosceles triangle here:
brainly.com/question/25812711
#SPJ1
Answer:
d+9
Step-by-step explanation:
sum implies addition
so you would add d and 9
since d is a variable the most you can simplify is
d+9
Answer:
K= -240
2/6k + 80 = 3/6k +120
2/6k -2/6k + 80 = 3/6k-2/6k +120
80 = 1/6k + 120
80 -120 = 1/6k +120 -120
-40 = 1/6k
-40 / 1/6 = 1/6k / 1/6
k = -240
