Answer:
x=-7
tep-by-step explanation:
the line is on the x axis on -7
2p+9=25
2p=25-9
2p = 16
p = 8
You can prove this is true because
8 pens plus 8+9 pencils are 25
"Do unto the left side exactly what you do unto the right side."
Get value of 'A' from a sin table and C is already given 90, hence B can be calculated using angle sum property of a triangle.
<span>alternately, using pythagorus th., find the third side of triangle and then you will know sinB. </span>
<span>again from sin table, get B
</span>sinA = 243/312 = 0.7788
<span>A = 51.16 degrees </span>
<span>B = 180 - 90 - 51.16 = 38.64 degrees (fourth choice) </span>