$50 x .15% = $7.50
$50 - $7.50 = $42.50
$50 x .05% = $2.50
$42.50 + $2.50 = $45
Answer : $45
well complementary angles are 90 and 90, so this means that we have to equal 90 degrees.
39+x=90
90-39= 51
x= 51
Divide given eq. by -2, we get, x^2-4x+0.5=0. Here a=1, b=-4 and c=0.5. As disccriminant is given by sqrt(b^2-4*a*c).so sqrt((-4)^2-4*1*0.5)=3.7417.
Real roots are x1,2=-b+-discriminant
x1=-4+3.7417=-0.2583 and x2=-4-3.7417=-7.7417
Answer:
the first one is correct
Step-by-step explanation:
this is the same way as writing 7 to the power of four, but all of the sevens are negative in your case
