Answer:
-0.391 < x < 0.391
Step-by-step explanation:
The Maclaurin series for cosine is:
cos(x) = ∑ (-1)ⁿ x²ⁿ / (2n)!
So the next term would be -x⁶/6!. When the absolute value of this is less than the error:
│-x⁶/6!│< 0.000005
x⁶ / 720 < 0.000005
x⁶ < 0.0036
-0.391 < x < 0.391
Answer:
$36.25
Step-by-step explanation:
Surface area: 2*l*w+2*w*h+2*h*l
2*2*2.5+2*2.5*0.5+2*0.5*2
10+2.5+2
14.5 sq. ft.
14.5*2.50=36.25
Remember that a reciprocal are when you switch the numerator and denominator, like they trade spots so the reciprocal is 3/11
Answer:
BC = 34
Step-by-step explanation:
Given that ∠B = ∠C then the triangle is isosceles.
Thus AB and AC are congruent, that is
4x - 8 = 2x + 12 ( subtract 2x from both sides )
2x - 8 = 12 ( add 8 to both sides )
2x = 20 ( divide both sides by 2 )
x = 10
Hence
BC = 3x + 4 = (3 × 10) + 4 = 30 + 4 = 34
