Answer:
The answer to your question is letter D
Step-by-step explanation:
We know that the sum of the internal angles in a triangle equals 180°.
So, B = 30°, C = 90° and A = ?
A + B + C = 180°
Substitution
A + 30 + 90 = 180
Solve for A
A = 180 - 30 - 90
A = 180 - 120
A = 60°
To find "b". use the trigonometric function sine
sin B = 
sin B x hypotenuse = Opposite side
Opposite side = sin 30 x 10
Opposite side = 0.5 x 10
Opposite side = b = 5.0
To find "a" use the trigonometric function cosine
Cos A = adjacent side / hypotenuse
Adjacent side = a = cos A x hypotenuse
Adjacent side = a = cos 60 x 10
a = 0.866 x 10
a = 8.66
Answer:
$0.04/lb
Step-by-step explanation:
Cost per lb for the 3 lb package is $7.80/(3 lb), or $2.60/lb)
Cost per lb for the 1/2-lb package is $1.28 / [(1/2) lb], or $2.56.
The difference in cost per pound is $2.60 - $2.56, or $0.04/lb
Answer:
Step-by-step explanation:
Given that an exit poll of 1000 randomly selected voters found that 515 favored measure A.
Sample proportion p = 
Margin of error 99% = 2.58*SE
=
99% confidence interval =
------------------------
(Right tailed test)
STd error = 
Test statistic Z = p diff/std error =
p value = 0.1714
Answer:
103.714 approximately 104
Step-by-step explanation:
2^r
2 × 22/7 ×16.5
To answer this problem you have to use a ratio, if it begins with 8:500, multiply 40 or 20,000/500 on both sides to get 320:20,000
