Answer:
C
Step-by-step explanation:
Since AB and CD are perpendicular to each other, then
∠ 1 + ∠ 2 = 90°, that is
3x + 3 + 30 = 90
3x + 33 = 90 ( subtract 33 from both sides )
3x = 57 ( divide both sides by 3 )
x = 19 → C
It's B since sin is opposite divided by hypotenuse, so find the hypotenuse by using pythag therom and you will get 25, divide opposite of angle C which is 24 by hypotenuse which is 25
Answer:
9, 13
Step-by-step explanation:
let the first part be x
then the second part will be x+4
x+ x+4 = 22
x = 9
Answer:
27 woman
Step-by-step explanation:
In proportion form:
p/45 = 60/100
Simplify 60/100:
p/45 = 3/5
Multiply 5 to 45:
5 x 9 = 45
Do the same to the top:
3 x 9 = 27
Answer : p = 27.
27 woman.
The cost function is
c = 0.000015x² - 0.03x + 35
where x = number of tires.
To find the value of x that minimizes cost, the derivative of c with respect to x should be zero. Therefore
0.000015*2x - 0.03 = 0
0.00003x = 0.03
x = 1000
Note:
The second derivative of c with respect to x is positive (= 0.00003), so the value for x will yield the minimum value.
The minimum cost is
Cmin = 0.000015*1000² - 0.03*1000 + 35
= 20
Answer:
Number of tires = 1000
Minimum cost = 20