Since we know AD, CD and angle D, we can use the law of cosines, which states that
![AC^2 = AD^2+CD^2 - 2AD\cdot CD\cos(D)](https://tex.z-dn.net/?f=AC%5E2%20%3D%20AD%5E2%2BCD%5E2%20-%202AD%5Ccdot%20CD%5Ccos%28D%29)
Plugging the values, we have
![AC^2 = 17^2+13^2 - 2\cdot 17\cdot 13\cos(42)](https://tex.z-dn.net/?f=AC%5E2%20%3D%2017%5E2%2B13%5E2%20-%202%5Ccdot%2017%5Ccdot%2013%5Ccos%2842%29)
Which leads to
![AC^2 = 458 - 442\cos(42) \approx 129.530](https://tex.z-dn.net/?f=AC%5E2%20%3D%20458%20-%20442%5Ccos%2842%29%20%5Capprox%20129.530)
Taking the square root, we have
![AC \approx \sqrt{129.530} \approx 11.3811](https://tex.z-dn.net/?f=AC%20%5Capprox%20%5Csqrt%7B129.530%7D%20%5Capprox%2011.3811)
Answer:
x = 5, x = 15; The zeros represent the number of photos printed to produce a maximum profit.
Step-by-step explanation:
F(x) = −x²+ 20x − 75
Let's f(x)= 0
0= -x²+20x-75
0= x²-20x+75
0=x²-5x-15x+75
0= x(x-5)-15(x-5)
0= (x-5)(x-15)
The zeros are
X= 5 or x = 15
And the xeros represent a number of photos printed to produce maximum profit
Answer:
$11,875
Step-by-step explanation:
3.75×5 = 18.75%
×10000 = 18.75 × 100 = 1875 (we cut the zeros so that it will be easier to solve the equation)
10,000 + 1875 = $11,875 after 5 years
$1875 has accrued in Latasha's savings account
$11,875 is the total amount in Latasha's savings account after 5 years
Answer:
wheres the question?
Step-by-step explanation: