Answer:
desmos dot com
Step-by-step explanation:
Step-by-step explanation:
- 2+3b25
b=books
3b23
- 50+25L200
L=lesson
25L150
L6
Hope that helps :)
To solve for a variable, you need to get it (x) by itself.
2x² - 4x + 5 = 6 Subtract 6 from both sides
2x² - 4x - 1 = 0 Plug this into the Quadratic Formula
a = 2 , b = -4 , c = -1
x =
Plug in your values
x =
Simplify
x =
Simplify
x =
Simplify by removing a 2 from every term
x =
Simplify by taking the fraction apart
x =
Change
to 1
x = 1
Simplify
to
x = 1
Answer:
166 mi
Step-by-step explanation:
The length of an arc of a circle is the product of the radius and central angle measure in radians. For this problem, the central angle is the difference in latitude. The degree measure is converted to radian measure by multiplying by π/180°.
distance = (42.9° -40.5°)(π/180°)(3960 mi) ≈ 166 mi
The distance between the two cities is about 166 miles.
_____
You can get an answer good within 0.1% by using 60 nautical miles per degree. The 2.4° difference in latitude gives 144 nautical miles, which translates to 166 statute miles, so gives the same answer.