<span>1)
-4x-8y=16
8x+16y=-16
Multiply fhe first equation by 2:
=> -8x - 16y = 32
Add this new equation with previous second equation
0 = 16, which means that the system has no solutions.
2)
4x-10y=-14
3x+8y=-26
</span>
Multiply the first equation by 3 and the second by - 4:
12x - 30y = - 42
-12x - 32y = 104
Add the two new equations
-------------------------
0 - 62y = 62
=> y = -1
replacing in the first equation:
=> <span>
4x-10(-1) = -14</span>
=> 4x + 10 = - 14
=> 4x = - 14 - 10
=> 4x = - 24
=> x = - 24 / 4
=> x = - 6
Answer: x = - 6 and y = - 1
We are tasked to solved for the length of the ramp having an inclination of 15 degrees with the ground and 10 feet from the end of the ramp to the base of the building of the ground. Using trigonometric properties, we have a formula given an angle and the its opposite sides which is,
sin(Angle)=opposite/hypothenuse
hypothenuse would be the distance or the length of the ramp.
so we have,
sin(15)=10/hypothenuse
Cross-multiply, we have,
hypothenuse=10/sin(15)
using scientific calculator having a DEG mode,
hypothenuse=38.63703
Rounding of in nearest tenth we get,
hypothenuse=38.6 ft
Therefore, the ramp is 38.6 ft long
Given that the value of the car is given by the function:
y=15000(1/5)^x
the graph will be represented as follows:
From the graph we see that the domain is all real numbers.
f(x) + n - translate the graph of f(x) n units up
f(x) - n - translate the graph of f(x) n units down
f(x + n) - translate the graph of f(x) n units left
f(x - n) - translate the graph of f(x) n units right
--------------------------------------------------------------------------
We have
y = |x - 2|
f(x) = |x| → f(x - 2) = |x - 2|
<h3>Answer: c. Translate the graph of y = |x| two units right.</h3>
Answer:
* 2/3 / formula then multiply the numbers then you get the answer