[ Answer ]
[ Explanation ]
- System Of Equations
-----------------------------------
- [Substitute] Y = X + 10
- Isolate x for x + x + 10 = 10: x = 0
For y = 10
Substitute x = 0
Y = 0 + 10
0 + 10 = 10
y = 10
- Solutions
X = 0
Y = 10
If the temperature on the ground is 70 F then
2 answers:
Answer:
- 11000: 31.5 °F
- 15000: 17.5 °F
- 18000: 7 °F
Step-by-step explanation:
When you have repetitive calculations to do, it is often convenient to let a calculator or spreadsheet do them for you.
Basically, put the value of "a" into the formula and do the arithmetic.
<u>Example</u>: for 11000 ft, -0.0035·11000 +70 = -38.5 +70 = 31.5
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Answer:
B
Step-by-step explanation:
First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial . We can now use the quadratic formula to solve.
Remember that the quadratic formula is
Substitute the numbers from the equation into the formula.
Simplify:
Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with .
Hope this helps!
Answer:
BC=7
Step-by-step explanation:
The circle can be circumscribed into the quadrilateral, if the sums of the opposite sides of the quadrilateral are eqaul.
Thus,