Q7.
The domain of the function y = sin x - 2 is x ≥ 2.
Answer: FALSE because is All Real Numbers
Q8.
The domain of the function y = cos x + 1 is All Real Numbers.
Answer: TRUE
Q9.
What's the domain of the function y = sin x?
Answer: All Real Numbers
Q10.
What is the range of the function y = sin x?
Answer: -1 ≤ y ≤ 1
Answer:
$14.39
Step-by-step explanation:
The formula for continuous compounding of interest is:
A = Pe^(rt), were P is the initial dollar amount, A is the final amount, r is the interest rate as a decimal fraction, and t is the time in years.
Here we have $2109 = $500e^(10r) and need to solve for r.
To do this, take the natural log of both sides, obtaining:
ln 2109 = ln 500+ 10r.
Then 10r = ln 2109 - ln 500, and
ln 2109 - ln 500
r = --------------------------------------------
10
= .1439
The interest rate was 14.39%.
Answer:
The answer is x= 
, x= 
Step-by-step explanation:
x^2=a
-9x=b
3=c
Plug into formula.
Equation: 
Simplify the equation.
Equation: 
Subtract 81 and 12.
Equation: 
Spit into two equations
Equation 1:
Equation 2:
Hope this helps!
<h3>
Answer: 920</h3>
=================================================
Explanation:
The front face is a triangle with area of base*height/2 = 15*8/2 = 60 square feet.
The back face is identical to the front face, so we have another 60 square feet.
The left rectangular wall is 20 ft by 8 ft tall. Its area is 20*8 = 160 ft^2
The right slanted rectangular face is 20 ft by 17 ft. Its area is 20*17 = 340 ft^2
Lastly, the bottom rectangle floor is 15 ft by 20 ft to give an area of 15*20 = 300 ft^2
------------------
To summarize so far
- Front face = 60 ft^2
- Back face = 60 ft^2
- Left face = 160 ft^2
- Right slanted face = 340 ft^2
- Bottom floor = 300 ft^2
Add up those areas to get the overall surface area.
60+60+160+340+300 = 920
4/7=28/(x+18)
4/7 =28/x+18
-18 | -18
|
__________
-17 2/7=28/x
*28 | *28
|
__________
-484 = x
