Because in the function f(x) all you do is plug in the value that is given...7
2*7-5=14-5=9
Your answer is 9.
The area ratio is the square of the linear dimension ratio. So if the merry-go-round base is circular, the area contains the square of the radius. If a polygon, the base can be divided into triangles. The area of each triangle involves the product of the base length and the height, so since both have the same change of length, the product will square the scaling ratio.
Let’s say the ratio of corresponding lengths is x:1 then the ratio of the base areas is x²:1.
The question doesn’t provide any figures.
Let’s put some in as an example. Let the actual merry-go-round be circular with a diameter of 20 feet, while the model is one foot in diameter. So the ratio of the actual ride and it’s model is 20:1. The area of the base of the actual ride is 100π sq ft. The area of the base of the model is π/4 sq ft. We expect the ratio of these areas to be 20²=400. 100π/(π/4)=400.
Answer:
2.17
Answer and Explanation:
The critical value of z for 97% confidence interval is 2.17, which is obtained by using a z score table, that is: {eq}P(-2.17 < Z <...
Answer:
B
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given the quadratic equation as:
Let us put 
for simplicity of the equation:
Now, the equation becomes:
Now, let us try to solve the quadratic equation:
So, the solution to the given trigonometric quadratic equation is:
and
Let us try to find the values of 
in the interval 
.
can have a value equal to 
in 1st and 2nd quadrant.
So, can be
For ,
So, the answer is:
