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kipiarov [429]
3 years ago
12

Please answer quick!!!

Mathematics
1 answer:
zavuch27 [327]3 years ago
3 0
This is obviously a decreasing sequence.  Thus, the common ratio is the fraction 1/4, not the integer 4.  Eliminate C and D.  Next, at n=1, the value of the 1st term is 16, which is actually 16(1/4)^(1-1) = 16(1) = 16.  Thus, B is correct.

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I have no idea how to solve??
kupik [55]

120 = (1/3)b(8) =

B = 120/ (1/3)8

B = 120/ 2 2/3

B = 45

3 0
3 years ago
The diagram shows a track composed with a semicircle on each end. The area of the rectangle is 8,400 square meters. What is the
MrRa [10]

Answer:

468.4 meters

Step-by-step explanation:

Find the width of the rectangle.

The area of a rectangle is A=length*width. Substitute the values of length and area and solve for width.

A=length*width

8,400=140*width

60= width

Use the width of the rectangle to find the circumference of the semicircles. Since each semicircle is half of a​ circle, the perimeter of the two semicircles is equal to the circumference of one circle.

The circumference of a circle is equal to pi​d, where d is the diameter. The diameter of the semicircle is the same as  the width of the rectangle.

​So, the diameter is 60 meters. Substitute the diameter into the formula for the circumference and simplify using 3.14 for pi.

≈188.4

(2 times 140)+ 188.4

​So, the perimeter of the track is 468.4 meters.

7 0
3 years ago
Let f(x) = 2x – 1 and g(x) = 3x<br> Find g(f(x))
Gemiola [76]
6x-3

You have to put f(x) into g(x) to find the answer, so you rewrite it like this: 3(2x-1)
7 0
3 years ago
What is the slope of the line that crosses through points (0,0) and (1,2). How can Find the answer to the problem?
qwelly [4]

Answer:

The correct answer is m = 2/1 because they first point it reaches is (1,2) and so you insert those numbers (x,y) into the rise and run equation (y/x) and get the answer 2/1.

Hope this helps!

(Hint: M = Slope)



5 0
3 years ago
Does bin width matter when it comes to histograms? Why or why not?
maw [93]

Answer:

Avoid histograms with small bin widths that group data into lots of bins. A histogram constructed with small bin widths will show the distribution as a “pancake.” so no it does not help us see the pattern in the data.

Step-by-step explanation:

4 0
3 years ago
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