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Karo-lina-s [1.5K]
4 years ago
13

Geometry! please help

Mathematics
1 answer:
Triss [41]4 years ago
4 0

Answer: 5.2

Step-by-step explanation:

This is known as the heart beat method. Search it up for a better explinations.

Basically you putting 3/x = x/9 and simplifying to get sqrt27.

Search this up and watch the video for a better explination

heartbeat method geometry

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a person Can travel 120 miles in one direction. the return trip was accomplished at double the speed and took three hours less t
BaLLatris [955]
40 mph would be 120 miles in 3 hours (120/40)

80 mph is 120 miles in 1.5 hours(120/80)

3 - 1.5 = 1.5, not 3 hrs

Change the speed to 20 mph( 1/2 the speed) to double the hours.

20 mph = 6 hours(120/20)

40 mph = 3 hrs(120/40)

6 - 3 = 3 hours difference
6 0
4 years ago
Find the coordinates of point) along the directed segment AB that partitions it so that the ratio of AP to PB is 1:2. NO LINKS O
aleksandr82 [10.1K]

Answer: (1, 3)

Step-by-step explanation:

There are two ways to solve this problem, 1 without the pythagorean theorem, and 1 with it.  For the sake of simplicity, I will solve it without the pythagorean theorem.

As is visually evident from the graph, the line segment spans 6 units horizontally, and 3 units vertically.  Because the ratio between AP and PB is 1:2, simply divide both the domain and range by 3, to get 2 horizontally, and 1 vertically.  

Then, simply go to point A and respectively add and subtract the horizontal and vertical values to get point A(-1, 4) --> P(1,3)

Hope it helps, and let me know if you want me to solve it an alternate way or go more in depth as to the way it is know.

3 0
3 years ago
Read 2 more answers
How many x intercepts appear on the graph of this polynomial function?
MArishka [77]
f (x) = x ^ 4-x ^ 3 + x ^ 2-x 
 For this case what we can do is graph the function and see the behavior of it.
 We have then that the function grows upwards (see attached image)
 It has two cutting points with the x axis in:
 x = 0
 x = 1
 Therefore, the other roots of the polynomial are imaginary.
 Answer:
 2 x intercepts appear on the graph of this polynomial function

8 0
4 years ago
Which function is represented by the graph?
jeka57 [31]
I believe it is B because the y intersect is +6 and they slope is going down so it is -2
3 0
3 years ago
Read 2 more answers
Find the values of the six trigonometric functions of theta with the given constraint.
Evgesh-ka [11]

Answer:

The six trig ratios at 3pi/2 are:

sin(3pi/2)=-1

cos(3pi/2)=0

tan(3pi/2) (undefined)

csc(3pi/2)=-1

sec(3pi/2) (undefined)

cot(3pi/2)=0

Step-by-step explanation:

If tangent is undefined then cosine would have to be 0 given that tangent is the ratio of sine to cosine.

cosine is 0 at pi/2 and 3pi/2 in the first rotation of the unit circle.

3pi/2 satisfies the given constraint.

The six trig ratios are therefore:

sin(3pi/2)=-1

cos(3pi/2)=0

tan(3pi/2)=-1/0 (undefined)

Reciprocal values:

csc(3pi/2)=-1

sec(3pi/2) undefined since cos(3pi/2)=0

cot(3pi/2)=0/-1=0

4 0
3 years ago
Read 2 more answers
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