Answer: First I suggest that you write out the all the proportions which govern the 3 right triangles involved.
Once you do that you will find this one:
PQ/PS =PR/PQ
PR=PS+SR
Substitution will give you this quadratic:PQ2=PS2+PS*SR
144=PS2+7PS which has only one solution which make sense, namely 9
Then QS=sqrt(144-81)
Step-by-step explanation:
Answer:
The answer to the question is;
the Drawing's scale factor is 5:36.
Step-by-step explanation:
To solve the question, we note that
1 yard = 3 feet and 1 feet = 12 inches
Therefore 1 yard = 
Therefore Where the scale of the drawing is 5 inches = 1 yard, we have
the scale of the drawing is 5 inches = 36 inches
5 inches is equivalent to 36 inches in real life
That is the scale is 5 is to 36 which is 5:36.
Answer:
cm.
Step-by-step explanation:
We have been given that the average human body cell is about
cm in diameter. The diameter of a plant cell is
cm.
To find the combined diameter of the body cell and plant cell, we will add both diameters.
First of all let us convert our given diameters in standard notation.




Let us convert our answer in scientific notation.

Therefore, the combined diameter of the body cell and plant cell is
cm.
Draw a diameter through the center of the circle. Any radius of this circle is 1/2 the length of the diameter. Thus, if we divide the diameter into two equal parts, we have two lengths that form the ratio 2:1, where 2 represents the diameter and 1 the radius.
C. not all birds fly.
When using _:_, you are contrasting two things so, you are putting a argument to go against the other side.
Not all birds can fly is going against All birds can fly.
Hope this helps. :)