Answer:
a. 1.6×10^9
Step-by-step explanation:
The blood volume flowing per second is the same in each vessel, so we have ...
![r_1^2v_1=n\cdot r_2^2v_2\\\\1^2\cdot 40=n\cdot (5\times 10^{-4})^2\cdot 0.1\\\\\dfrac{40}{2.5\times 10^{-8}}=n=1.6\times 10^9](https://tex.z-dn.net/?f=r_1%5E2v_1%3Dn%5Ccdot%20r_2%5E2v_2%5C%5C%5C%5C1%5E2%5Ccdot%2040%3Dn%5Ccdot%20%285%5Ctimes%2010%5E%7B-4%7D%29%5E2%5Ccdot%200.1%5C%5C%5C%5C%5Cdfrac%7B40%7D%7B2.5%5Ctimes%2010%5E%7B-8%7D%7D%3Dn%3D1.6%5Ctimes%2010%5E9)
There are about 1.6×10^9 capillaries.
Answer:
105 ft.
Step-by-step explanation:
5 x 12 = 60
So 5 feet is 60 inches.
60 + 3 = 63
That makes the ridge 63 inches long.
When the lion went up the ridge, it traveled 63 inches.
When the lion went back down the ridge, it traveled another 63 inches, totaling 126 inches.
The lion did this 10 times.
126 x 10 = 1260
Divide 1260 by 12 to find the measurement in feet.
1260 ÷ 12 = 105
AE and EC are congruent because it's given that E is the midpoint of AC. However, DE and EB cannot be congruent because it does not state that point E is the midpoint of DB.
You cannot assume that all the triangles DEA, AEB, BEC, and CED are all congruent just from being given that E is the midpoint of AC. You would need to be given other information such as "Quadrilateral ABCD is a parallelogram. "
I have no idea, but the only thing that comes to mind, is the fact, 80+20=100 and you need to find the value of 70 which can be taken out of the 100 .. but simply the 20% has a variable. Find a way to use that.
Let’s see! Substituting 3 for x and -1 for y:
(3 + 1)^2 + (-1 - 1)^2 = 16
4^2 + (-2)^2 = 16
16 + 4 = 16
20 = 16
20 is clearly not equal to 16, so we know the point (3, -1) can’t lie on that circle.