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Lisa [10]
2 years ago
13

Please help! (listing BRAINLIST and giving points) ​:D​

Mathematics
1 answer:
Fudgin [204]2 years ago
5 0
X = 56+66 (sum of interior opposite angles)
X = 122 degree
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It is desired to draw blood 3 cm up a capillary tube. Assuming a contact angle of 0 degrees and a blood density of 1060 kg/m3, w
JulijaS [17]

Answer:

If we assume a temperature of 20ºc and the blood interfacial surface tension is similar to water interfacial surface tension, the diameter of the capillary tube should be 0.933mm.

Step-by-step explanation:

The Jurin law describes the height a fluid can reach in a capillary tube. This law can be written as:

H=\displaystyle\frac{2\gamma cos(\theta)}{\rho gr}

where γ is the interfacial surface tension, θ is the contact angle with the fluid, ρ is the fluid density, g is the gravity acceleration and r is the tube radius.

If we assume that the interfacial surface tension of blood and water are almost the same, γ=0,0728 N/m at 20ºc. Therefore the diameter of the tube will be:

D=2r=\displaystyle\frac{4\gamma cos(\theta)}{\rho gH}=0.933\cdot 10^{-3}m

4 0
3 years ago
Solve the system by substitution.<br> y = 4x<br> y = 8x - 36
blagie [28]

Answer:

(9,36)

Step-by-step explanation:

Substitute the 4x for the y in second equation.

Basically setting them equal to each other because the both have 'y='

4x = 8x - 36

-4x  = -36 (subtract 8x from both sides)

x = 9         (divide by -4, both sides)

y = 4(9)     (Substitute the x value into first equation)

y = 36

8 0
3 years ago
What number is most likely going to be a number less than 7 when rolling a dice
stiv31 [10]

Answer:

Each is equally likely . The probability of rolling less than 7 is equal to the probability of rolling 1 or 2 or 3 or 4 or 5 or 6. That is 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6 = 6/6.

3 0
3 years ago
The graph shows two lines A and B:
fiasKO [112]
2. 4 is the solution to line a but NOT for line b
8 0
3 years ago
Read 2 more answers
Someone help me with c pls and thx :)
Anastasy [175]

Step-by-step explanation:

180 - (value of x) = answer

m° equal to c°

5 0
3 years ago
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