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Mariulka [41]
3 years ago
10

Which of these numbers is between

Mathematics
2 answers:
serious [3.7K]3 years ago
7 0
I think the answer is D.11/6
levacccp [35]3 years ago
5 0
I got C. 4/7. If you get a common denominator then multiply the top you 24/42 which is between 1 and 35/42
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0.4(2-0.5) = 0.2(1 + 3)<br> Help me
Lina20 [59]

Answer:

0.6 = 08

Step-by-step explanation:

7 0
3 years ago
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Part a at what speed v should an archerfish spit the water to shoot down an insect floating on the water surface located at a di
loris [4]
3.01 m/s  
This is a simple projectile calculation. What we want is a vertical velocity such that the time the droplet spends going up and going back down to the surface exactly matches the time the droplet takes to travel horizontally 0.800 meters. The time the droplet spends in the air will is:
 V*sqrt(3)/2 ; Vertical velocity.
 (V*sqrt(3)/2)/9.8 ; Time until droplet reaches maximum height
 (V*sqrt(3))/9.8 ; Double that time for droplet to fall back to the surface.
 
 The droplet's horizontal velocity will be:
 V/2.
 
 So the total distance the droplet travels will be:
 d = (V*sqrt(3))/9.8 * V/2
 d = V^2*sqrt(3)/19.6
 
 Let's substitute the desired distance and solve for V
 d = V^2*sqrt(3)/19.6
 0.8 = V^2*sqrt(3)/19.6
 15.68 = V^2*sqrt(3)
 15.68/sqrt(3) = V^2
 15.68/1.732050808 = V^2
 3.008795809 = V 
 So after rounding to 3 significant figures, the archerfish needs to spit the water at a velocity of 3.01 m/s 
 Let's verify that answer.
 Vertical velocity: 3.01 * sin(60) = 3.01 * 0.866025404 = 2.606736465
 Time of flight = 2.606736465 * 2 / 9.8 = 0.531987034 seconds. 
 Horizontal velocity: 3.01 * cos(60) = 3.01 * 0.5 =
8 0
3 years ago
5y + 3 = 4y - 9 what is y?
Elena L [17]

y =  - 12

Step-by-step explanation:

5y - 4y =  - 9 - 3 \\ y =  - 12

6 0
3 years ago
Question 3
MAVERICK [17]

if you find a problem on answer respond me

7 0
3 years ago
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Consider the following piecewise-defined function.
Fittoniya [83]
In order to solve this, we need to select the function that meets our constraints. Since x^2 - 5 occurs when x is less than 3, and the x-value we are given is -4, we use the first function.

f(-4) = (-4)^2 - 5
f(-4) = 16 - 5
f(-4) = 11
7 0
3 years ago
Read 2 more answers
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