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Feliz [49]
3 years ago
5

Round off the following numbers to two decimal places 1.2.1) 0,77677 1.2.2) 34,2784682

Mathematics
1 answer:
andre [41]3 years ago
8 0
1) 0.78
2) 34.28
This is because the number in the 3rd decimal place for both numbers is 5 or above so it is rounded up rather than down.
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Approximate the change in the volume of a sphere when its radius changes from r = 30 ft to r=10.1 ft [v(r)=4/3Ï€r^3]. When r cha
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Answer: ∆V for r = 10.1 to 10ft

∆V = 40πft^3 = 125.7ft^3

Approximate the change in the volume of a sphere When r changes from 10 ft to 10.1 ft, ΔV=_________

[v(r)=4/3Ï€r^3].

Step-by-step explanation:

Volume of a sphere is given by;

V = 4/3πr^3

Where r is the radius.

Change in Volume with respect to change in radius of a sphere is given by;

dV/dr = 4πr^2

V'(r) = 4πr^2

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V'(10.1) - V'(10) ~= 0.1(400π) = 40π

Therefore change in Volume from r = 10 to 10.1 is

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Of by direct substitution

∆V = 4/3π(R^3 - r^3)

Where R = 10.1ft and r = 10ft

∆V = 4/3π(10.1^3 - 10^3)

∆V = 40.4π ~= 40πft^3

And for R = 30ft to r = 10.1ft

∆V = 4/3π(30^3 - 10.1^3)

∆V = 34626.3πft^3

3 0
3 years ago
Write an equation in​ slope-intercept form that would have infinitely many solutions in a system of equations with 5x-2y=8
Snowcat [4.5K]

Answer:

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7 0
2 years ago
1. Consistent <br> 2. Equivalent <br> 3. Inconsistent
omeli [17]

Answer:

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3 years ago
Where to put this on the number line? ​
lawyer [7]

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8 0
2 years ago
Read 2 more answers
P2q2+pq–q3–p3 =<br><br> for p=0.5 and q = −0.5<br><br><br> Please help!!!
Aleksandr [31]
In order to answer the question, we simply substitute the value of p and q to the given expression and solve. We do as follows:

<span>P^2q^2+pq–q^3–p^3 
</span>0.5^2(-0.5)^2+0.5(-0.5)–(-0.5)^3–(0.5)^3
-3/16 or -0.1875

Hope this answers the question. Have a nice day. 
5 0
2 years ago
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