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Shtirlitz [24]
3 years ago
11

I don’t understand this can someone explain this to me?

Mathematics
1 answer:
olga2289 [7]3 years ago
7 0

Answer:

16x 144

Step-by-step explanation:

4x times 4x then 12 times 12 than that is you answer beacons you can ad 12 and 4x because  the 12 has no x

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(1, 5) (3 , 1) <br> Please Help
hammer [34]

Answer:

(4, 6)?

Step-by-step explanation:

Im not sure you didn't give much info

6 0
2 years ago
(0.00032)(5.2x10^6)/6.4x10^5
Elena-2011 [213]

Answer:

26000000

Step-by-step explanation:

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7 0
3 years ago
How do I do question 9 &amp; 11? Please help thank you!
Novay_Z [31]
<h2>9.</h2><h3>Given</h3>
  • sphere with radius 15 cm
<h3>Find</h3>
  • linear approximation to the volume when the radius increases 0.4 cm
<h3>Solution</h3>

The equation for volume of a sphere is

... V = (4/3)π·r³

Differentiating gives

... dV = 4π·r²·dr

Filling in the given numbers gives

... change in volume ≈ 4π·(15 cm)²·(0.4 cm)

... = 360π cm³ ≈ 1130.97 cm³ . . . . . . volume of layer 4mm thick

<h2>11.</h2><h3>Given</h3>
  • an x by x by 2x cuboid with surface area 129.6 cm²
  • rate of change of x is 0.01 cm/s
<h3>Find</h3>
  • rate of change of volume
<h3>Solution</h3>

The area is that of two cubes of dimension x joined together. The area of each such cube is 6x², but the two joined faces don't count in the external surface area. Thus the area of the cuboid is 10x².

The volume of the cuboid is that of two cubes joined, so is 2x³. Then the rate of change of volume is

... dV/dt = (d/dt)(2x³) = 6x²·dx/dt

We know x² = A/10, where A is the area of the cuboid, so the rate of change of volume is ...

... dV/dt = (6/10)A·dx/dt = 0.6·(129.6 cm²)(0.01 cm/s)

... dV/dt = 0.7776 cm³/s

5 0
3 years ago
3+(-2) is_units from 3, in ___ the<br> direction.
WARRIOR [948]
2, left direction (or negative if that’s an option)
8 0
2 years ago
Read 2 more answers
A car is traveling on a highway. The distance (in miles) from its destination and the time (in hours) is given by the equation d
blondinia [14]

Answer:

d–intercept is simply the value of t when d equals zero. Which this case is when he reaches it his destination.

3 0
3 years ago
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