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Margarita [4]
2 years ago
7

What was calvin's score for the three games

Mathematics
1 answer:
nataly862011 [7]2 years ago
8 0

Answer:

I think the answer is -4 .

Step-by-step explanation:

Let me know if it's right or wrong.

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PLEASE ANSWER
Sphinxa [80]

Answer:

A

Step-by-step explanation:

8 times 1.75 is 14.

4 0
2 years ago
Solve on the interval [0,2pi):<br>3 sec x-1 = 2​
Lelechka [254]

Answer:

0

Step-by-step explanation:

3 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
A 4. What is the measurement of this angle?<br> • 130<br> • 120<br> • 140<br> • 100
Whitepunk [10]

Answer:

120 deg

Step-by-step explanation:

I put an image of 120 deg down below.

Try comparing those two

6 0
1 year ago
Read 2 more answers
À and have the same direction. ā has a magnitude of 8, and b has a magnitude of 5. What must be true about a and b?
Elena-2011 [213]

Answer: B, the are parallel but not equal. They are parallel line because they move in the same direction and they are not equal because they have different magnitude.

6 0
3 years ago
Read 2 more answers
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