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3 years ago

-4x + 40 > -4 Solve quick le,ase

Mathematics

2 answers:

emmasim [6.3K]3 years ago

8 0

Answer:

x>-39

Step-by-step explanation:

-4x/-4=x

-4/-4=1

1-40=-39

timofeeve [1]3 years ago

6 0

Answer: x is greater than 9 x>9

Step-by-step explanation:

You see -4 times 9 equals to -36. And -36+plus 40 equals to -4. The question is asking you to make sure the left side is greater. So, it has to be greater than 9. for example -4 times 8 equals to -32. And -32+40 equals to 8. So your answer is X>9. I hope that helped you.

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Find the volume of a cylindrical container,whose height is 21cm and diameter is 14cm?

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Answer:

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Step-by-step explanation:

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A scientist dropped an object from a height of 200 feet. She recorded the height of the object in 0.5-second intervals. Her data

Reil [10]

The quadratic model is given by:
y = ax2 + bx + c
We evaluate three points to find the values of a, b and c.
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For (0, 200):
200 = a (0) 2 + b (0) + c
c = 200
For (0.5, 195):
195 = a * (0.5) ^ 2 + b * (0.5) +200
195-200 = a * (0.5) ^ 2 + b * (0.5)
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For (1, 185):
185 = a * (1) ^ 2 + b * (1) +200
185-200 = a * (1) ^ 2 + b * (1)
-15 = a + b
Solving the system:
-5 = 0.25a + 0.5b
-15 = a + b
We have the following results:
a = -10
b = -5
Substituting:
y = -10x ^ 2 - 5x + 200
For x = 3 we have:
y = -10 (3) ^ 2 - 5 (3) + 200
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Answer:
the height at 3 seconds is:
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3 years ago

4 glasses hold 32.2 oz in all about how much does each glass hold

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3 years ago

Convert (-6, -6) from Cartesian coordinates to polar coordinates. Round the length to the nearest 0.01 Express the

Neko [114]

9514 1404 393

Answer:

(8.49; 225°)

Step-by-step explanation:

The angle is a 3rd-quadrant angle. The reference angle will be ...

arctan(-6/-6) = 45°

In the 3rd quadrant, the angle is 45° +180° = 225°.

The magnitude of the vector to the point is its distance from the origin:

√((-6)² +(-6)²) = √(6²·2) = 6√2 ≈ 8.4859 ≈ 8.49

The polar coordinates can be written as (8.49; 225°).

_____

<em>Additional comment</em>

My preferred form for the polar coordinates is 8.49∠225°. Most authors use some sort of notation with parentheses. If parentheses are used, I prefer a semicolon between the coordinate values so they don't get confused with an (x, y) ordered pair that uses a comma. You need to use the coordinate format that is consistent with your curriculum materials.

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3 years ago