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galben [10]
3 years ago
12

An inequality is shown below.

Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0
You need to break this up into 3x+9≥27 to get x≥9 and 3x+9≤-36 to get x≤-15.
The correct answer would be a
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How many cubic meters of material are there in a conical pile of dirt that has radius 9 meters and height 6 meters 6 meters​? Us
alisha [4.7K]
To find the volume of a cone, you use the formula \pi  r^{2}  \frac{h}{3}.
Radius squared would be 36 in our case and 36 times 3.14 is 113.04. 6 thirds is  also two, so multiply that by two and you would get 113.04 x 2 = 226.08. So, your answer would be 226.08 cubic meters of dirt.
7 0
3 years ago
13. What is the highest number of degrees that an angle can have?<br> 180<br> 360<br> 90<br> 270
kykrilka [37]

Answer:

360

Step-by-step explanation: A full angle is 360. 90*4=360.

8 0
2 years ago
What is (x – 3)(2x + 1)
umka21 [38]

Answer:

(x – 3)(2x + 1)

Expand the terms

We get

2x² + x - 6x - 3

Final answer

2x² - 5x - 3

Hope this helps you.

3 0
3 years ago
Given the formula, Sn=a 1-r^n/1-r, what is the sum of the first nine terms of the geometric series: 324, -108, 36, -12...
vlada-n [284]

Answer:

243.01.

Step-by-step explanation:

The first term (a) = 324.

The common ratio (r) = -108/324 = -1/3.

So sum of 9 terms is:

S(9) = 324 * (1 - (-1/3)^9) / ( 1 - (-1/3)

= 324 ( 1 - (-0.00005076)) / 4/3

= 324 * 1.00005076 / 1.33333

= 243.012.

3 0
3 years ago
A swim coach randomly selects 3 swimmers from a team of 8 to swim in a heat.
Maru [420]

Answer:

37.5, i think

Step-by-step explanation:

8 0
3 years ago
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