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hodyreva [135]
3 years ago
13

The least common multiple of 20, 24, and 45 is _____. A. 30 B. 180 C. 360 D. 21,600

Mathematics
1 answer:
Alexus [3.1K]3 years ago
8 0

Answer:c because the least common multiple is 360

Step-by-step explanation:

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What is the discriminant of 3x^2+6x=2
IgorC [24]
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7 0
3 years ago
HELP TUTOR…<br> ss<br> z<br> z<br> z<br> z
kondor19780726 [428]

Answer:

A)σ = 15.37 miles per hour

B) σ = 55.10 miles per hour

C) 39.73 miles per hour

Step-by-step explanation:

Formula for standard deviation is;

σ = √(Σ(x - μ)²)/(n - 1)

A) For large wild cats;

μ = Σx/n = (70 + 40 + 30 + 40 + 35 + 35 + 35 + 35 + 10)/9 = 36.67

σ = √((70 - 36.67)² + (40 - 36.67)² + (30 - 36.67)² + (40 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (10 - 36.67)²)/(9 - 1)

σ = √236.1139

σ = 15.37

B) For various birds;

μ = Σx/n = (218 + 106 + 97 + 56 + 66 + 39 + 55 + 32 + 54 + 20 + 25 + 25)/12

μ = 66.0833

σ = √((218 - 66.0833)² + (106 - 66.0833)² + (97 - 66.0833)² + (56 - 66.0833)² + (66 - 66.0833)² + (39 - 66.0833)² + (55 - 66.0833)² + (32 - 66.0833)² + (54 - 66.0833)² + (20 - 66.0833)² + (25 - 66.0833)² + (25 - 66.0833)²)/(12 - 1)

σ = √3035.72

σ = 55.10

C) difference in standard deviations = 55.10 - 15.37 = 39.73 miles per hour

8 0
3 years ago
What is the value of x?<br><br> Enter your answer, as a decimal, in the box.<br><br> ? cm
Dima020 [189]

Answer:

The value is 50.6cm

Step-by-step explanation:

In order to find this , set up a proportion. Use the smaller part of the triangle on top, and the corresponding part of the larger on bottom.

32.2/46.2 = x/72.6

Now cross multiply to solve

72.6*32.2 = 46.2*x

2337.72 = 46.2x

50.6 = x

7 0
3 years ago
PLEASE HELP ME ASAP!!​
marshall27 [118]

Answer:

(0.5, 0.5)

Step-by-step explanation:

Use the midpoint formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

The points are:

  • A(-2, 4)
  • C(3, -3)

(\frac{-2+3}{2},\frac{4-3}{2})\\\\(\frac{1}{2},\frac{1}{2})

Therefore, the midpoint between A and C is located at (0.5, 0.5).

6 0
2 years ago
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gogolik [260]

Answer:

I think the answer is 3x

Step-by-step explanation:

If i am wrong please correct me

4 0
2 years ago
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