3 years ago

What is the LCD of 6/7 , 3/5 and 1/4 ? =^= A. 100 B. 140

1 answer:

3 0

It 100 that what i think

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Vilka [71]

Cos(theta) = adjacent/hypotenuse

cos(theta) = 6/20
cos(theta) = 0.3

Use the inverse cos or cos^-1 on your calculator to get the angle

theta = 72.5

6 0

2 years ago

Paraphin [41]

Answer:

Step-by-step explanation:

it's 8+8+8+7+9 so it's gonna be 40

3 0

2 years ago

Anni [7]

Answer:

think about it right now its easy or use a calculator

Step-by-step explanation:

amazing

7 0

2 years ago

Vika [28.1K]

the right answer is the second one B

3 0

2 years ago

mrs_skeptik [129]

Answer: 3424.28

Step-by-step explanation:

Given data : 378, 361, 350, 375, 200, 391, 375, 368, 321

Number of data values = 9

Mean : $\overline{x}=\dfrac{\sum^n_{i=1} x_i}{n}$

$\\\\=\dfrac{378+361+350+375+200+391+375+368+321}{9}\\\\=\dfrac{3119}{9}\approx346.56$

Variance = $\dfrac{\sum^n_{i=1} (x_i-\overline{x})^2}{n-1}$

$\sum^n_{i=1} (x_i-\overline{x})^2 = (31.44)^2+(14.44)^2+(3.44)^2+(28.44)^2+(-146.56)^2+(44.44)^2+(28.44)^2+(21.44)^2+(-25.56)^2\\\\=27394.2224$

Variance = $\dfrac{27394.2224}{8}=3424.2775\approx3424.28$

4 0

2 years ago