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3 years ago

Work out the length X.

Mathematics

2 answers:

ohaa [14]3 years ago

8 0

Answer:

16.34

Step-by-step explanation:

Is pythagoreons Theron

256 + 11.25 = c squared

267.25 = c squared

16.34 equals approximately c

Iteru [2.4K]3 years ago

4 0

Answer:

17.67 cm

Step-by-step explanation:

$\sqrt{a^2+b^2}$ = x

16^2 = 256

7.5^2 = 56.25

Add.

256 + 56.25 = 312.25

$\sqrt{312.25}= 17.67$

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You roll 4 fair, distinguishable, six-sided dice. What is the probability of rolling :______

Vikentia [17]

Answer:

a)0.25

b)0.375

Step-by-step explanation:

Possible outcomes when dice are rolled : 1 ,2 ,3,4,5 ,6

Even= 2,4,6

Odd = 1 ,3 , 5

Probability of getting even = $\frac{3}{6}=\frac{1}{2}$

Probability of getting odd = $\frac{3}{6}=\frac{1}{2}$

4 dices are rolled together

a)P(3 even and 1 odd numbers)

P(3 even and 1 odd numbers)= $^4C_3 (\frac{1}{2})^3 (\frac{1}{2})^1$

P(3 even and 1 odd numbers)= $\frac{4!}{3!1!} (\frac{1}{2})^3 (\frac{1}{2})^1 =0.25$

b)P(2 even and 2 odd numbers)

P(2 even and 2 odd numbers)= $^4C_2 (\frac{1}{2})^2 (\frac{1}{2})^2$

P(3 even and 1 odd numbers)= $\frac{4!}{2!2!} (\frac{1}{2})^2 (\frac{1}{2})^2$ =0.375

6 0

3 years ago

How to simplify this 5x^2 -3 (x + 2) - 2x

lukranit [14]

Answer: 5x^2 - 5x - 6

work:
5x^2 -3(x+2) - 2x
distribute
5x^2 -3x - 6 - 2x
combine like terms
5x^2 -5x - 6

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NemiM [27]

Part e because I did it and got it right on the test txt me if u need help

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Gnesinka [82]

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Step-by-step explanation:

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Mkey [24]

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3 years ago