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3 years ago

Is the point (−7,1) a solution to the inequality

Mathematics

1 answer:

andrew-mc [135]3 years ago

8 0

Question 1 true not false

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What is the probability of getting tails 4 times in a row while flipping a coin?

skelet666 [1.2K]

Answer:

$P=0.0625$

Step-by-step explanation:

The probability of getting one tails is a half.

The probability of getting another tails given you had a tails is:

$\frac{1}{2}*\frac{1}{2}=(\frac{1}{2})^2=\frac{1}{4}$

The probability of getting n tails in general is given by:

$(\frac{1}{2})^n = \frac{1}{2^n}$

So, when we have four tails - our value for n is four.

$(\frac{1}{2})^4=\frac{1}{2^4}=\frac{1}{16}=0.0625$

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3 years ago

Pleaseeeee helpppppp <333

alexandr1967 [171]

Step-by-step explanation:

64+72+4x+20=180(Sum of angles of a triangle )
156+4x=180
4x=180-156
4x=24
X=24/4
X=6

Therefore The value of X is 6 degree.

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2 years ago

Solve. −6 1/4x=−3 1/8 What is the solution to the equation? Enter your answer as a simplified fraction in the box.

tresset_1 [31]

X would be equal to -0.5

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2 years ago

Which number(s) are 3 units from zero on a number line? 6 3 1\3 -3

MrRissso [65]

3 & -3 are 3 units from zero

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2 years ago

Textbooks are exempted from PST in Ontario. If the total cost of a book

Andrei [34K]

Answer:

4.24

Step-by-step explanation:

Total price = price of the book + 5% of the price of the book

T = total price P = price of the book G = GST

T = P + G

and

G = 5% of P = 0.05P

therefore

T = P + 5%P = 1P + 0,05P = 1.05P

P = T/1.05 = 89/1.05 ≅ 84.76 (it is 84.7619047619)

G = 89 - 84.76 = 4.24

8 0

3 years ago