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4 years ago

A coin is tossed three times. (a) what is the probability that the coin will land tails at least twice

Mathematics

2 answers:

lilavasa [31]4 years ago

5 0

Sample Space = {HHH, HHT, HTH, HTT, TTT, THH, TTH, THT}
So required probability = 4/8 = 1/2

raketka [301]4 years ago

3 0

$\frac{1}{2} \times \frac{1}{2} = 0.25$
that's the probability

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Can someone solve this for me with their explanation please?

Lana71 [14]

First you want to subtract 36

so it looks like this $\sqrt[4] {(4x+164)^3}=64$

Then you want to cancel out the square root 4 by raising that to the 4th power (you must do this to both sides)

${(4x+164)^3}=64^4$ which is equal to ${(4x+164)^3}=16777216$

Then you take the cube root to both sides [tex]\sqrt[3]{(4x+164)^3}=\sqrt[3]{16777216}[tex]

Then you end up with the equation 4x+164=256

Then subtract 164 to both sides

4x=92

then divide 92 by 4

Then you get x=23

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Step-by-step explanation:

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3 years ago

A circle has an area of 324π cm2. What is the radius? a. 18 cm c. 18π cm b. 36π cm d. 36 cm

mars1129 [50]

Answer:

a. 18 cm

Step-by-step explanation:

We are given that a circle has an area of 324π cm2. We are required to determine its radius. The formula for the area of a circle with radius r units is;

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We plug in the area given and solve for r;

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ss7ja [257]

Answer:

Step-by-step explanation:

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