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never [62]
2 years ago
10

If a coin is flipped three times what is the probability of getting heads at least twice. AND PLS HELP I NEED ANSWERS FOR A 21 P

ROBLEM MATH TEST I Am WELLING GIVE HECK OF POINTS FOR THIS And PLS GIVE RIGHT answers I been HAVING ALL F’s FOR 3 SERMERTS PLS HELP ME OUT GUYS and I keep leaving questions
Mathematics
2 answers:
PSYCHO15rus [73]2 years ago
5 0

Answer:2/3

Step-by-step explanation: the chances are two outa three chances if this dont help at least i tried

Alex787 [66]2 years ago
4 0

Answer:

2/3

Step-by-step explanation:

Atleast 2 Heads in 3 Coin Tosses

0.5 is the probability of getting 2 Heads in 3 tosses.

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larisa86 [58]

Answer:

The length of time it takes for Ryan to use all the plant food.

Step-by-step explanation:

I think

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2 years ago
Graph the line that represents this equation:<br> y = -5.1 +2
Mrac [35]
That's for the equation I got from the picture

4 0
3 years ago
Tracy recieves payments of $X at the end of each year for n years. The present value of her annuity is 493. Gary receives paymen
vladimir1956 [14]

Answer:

v = 1/(1+i)

PV(T) = x(v + v^2 + ... + v^n) = x(1 - v^n)/i = 493

PV(G) = 3x[v + v^2 + ... + v^(2n)] = 3x[1 - v^(2n)]/i = 2748

PV(G)/PV(T) = 2748/493

{3x[1 - v^(2n)]/i}/{x(1 - v^n)/i} = 2748/493

3[1-v^(2n)]/(1-v^n) = 2748/493

Since v^(2n) = (v^n)^2 then 1 - v^(2n) = (1 - v^n)(1 + v^n)

3(1 + v^n) = 2748/493

1 + v^n = 2748/1479

v^n = 1269/1479 ~ 0.858

Step-by-step explanation:

6 0
3 years ago
Question
creativ13 [48]

The cost to cover the cirular region with mud is about $2940

<h3>How to calculate area?</h3>

The circumference of the circular region is about 157 feet. Hence:

circumference = 2π * radius

157 = 2π * radius

Radius = 78.5 / π

The area is given as:

Area = π * radius² = π(78.5 / π)² = 1961.5 ft²

Cost = $1.5 * 1961.5 = $2940

The cost to cover the cirular region with mud is about $2940

Find out more on area at: brainly.com/question/25292087

5 0
2 years ago
Z=x/y -3r make x the subject
satela [25.4K]
Z = x-y(3r)/y
z = x-y * 3r/y
Final answer: x = yz + 3yr
6 0
2 years ago
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