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3 years ago

What the the probability of getting 2 heads when two coins are flipped 5 times?

Mathematics

2 answers:

baherus [9]3 years ago

7 0

Answer: 18

Step-by-step explanation:

The probability of this event is 424=1/4. Then the probability of 5th toss is head is 1/2. Hence, in the end the answer is 14⋅12=18.

Kitty [74]3 years ago

7 0

Answer:

50%

Step-by-step explanation:

O O

^ ^ X5

(H) (T) (H) (T)

The probability will always be 50% due to their only being 2 sides.

It will only be, IT WILL land on heads, or its NOT.

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Use the remainder theorem to find P(-3) for P(x)= -2x^4-4x^3+6x^2-7

Sunny_sXe [5.5K]

Answer:

18/7

Step-by-step explanatiP(x)= -2x^4-4x^3+6x^2-7

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3 years ago

How much linoleum is needed to cover a rectangular floor that measures 10 feet by 12 1/2 feet?

OverLord2011 [107]

125 feet of linoleum is needed

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3 years ago

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3 years ago

Plot the value(s) on the number line where this function is equal to zero: fx) = (x + 5)(x - 1).

Anestetic [448]

Answer:

x = - 5, x = 1

Step-by-step explanation:

let f(x) = 0 , that is

(x + 5)(x - 1) = 0

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 1 = 0 ⇒ x = 1

Plot the points - 5 and 1 on the number line

8 0

2 years ago

Can someone please help me answer this?

Setler79 [48]

Answer:

Step-by-step explanation:

If you don't understand some steps, comment it for me please.

1. Find diagonal.

d = 2r

d = 2(9)

d = 18

2. Find length of square.

each length of square = x

$x : 18 = 1 : \sqrt{2}$

$\frac{x}{18} = \frac{1}{\sqrt{2} }$

$\sqrt{2}x = 18$

$x = \frac{18}{\sqrt{2} } = 9\sqrt{2}$

3. Find area of circle and square.

Area for circle

$A = \pi r^2$

$A = \pi (9)^2$

$A = 81\pi = 254.4690...$

Area for square

$A = (length)^2$

$A = (9\sqrt{2})^2$

$A = 162$

4. Subtract area of circle to area of square.

254.4690... - 162 = 92.4690...

5. Find the shaded region.

92.4690... / 4 = 23.1172...

Rounded to the nearest hundredth = 23.12

7 0

3 years ago