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2 years ago

A coin is flipped 25 times, and we would like to know the probability that 15 or more of those flips are heads side up.

Mathematics

1 answer:

Helen [10]2 years ago

7 0

Answer:

Yes, the geometric distribution is appropriate.

Step-by-step explanation:

sorry if im wrong

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40 points, please help with all of them

Kitty [74]

Answer:

$\large\boxed{Q1.\ \text{2 times greater}}\\\\\boxed{Q2.\ J. 3}\\\\\boxed{Q3.\ B. -\dfrac{4}{5}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Q1.

We have the equation of a line p in the standard form

$4x-3y=7$

Convert to the slope-intercept form:

$4x-3y=7$ subtract 3x from both sides

$-3y=-4x+7$ divide both sides by (-3)

$y=\dfrac{4}{3}x-\dfrac{7}{3}$

The slope $m_1=\dfrac{4}{3}$

From the table we have the points (4, 3) and (7, 5). Calculate the slope of line q:

$m_2=\dfrac{5-3}{7-4}=\dfrac{2}{3}$

Divide the slope of p by the slope of q:

$\dfrac{4}{3}:\dfrac{2}{3}=\dfrac{4}{3}\cdot\dfrac{3}{2}=2$

Q2.

Parallel line have the same slope. Therefore, if we have the equation of the line in the slope-intercept form, then we have the slope:

$y=3x+2\to m=3$

Q3.

Parallel line have the same slope.

Calculate the slope from given points (-11, 5) and (-6, 1):

$y=\dfrac{1-5}{-6-(-11)}=\dfrac{-4}{-6+11}=\dfrac{-4}{5}=-\dfrac{4}{5}$

6 0

2 years ago

Circle O has a circumference of approximately 250π ft. Circle O with diameter d is shown. What is the approximate length of the

Vinil7 [7]

Answer:

250 ft

Step-by-step explanation:

circumference of circle 'C' is defined as

C = 2πr

250π = 2πr

r = 250π/2π

r= 125

d = 2r = 2×125 = 250 .

diameter of the given circle is 250 ft

4 0

2 years ago

Read 2 more answers

PLEASE HELP ME THANK YOU

Anna [14]

Answer:

m = -6/5

Step-by-step explanation:

The points present are (-2,2) and (3,-4).

m = -4 - 2 / 3 - (-2)

m = -4 - 2 / 3 + 2

m = -6/5

7 0

2 years ago

Mikey had 104 nickels and 88 dimes she wants to divide the coins into group of each group will have the same number of nickels i

coldgirl [10]

Answer:

Step-by-step explanation:

8 can go into 88 and it can also go into 104 too and 8 is the largest number so the answer is 8

3 0

2 years ago

What is the exact volume of the cylinder?

Cloud [144]

The Answer is A. 5070π in3

3 0

3 years ago

Read 2 more answers