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3 years ago

A coin is tossed 450 times and lands on heads 268 times.

Mathematics

2 answers:

alexandr1967 [171]3 years ago

7 0

Answer:

The answer is 182 times.

Step-by-step explanation:

If a coin is tossed 450 times & has already landed on heads 268 times then the remaining times the possibility it will land on tails is 182.

450-268=182

Lerok [7]3 years ago

4 0

Answer:

The answer is 40.44%

Step-by-step explanation:

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The midpoint of line AC is

Maurinko [17]

Step-by-step explanation:

Hey there!

Given;

Midpoint is (-1,3) and one endppint is; A(4,-1).

Let the coordinates of C be (x,y).

Use the midpoint formula.

$(x,y) = ( \frac{x1 + x2}{2} ,\frac{y1 + y2}{2} )$

Put all values.

$( - 1,3) = (\frac{4 + x}{2} ,\frac{ - 1 + y}{2} )$

Since, they are equal, equating with their corresponding elements we get,

$- 1 = \frac{4 + x}{2}$

Simplify it.

$- 2 = 4 + x$

$x = - 6$

Again,

$3 = \frac{ - 1 + y}{2}$

Simplify it.

$6 = - 1 + y$

$y = 7$

Therefore the another endpoint is C(-6,7).

Hope it helps...

5 0

3 years ago

A four-person committee is chosen from a group of eight boys and six girls. If students are chosen at random, what is the probab

Lapatulllka [165]

Answer: 0.07

Step-by-step explanation:

in the group, we can have only 4 persons.

we have 8 boys, and 6 girls.

We want to find the probability that in the comite we have only boys.

Ok, for the first selection, the probability of selecting a boy is equal to the number of boys divided the total number of the group ( 8 + 6 = 14) this is

p1 = 8/14.

For the second selection we do the same, but we already slected a boy, so now the number of boys is 7, and the total number of posibilities is 13.

p2 = 7/13.

for the third selection we do the same, in this case the probability is

p3 = 6/12

for the fourth selection the probability will be:

p4 = 5/11

The joint probability, of all the events happening at the same time, is equal to the product of the singular probabilities:

P = p1*p2*p3*p4 = (8/14)*(7/13)*(6/12)*(5/11) = 0.07

4 0

3 years ago

Read 2 more answers

Rectangle A has a side length of 6 cm and 3.5 cm. The side length of rectangle B are proportional to the side lengths of a recta

mr Goodwill [35]

Answer:

A) 3cm and 1.75cm

Step-by-step explanation:

To determine whether or not these are proportional, take the two side lengths that are given and create a ratio. 6cm:3.5cm. I suggest writing this in fraction form to better see the equivalency. If you divide both 6cm and 3.5 cm by 2, you create an equivalent ratio of 3 cm:1.75cm. This is answer A. There is another correct answer too! If you take 6cm:3.5cm and multiple both by 1.5, it will create an equivalent ratio of 9cm:5.25 cm (answer choice E), just in a different order.

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3 years ago

What is the inequality that represents the range of the function g(x)=-3/4x^2 when the domain is restricted to -4

enyata [817]

Answer:

Step-by-step explanation:

to show the general direction of the graph, we should find the end points and one in the middle, lets see what happens why x is -4, 0, and 4. when x=-4, it is 16*-3/4 (which is negetive), when x is 0, y is 0, and when x is 4, the same this happens in the first number. If these points are plotted, it is shown as a parabola pointing downwards. The max is will be is 0. because before 0, the numbers are negetive in the y axis, and after they are negetive in the y axis, and it tops out at y=0 when x=0. Therefore Y is smaller than or equal to 0, or D.

4 0

3 years ago

Question is in the picture

ale4655 [162]

Reflection over the y-axis, translation 2 units down

3 0

3 years ago

Read 2 more answers