Is it possible for an event to have a probability of 1? Explain.

Answers

Answer 1

Answer: An event that is certain to happen has a probability of 1(So yes an event can have a probability of 1).
An event that cannot possibly happen has a probability of zero. (examples below)
--If it is Thursday, the probability that tomorrow is Friday is certain, therefore the probability is 1.
--If you are sixteen, the probability of you turning seventeen on your next birthday is 1. It's a certain event.

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You need to know how to calculate the volume of a cylinder and how to calculate the volume of a cone. We know that the two things have the same height and they also have the same area for their base.

Let's say that the area of the base is x.

The volume of the cylinder = x * 30 (area of the base multiplied with the height)

The volume of the cone = x/3 * 30 (1/3 multiplied with the area of the base and the height)

This means that the cone has one third of the volume of the cylinder's. Therefore if I pour water from a full cone, I can fill the cylinder only to the third of its volume, and in this case, height. So the answer is 10 cm.

give 2 examples that shows how using parentyeses can change the crder in which operations are preformed in an expression

Answers

(7+3)x4=40

7+(3x4)=19

and

6-(5x2)=-4

(6-5)x2=2

Joe buys a polythene tunnel to protect his plants from frost. It has a semicircular cross section with a diameter of 70cm and a length of 3m.A) find the cross sectional area in m^2

Answers

Sorry I really don’t no amber it is 21

-9y-6+7y=16
What is the answer for this?

Answers

-9y - 6 + 7y = 16
-9y + 7y - 6 = 16
      -2y - 6 = 16
   + 6   + 6
   -2y = 22
      -2    -2
   y = -11

A trapezoid has all three types of symmetry.
a. True
b. False

Answers

Answer:

The given statement is false.

Step-by-step explanation:

A trapezoid has all three types of symmetry.

This is false.

An isosceles trapezoid is a trapezoid with congruent base angles. It has at least 1 and only 1 axis of reflectional symmetry.

A rectangle has 2 reflectional symmetries.

An isosceles trapezoid has no rotational symmetry.

b. False

It does not have rotational, reflection, or point symmetry.

A coin is tossed 10 times resulting in 7 heads and 3 tails. The same coin is tossed 1000 times resulting in 510 heads and 490 tails. What is the theoretical probability of getting heads with this coin?A. 51%
B. 70%
C. 50%
D. 49%

Answers

The answer is C. 50%.

The theoretical probability has nothing to do with the experiments. So, we will forget results of the experiment and think about theoretical probability. A coin has two sides - head and tail. The probability to get head is 1/2 = 0.5 = 50%. This is because if you toss the coin and you get head, head is one probability of two probability in total (head and tail). The same situation is with tail. Tail is .one probability of two probability in total (head and tail).

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A pizzeria makes brick-oven pizzas that are shaped like long rectangles with semi-circles at two ends. The pizzas come in three different sizes, which are measured by the longer side of each rectangle: 14 inches, 18 inches, and 29 inches. All of the pizzas are 10 inches wide, so the semi-circles at the ends have diameters of 10 inches, too. What is the area of each pizza? Use 3.14 for ? , and round your answers to the nearest tenth if necessary.

Find the first,fourth, and eighth terms of the sequence. A(n)=-5*2^n-1

A normal window is constructed by adjoining a semicircle to the top of an ordinary rectangular window, (see figure ) The perimeter of the window is 12 feet. what dimensions will produce a window of maximum area? (Round you answers to two decimal places ) what is the width x= what is the length y.?(Question2) write the function in the form f(×) = ×^3- 6×^2- 15×+9, k = -2.f (×)=?

during a bike challenge, riders have to collect various colored ribbons. each 1/2 mile they collect a red ribbon, each 1/8 mile they collect a green ribbon, and each 1/4 mile they collect a blue ribbon. which colors of ribbons will be collected at the 3/4 mile marker?