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Dafna11 [192]
3 years ago
5

4 more than the product of three and number x

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
6 0

Answer:

3x +4

Step-by-step explanation:

More than means add and product means multiply

3x +4

Ludmilka [50]3 years ago
5 0

Answer:

3x times 4

Step-by-step explanation:


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The following data summarizes results from 889 pedestrian deaths that were caused by accidents. If one of the pedestrian deaths
pickupchik [31]

Answer:

P(A or B) = 0.291 +0.159 -0.0562=0.3938

Step-by-step explanation:

Previous concepts

The total probability rule is "used to find the probability of an event, A, when you don’t know enough about A’s probabilities to calculate it directly. Instead, you take a related event, B, and use that to calculate the probability for A".

Solution to the problem

The data given:

                                                             Pedestrian

                                       Intoxicated                       Not intoxicated     Total          

Intoxicated                           50                                        91                    141

Not intoxicated                    209                                     539                 748

Total                                     259                                      630                889

The rows on this case are associated to the tyep of Driver.

Let's define the following events:

A =Pedestrian was intoxicated

B= Driver was intoxicated

And we can find the probabilities for the events A and B like this with the info given:

P(A) = \frac{50+209}{889}=0.291

P(B) = \frac{50+91}{889}=0.159

We can find also the probaility that pedestrian was intoxicated AND driver was ​intoxicated, like this:

P(A and B) = \frac{50}{889}=0.0562

Because the intersection for the events A and B is 50 and the grand total is 889.

Now we can use the total rule of probability given by this:

P(A or B) = P(A) +P(B) -P(A and B)

And since w ehave everything to replace we got:

P(A or B) = 0.291 +0.159 -0.0562=0.3938

7 0
3 years ago
How to find the perimeter of a semicircle​
Elza [17]

Answer: Formula: P=\frac{\pi d}{2}+d

Step-by-step explanation:

Formula: P=\frac{\pi d}{2}+d

Where;

P=perimeter\\\pi = pi (3.14)\\d= diameter\\

5 0
3 years ago
If two angles are both vertical and supplementary, can we determine the angles? Is it possible to be both vertical and complemen
Lorico [155]

Answer:

i. Two angles can be vertical and supplementary.

ii. Yes, we can determine the angles.

Step-by-step explanation:

When two angles are vertical, it implies that they are equal (with respect to vertical opposite property). While two angles are supplementary if and only if they add up to 180 degrees .

It is not mandatory for the two angles to be beside each other so as to be supplementary. So that in this special case, the only measure of angles that can be both vertical and supplementary is 90 degrees .

This answer is right. Please mark Brainliest!

3 0
3 years ago
Is 3cm, 4cm, 5cm a right triangle?
guajiro [1.7K]

Answer:

Yes

Step-by-step explanation:Given sides measurement satisfy Pythagoras theorem.

(5)^2=25

(3)^2+(4)^2=25

Thus it is a right angled ∆

8 0
3 years ago
A serving of ice cream contains 8500 calories. 1500 calories comes from fat. What percent of the total calories come from fat?
Genrish500 [490]
Perfect :)

Again, 1500/8500 ≈ 17.64%.

Again, write about 17.64% as, though i'm not sure about your teachers, but my teachers used to take marks off for that...
7 0
3 years ago
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