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3 years ago

13

The two-way table shows the medal count for the top-performing countries in the 2012 Summer Olympics.

2 answers:

anyanavicka [17]3 years ago

8 0

Answer:

A. The probability that a randomly selected silver medal was awarded to Great Britain is .

Step-by-step explanation:

Yanka [14]3 years ago

7 0

Although the answer choices are not complete, we may evaluate the probability of each event.

Total silver medals = 99
Great Britain's silver medals = 17
A should be 17/99

Total Russian medals = 82
Russian bronze medals = 32
B should be 32/82 = 16/41

Total gold medals = 137
Chinese gold medals = 38
C should be 38/137

Total US medals = 104
US silver medals = 29
D should be 29/104

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F(x)=2x^2-x-6 g(x)=4-x (f+g)(x)

Semenov [28]

$\large \boxed{(f + g)(x) = f(x) + g(x)}$

The property above is distribution property where we distribute x-term in the function.

Substitute both f(x) and g(x) in.

$\large{ \begin{cases} f(x) = 2 {x}^{2} - x - 6 \\ g(x) = 4 - x \end{cases}} \\ \large{f(x) + g(x) = (2 {x}^{2} - x - 6) + (4 - x)} \\ \large{f(x) + g(x) = 2 {x}^{2} - x - 6 + 4 - x}$

Évaluate/Combine like terms.

$\large{f(x) + g(x) = 2 {x}^{2} - 2x - 2}$

The function can be factored so there are two answers. (Both of them work as one of them is factored form while the other one is not.)

$\large{(f + g)(x) = 2 {x}^{2} -2x -2}$

<u>Alternative</u>

$\large{(f + g)(x) = 2({x}^{2} -x - 1)}$

<u>Answer</u>

(f+g)(x) = 2x²-2x-2
(f+g)(x) = 2(x²-x-1)

Both answers work. The second answer is in factored form.

Let me know if you have any doubts!

8 0

2 years ago

Please help me with number 3

Trava [24]

Answer:

y=x(squared) -6x+5

Step-by-step explanation:

7 0

2 years ago

Write 500.2 in word form

Rainbow [258]

Answer:

Five hundred point two

Step-by-step explanation:

500.2

That's a deimal.

The digit 5 is an hundred. Hence, we have

Five hundred point two

7 0

3 years ago

A car travels 182 kilometers in 4 hours with the constant speed. how much time will it take traveling 42 kilometers

Schach [20]

Answer:

55.38 min

Step-by-step explanation:

A car travels,

182 km ⇒ 4 hours

And we have to find the time that it takes to travel 42 km .

Lets make a equation.

Let the unknown time be x

182 km ⇒ 4 hours

42 km ⇒ x

To make easy let's km in to meters and hours in to minutes

182000 m ⇒ 240 min

42000m ⇒ x

Now use cross multiplication.

$182000x=240*42000\\$

$182000x=10080000$

$\frac{182000x}{182000} =\frac{1008000}{182000}$

$x =55.38min$

Hope this helps you.

Let me know if you have any other questions :-)

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2 years ago

What’s the area? Please help

Nana76 [90]

Answer:

24.5

Step-by-step explanation:

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3 years ago