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RoseWind [281]
2 years ago
7

A survey of teens suggested that 33% can name at least one professional baseball player, and 90% of those teens can also name at

least one professional football player. In the entire population, 64% can name at least one professional football player. What percentage of teens can name at least one player from these sports? (0.33)(0.64) = 0.2112 0.33 + 0.64 = 0.97 0.33 + 0.64 – (0.33)(0.64) = 0.7588 0.33 + 0.64 – (0.90)(0.33) = 0.673
Mathematics
1 answer:
loris [4]2 years ago
3 0

Answer:

d.\ 0.33 + 0.64 – (0.90)(0.33) = 0.673

Step-by-step explanation:

Given

P(Baseball) = 33\%

P(Baseball\ n\ Football) = 90\%

P(Football) = 64\%

Required

P(Baseball\ or\ Football)

This is calculated as:

P(Baseball\ or\ Football) =P(Baseball) + P(Football) -P(Baseball\ n\ Football)

P(Baseball\ or\ Football) = 0.33 + 0.64 - (0.90)(0.33)

P(Baseball\ or\ Football) = 0.33 + 0.64 - 0.297

P(Baseball\ or\ Football) = 0.673

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sertanlavr [38]

Answer:

Yes

General Formulas and Concepts:

<u>Algebra I</u>

  • Reading a coordinate graph
  • Coordinates (x, y)
  • Solving inequalities

Step-by-step explanation:

When we plot (-2, -4) onto the graph, we can envision that the point is within the shaded region of the graphed line.

∴ (-2, -4) would be a solution.

5 0
3 years ago
Please help me i'm struggling!
anyanavicka [17]

Answer:

B.

Step-by-step explanation:

x < 2 means all numbers less than 2. that is an open dot on 2 and shading to the left.

x >= -8 means -8 and all numbers greater than -8. that is a closed dot on -8 and shading to the right.

Answer: B.

8 0
3 years ago
What is the value of \dfrac{d}{dx}\left(\dfrac{2x+3}{3x^2-4}\right) dx d ​ ( 3x 2 −4 2x+3 ​ )start fraction, d, divided by, d, x
stellarik [79]

Answer:

4.

Step-by-step explanation:

We are asked to find the value of expression \frac{d}{dx}(\frac{2x+3}{3x^2-4}) at x=-1.

First of all, we will find the derivative of the given expression using "Quotient Rule of Derivatives" as shown below:

(\frac{f(x)}{g(x)})'=\frac{f'(x)\cdot g(x)-f(x)\cdot g'(x)}{(g(x))^2}

\frac{d}{dx}(\frac{2x+3}{3x^2-4})

\frac{\frac{d}{dx}(2x+3)*(3x^2-4)-(2x+3)*\frac{d}{dx}(3x^2-4)}{(3x^2-4)^2}

\frac{2*(3x^2-4)-(2x+3)*(6x)}{(3x^2-4)^2}

\frac{6x^2-8-12x^2-18x}{(3x^2-4)^2}

\frac{-6x^2-18x-8}{(3x^2-4)^2}

Therefore, our required derivative is \frac{-6x^2-18x-8}{(3x^2-4)^2}.

Now, we will substitute x=-1 in our derivative to find the required value as:

\frac{-6(-1)^2-18(-1)-8}{(3(-1)^2-4)^2}

\frac{-6(1)+18-8}{(3(1)-4)^2}

\frac{-6+18-8}{(3-4)^2}

\frac{4}{(-1)^2}

\frac{4}{1}

4

Therefore, the value of expression \frac{d}{dx}(\frac{2x+3}{3x^2-4}) at x=-1 is 4.

6 0
3 years ago
Find the area of the trapezoid. Round to the nearest 10th. Pls explain and I will mark brainliest.
dsp73

Answer:

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Step-by-step explanation:

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3 years ago
Lightning struck seven times in four minutes during a storm. On average, the next storm had lightning strikes two more times per
steposvetlana [31]

Answer: Lightning struck 22.5 times in 6 minutes, of the second storm.

<u>First Storm</u>

7/4= 1.75 strikes per minute

<u>Second Storm</u>

1.75+2=3.75

3.75*6=22.5 strikes in the second storm

6 0
2 years ago
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