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Pie
3 years ago
14

Legalize Marijuana, Part II. As discussed in Exercise 6.10, the General Social Survey reported a sample where about 61% of US re

sidents thought marijuana should be made legal. If we wanted to limit the margin of error of a 95% con dence interval to 2%, about how many Americans would we need to survey
Mathematics
1 answer:
8090 [49]3 years ago
6 0

Answer:

gud

Step-by-step explanation:

u right

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What percent of 30 is 16.5 ?
Inga [223]
Answer: 55%

Explanation.
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3 years ago
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Sharon is jumping from an 18-foot diving board with an initial upward velocity of 4 ft/sWhen Sharon jumps, Megan throws a beach
likoan [24]

Answer:

1.08 seconds

Step-by-step explanation:

given data

<u>first equation:</u>

According to the data, sharon position will be

h(t)= -16 t^{2} + 4t +18---->eq(1)  

<u>Second equation;</u>

When Sharon jumps, Megan throws a beach ball up to Sharon with an initial upward velocity of 16 ft/s from a height 5 feet off the ground to the nearest hundredth of a second

therefore, ball position would be

h(t)= -16t^{2} +16t +5 --->eq(2)

In order to find how long after she jumps does the ball reach Sharon i.e time, we will equate eq(1) and eq(2)

Therefore,

eq(1)= eq(2)

-16t^{2} +4t +18 = -16t^{2} + 16t +5  --->(further simplifying it)

-16t^{2} + 16t^{2} + 18 -5 = 16t - 4t

13 = 12t

t= 13/12

t= 1.08 s

Thus it took 1.08 seconds.

7 0
3 years ago
Solve the inequality. 5 - 4x &gt; 3x - 9
Olegator [25]

Answer:

2 >x

Step-by-step explanation:

5 - 4x > 3x - 9

Add 4x to each side

5 - 4x+4x > 3x+4x - 9

5 > 7x-9

Add 9 to each side

5+9> 7x-9+9

14>7x

Divide each side by 7

14/7 >7x/7

2 >x

6 0
3 years ago
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Mark sorted a set of shapes into two different categories. Explain, what two attributes were used to sort the shapes. help pleas
Aliun [14]

Group A parallelogram, Group B Quadrilateral.

Answer: Parallelogram and Quadrilateral.

4 0
3 years ago
Fins the zeros, multiplicity, and effect on the graph of the function in
tekilochka [14]

Answer:

See explanation

Step-by-step explanation:

Zeroe of the function is such velue of x at which f(x)=0.

1. Consider the function f(x)=-x(3x-2)^2 (x+9)^5.  

Zeros are:

-x(3x-2)^2(x+9)^5=0\\ \\x=0\text{ or }x=\dfrac{2}{3}\text{ or }x=-9.

Zero x=0 has multiplicity of 1, zero x=\dfrac{2}{3} has multiplicity of 2, zero x=-9 has multiplicity of 5.

At x=0 or x=-9 the graph of the function crosses the x-axis, at x=\dfrac{2}{3} the graph of the function touches the x-axis.

2. Consider the function f(x)=x^3+10x^2+25x=x(x^2+10x+25)=x(x+5)^2.  

Zeros are:

x(x+5)^2=0\\ \\x=0\text{ or }x=-5.

Zero x=0 has multiplicity of 1, zero x=-5 has multiplicity of 2.

At x=0 the graph of the function crosses the x-axis, at x=-5 the graph of the function touches the x-axis.

8 0
4 years ago
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