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TEA [102]
3 years ago
7

An 80% confidence interval for a proportion is found to be (0.27,0.33). What

Mathematics
1 answer:
alexandr402 [8]3 years ago
5 0

Answer:

.30

Step-by-step explanation:

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Lillian can text 22 words in 4 minutes. At this rate, how many words could she text in 22 minutes? Fill out the table of equival
Irina-Kira [14]
Find 1 monutes for a words
so
\frac{22}{4}  = 5.5 \\ then  \\ 22 \times 5.5 \\  = 121words
8 0
3 years ago
PLEASE HELP!!! How is the process for solving multiplication and division one-step equations like solving one-step addition and
777dan777 [17]
All of these only require a single operation before you get x alone. for example:

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compared with
2x = 6

for the first one, you add two and get x = 8. for the second one, you divide by 2 and get x = 3. they're both a single step, as the name "one-step" equations tells you, and you only have to divide, multiply, add, or subtract one value.
8 0
3 years ago
Algebra help needed
lesantik [10]

Answer:

The ball will reach the ground when h=0.

Set the equation equal to 0.

0=-8(2 t-4)(t+1)

t=-1,2

Step-by-step explanation:

The height of a golf ball after it has been hit from the top of a hill can be modeled by the equation

h=-8(2 t-4)(t+1),

where h is the height in feet and t is time in seconds.  

When ball will reach the ground the distance between ball and ground is 0. So, the ball will reach the ground when h=0.

To find the time it takes for the ball to reach the ground,  set the equation equal to 0 and use the Zero Product Property to solve for $t$.

h=-8(2 t-4)(t+1)

\Rightarrow 0=-8(2 t-4)(t+1)

Solve the equation using the Zero Product Property.

2t-4=0\Rightarrow t=\dfrac{4}{2}=2

t+1=0\Rightarrow t=-1

So, t=-1,2

7 0
3 years ago
-1+14x+14p-2x-5p+18 equals what>
jonny [76]
12x+9p+17
All that you need to do is combine like terms
6 0
3 years ago
If f(x) = 2x - 1, find f'(x).​
Kitty [74]

Answer:f(x)=3

Step-by-step explanation:

3 0
3 years ago
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