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alexandr1967 [171]
3 years ago
14

Damita wants to read a 257-page book in one week,she plans to read 36 pages each day, will she reach jer goal? Explain

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0
Yes, because if you multiply 36 pages with seven days the answer was 252 pages. but ir could be 36 pages and a half
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In an article in Marketing Science, Silk and Berndt investigate the output of advertising agencies. They describe ad agency outp
fredd [130]

Answer: (7.27%, 7.55%)

Step-by-step explanation:

As per given , we have

Sample size : n= 392

Sample mean : \overline{x}=7.41\%

\sigma=1.43\%

Critical two-tailed z-value for 95% confidence = z_{\alpha/2}=1.96

Required confidence interval would be :

7.41\%\pm (1.96)\dfrac{1.43\%}{\sqrt{392}}\\\\=7.41\%\pm 0.14\%\\\\=(7.27\%, 7.55\%)

Hence, the required 95% confidence interval for the mean percentage share of billing volume from network television for the population of all U.S. advertising agencies : (7.27%, 7.55%)

7 0
4 years ago
A bakery packages 868 muffins into a 31 boxes. The same number of muffins are put into each box. How many muffins are in each bo
MatroZZZ [7]
You would need to put 868 muffins equally into 31 boxes. So 868 divide by 31= 28 muffins per box.
3 0
3 years ago
Derive the equation of the parabola with a focus of (-5,-5) and a directrix of y=7.
adoni [48]

Answer:

y=-\frac{1}{24}(x+5)^2+1

Step-by-step explanation:

The given parabola has its focus at (-5,-5) and the directrix is at: y=7.

The equation of such parabola is given by the formula:

(x-h)^2=-4p(y-k)

The vertex of the parabola is the midpoint of (-5,-5) and (-5,7).

(\frac{-5+-5}{2},\frac{-5+7}{2} )=(-5,1)

The value of p is the distance from the (-5,-5) to (-5,1).

p=|1--5|=6

We substitute the values of the vertex and p into the equation to get;

(x--5)^2=-4(6)(y-1)

(x+5)^2=-24(y-1)

Or

y=-\frac{1}{24}(x+5)^2+1

3 0
3 years ago
PLEASE HELP!!!! Complete the frequency table using the ages above and use the frequency table to make a graph
xxTIMURxx [149]
50-54= 2
55-59= 4
60-64= 3
65-69= 3

I hope this helps But what I did was I counted how many numbers were in between each of the two numbers.
7 0
3 years ago
Read 2 more answers
Solve for x Round your answer to the newer hundredth.
snow_lady [41]
X< 48.84

The first answer
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3 years ago
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