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Ymorist [56]
3 years ago
5

NEED THE ANSWER ASAP

Mathematics
2 answers:
quester [9]3 years ago
8 0
Not 100% sure this is right but
60cm^2
RUDIKE [14]3 years ago
5 0
I got 190cm^2
To find the surface area, find the area of each of the rectangle on the sides, which is 35, and multiply that by 4 to get all four sides and you get 140. Then multiply 5x5 to get the top and bottom squares and you get 50. Add 140 and 50 and you get 190. Hope that helps
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A horticulturist working for a large plant nursery is conducting experiments on the growth rate of a new shrub. Based on previou
valkas [14]

Answer:

t=\frac{1.8-2}{\frac{0.5}{\sqrt{48}}}=-2.771    

The degrees of freedom are given by:

df=n-1=48-1=47  

And the p value would be:

p_v =P(t_{(47)}    

Since the p value is lower than the significance level we have enough evidence to conclude that the true mean for this case for the growth rate is less than 2cm per week

Step-by-step explanation:

Information given

\bar X=1.8 represent the sample mean for the growth

s=0.5 represent the sample standard deviation    

n=48 sample size    

\mu_o =2 represent the value that we want to compare

\alpha=0.01 represent the significance level

t would represent the statistic    

p_v represent the p value

System of hypothesis

We need to conduct a hypothesis in order to check if the true mean is less than 2cm per week, the system of hypothesis are :    

Null hypothesis:\mu \geq 2    

Alternative hypothesis:\mu < 2    

Since we don't know the population deviation the statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)    

Replacing the info given we got:

t=\frac{1.8-2}{\frac{0.5}{\sqrt{48}}}=-2.771    

The degrees of freedom are given by:

df=n-1=48-1=47  

And the p value would be:

p_v =P(t_{(47)}    

Since the p value is lower than the significance level we have enough evidence to conclude that the true mean for this case for the growth rate is less than 2cm per week

6 0
3 years ago
10. Shown is a circle centre o
Aleksandr [31]

Answer:

.

Step-by-step explanation:

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3 years ago
The scores of individual students on the american college testing (act) program composite college entrance examination have a no
Alona [7]
The mean of the distribution of the sampling mean is the same as the mean of the population, 18.6.
3 0
3 years ago
The volume of a sphere is increased by 6%. Calculate the corresponding percentage increased in it area.
lions [1.4K]

Answer:

The new volume will be V + 0.06V or 1.06V

Step-by-step explanation:

The volume of the sphere increased by 6% or 0.06V. This means the total volume of the sphere will be V + 0.06V or 1.06V.


3 0
3 years ago
Lucy needs to buy some organic apples, and her grocery store is having a sale on them. If she buys 3 or fewer pounds of apples,
Helga [31]
It is A you are correct

7 0
3 years ago
Read 2 more answers
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