1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Gre4nikov [31]
3 years ago
12

Q4. The dimensions of a rectangular sheet of metal are 9.96m by 5.08 m. Find

Mathematics
1 answer:
Vesnalui [34]3 years ago
6 0

Answer:

a) 30m

b) 50.6m²

Step-by-step explanation:

Perimeter = 2(length + width)

= 2(9.96 + 5.08)

= 30.08 m

Area = length × width

9.96 × 5.08

50.5968 m²

You might be interested in
Question is in the picture, please include step-by-step process.
Lemur [1.5K]
You would do the ((2 x 3.14) divided by four) x 3 To get the answer I will explain it if it’s right
4 0
2 years ago
Read 2 more answers
The average yield of the standard variety off soybeans per acre on a farm in a region is 48.8 bushels per acre, with a standard
I am Lyosha [343]

Answer:

z=\frac{53.4-48.8}{\frac{12}{\sqrt{36}}}=2.3  

p_v =P(Z>2.3)=1-P(Z  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean is not significantly higher than 48.8 at 1% of signficance.  

Step-by-step explanation:

1) Data given and notation  

\bar X=53.4 represent the sample mean

\sigma=12 represent the population standard deviation assumed

n=36 sample size  

\mu_o =48.8 represent the value that we want to test  

\alpha=0.01 represent the significance level for the hypothesis test.  

z would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

2) State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is higher than 48.8, the system of hypothesis would be:  

Null hypothesis:\mu \leq 48  

Alternative hypothesis:\mu > 48  

Since we assume that know the population deviation, is better apply a z test to compare the actual mean to the reference value, and the statistic is given by:  

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

z-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

3) Calculate the statistic  

We can replace in formula (1) the info given like this:  

z=\frac{53.4-48.8}{\frac{12}{\sqrt{36}}}=2.3  

4)P-value  

Since is a right tailed test the p value would be:  

p_v =P(Z>2.3)=1-P(Z  

5) Conclusion  

If we compare the p value and the significance level given \alpha=0.01 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, so we can conclude that the true mean is not significantly higher than 48.8 at 1% of signficance.  

3 0
3 years ago
If the perimeter of a square garden is 84 feet, what is the area of the garden?
EastWind [94]
441ft²     (i believe this is the answer, idk though, i might be wrong sorry)
6 0
3 years ago
Read 2 more answers
Ok Please Graph x > 2
Anon25 [30]

Answer:

Step-by-step explanation:

4 0
3 years ago
If f(z)=m^z - n^z, and f(1)=2, f(2)=8. Find f(3).
Marina CMI [18]
If f(z)=m^z - n^z <span>and f(1)=2, f(2)=8
then
m -  n = 2 so m = n + 2 
m^2 - n^2 = 8

substitute </span>m = n + 2  into m^2 - n^2 = 8

so
m^2 - n^2 = 8
(n + 2)^2 - n^2 = 8
n^2 + 4n + 4 - n^2 = 8
4n = 4
  n = 1

m = n + 2 = 1 + 2 = 3

so f(z) = 3^z - 1^z

if z = 1 the f(1) = 3^1 - 1^1 = 2
if z = 2 the f(2) = 3^2 - 1^2 = 9 - 1 = 8
if z = 3 the f(3) = 3^3 - 1^2 = 27 - 1 = 26

answer
f(3) = 26

3 0
3 years ago
Other questions:
  • Solve algebraically 3^x= 243
    10·2 answers
  • Solve the system of equations:<br><br> x - 3y = - 4<br> 2x - 6y= 6
    7·1 answer
  • Ms. Perkins has a bag of candy with 30 pieces. She gave away 1/5 of the pieces to her students. How many pieces does she have le
    8·1 answer
  • How would you write the equation with a slope of 2/3 and a y-intercept of -3​
    13·1 answer
  • a brother is 12 years older than his sister. four years ago, the brother was 3 times as old as the sister is now. how old is the
    9·2 answers
  • Can someone help me with this problem
    15·1 answer
  • Need help with asap!!
    8·2 answers
  • if the national economy shrank at an annual rate of 6% per year for 3 consecutive years, then the economy shrank by 18% over the
    10·2 answers
  • Question 6 of 10 What is the slope of the line that contains the points (-2, 2) and (3, 4)? O A. 01N B. 5 C. 5 2 D. 2 SUBMIT​
    8·1 answer
  • What is the Scale factor of 35 to 42
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!