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
cestrela7 [59]
2 years ago
11

Lucas bought a government savings bond for $1,100. He was told that when the bond can be

Mathematics
1 answer:
dangina [55]2 years ago
6 0

Answer:

r = -0.0056 --> 5.6%

Step-by-step explanation:

You might be interested in
Ok, guys here's the question. PLEASE HELP ME!!
Anit [1.1K]

Answer: the orange juice

Step-by-step explanation:

You would have to dived to get you the fractions to get 4 divide by 3 and you would get 1.33

6 0
3 years ago
Read 2 more answers
Help me plz. I dont understand.
Ahat [919]
For this, you would use simultaneous equations.

w=walnuts
a=almonds

3w+6a=51
5w+4a=55

Find a way to make one of the unknowns equal. since we are trying to work out the price of a pound of walnuts, I am going to make a equal on each side to leave us with w. This leaves us with:

15w+12a=165
6w+12a=102

Then take them away to leave w:

9w=163

Then solve:

w=163/9
= 18.11111111...

Then round it to 2 decimal places as the measurement is currency.

So 1 pound of walnuts equals $18.11
3 0
3 years ago
if the length of a model car is 5 inches & the length of the actual car (real ) is 140 inches. write the scale factor?? 2 qu
Vaselesa [24]
Is this 2 questions or is it just one whole question?
6 0
3 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
Round .1325 to nearest thousandths
m_a_m_a [10]
So,

If the number in the ten-thousandth's place is greater than or equal to 5, then round up.  If not, round down.

0.1325: Note the 5.  We round up.

0.1325 --> 0.133
4 0
3 years ago
Read 2 more answers
Other questions:
  • In the diagram of RST, which term describes point U?
    10·2 answers
  • Discount Rental Cars charges a daily fee plus a mileage fee for renting its cars. Barney was charged $145.00 for 3 days and 310
    12·1 answer
  • Complete the following equation using <, >, or =
    9·1 answer
  • 11:
    7·1 answer
  • the container that holds the water in the football team is 1/2 full after pouring 9 gallons of water it is 5/6 full how many gal
    14·1 answer
  • Can you please answer this for me?
    7·1 answer
  • (3.4 x 10^-6) - (8.3 x 10^-6)
    9·1 answer
  • What are the zeros of f(x) x^2-x-20
    13·2 answers
  • Use the Pythagorean Theorem to find the missing side
    7·1 answer
  • If h(x) = 2/3x -9, find h(-6)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!