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
ASHA 777 [7]
3 years ago
9

Harry took a loan from the bank.

Mathematics
1 answer:
inna [77]3 years ago
3 0

Answer:

If there is no interest then $9000

Step-by-step explanation:

-200t represents paying back 200 dollars a month

9000 represents original debt (including interest)

You might be interested in
A bowl weighs 11/40<br> lb. Express this as a decimal.
Ivanshal [37]

Answer:

Decimal: 0.275           Percentage: 27.5

Step-by-step explanation:

4 0
3 years ago
A genetic experiment involving peas yielded one sample of offspring consisting of 420 green peas and 174 yellow peas. Use a 0.01
slavikrds [6]

Answer:

a) z=\frac{0.293 -0.23}{\sqrt{\frac{0.23(1-0.23)}{594}}}=3.649  

b) For this case we need to find a critical value that accumulates \alpha/2 of the area on each tail, we know that \alpha=0.01, so then \alpha/2 =0.005, using the normal standard table or excel we see that:

z_{crit}= \pm 2.58

Since the calculated value is higher than the critical value we have enough evidence to reject the null hypothesis at 1% of significance.

Step-by-step explanation:

Data given and notation

n=420+174=594 represent the random sample taken

X=174 represent the number of yellow peas

\hat p=\frac{174}{594}=0.293 estimated proportion of yellow peas

p_o=0.23 is the value that we want to test

\alpha=0.01 represent the significance level

Confidence=99% or 0.99

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportion of yellow peas is 0.23:  

Null hypothesis:p=0.23  

Alternative hypothesis:p \neq 0.23  

When we conduct a proportion test we need to use the z statisitc, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.293 -0.23}{\sqrt{\frac{0.23(1-0.23)}{594}}}=3.649  

Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a bilateral test the p value would be:  

p_v =2*P(z>3.649)=0.00026  

So the p value obtained was a very low value and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis.

b) Critical value

For this case we need to find a critical value that accumulates \alpha/2 of the area on each tail, we know that \alpha=0.01, so then \alpha/2 =0.005, using the normal standard table or excel we see that:

z_{crit}= \pm 2.58

Since the calculated value is higher than the critical value we have enough evidence to reject the null hypothesis at 1% of significance.

5 0
3 years ago
Find x. (Use pic for more info)
V125BC [204]

Answer:

x=75

Step-by-step explanation:

Hey There!

If you didn't know the exterior angle of a triangle is equal to the sum of the opposite interior angles of a triangle

So essentially what I'm saying is that

2x-5=70+x

step 1 add 5 to each side

-5+5 cancels out

70+5=75

now we have

2x=70+x

step 2 subtract x from each side

x-x cancels out

2x-x=x

we're left with

x=75

8 0
3 years ago
What percentage of boys can cycle give your answer rounded to 1 DP??????
Sergeeva-Olga [200]

Answer:

try and plug in number like 15 like and then find the answer that makes the 125

Step-by-step explanation:

4 0
2 years ago
Simplify the expression:<br> 2 – 6p - 4 + -3
Margaret [11]

Answer:

3 - 6p

Step-by-step explanation:

I think that's the answer :)

I hoped that helped!

7 0
2 years ago
Other questions:
  • Someone please help and explain it would really help
    5·1 answer
  • A pyramid is placed inside a prism as shown. The pyramid has the same base area, B, as the prism but half the height, h, of the
    8·1 answer
  • (3x+4)^3=2197 solve this equation
    12·2 answers
  • A man starts walking from home and walks 3 miles at north of west, then 5 miles at west of south, then 4 miles at north of east.
    8·1 answer
  • Kira brought chocolate and vanilla cupcakes to school for her birthday. 80 students decided to take a cupcake, and 32 of them pi
    6·1 answer
  • Please help with this.<br> thanks sm!
    8·1 answer
  • There is a box with 6 marbles: 3 red, 1 blue, 1 green, and 1 yellow. What is the probability of picking yellow marble, keep it,
    13·2 answers
  • 6. 2x+(-4)y<br> (if x = -4 and y=-2)<br> Evaluate each expression using the variable replacement
    8·2 answers
  • Ryan has 8 kittens. Two are white. what fraction of the kittens are not white? Write in simplest form. I will brainliest
    12·2 answers
  • Which table contains ordered pairs that lie on the graph of the equation -2x + 4y = 16?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!