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
melomori [17]
3 years ago
8

Which interval notation represents the set of all numbers from -9 to 0, inclusive?

Mathematics
1 answer:
Firlakuza [10]3 years ago
8 0

Answer:

[-9,0]

Step-by-step explanation:

You use brackets to indicate that the numbers, in this case -9 and 0, are included in the interval.

You use parentheses to indicate that the numbers are excluded from the interval.

Since we want to include the numbers in the interval, we use the brackets.

The answer is [-9,0]

Hope this helps!

You might be interested in
Katherine invested $86,000 in an account paying an interest rate of 52%
earnstyle [38]

Answer: $4,331‬

Step-by-step explanation:

I will assume that the question meant 5.2% not 52% as this is quite excessive.

Katherine after 13 years.

Convert the variables;

n = 13 years = 13 * 365 = ‭4,745‬ days

r = 5.2% = 5.2/365 = 5.2/365%

Future value = P * ( 1 + r)^n

= 86,000 * (1 + 5.2/365%)⁴⁷⁴⁵

= $169,068

Michael after 13 years;

If compounded continuously, the formula is;

Future value = Pe^rt

= 86,000 * e⁰.⁰⁵ ˣ ¹³

= $164,737

Difference = 169,068 - 164,737

= $4,331‬

5 0
3 years ago
Due in 20 mins help pls
Lubov Fominskaja [6]

Step-by-step explanation:

{13}^{2}  =  {6.5}^{2}  +  {x}^{2}  \\  {x}^{2}  = 126.75 \\ x = 11.2

7 0
3 years ago
Read 2 more answers
Reuben invested his savings in two investment funds. The amount he invested in Fund A was 3 times as much as the amount he inves
andreyandreev [35.5K]

Answer:

5/100×1710=20

1710÷20=85.5 dollers

8 0
3 years ago
The total amount of money saved in
fiasKO [112]
Answer is 14

Step by step explanation

The amount is same so
64+8w=92+6w
2w=92-64=28
w=14 => after 14 weeks
6 0
3 years ago
Below are three different hypothesis tests about population proportions. For each test, use StatKey and the information given to
Ilia_Sergeevich [38]

Answer:

1a) p-hat=0.38

1b) P=0.08

1c) The null hypothesis is not rejected

2a) p-hat=0.64

2b) P=0.0027

2c) The null hypothesis is rejected

3a) p-hat=0.55

3b) P=0.153

3c) The null hypothesis is not rejected

Step-by-step explanation:

(1) H0: p = 0.3 vs Ha: p ≠ 0.3. In their survey, they had a count of 38 using a sample size n=100.

1a) The p-hat is p-hat=38/100=0.38.

1b) The standard deviation is

\sigma=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.3*0.7}{100}}=0.046

The sample size is n=100.

The z-value is:

z=\frac{\hat{p}-p}{\sigma}=\frac{0.38-0.3}{0.046}=\frac{0.08}{0.046}= 1.74

As it is a two-sided test, the p-value considers both tails of the distribution.

The p-value for this |z|=1.74 is P=0.08.

1c) The null hypothesis is not rejected.

(2) H0: p = 0.7 vs Ha: p ≠ 0.7. In their survey, they had a count of 320 using a sample size n=500.

2a) The p-hat is p-hat=320/500=0.64.

2b) The standard deviation is

\sigma=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.7*0.3}{500}}=0.02

The sample size is n=500.

The z-value is:

z=\frac{\hat{p}-p}{\sigma}=\frac{0.64-0.7}{0.02}=\frac{-0.06}{0.02}=-3

As it is a two-sided test, the p-value considers both tails of the distribution.

The p-value for this |z|=3 is P=0.0027.

2c) The null hypothesis is rejected.

(3) H0: p = 0.6 vs Ha: p < 0.6. In their survey, they had a count of 110 using a sample size n=200.

2a) The p-hat is p-hat=110/200=0.55.

2b) The standard deviation is

\sigma=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.6*0.4}{200}}=0.035

The sample size is n=200.

The z-value is:

z=\frac{\hat{p}-p}{\sigma}=\frac{0.55-0.6}{0.035}=\frac{-0.05}{0.035}=-1.43

As it is a two-sided test, the p-value considers both tails of the distribution.

The p-value for this |z|=1.43 is P=0.153.

2c) The null hypothesis is not rejected.

8 0
3 years ago
Other questions:
  • True or false? If you took a true "if-then" statement, inserted a not in clause, and reversed the clauses, the new statement wou
    8·2 answers
  • Two feet is what percent of a yard? And please explain how I find the answer
    13·1 answer
  • The first three terms of a geometric sequence are as follows. −4 , 20 , −100 find the next two terms of this sequence. give exac
    14·1 answer
  • What is 8/10 minus 1/2?
    10·1 answer
  • You deposited $475 into the bank at a 6% interest rate. How much will be in the account after three years
    11·1 answer
  • In the diagram below, is an altitude of DEF. What is the length of ? If necessary, round your answer to two decimal places.
    13·1 answer
  • PLEASE HELP ILL GIVE BRAINILEST ANSWER!
    12·1 answer
  • The figure below shows the dimensions of an arrow painted on the pavement of a parking lot. The entire length of the arrow is 6.
    9·1 answer
  • 10v2 + 50
    5·1 answer
  • Which model represents 1.56+0.33 <br> Pls pls help me
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!