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
MAVERICK [17]
3 years ago
15

PLEASE HELP!!!!Math Homework

Mathematics
1 answer:
Finger [1]3 years ago
8 0

You need to add the second number and the answer to get your answer

A. 2

B.6

D.5

F.4

G. 3


You might be interested in
2x2 + 2x - 1 when x = -3
myrzilka [38]
2x2+2x-1=
4+2(-3)-1=
4+(-6)-1=
4+(-7)=
-3
4 0
2 years ago
Read 2 more answers
I need some help plz!!!
jek_recluse [69]
1.04 kilograms

1 gram = .001 kilogram
2x520= 1040
1040 x .001 = 1.04 kilograms
5 0
3 years ago
A personnel director in a particular state claims that the mean annual income is the same in one of the​ state's counties​ (Coun
Shalnov [3]

Answer:

a) The hypothesis that the mean annual income is the same could not be rejected. There is no enough evidence to claim they are different.

b) The critical values for this two-sided test are t=±1.711.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>(a) Identify the claim and state  H0  and  Ha. </em>

<em> Which is the correct claim​ below?</em>

<em>(b) Find the critical​ value(s) and identify the rejection​ region(s). </em>

<em> Enter the critical​ value(s) below.</em>

We have an hypothesis test on the difference of two means.

The null and alternative hypothesis are:

H_0: \mu_a-\mu_b=0\\\\H_a: \mu_a-\mu_b\neq 0

The claim of the alternative hypothesis is that the mean annual income is different in County A and County B.

The null hypothesis is that the mean annual income is equal in both counties.

The significance level is α=0.10.

The sample from County A has a mean of S40,400, a s.d. of $8,700 and a sample size of 18 residents.

The sample from County B has a mean of S39,200, a s.d. of $6,000 and a sample size of 8 residents.

The standard error of the difference of means is:

\sigma_d=\sqrt{\frac{\sigma_a^2}{n_a}+\frac{\sigma_b^2}{n_b}}=\sqrt{\frac{8700^2}{18}+\frac{6000^2}{8}}=\sqrt{8705000}=2950

The degrees of freedom are:

df=n_a+n_b-2=18+8-2=24

Then, the test statistic is:

t=\frac{\Delta M-\Delta \mu}{\sigma_d} =\frac{(40,400-39,200)-0}{2950} =\frac{1200}{2950}=0.407

For a statistic t=0.407, and df=24, the P-value is P=0.69. As the P-value is bigger than the significance level, the null hypothesis failed to be rejected.

If we would use the critial value approach, we would have to calculate the critical values for t, for df=24, two sided test and α=0.10.

The critical values, looking in a table, are t=1.711.

5 0
3 years ago
Which method <br> HL<br> Asa <br> Sas <br> Sss<br> Aas pls help
Sunny_sXe [5.5K]

Answer:

Step-by-step explanation:

ASA because you have the given angles and sides ≅ and the vertical angles are also ≅

6 0
3 years ago
Read 2 more answers
Quadrilateral with vertices at A(2,2), B(1,5) C(5,3), D(4,6)
MatroZZZ [7]
I have attached an image explaining how to solve this problem.
(“m” means slope)

6 0
2 years ago
Other questions:
  • What are the answers
    12·1 answer
  • Is Retail price the orginal price
    11·1 answer
  • The dimensions of a rectangular prism are length is 2 1/4 feet width is 1 foot and height is 1 1/4 feet and the length of the si
    10·2 answers
  • Three out of evry 45 tickets sold in a food bank raffle will win a prize.If Eli bought 15 tickets, how many prizes would he expe
    15·1 answer
  • Its actually f(x) = -(x - 4)^2 + 5
    13·1 answer
  • an verage person has 6x10^2 times as many red bloods cells as white blood cells. A small sample of blood has 7x10^3 white blood
    14·1 answer
  • Angelo cuts a piece of wood for a project. The first cut is shown and can be represented by the equation y - 5x-1. The second cu
    8·1 answer
  • I need HELP ASAP! It’s due today
    11·2 answers
  • If this figure is a regular figure? How many degrees does each angle measure?
    11·1 answer
  • #3 i
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!