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
kramer
3 years ago
13

PLEASE HELP ME!!!!!!!!!!!!

Mathematics
1 answer:
o-na [289]3 years ago
6 0
<h2>The correct Answer is:</h2><h2>C. = 16</h2>

You might be interested in
What is the value of xy/z if x=-2 and z=4
CaHeK987 [17]
(-2)(y)/4

What is the value of y, I think this is missing to figure out the final answer.

But once y is known you will use the xy/z gormils. Multiply -2 and y value. Then divide that by 4.

Please vote my answer brainliest. thanks!
7 0
3 years ago
A survey of students' favorite sports was taken from a random sample of
White raven [17]

Answer:

129

Step-by-step explanation:

Considering the survey to be representative, you can simply multiply the share of students <em>p</em> preferring “Track & Field” with the whole school population at the same time to estimate the number of such students in the whole school.

First we need to find the relative share <em>p</em> of such answers in the study by dividing it by the sum of answers, assuming that the table is complete for that random sample:

<em>p</em> = 4/(8 + 5 + 4) = 4/17

Then for the whole school we get 550 <em>p</em> ≈ 129.4

6 0
2 years ago
Arithmetic Sequences:
lisov135 [29]
Início = 6 h
9 x 6 = 54 
6:54 passou o nono ônibus
próximo ônibus = 6:54 + 9 = 7:03
próximo = 7:03 + 9 = 7:12
próximo = 7:12 + 9 = 7:21
você chegou às 7:16 e vai esperar 21-16 = 5 minutos
3 0
2 years ago
A theory predicts that the mean age of stars within a particular type of star cluster is 3.3 billion years, with a standard devi
Luden [163]

Answer:

Null hypothesis:\mu \leq 3.3  

Alternative hypothesis:\mu > 3.3  

z=\frac{3.4-3.3}{\frac{0.4}{\sqrt{50}}}=1.768  

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

p_v =P(z>1.768)=0.039  

Step-by-step explanation:

Data given and notation

\bar X=3.4 represent the sample mean  

\sigma=0.4 represent the population deviation for the sample

n=50 sample size  

\mu_o =3.3 represent the value that we want to test  

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

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

State the null and alternative hypotheses to be tested  

We need to conduct a hypothesis in order to determine if the mean is higher than 3.3, the system of hypothesis would be:  

Null hypothesis:\mu \leq 3.3  

Alternative hypothesis:\mu > 3.3  

Compute the test statistic  

We know the population deviation, so for this case 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".  

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

z=\frac{3.4-3.3}{\frac{0.4}{\sqrt{50}}}=1.768  

P value

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

p_v =P(z>1.768)=0.039  

6 0
2 years ago
Use the guess and check method to solve for the equation : 4(x+2)+2=14 please help need answer
TiliK225 [7]

4(x+2)+2=14

4x+8+2=14

4x+10=14

Subtract 10 from both sides

4x=4

Divide by 4 on both sides

x=1

4 0
3 years ago
Other questions:
  • Describe a pattern in each sequence. What are the next two terms of each sequence? 2, 4, 8, 16, . . .. . A. add 2 to the previou
    9·1 answer
  • What is the missing reason in step 5? Statements Reasons 1. ABCD is a kite 1. given 2. AB ≅ BC, BP ⊥ AC 2. definition of kite 3.
    14·2 answers
  • Maria is playing a video game. She earns 15 points when she completes Level 1. Each time she completes a level, she earns twice
    11·2 answers
  • Input Output Table 2 Input Output 12 19 13 20 14 ? 15 22 16 23 Which rule describes the relationship between the input/output va
    8·1 answer
  • Tim's bean sprout grew 3/ inches. Teegan's bean sprout grew 2 3/4 inches. How many more inches did Tim's bean sprout grow than T
    13·1 answer
  • You work as a sales clerk at a fashion boutique. The store is having a 20 percent off everything sale. Additionally, your manage
    13·2 answers
  • If θ is an angle in standard position and its terminal side passes through the point (1/2,√3/2) on a unit circle, a possible val
    11·1 answer
  • Think about the numbers -10 and 10. How could you describe these numbers? What is the same and what is different about these num
    13·1 answer
  • Does the bathroom have enough water and shampoo for 888 long-haired members and 777 short-haired members?
    13·1 answer
  • Plz help me with a, b, c, and d <br><br> Thx
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!