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
g100num [7]
3 years ago
14

1.Points A and B are to be mapped onto a number line according to two equations. The solution to the equation is the coordinate

of point A. The solution to the equation is the coordinate of point B. (a)Solve the first equation to find the coordinate of point A. Show your work. (b)Solve the second equation to find the coordinate of point B. Show your work. (c)Determine the distance between points A and B. Explain. Answer:
(Score for Question 2: ___ of 4 points) 2.Kim is x years old. Jordan is 7 years older than Kim. Four times Jordan’s age is equal to 200. (a)Write an equation that could be used to solve for Kim’s age, x. (b)How old is Kim? (c)How old is Jordan? Answer:



(Score for Question 3: ___ of 5 points) 3.Solve the given inequality and graph the solution on a number line. 
Mathematics
2 answers:
ohaa [14]3 years ago
5 0
.Kim is x years old. Jordan is 7 years older than Kim. Four times Jordan’s age is equal to 200. (a)Write an equation that could be used to solve for Kim’s age, x. (b)How old is Kim? (c)How old is Jordan? Answer:

Kim = x
Jordan = x + 7

4(x+7) = 200
4x + 28 = 200
4x = 200 - 28
4x = 172
x = 172/4
x = 43. Kim's age

Jordan: x + 7 → 43+7 = 50
grigory [225]3 years ago
4 0

Answer:Solve these equations. Show solutions on a number line.

f

x−7

=x−7 ygil

Step-by-step explanation:

You might be interested in
Cho hệ các vector
shutvik [7]

Answer: whats the question?

Step-by-step explanation:

7 0
3 years ago
Explain why the triangles are similar. Then find the value of x.
djyliett [7]
Answer: Choice A) AA postulate; 18

---------------------------------------------------------------------------------------

Work Shown:

The triangles are similar to each other due to the AA (angle angle) postulate. The top angles are overlapping or shared angles. So that's the first pair. The second pair of angles is either bottom pair of angles, from the fact that corresponding angles are congruent. This is only true if the lines are parallel.

Due to the similar triangles, we can set up the proportion and solve for x
8/(8+4) = 12/x
8/12 = 12/x
8*x = 12*12 ... cross multiply
8x = 144
x = 144/8
x = 18

8 0
3 years ago
Why might the mean of a probability distribution for a discrete random variable be less than (or greater than) the average of po
user100 [1]

The Normal probability distribution function is left-skewed, right-skewed, or symmetric depending on the values of the variance and the standard deviation might the mean of a probability distribution for a discrete random variable be less than (or greater than) the average of possible values.

A probability distribution is a mathematical function that describes the probabilities of different possible values ​​of a variable. Probability distributions are often represented using graphs or probability tables.

Probability distributions are called discrete probability distributions, and the set of outcomes is inherently discrete. For example, if you roll a die, all possible outcomes are discrete and you get a large number of outcomes. Also called probability mass function.

Learn more about probability distribution at

brainly.com/question/9385303

#SPJ4

4 0
2 years ago
A sample of salary offers (in thousands of dollars) given to management majors is: 48, 51, 46, 52, 47, 48, 47, 50, 51, and 59. U
balu736 [363]

Answer:

Step-by-step explanation:

number of samples, n = 10

Mean = (48 + 51 + 46 + 52 + 47 + 48 + 47 + 50 + 51 + 59)/10 = 49.9

Standard deviation = √(summation(x - mean)/n

Summation(x - mean) = (48 - 49.9)^2 + (51 - 49.9)^2 + (46 - 49.9)^2+ (52 - 49.9)^2 + (47 - 49.9)^2 + (48 - 49.9)^2 + (47 - 49.9)^2 + (50 - 49.9)^2 + (51 - 49.9)^2 + (59- 49.9)^2 = 128.9

Standard deviation = √128.9/10 = 3.59

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation

From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the z score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 10 - 1 = 9

Since confidence level = 95% = 0.95, α = 1 - CL = 1 – 0.95 = 0.05

α/2 = 0.05/2 = 0.025

the area to the right of z0.025 is 0.025 and the area to the left of z0.025 is 1 - 0.025 = 0.975

Looking at the t distribution table,

z = 2.262

Margin of error = 2.262 × 3.59/√10

= 2.57

the lower limit of this confidence interval is

49.9 - 2.57 = 47.33

the lower limit of this confidence interval is

49.9 + 2.57 = 52.47

So it is false

6 0
3 years ago
If x = 6, find the value of<br> a) X+4<br> b) 3x<br> c)
White raven [17]
A) 6+4 = 10

b) 3(6) = 18
7 0
3 years ago
Other questions:
  • Choose the graph of the function given below.f(x) = 2x+1
    11·1 answer
  • Three students are arguing over who can run the fastest. Student A says that she can run 2/3 mile in six minutes. Student B says
    5·1 answer
  • Does this graph represent a function?​
    8·1 answer
  • The assembly of a machine takes 3/4 hour.there are 12 steps in the assembly process.what is the average time for each step?
    10·1 answer
  • How do i isolate y in 4x - 2y = 22
    9·1 answer
  • A<br> B<br> C<br> D <br> Please help this test is timed
    9·2 answers
  • Which expressions are equivalent to 12a+24b+36?
    15·1 answer
  • PLZ HELP GIVEING BRAINLIST Adam borrowed $17 from his brother on Monday, and then an additional $5 on Tuesday. How much money wi
    13·2 answers
  • Can someone please help me with this, and please only comment if ur sure, Thank you &lt;3
    11·1 answer
  • Help me please please please
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!