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
tekilochka [14]
3 years ago
13

Hey can you please help me

Mathematics
1 answer:
anygoal [31]3 years ago
8 0

Answer:

C


Step-by-step explanation:

General Form of an equation of a line is given by:  y=mx+b

Where,

m is the slope, and

b is the y-intercept (point where line cuts the y-axis)

Also, parallel lines have equal slopes.


Equation of first plane is given as  d=3.67t+4.81

Comparing this with general form of a line, we see that 3.67 is the slope and 4.81 is the y-intercept.

<em>The </em><em>second plane </em><em>is going </em><em>parallel</em><em> to this. So slope should be same. Hence </em><em>second plane has slope of 3.67. </em><em>We can write:</em>

<em>d=3.67t+c</em>


<u>To find the equation of second plane</u>, we need to solve for c. Also, a point given for second plane is (t=0, d=2.14) , substituting these values into the equation we got, we get the value of c:

2.14=3.67(0)+c\\2.14=0+c\\c=2.14


We already know m and now we know c, so we can write final equation as:

d=3.67t+2.14

Answer choice C is right.

You might be interested in
A small town has 2000 families. The average number of children per family is mu = 2.5, with a standard deviation sigma = 1.7. A
Nikitich [7]

Answer:

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

Let X the random variable that represent the number of children per fammili of a population, and for this case we know the following info:

Where \mu=2.5 and \sigma=1.7

We select a sample of n =64 >30 and we can apply the central limit theorem. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And for this case the standard error would be:

\sigma_{\bar X} = \frac{1.7}{\sqrt{64}}= 0.2125

6 0
3 years ago
Can anybody help me thank you
IceJOKER [234]
Remember that you can convert percentages to decimals by dividing them by 100.

You can convert decimals to percentages by multiplying them by 100.

Here are my answers:
11.

(a) 55% < 0.75

(b) 0.23 < 28%

(c) 74% > 0.70

(d) 1/2 < 2/3

(e) 3/4 < 7/8

(f) 3/5 > 2/11
8 0
3 years ago
Read 2 more answers
Twice the sum of a number plus 4 is 26. Find the number
telo118 [61]
2(x+4)=26
2x+8=26
2x=14
X=7
8 0
3 years ago
What's the property of 8x-1=-8 i DON'T NEED THE ANSWER JUST THE PROPERTY
Helga [31]

Probably the property of subtraction.

-TTL

4 0
3 years ago
Write each decimal as a fraction or mixed number in simplest.<br> -0.15= -7.75= -12.54=
vladimir1956 [14]

-0.15 = -15/100 = -3/20

-7.75 = -7 3/4

-12.54 = -12 54/100 = -12 27/50

5 0
3 years ago
Read 2 more answers
Other questions:
  • A bag holds 1 blue block and 3 yellow blocks. How many green blocks should be added to the bag to make the probability of random
    14·1 answer
  • Carlos has a square tablecloth with a total area of 48 square feet. Wich measurement is closest to the lenght of each side of th
    8·2 answers
  • A school group is helping plant a new city garden. Today they used 12 1/2 pounds of potting soil and planted 2/5 of the garden.
    6·1 answer
  • Two stores offer differently priced sales for the same paper towels, according to the table below. Which store offers the better
    13·1 answer
  • Which is the graph of g(x)?
    14·1 answer
  • Find the fourth term of a geometric sequence if a=6 and r=2. Use the formula an=ar^n-1
    11·1 answer
  • NEED ANSWER ASAP!!!
    7·1 answer
  • Write the Slope-Intercept and Point-Slope forms of the line passing through the point (-3, 2) and having a slope of -4/5
    5·1 answer
  • Hey good morning please help
    5·1 answer
  • If you can solve all parts I will give brainliest (also give strategy)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!