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
san4es73 [151]
3 years ago
7

Can someone please help me with this?

Mathematics
1 answer:
Arada [10]3 years ago
4 0

Answer:

x=14

Step-by-step explanation:

Similar shapes have proportional corresponding sides. So,

\dfrac{AB}{PQ}=\dfrac{BC}{QR}=\dfrac{CD}{RS}=\dfrac{DE}{ST}=\dfrac{EA}{TP}

Substitute all lengths:

\dfrac{4}{28}=\dfrac{3}{21}=\dfrac{5}{35}=\dfrac{3}{21}=\dfrac{2}{x}

Therefore,

\dfrac{2}{x}=\dfrac{1}{7}\\ \\x=14

You might be interested in
The weight of baby goats is believed to be Normally distributed, with a mean of 5.75 pounds. The average weight of a random samp
Julli [10]

Answer:

The standard error of the mean is 0.0783.

Step-by-step explanation:

The Central Limit Theorem helps us find the standard error of the mean:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

The standard deviation of the sample is the same as the standard error of the mean. So

SE_{M} = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\sigma = 0.35, n = 20

So

SE_{M} = \frac{\sigma}{\sqrt{n}}

SE_{M} = \frac{0.35}{\sqrt{20}}

SE_{M} = 0.0783

The standard error of the mean is 0.0783.

7 0
3 years ago
PLEASE HELP QUICK!!!!
CaHeK987 [17]

Answer:

The bottom of a river makes a V-shape that can be modeled with the absolute value function, d(h) = 1/5|h - 240| - 48, where d is the depth of the river bottom (in feet) and h is the horizontal distance to the left-hand shore (in feet).

Step-by-step explanation:

8 0
2 years ago
The equation below represents the function p.
svet-max [94.6K]
Answers:

1)Tthe first answer is that as x increases the value of  p(x) approaches a number that is greater than  q (x).


2) the y-intercept of the function p is greater than the y-intercept of the function q.


Explanation:


1) Value of the functions as x increases.


Function p:

p(x)=  ( \frac{2}{5} )^{x} -3

As x increases, the value of the function is the limit when x → ∞.

Since [2/5] is less than 1, the limit of [2/5]ˣ when x → ∞ is 0, and the limit of p(x) is 0 - 3 =  -3.

While in the graph you see that the function q has a horizontal asymptote that shows that the limit of q (x) when x → ∞ is - 4.

Then, the first answer is that as x increases the value of  p(x) approaches a number that is greater than  q (x).


2) y - intercepts.

i) To determine the y-intercept of the function p(x), just replace x = 0 in the equation:
p(x) = [ 2 / 5]⁰ - 3 = 1 - 3 = - 2

ii) The y-intercept of q(x) is read in the graph. It is - 3.

Then the answer is that the y-intercept of the function p is greater than the y-intercept of the function q.

4 0
3 years ago
a minor league baseball team plays 114 games in a season. if the team won 14 more than three times as many games as they lost, h
Rainbow [258]
They will have played with 19 loses 76 wins ! 
7 0
3 years ago
What is 2+2. Im in highschool and this is hard.
Murrr4er [49]

Answer:

4

Step-by-step explanation:

2+2=4

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the statements about the inequality graphed here is INCORRECT?
    10·1 answer
  • Roger is buying a new pair of shoes for 25% off. If the original price of the shoes was $80.00, how much money is Roger saving o
    11·2 answers
  • 6/16 equals 8 over what?
    10·2 answers
  • What does x equal if x-10 divided by x-4 equals 50 divided by -6
    10·1 answer
  • 51, 16, 7, 8, 54, 25, 7, 36, 51 - what is the range?
    6·2 answers
  • Look at the diagram below of rectangle ABCD.
    10·2 answers
  • The top five motor vehicle producers in the world are listed with the number of vehicles produced in 2010 (in thousands of vehic
    6·1 answer
  • A taxi charges $1.75 plus a free of $0.75 for each mile traveled the total cost of a ride without a tip is, $4.75. How many mile
    14·2 answers
  • Find the difference. 8.6 - 0.047
    6·2 answers
  • Plz help me on this qustin. Slove for w 2w ≥ -12
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!