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
nasty-shy [4]
3 years ago
15

The width of a rectangle varies directly as it’s length. What is the perimeter of a rectangle that is 15 inches long?

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
4 0
45 because, the short side is half of the big size. That might be correct. But I'm almost positive
You might be interested in
The management of a relatively new social networking website named BooglePlus is conducting a pilot study comparing use of its o
zavuch27 [327]

Answer:

0.0623 ± ( 2.056 )( 0.0224 ) can be used to compute a 95% confidence interval for the slope of the population regression line of y on x

Step-by-step explanation:

Given the data in the question;

sample size n = 28

slope of the least squares regression line of y on x or sample estimate = 0.0623

standard error = 0.0224

95% confidence interval

level of significance ∝ = 1 - 95% = 1 - 0.95 = 0.05

degree of freedom df = n - 2 = 28 - 2 = 26

∴ the equation will be;

⇒ sample estimate ± ( t-test) ( standard error )

⇒ sample estimate ± ( t_{\alpha /2, df) ( standard error )

⇒ sample estimate ± ( t_{0.05 /2, 26) ( standard error )

⇒ sample estimate ± ( t_{0.025, 26) ( standard error )

{ from t table; ( t_{0.025, 26) = 2.055529 = 2.056

so we substitute

⇒ 0.0623 ± ( 2.056 )( 0.0224 )

Therefore, 0.0623 ± ( 2.056 )( 0.0224 ) can be used to compute a 95% confidence interval for the slope of the population regression line of y on x

5 0
3 years ago
Find the equation of the exponential function represented by the table below: above^^^^
Nikitich [7]

Answer:

Step-by-step explanation:

We will use 2 coordinates from the table along with the standard form for an exponential function to write the equation that models that data. The standard form for an exponential function is

y=a(b)^x where x and y are coordinates from the table, a is the initial value, and b is the growth/decay rate. I will use the first 2 coordinates from the table: (0, 3) and (1, 1.5)

Solving first for a:

3=a(b)^0. Sine anything in the world raised to a power of 0 is 1, we can determine that

a = 3. Using that value along with the x and y from the second coordinate I chose, I can then solve for b:

1.5=3(b)^1. Since b to the first is just b:

1.5 = 3b so

b = .5

Filling in our model:

y=3(\frac{1}{2})^x

Since the value for b is greater than 0 but less than 1 (in other words a fraction smaller than 1), this table represents a decay function.

4 0
3 years ago
Porfavooor ayudaaaaaa ​
Kruka [31]

Answer:

iqkiqiqiqiqiqkiqiigg

6 0
3 years ago
Of the choices below, what is the best estimate of the speed of the milk van?
galben [10]

Answer:

A. 77 kilometers per hour

Step-by-step explanation:

Speeds of vehicles are normally calculated in kilometers per hour, meters per hour is too small the measurement and millimeters is even smaller.

7 0
3 years ago
5.- En una canasta hay 60 duraznos. Evelyn los va
maksim [4K]

Answer: Quedarían nueve

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help I need this rn please help ASAP picture included awnser as many s you want
    9·1 answer
  • How many 4-digit numbers can be formed using the numbers 4, 5, 6 and 7? How many of the 4-digit numbers are less than 7000?
    10·1 answer
  • the first week of January there are 48 dogs and 28 cats in the animal shelter. Throughout the month the ratio of dogs to cats re
    8·1 answer
  • Which expression is equivalent? 8(3x − 6) A) 24x + 48 B) 24x − 48 C) −24x + 48 D) −24x − 48
    13·2 answers
  • Please what is the answer?
    15·1 answer
  • Find the area of the shape.
    14·1 answer
  • Please solve for x and explain every step in detail!!! it’s urgent
    6·1 answer
  • Hernando ate 2/8 of a pizza for a dinner. he gave his 6 friends the rest of the pizza, and told them to share equally. To determ
    6·2 answers
  • What is an explicit formula for the following recusive formula an=an-1+7;a1=2
    15·1 answer
  • Triangle ABC has vertices A(2,0), B(6,0) and C(4,5). Prove that the triangle is isosceles and ​not​ a right triangle
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!