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
matrenka [14]
3 years ago
13

Let n be the first 3 of consecutive even integers. what is the sum of those integers?

Mathematics
1 answer:
spayn [35]3 years ago
3 0
Assuming you meant that n is the first of the 3 even integers

even integers are 2 apart

so the 3 integers are n,n+2,n+4
the sum is n+n+2+n+4=3n+6

the sum is 3n+6
You might be interested in
26/x=-13 <br> I need a false answer and what it would equil
cupoosta [38]
Correct answer:
26 = -13x
X = -2

if you need a false answer, make up any number!
7 0
1 year ago
A patient is instructed to take three 50-mcg tablets of pergolide mesylate (Permax) daily. How many milligrams of the drug would
Black_prince [1.1K]

Answer:

The patient would receive 1.05mg of the drug weekly.

Step-by-step explanation:

First step: How many mcg of the drug would the patient receive daily?

The problem states that he takes three doses of 50-mcg a day. So

1 dose - 50mcg

3 doses - x mcg

x = 50*3

x = 150 mcg.

He takes 150mcg of the drug a day.

Second step: How many mcg of the drug would the patient receive weekly?

A week has 7 days. He takes 150mcg of the drug a day. So:

1 day - 150mcg

7 days - x mcg

x = 150*7

x = 1050mcg

He takes 1050mcg of the drug a week.

Final step: Conversion of 1050 mcg to mg

Each mg has 1000 mcg. How many mg are there in 1050 mcg? So

1mg - 1000 mcg

xmg - 1050mcg

1000x = 1050

x = \frac{1050}{1000}

x = 1.05mg

The patient would receive 1.05mg of the drug weekly.

6 0
3 years ago
What is the circumference of the circle below, in terms of pi?
skad [1K]

Answer:

im pretty sure its D

Step-by-step explanation:

4 0
3 years ago
A student records the number of hours that they have studied each of the last 23 days. They compute a sample mean of 2.3 hours a
natita [175]

Answer:

the standard deviation increases

Step-by-step explanation:

Let x₁ , x₂, .   .   .  , x₂₃ be the actual data observed by the student

The sample means  = x₁  +  x₂  +  .   .   .  , x₂₃ / 23

= \frac{x_1 +x_2 +...x_2_3}{23}

= 2.3hr

⇒\sum xi =2.3 \times 23 = 52.9hrs

let x₁ , x₂, .   .   .  , x₂₃  arranged in ascending order

Then x₂₃ was 10  and has been changed to 14

i.e x₂₃ increase to 4

Sample mean  = \frac{x_1 +x_2 +...x_2_3}{23}

\frac{52.9hrs + 4}{23} \\\\= \frac{56.9}{23} \\\\= 2.47

therefore, the new sample mean is 2.47

2) For the old data set

the median is x_1_2(th) values

[\frac{n +1}{2} ]^t^h value

when we use the new data set only x₂₃ is changed to 14

i.e the rest all observation remain unchanged

Hence, sample median = [{x_1_2]^t^h value remain unchange

sample median = 2.5hrs

The Standard deviation of old data set is calculated

=\sqrt{\frac{1}{n-1} \sum (xi - \bar x_{old})^2 } \\\\=\sqrt{\frac{1}{22}\sum ( xi - 2.3)^2 }---(1)

The new sample standard sample deviation is calculated as

= \sqrt{\frac{1}{n-1} \sum (xi-2.47)^2} ---(2)

Now, when we compare (1) and (2)  the square distance between each observation xi and old mean is less than the squared distance between each observation xi and the new mean.

Since,

(xi - 2.3)²  ∑ (xi - 2.47)²

Therefore , the standard deviation increases

6 0
3 years ago
Which number is 300% of the difference between 23 and 27?
Nata [24]
Your answer is 12

The difference 27 – 23 = 4, and 300% of 4 is 3 times 4, or 12.
7 0
3 years ago
Other questions:
  • Find the missing factor.<br> 8x2 - 15x + 7 = (8x - 7)(<br> )
    7·1 answer
  • For the vector field G? =(yexy+4cos(4x+y))i? +(xexy+cos(4x+y))j? G?=(yexy+4cos(4x+y))i?+(xexy+cos(4x+y))j?, find the line integr
    10·1 answer
  • A video merchant sold 24 cases of tapes, which was 20% of what he had left. What percent of tapes did he sell?
    9·1 answer
  • RSM Question please help will give Brainliest
    8·1 answer
  • Alexander paid seven dollars to park her car for three hours at the parking garage .the garage charge is a constant hourly parki
    6·1 answer
  • <img src="https://tex.z-dn.net/?f=rx%20%2B%209%20%5Cdiv%205%20%3D%20h%20%5C%3A%20solve%20%5C%3A%20for%20%5C%3A%20h" id="TexFormu
    8·1 answer
  • Which graph represents the solution set of y = x2 − 4 and x + y + 2 = 0?
    9·1 answer
  • You ride through some wet paint on your bike, creating a red spot on the tire. Write a cosine equation to model the height of th
    10·1 answer
  • You have only quarters and dimes in your pocket. In total, you have 15 coins. The total value of all of these coins is $3.00. Ho
    7·1 answer
  • PLSSSSS HELP ME<br><br><br><br> X+18+2x+17=17
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!