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
wlad13 [49]
3 years ago
12

Suppose A and B represent two different school populations where A > B and A and B must be greater than 0. Which of the follo

wing expressions is the largest? Explain why. Show all work necessary.
A: 2(A + B)
B: (A + B)2
C: A2 + B2
D: A2 − B2
Mathematics
1 answer:
Virty [35]3 years ago
6 0
<span>A+B)^2 is the largest.  It is A^2+2AB+B^2, which is clearly greater than the last two options.  To compare (A+B)^2 and 2(A+B), we remove one A+B so that we're just comparing A+B and 2.  As A+B must be at least 3 (as both must be positive integers, and one must be greater than the other, leading to a minimum value of A=2, B=1), A+B is greater than 2, and as a result, (A+B)^2 is always the largest.</span>
You might be interested in
A man is lying on the beach, flying a kite. He holds the end of the kite string at ground level and estimates the angle of eleva
Ulleksa [173]
This question uses trig

sin(55) = height/195

Therefore, height = 195sin(55) meters (just plug in calculator)
7 0
2 years ago
Which correlation coefficient represents a moderate negative correlation? r = –0.04 r = –0.24 r = –0.64 r = –0.94
fomenos

The correlation coefficient is a number that indicates the direction

and closeness of points of a line of best of fit.

So it tells us two things.

It tells us the direction of the line of best fit

and it tells us the closeness of the points.

Usually, anything between -0.9 and -0.6 has a moderate negative correlation. If you look at this on a graph, you will notice that the points definitely resemble a line so we say it's moderate.

It will be a negative correlation because the slope is negative.

5 0
3 years ago
Read 2 more answers
In (circle)A, m∠BAD = 110. Find mDE.
Veseljchak [2.6K]

Answer:

Line BE = 180 degrees

Therefore, angle BAD + angle DAE = 180 degrees

Angle DAE = 180 -110 = 70 degrees

Step-by-step explanation:

7 0
2 years ago
Use the quadratic formula to find the solutions for..<br> y = 2x^2 - 9x + 5.
Yakvenalex [24]

Answer: x=\frac{9}{4}-\frac{\sqrt{41} }{4}  \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}

Step-by-step explanation:

2x^2-9x+5

a=2

b=-9

c=5

x=\frac{-b\frac{+}{}\sqrt{b^2-4ac}  }{2a}

x=\frac{-(-9)\frac{+}{}\sqrt{(-9)^2-4(2)(5)}  }{2(2)}

x=\frac{9\frac{+}{}\sqrt{81-40}  }{4}

x=\frac{9\frac{+}{}\sqrt{41}  }{4}

x=\frac{9}{4}-\frac{\sqrt{41} }{4}  \\x=\frac{9}{4}+\frac{\sqrt{41} }{4}

4 0
3 years ago
Find the number of all 20 digit integers in which no two consecutive digits are the same
Arturiano [62]
For the first digit of the required 20-digit number, we can have 9 choices for the number, those are the digits 1 to 9. In the second digit of the number, we will only have 8 choices. That is because, we don't want to write a number in the second digit that is similar to the first digit and the third digit.

Similarly, in the third digit's place, we will only have 8 choices because we do not want the digit to be similar to the second digit and the fourth digit. This will go on up until the 19th digit. In the 20th digit, we will also have 9 choices (from 0-9) but we do not want the digit to be similar to the 19th digit. 

From the explanation given above, we have the number of ways,

    n = 9 x 8^(19 - 1) x 9  = 1.459 x 10^18

<em>ANSWER: 1.459 x 10^18</em>
5 0
3 years ago
Other questions:
  • 3. Find the smallest number of sweets that
    6·1 answer
  • Operations with complex numbers pls helppp
    14·1 answer
  • If 2^5/2^a= 2^2, then a=
    13·1 answer
  • Which type of proof uses boxes and arrows to show the logical connections between statements?
    14·2 answers
  • What does generalization mean in math
    11·1 answer
  • What is the probability that a point chosen inside the large rectangle is not in the shaded region?
    15·1 answer
  • HELP ME PLEASEEE this is past due
    9·1 answer
  • Is the ordered pair given a solution to the equation.
    9·1 answer
  • Solve the system of linear equations by graphing. Check your solution.
    8·1 answer
  • Peter worked 2 part-time jobs and earned $189.00 for working a total of 24 hours at both jobs. He is paid $6.00 per hour at Job
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!