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
iogann1982 [59]
3 years ago
9

Hey guys please answer if you know​

Mathematics
2 answers:
jonny [76]3 years ago
6 0

Answer:

19

Step-by-step explanation:

note that

(a + b)² = a² + b² + 2ab , that is

a² + b² + 2ab = (a + b)² ← subtract 2ab from both sides

a² + b² = (a + b)² - 2ab

           = 5² - 2(3)

           = 25 - 6

          = 19

Monica [59]3 years ago
3 0

Answer:

19

Step-by-step explanation:

since value of both a+b and a*b are given

formula for a^2 + b^2 is (a+b)^2-2*a*b

Substituting those value,

a^2+b^2=5^2-2*3

i.e. 25-6

=19

You might be interested in
What is the slope of a line parallel to the line whose equation is 4x + 5y = -35.
saw5 [17]

Answer:

y = -4/5x + 5

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

Step 1: Write equation in slope-intercept form

5y = -35 - 4x

y = -7 - 4/5x

Step 2: Write parallel line equation

y = -4/5x + 5

A parallel line is a line that has the same slope as the previous equation but a different y-intercept. They never intersect.

3 0
3 years ago
The sides of a hexagon are equal in length. The perimeter of the hexagon is at most 42 in. Find the possible side lengths of the
lidiya [134]
42/number of sides in a hexagon
42/6
7 in

Hope this helps!
7 0
3 years ago
Please help! Giving brainliest
lianna [129]

Answer:

5y^2-12y+21-73/2y+3

6 0
2 years ago
(1 point)
san4es73 [151]

Answer:

Step-by-step explanation:

2x - 9y = 23

5x - 3y = -12x - 9y = 23

5x - 3y = -1

7 0
3 years ago
complete the concept map by naming the sampling that you have learned in this module then briefly discuss each
Dmitry [639]

In systematic sampling, individuals are selected at regular intervals from the sampling frame.

<h3>How to explain the sampling?</h3>

Stratified sampling- In this method, the population is first divided into subgroups (or strata) who all share a similar characteristic

<u>Clustered sampling.</u>- a clustered sample, subgroups of the population are used as the sampling unit, rather than individuals. The population is divided into subgroups, known as clusters, which are randomly selected to be included in the study

<u>Simple random sampling. </u>-In this case each individual is chosen entirely by chance and each member of the population has an equal chance, or probability, of being selected.

Quota sampling--This method of sampling is often used by market researchers. Interviewers are given a quota of subjects of a specified type to attempt to recruit.

Learn more about sampling on:

brainly.com/question/17831271

#SPJ1

6 0
2 years ago
Other questions:
  • Find the value of x in the equation below. 3x = 18
    10·2 answers
  • Below are the jersey numbers of 11 players randomly selected from a football team. Find the range, variance, and standard deviat
    14·1 answer
  • The distance from the center of a round table top to the edge of the table top is 4 ft. What's the area of the table top? A. 50.
    10·1 answer
  • Jacob cut a rectangular piece of wrapping paper to wrap his brother's gift. The piece of wrapping paper had a perimeter of 50 in
    15·1 answer
  • Luke’s that seven pieces of wood on top of one another if each piece was 4/8 of a foot tall how tall was his pile
    15·1 answer
  • A rational number can be written as the ratio of one blank to another and can be represented by a repeating or blank decimal
    12·2 answers
  • What kind of transformation is illustrated in this figure?
    10·1 answer
  • Please help i have to turn in in 8 mins....thanks :)
    15·2 answers
  • 11. There are 600 students in a school. If 20% students are girls, find the number of girls.​
    13·2 answers
  • Brenda was going to sell all of her stamp collection to buy a video game after selling half of them she changed her mind she the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!