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
galben [10]
3 years ago
12

Evaluate a2+ab-b2+5 when a=2 and b=3

Mathematics
2 answers:
trapecia [35]3 years ago
8 0
A=2, b=3
if you have an algebra like 2a, it means a×2

a2+ab-b2+5
=2×2+2×3-3×2+5
=4+6-6+5
=4+5
=9

answer=9
adelina 88 [10]3 years ago
6 0
So 22+23-32+5 ( 22+23=45 ) 45+32=77+5=82 So The Answer Is 82 . 
Just Add . 
You might be interested in
15 POINTS PLS ANSWER! A bagel shop sells bagels by the half dozen. The table at the right shows the number of bagels a shop give
jeyben [28]

Answer:

Step-by-step explanation:

y=6x

Dozen=12

Half of a Dozen= 12/2=6

Every half dozen has to be 6 so x would denote that

5 0
3 years ago
Read 2 more answers
High population density can cause increased competition for resources such as food or shelter, while a low population density ca
krek1111 [17]

Answer:

The region with the highest population density is Binky Lee

The region with the lowest population density is Cheslen

Step-by-step explanation:

we know that

The <u><em>population density</em></u> is the number of people per unit of area

so

Find out the population density for each region

<em>Bear Creek</em>

\frac{462}{112}= 3.70\ people/acre

<em>Binky Lee</em>

\frac{12,624}{3,412}= 4.13\ people/acre

<em>Cheslen</em>

\frac{3,537}{1,263}= 2.80\ people/acre

<em>Crow's Nest</em>

\frac{2,142}{612}= 3.5\ people/acre

so

Cheslen < Crow's Nest < Bear Creek < Binky Lee

therefore

The region with the highest population density is Binky Lee

The region with the lowest population density is Cheslen

4 0
3 years ago
Read 2 more answers
Calculate simple interest earned on a deposit of $500 at a rate of 5% for 5 years. $125 $500 $625 $12,500
Sergio [31]

Answer:

$125

Step-by-step explanation:

Given:

deposit, P=  $500

rate,i =  5%

time,t= 5 years

I=P*i*t

where P is principal amount

i is interest rate

t is time

I is simple interest

Putting values we get:

I=500*0.05*5

 = 125 !

8 0
3 years ago
Read 2 more answers
If 5x-26=x+50, then the value of x is
horsena [70]
Let's work this problem out!

First: 5(x) - 26 - x + 50 = ? 

Second: 4(x) - 76 = ? 

Third: 4 = ? 
          ↑
(Solve Step 3) 

Fourth: x - 19 = 0 
                   ↑
(Add the number 19 to each of your sides for Step 4)

Finally we get to your answer

19 + 0 = 19 ; 19 - 19 = 0

So, therefore the value of "x" is 19 

x = 19
3 0
3 years ago
Please help me with these questions
Jlenok [28]
Posted 5 days ago no need for an answer now.

3 0
3 years ago
Other questions:
  • Would you expect the probability for the simple event "rolling a 6" to be greater than or less thanthe probabilty of the event "
    10·1 answer
  • Albert multiplied a whole number by a fraction. The whole number is greater than one. The fraction is greater than zero and less
    6·1 answer
  • Which statement about numbers on the horizontal number line is true?
    8·2 answers
  • The answer and how to do it.
    5·1 answer
  • Helppppppp mathhhhhhhhh
    8·1 answer
  • Find the volume of each prism.<br>4 in.<br>3 in.<br>7 in.​
    9·1 answer
  • HELP PLEASE! FOR EACH RELATION, DECIDE WHETHER OR NOT IT IS A FUNCTION.​
    10·1 answer
  • Each card in a set of cards has a different number from 1 to 12 written
    14·1 answer
  • Anyone ?? Know the answers to these both? Due tmr morning
    13·1 answer
  • Jaxon paid for 6 pounds of meat to be delivered.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!