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
Natalija [7]
2 years ago
12

..............:( halp

Mathematics
1 answer:
Anna [14]2 years ago
4 0

Answer:

a =-5, b= 2.5, 2a= the absloute value of -7 is 7, 2b= the absloute value of 1.8 is 1.8

Step-by-step explanation:

the absloute value is how far away from 0 a number is

You might be interested in
Ms. Davenport's class studied the changes in temperature in math class as a part of their study of rational numbers.
Simora [160]

Answer:

D

Step-by-step explanation:

If it was 6 degrees cooler on Monday than it was on Sunday, but also having Tuesday be 4 degrees warmer than Monday, Wednesday would have to be 2 degrees cooler than Tuesday because it is a number that would comply with the limits  

7 0
3 years ago
Read 2 more answers
For every 6 boxes sold, Stephanie makes a profit of $8.10. Which table shows this same rate of change?
kumpel [21]
The answer is A
The answer is A

4 0
3 years ago
Show 2 different solutions to the task.
laila [671]

Answer with Step-by-step explanation:

1. We are given that an expression n^2+n

We have to prove that this expression is always is even for every integer.

There are two cases

1.n is odd integer

2.n is even integer

1.n is an odd positive integer

n square is also odd integer and n is odd .The sum of two odd integers is always even.

When is negative odd integer then n square is positive odd integer and n is negative odd integer.We know that difference of two odd integers is always even integer.Therefore, given expression is always even .

2.When n is even positive integer

Then n square is always positive even integer and n is positive integer .The sum of two even integers is always even.Hence, given expression is always even when n is even positive integer.

When n is negative even integer

n square is always positive even integer and n is even negative integer .The difference of two even integers is always even integer.

Hence, the given expression is always even for every integer.

2.By mathematical induction

Suppose n=1 then n= substituting in the given expression

1+1=2 =Even integer

Hence, it is true for n=1

Suppose it is true for n=k

then k^2+k is even integer

We shall prove that it is true for n=k+1

(k+1)^1+k+1

=k^1+2k+1+k+1

=k^2+k+2k+2

=Even +2(k+1)[/tex] because k^2+k is even

=Sum is even because sum even numbers is also even

Hence, the given expression is always even for every integer n.

3 0
3 years ago
A spinner with 9 equal sections is numbered 1 through 9. The probability of spinning a 1 or a 9 is 2/9 . What is the probability
shtirl [24]
The probability of NOT getting a 1 or a 9 means you have to subtract those two numbers and how many of each are out. Once you do that, count the remaining numbers, put them as the numerator, and then put the overall total of numbers as the denominator. Your answer is 7/9.
5 0
3 years ago
A shopper bought shoes marked 40$the sales tax is5% how much is the sales tax
irakobra [83]

The sales tax is 2$ Hope this is the answer you're looking for.

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the range of the function f(x) = 3x − 12 for the domain {-2, 2}?
    15·1 answer
  • Factor completely x^8 − 625.
    12·1 answer
  • In the problem, 2x4 - 3x3 - 6x2 + 11x +8 divided by (x - 2), what is the remainder?
    14·1 answer
  • Find the value of x in the equation. 6x+48=60
    8·2 answers
  • Help...............................
    9·1 answer
  • PLEASE HELP! An equilateral triangle has what type of symmetry? A. line symmetry only B. point symmetry only C. both point and l
    11·1 answer
  • Mark all the relative maximum points in the graph.
    13·1 answer
  • HELPPPP PLSSSS ANSEERRRRRJSJSJSS PLSSS HELPPPPPE
    8·2 answers
  • Name the slope of the line that is perpendicular to 3y-4x=5
    15·2 answers
  • How do you do this then? (higher tier maths GCSE)​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!