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
Elina [12.6K]
3 years ago
7

Explain the reasoning please

Mathematics
2 answers:
Svet_ta [14]3 years ago
7 0

Step-by-step explanation:

Something to keep in mind is that anything greater than 0 is positive and anything less than 0 is negative

a is to the right of 0 and 1 making it a positive number

b is to the left of 0 making is a negative number

A. a is greater than 1 and b is a negative number

negative number * positive number = negative number

We already know that a is greater than 1 so ab has to be much less than -1 making ab+1 a negative expression

B. Looking at the number line, you can tell that the distance between 1 and a is a bit less than the distance between 0 and 1

This means that a= 1.x not 2

Because of this, a-2 is negative

C. -b

b is a negative number which means that -b would be positive

D. a+b

Looking at the number line, you can tell that the distance between 0 and a is less than the distance between 0 and b

Therefore, a+b is negative

E. a-b

Since b is already negative, the expression would simplify to two positive numbers being added

This means that a-b can't be negative

F. a-1

The number line shows us that a is greater than 1, therefore, a minus 1 would be positive

I hope this helps in some way or another

zvonat [6]3 years ago
3 0
A minus one would be positive
You might be interested in
6. What is the greatest common factor of 12wr2 + 6wr – 6w ?
balandron [24]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
Find an expression equivalent to 1-sinx ^2/1-cosx ^2
madam [21]

Answer:

cot²x

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1, then

1 - sin²x = cos²x

1 - cos²x = sin²x

Thus

\frac{1-sin^2x}{1-cos^2x} = \frac{cos^2x}{sin^2x} = cot²x

8 0
3 years ago
Which equations represent the line that is perpendicular to the line 5x − 2y = −6 and passes through the point (5, −4)? Check al
natka813 [3]
Find the slope of the line first:
5x - 2y = -6,
y = (5/2)x + 3;
Since we need a line that's perpendicular, m = - (2/5).

The only equation that has the slope of this m is 2x + 5y = -10;
8 0
3 years ago
Read 2 more answers
Boubacar has a deck that measures 3 feet by 14 feet. He wants to increase each
Serggg [28]

Answer:

4

Step-by-step explanation:

(3 × 14) × 3 = 126

7 × 18 = 126

7 0
2 years ago
For what value of a does<br> (9) ***<br> = 3438-1<br> -1<br> 0<br> 1<br> no solution
mario62 [17]

Answer:

<h2>0</h2>

solution,

(\frac{1}{7} ) ^{3a + 3}  =  {343}^{a - 1}  \\ or \: ( {7}^{ - 1} ) ^{3a + 3}  =  {(7}^{3} ) ^{a - 1}  \\ or \: (7) ^{ - 3a - 3}  =  {(7)}^{3a - 3}  \\ or \:  - 3a - 3 = 3a - 33 \\ or \:  - 3a - 3a =  - 3 + 3 \\ or \:  - 6a =  0 \\  \: a = 0

hope this helps..

Good luck on your assignment..

3 0
3 years ago
Other questions:
  • In 2 weeks Simone gets 46 emails. at the same rate, how many weeks will it take for her to get 115 emails
    12·1 answer
  • Where is the number 3 − 6 located on a horizontal number line? 3 units to the left of 3 3 units to the right of 3 6 units to the
    9·1 answer
  • Suppose you have entered an 85​-mile biathlon that consists of a run and a bicycle race. during your​ run, your average velocity
    7·1 answer
  • 14 is no less than 8 times a number x plus 6.<br><br> An inequality is ?
    12·1 answer
  • Why is the library not adding any more fairy tales
    5·2 answers
  • Please help i dont know how to solve
    10·1 answer
  • Create 2 new equivalent fractions by multiplying the numberator and denominator of the given fractions by a non-zero number.​
    6·1 answer
  • Which relation is a function ?
    13·2 answers
  • 1) State the area of the given trapezoid.
    12·1 answer
  • Solution for y=1/3x+2 and x=9
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!