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
slamgirl [31]
3 years ago
11

A number and its opposite is called

Mathematics
2 answers:
Blizzard [7]3 years ago
7 0

Answer: its called a additive inverse

Step-by-step explanation:

Tpy6a [65]3 years ago
7 0

Answer:

the opposite positive number is negative, and the opposite to a negative number is positive.

Step-by-step explanation:

In mathematics, the additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite number, sign change, and negation. For a real number, it reverses its sign: the opposite to a positive number is negative, and the opposite to a negative number is positive.

You might be interested in
Car A used 40.5 L of gasoline to travel 450 km. Car B used 18.7 L to travel 220 km. Circle the car with better fuel mileage. Jus
kvasek [131]

Answer:

Car B has the better fuel economy.

Step-by-step explanation:

Calculate the fuel consumption for the two cars:

Car A:  (450 km) / (40.5 L) = 1.11 km per L

Car B:  (220 km) / (18.7 L) = 1.18 km per L

Car B goes further on one L of gasoline than Car A.  

3 0
2 years ago
A container holds 84 cups of water. How much is this in gallons
kap26 [50]
5.25 gallons is your answer
8 0
3 years ago
Solve for w, where w is a real number.
Ber [7]

Answer:

w= 9

Step-by-step explanation:

\sqrt{ - 4w + 61}  = w - 4

Square both sides:

-4w +61= (w -4)²

\boxed{(a - b)^{2}  = a^2 -2ab + b^2 }

Expand:

-4w +61= w² -2(w)(4) +4²

-4w +61= w² -8w +16

Simplify:

w² -8w +16 +4w -61= 0

w² -4w -45= 0

Factorize:

(w -9)(w +5)= 0

w -9= 0 or w +5= 0

w= 9 or w= -5 (reject)

Note:

-5 is rejected since we are only taking the positive value of the square root here. If the negative square root is taken into consideration, then w= -5 would give us -9 on both sides of the equation.

<u>Why </u><u>do </u><u>we </u><u>use </u><u>negative </u><u>square </u><u>root?</u>

When solving an equation such as x²= 4,

we have to consider than squaring any number removes the negative sign i.e., the result of a squared number is always positive.

In the case of x²= 4, x can be 2 or -2. Thus, whenever we introduce a square root, a '±' must be used.

However, back to our question, we did not introduce the square root so we should not consider the negative square root value.

6 0
2 years ago
Read 2 more answers
Point (k, -3) lies on the line whose equation is x-2y=-2. What is the value of k?
natita [175]

Answer:

Substitute, <em><u>y = -3</u></em> and <em><u>x = k</u></em> on the equation.

=> k - 2×(-3) = -2

=> k = -2 + (-6)

=> k = - 8

=================

<h2>HOPE U UNDERSTOOD</h2><h3>MARK AS BRAINLIEST ONE</h3>

Any Doubts? Please COMMENT

7 0
2 years ago
Eight times the sum of a number and 9 equals 7.
Dominik [7]

Answer:

8(x+9)=7

comment if you need anything else like solving for x

8 0
2 years ago
Other questions:
  • Collins middle school has 222 sixth grade students if the sixth grade is 30% of the total school how many students are in the mi
    5·2 answers
  • What is the least even number you can make with the digits 5 2 7 3 6 4 0?
    8·1 answer
  • A chef has 6 cups of berries and will use 2/3 cup of berries for each serving of fruit salad.how many sevings can be made.
    7·2 answers
  • Evaluate the expression for<br> a = 14, b = 29, c = 1, d = 1:<br> a + b - C-d
    15·2 answers
  • Two construction workers, Tyrone and Diego, are standing 15 yards apart, looking up at a piano hanging between the two men from
    13·1 answer
  • How do i graph x=4
    14·1 answer
  • How do you solve 28-2.2x=11.6x-54.8??
    6·1 answer
  • Please help me answer this
    9·1 answer
  • Solve for x. Round answer to the nearest tenth.<br> 17<br> 54°<br> х
    12·1 answer
  • Mrs. Reynolds has $153. She buys a bicycle for $105.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!