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
vampirchik [111]
3 years ago
8

9-(-9) How do you show your work for this question?

Mathematics
2 answers:
Marta_Voda [28]3 years ago
8 0

Answer: the answer is 18

Step-by-step explanation:

It is a double negative so just show below this equation

9-(-9)

9+9. Because of double negative

18

statuscvo [17]3 years ago
4 0
Since there are two subtraction symbols they turn into a plus sign. 9+9=18.
You might be interested in
Alex needs to varnish the top And the bottom of a dozen rectangular wooden planks planks are 8 feet long and 3 feet wide each pi
meriva

Answer:

It will cost approximately $16.12 to varnish all the wooden planks.                                            

Step-by-step explanation:

We are given the following in the question:

Number of rectangular planks = 12

Dimension of the rectangular wooden plank:

Length = 8 feet

Width = 3 feet

Area covered by I bottle of varnish = 125 Square feet

Cost of 1 bottle of varnish = 3.50 units

Area of 1 rectangular plot =

A = \text{Length}\times \text{Width}\\A = 8\times 3\\A = 24\text{ square feet}

Total area to be covered by varnish =

= \text{Area of 1 plank}\times 12\times \text{Top area and bottom area}\\=24\times 12\times 2\\=576

Number of varnish bottles required =

n = \dfrac{\text{Total area}}{\text{Total area covered by 1 varnish bottle}} = \dfrac{576}{125} = 4.608

Cost of varnishing =

=\text{Cost of 1bottle of varnish}\times \text{Number of varnish bottles}\\=4.608\times 3.50\\=\$16.12

Thus, it will cost approximately $16.12 to varnish all the wooden planks.

6 0
3 years ago
Kayla was asked to rewrite the polynomial expression x ^ 2 + 5x + 9 she rewrite the polynomial ? How could she rewrite with the
ahrayia [7]

Answer:

x²+6x+9

x²+3x+3x+9

x(x+3)+3(x+3)

=(x+3)(x+3)

8 0
3 years ago
How do I make a ten to find the sum
Naddika [18.5K]
Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or ...
5 0
3 years ago
Read 2 more answers
What is (5.03x -8.03) - (3.5x +6.2)?
Kryger [21]

Answer:

1.53x−14.23

Step-by-step explanation:

<em>simplify: </em>

5.03x−8.03−(3.5x+6.2)

<em>Distribute the Negative Sign:</em>

=5.03x−8.03−1(3.5x+6.2)

=5.03x−8.03−1(3.5x)+(−1)(6.2)

=5.03x−8.03−3.5x−6.2

<em>Combine Like Terms:</em>

=5.03x−8.03+−3.5x−6.2

=(5.03x−3.5x)+(−8.03−6.2)

=1.53x−14.23

4 0
2 years ago
Read 2 more answers
You roll a number cube 20 times. Which scenario is least likely?
BigorU [14]

Answer:

you won't roll the same number 5 times

7 0
3 years ago
Other questions:
  • Lamp is reduced from $80. to $50. what is the percent of decrease
    11·1 answer
  • Some one knows how doing this​
    12·1 answer
  • In this problem, we explore the effect on the mean, median, and mode of adding the same number to each data value. Consider the
    13·1 answer
  • FIND THE RADIUS OF A CIRCLE WHO'S DIAMETER IS40 FEET
    7·2 answers
  • Alison has 8 pairs of pants and 12 shirts in her closet. She also has 7 pairs of shoes. How many different outfits can she wear?
    12·2 answers
  • calculate the amount that will be in the bank after 4years if R3500 was invested at 9% p.a. simple interest​
    6·1 answer
  • Marcus is rewriting a polynomial by combining like terms. Which terms does he still need to combine to finish rewriting the poly
    13·1 answer
  • PLZ DON'T JUST TAKE POINTS I WILL REPORT YOU
    9·1 answer
  • Write an expression for the caculation the diffrence of the products of 5 and 2 and 5 and 1
    12·1 answer
  • The measure of arc b a c is 240. What is the ratio of the measure of the major arc to the measure of the minor arc?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!