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
Dmitry_Shevchenko [17]
3 years ago
13

If a and bare negative, then a + b is also negative.

Mathematics
1 answer:
Alex Ar [27]3 years ago
7 0

Step-by-step explanation:

Example: -2+-5

It can also be written as -2-5.

How I do these problems, I do 2+5, which is 7. Then I add a negative sign. So -2+-5 or -2-5 is equal to -7.

-a+-b can also be written as -a-b. So yes, if a and bare negative, then a + b is also negative.

hope it helps!

You might be interested in
A. A car is marked down by 20%. It normally sells for $20,000. What is the sale
Novay_Z [31]

Answer:

A=16000  B=16400

Step-by-step explanation:

1.  You multiply 20,000 by .2 or 20%, because you are trying to find a part of the 20,000.

2. You get 4,000 dollars, that is 20% of 20,000. To find the sale price, you take the 20% away from 20,000, which would be 16,000 dollars. That would be your answer for the first part.

3. the sales tax is 2.5% of the sale price. Again, you multiply 16,000 dollars, your sales price, by .025 or 2.5%.

4. you would get 400 dollars. You add the 2.5% or 400 dollars because you have to pay the tax as well as the price. You would get 16,400 dollars.

6 0
3 years ago
Select three side lengths, in centimeters (cm), that can form a right triangle. Use the Pythagorean Theorem.
lawyer [7]

Answer:

Hey there!

You can make a right triangle by the sides 6, 8, and 10. The most famous pythagorean triplet is the 3, 4, 5 triangle. Increasing the size of this triangle by a scale factor of 2 makes the sides 6, 8, and 10.

Hope this helps :)

8 0
3 years ago
Pls help me 20 points
horsena [70]

Answer: 36

Step-by-step explanation:

-3 to the power of -2 is 9

2 to the power of 1 is 4

when you multiply that u get 36

3 0
3 years ago
Guys I need help on all three please​
kodGreya [7K]

Answer:

graph 1 proportional

graph 2&3 is non proportional

i think

6 0
3 years ago
If y varies directly with x. and y=10 when x=5.6, find the value of y when<br> X=3
Nady [450]

Answer: 5.3571

Step-by-step explanation:

The formula used to calculate direct proportion is: y = kx

We will find the constant of proportionality when y=10 and x=5.6. This will be:

y = kx

10 = 5.6k

k = 10/5.6

k = 1.7857143

The value of y when X=3 will be:

y = kx

y = 1.7857143 × 3

y = 5.3571

3 0
3 years ago
Other questions:
  • A car travels 308 miles in 5 hours and 30 minutes. how many miles does it travel per hour?
    9·1 answer
  • What is the answer to the question
    11·1 answer
  • Is the following relation a function ? S = {(1,2),(2,2),(-2,2)} justify your answer
    11·1 answer
  • You drive 351.6 miles using 16.4 gallons of gasoline. At this rate, how many gallons of gasoline would you need to drive 1000 mi
    8·1 answer
  • Find an explicit formula for the arithmetic sequence 81,54, 27,0
    9·1 answer
  • True or false dilations always increase the length of time segments ​
    11·1 answer
  • -3 (-5x - 7) <br> Use the Distributive Property to rewrite the expressions without parentheses.
    8·2 answers
  • Write a recursive formula for the sequence 2,-4,8,- 16,<br> PLEASE HELP ASAP!!!!!!!!
    8·1 answer
  • A regular tank measuring 30 cm by 10 cm by 20 cm is 2/3 filled with water. Calculate the volume of water in the tank in litres.
    14·1 answer
  • Please help now, I will give Brainliest!!! :D
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!