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
maxonik [38]
2 years ago
10

What are two numbers that add together to make -7 and that multiply to make 6

Mathematics
2 answers:
Virty [35]2 years ago
7 0

Answer:

These two numbers are <em>-1 and -6 </em>respectively.

Step-by-step explanation:

Suppose first number is x and the second number is y.

Then according to question-

( x + y ) = -7 ..............................(i)

x × y  =  6 ................................(ii)

As we know that-

<em>(x - y)^{2} =  (x + y )^{2}  - 4 x y .......................(iii)</em>

Now, Putting values of equation (i), (ii)  in equation (iii)-

We get,

( x - y )^{2} =  ( - 7 )^{2}  - 4 × 6

( x - y )^{2} = 49 - 24

( x - y )^{2}  = 25

( x - y ) = \sqrt{25}

( x - y ) = 5<em>..........................(iv)</em>

After adding equation (i) and (iv)-

( x + y ) = -7

<u>( x - y ) =  5</u>

<u> 2 x = -2</u>

x = -2 /2

<em>x = -1 </em>

Now put x = -1 in equation (i)-

We get,

y = -7 - x

y = -7 - (- 1)

y = - 7 + 1

y = -6

        <em>Hence the both numbers x and y are -1, -6 respectively.</em>

kumpel [21]2 years ago
4 0
-2 and -4 this is the answer
You might be interested in
N 2+ 6n - 16 = 0<br> Solve equation by factoring.
Naily [24]

Answer:

N = -3n+8 Brainlist please :)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
2,10,18,26 find the 61st term
saw5 [17]

Answer:

482

Step-by-step explanation:

We can see that the numbers shown resemble an arithmetic sequence because they have a common difference. The formula for the nth term of an arithmetic sequence is:

a_{n} =a_{1} +(n-1)d

Where a_{1} is the first term, a_{n} is the nth term, and d is the common difference. To find the 61st term, all we need is the first term and the common difference. By looking at what given, we can say the first term is 2. Now, to find the common difference, we find the difference of a term from the term before it. In this case we can do 10-2, which is 8 , or the common difference. Since we have everything we need, it can be plugged into the equation:

a_{61} =2 + (61 - 1)*8\\a_{61} = 2 + 60*8\\a_{61} = 2 + 480\\a_{61} = 482

So, the 61st term is 482.

4 0
2 years ago
In 1995 a gallon of gas used to cost $1.00 today a gallon of gas cost $4.00 what is the percent increase?
Wittaler [7]

Answer:

300%

Step-by-step

300% of 1.00$ is 4.00 because you are adding 1.00 + 300%

5 0
2 years ago
Read 2 more answers
I need help on finding an equation!?
Sedbober [7]

Your distance from Seattle after two hours of driving at 62 mph, from a starting point 38 miles east of Seattle, will be (38 + [62 mph][2 hr] ) miles, or 162 miles (east).

Your friend will be (20 + [65 mph][2 hrs] ) miles, or 150 miles south of Seattle.

Comparing 162 miles and 150 miles, we see that you will be further from Seattle than your friend after 2 hours.

After how many hours will you and your friend be the same distance from Seattle?  Equate 20 + [65 mph]t to 38 + [62 mph]t and solve the resulting equation for time, t:

20 + [65 mph]t  = 38 + [62 mph]t

Subtract [62 mph]t  from both sides of this equation, obtaining:

20 + [3 mph]t = 38.  Then [3 mph]t = 18, and t = 6 hours.

You and your friend will be the same distance from Seattle (but in different directions) after 6 hours.

7 0
3 years ago
Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems
Romashka [77]

Answer:

Cross multiplying fractions helps us to see if numbers are equal, and if not, which is bigger and which is smaller. But that is not its only use. Cross multiplying fractions can help us to solve for unknown variables in fractions.

Step-by-step explanation:

3 0
1 year ago
Read 2 more answers
Other questions:
  • Write 7,380,000,000 in scientific notation. A. B. C. D.
    15·2 answers
  • Use the stem-and-leaf plot of Monthly Sales Goals to answer the question that follows.
    11·1 answer
  • Gavyn drives at a speed of 50 miles per hour.<br>How long will it take to drive 225 miles?
    5·1 answer
  • Please help me with this question
    7·2 answers
  • 1/3m + L is greater than or equal to 8 <br><br> solve the inequality for L
    12·1 answer
  • the sum of a number and 9 is multiplied by -2 and the answer is 8 find the number. I know the answer is -5 i need a expression,
    5·1 answer
  • 1 ½ - 6/10 =<br> HELP PLS
    8·1 answer
  • During his visit to London, George Orwell decided to ask everyone he talked to whether or not the cameras made them feel more se
    5·2 answers
  • BRAINIEST TO WHOEVER RIGHT
    12·1 answer
  • There are 1 1/3 pounds of bricks in a bag. Each brick weighs 2/3 of a pound. How many
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!