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
ddd [48]
3 years ago
9

The sum of two numbers is -17. Their difference is 41. Find the numbers

Mathematics
1 answer:
Alex787 [66]3 years ago
3 0

Answer:

x = 12

y = -29

Step-by-step explanation:

Our given equations: x + y = -17 and x - y = 41

Solve for x and substitute.

x = -17 - y

(-17 - y) - y = 41

-17 - 2y = 41

2y = -58

y = -29

Solve for x using y

x + (-29) = -17

x = 12

You might be interested in
Find the value of c that makes the trinomial a perfect square trinomial.<br> m^2-14m+c
Pie

Answer:

49

Step-by-step explanation:

m^2-14m+c

Take the -14

Divide by 2

-14/2 = -7

Square it

(-7)^2 = 49

Add it to each side

m^2-14m+49

The value of c is 49

6 0
3 years ago
Please help! A-level maths.
astra-53 [7]

x+y=k\implies y=k-x

Substitute this into the parabolic equation,

k-x=6-(x-3)^2\implies x^2-7x+(k+3)=0

We're told the line x+y=k intersects C twice, which means the quadratic above has two distinct real solutions. Its discriminant must then be positive, so we know

(-7)^2-4(k+3)=49-4(k+3)>0\implies k

We can tell from the quadratic equation that C has its vertex at the point (3, 6). Also, note that

-1\le\sin t\le1\implies3\le3+2\sin t\le5\implies3\le x\le5

and

-1\le\cos2t\le1\implies2\le4+2\cos2t\le6\implies2\le y\le6

so the furthest to the right that C extends is the point (5, 2). The line x+y=k passes through this point for 2+5=k\implies k=7. For any value of k, the line x+y=k passes through C either only once, or not at all.

So 7\le k; in set notation,

\{k\mid 7\le k

4 0
3 years ago
A recipe for salad dressing calls for 1/4 cup vinegar to 2/3 cup oil.how many cups of oil are needed for each cup of vinegar
Irina-Kira [14]
( \frac{2}{3})( \frac{4}{1}) = \frac{8}{3} cups of oil
8 0
3 years ago
Read 2 more answers
What is the price of one crate of flowers?
Elza [17]

Answer:

the answer is $2.50

Step-by-step explanation:

i just did the assignment

3 0
3 years ago
Need help on this ASAP quickly please.
makvit [3.9K]
Well if we’re adding them all together 1.2+1.2+1.2+1.2+1.2= 6kg
3 0
3 years ago
Other questions:
  • An NBA basketball court is a rectangle that is 94 feet by 50 feet. A high school basketball court is a rectangle that is 84 feet
    9·1 answer
  • Explain why any rational number is either a terminating or repeating decimal
    9·1 answer
  • PLEASE HELP ME!!! PLEASE TRY TO DO ALL OF THEM THX! :)
    9·1 answer
  • Convert 11pi/15 to degrees
    6·1 answer
  • Monica is mixing some custom colored paint for her house. The color she wants requires 3/4 ounces of blue dye and 2/3 of an ounc
    8·1 answer
  • A ghost crab can travel about 12 miles every 6 hours on the ocean’s floor. How far can the crab travel in 11 hours? Explain how
    8·1 answer
  • Simplify the expression completely and show work if you can pls.
    9·1 answer
  • Which expression is equivalent to (m^2-3m+7)(m-5)^-1
    9·1 answer
  • 1/2 or (1/2)² which value is greater​
    8·1 answer
  • The width of a rectangle is 2x + 4 and the length of the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!