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
Verizon [17]
3 years ago
11

Y = -x -1 y = -2x + 7 find x and y​

Mathematics
1 answer:
goldenfox [79]3 years ago
3 0

Answer:

Step-by-step explanation:

Y = -x -1..........(1)

y = -2x + 7....(2)

Equating the two equations

-x -1 = -2x + 7

-x + 2x = 7+1

x = 8

Putting x in (1)

y = -8 - 1

y = -9

You might be interested in
How do you solve for what is a? Please answer quickly?<br><br> 4(a-2)=3(a+4)
Lunna [17]
4(a-2)=3(a+4)
4a-8=3a+12
a=20
8 0
3 years ago
A certain forest covers an area of 4800 km^2 . Suppose that each year this area decreases by 5.25% . What will the area be after
9966 [12]

Answer:

the area after 6 years is  3,473 km^2

Step-by-step explanation:

The computation of the area after 6 years is as follows:

= Area × (1 - decreased percentage)^number of years

= 4,800 km^2 × (1 - 5.25%)^6

= 4,800 km^2 × 0.9475^6

= 3,473 km^2

Hence, the area after 6 years is  3,473 km^2

5 0
2 years ago
Is it possible for two different linear functions to have the same y-intercept? Explain.
Lesechka [4]
No its not possible I cant explain right now because I'm in class but I will later
7 0
3 years ago
What is the length of line segment PQ? If you can please explain, thanks.
nydimaria [60]

Given:

Tangent segment MN = 6

External segment NQ = 4

Secant segment NP =x + 4

To find:

The length of line segment PQ.

Solution:

Property of tangent and secant segment:

If a secant and a tangent intersect outside a circle, then the product of the secant segment and external segment is equal to the product of the tangent segment.

\Rightarrow NQ\times NP = MN^2

\Rightarrow 4\times (x+4) = 6^2

\Rightarrow 4x+16 = 36

Subtract 16 from both sides.

\Rightarrow 4x+16-16 = 36-16

\Rightarrow 4x =20

Divide by 4 on both sides.

$\Rightarrow\frac{4x}{4}=\frac{20}{4}

\Rightarrow x = 5

The length of line segment PQ is 5 units.

5 0
3 years ago
Read 2 more answers
The sum of rational number and an irrational number
Angelina_Jolie [31]

Answer:

The sum of a rational number and an irrational number is irrational." By definition, an irrational number in decimal form goes on forever without repeating (a non-repeating, non-terminating decimal). By definition, a rational number in decimal form either terminates or repeats.

Step-by-step explanation:

However, if the irrational parts of the numbers have a zero sum (cancel each other out), the sum will be rational. "The product of two irrational numbers is SOMETIMES irrational." Each time they assume the sum is rational; however, upon rearranging the terms of their equation, they get a contradiction (that an irrational number is equal to a rational number). Since the assumption that the sum of a rational and irrational number is rational leads to a contradiction, the sum must be irrational.

5 0
3 years ago
Other questions:
  • If the length of room is four times the height and breadth is twice of its height and the volume of the room is 512 m^2 find its
    5·1 answer
  • I could really use someone’s help on this !
    6·1 answer
  • Evaluate the given expression if x = 25, y = 10, w = 11, and z = 18.<br><br> (see the image)
    12·2 answers
  • Help please i appreactie if you do
    9·1 answer
  • The volume of a sphere is 3,000π m3. What is the radius of the sphere to the nearest meter?
    15·2 answers
  • Which line has a y-intercept of -2?<br> A) L<br> B) P<br> C) T<br> D) Both L and T
    10·1 answer
  • (−12)⋅(−12)⋅(−12) using exponets
    8·1 answer
  • Explain how Sergio use three lengths of a ribbon 2 ½ feet long to wrap packages. How many feet of ribbon did he us
    14·1 answer
  • Here is my broke hand
    14·1 answer
  • Laura has 3.85 pounds of bananas. She goes to the store to buy 2.75 more pounds of bananas to make banana bread. Each loaf requi
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!