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
Elanso [62]
3 years ago
11

System of Equations y=-x-1 y+x=3 Solve?

Mathematics
1 answer:
ozzi3 years ago
6 0
Solve by substitution

\sf{y=-x-1}
\sf{y+x=3}

Just plug in y=-x-1 into y+x=3

So we get:

\sf{(-x-1)+x=3}

Simplify that:

\sf{-1=3}

And since that is not true, that means this system of equations has no solutions!
You might be interested in
There are 16 girls and 20 boys in the school band. Express an equivalent ratio of boys to total number of students in the school
Alex17521 [72]

Answer:

4:5

Step-by-step explanation:

half of 16 is 8, and half of 8 is 4

and half of 20 is 10, and half of 10 is 5

hope i helped man

8 0
3 years ago
What is the positive solution to this equation?<br><br> 3x^2+16x=112
ikadub [295]

Answer:

This equation is in standard form: ax 1+bx+c=0. Substitute 9 for a, 16 for b, and −112 for c in the quadratic formula 2a−b±b2−4ac.x= 2×9−16± 16^2−4×9(−112)Square 16.x=2×9−16±256−4×9(−112) Multiply −4 times 9.x=2×9−16± 256−36(−112) Multiply −36 times −112.x=2×9−16±256+4032 Add 256 to 4032.x=2×9−16±4288 Take the square root of 4288.x=2×9−16±8+67 Multiply 2 times 9x=18−16±8=67

Step-by-step explanation:

hope this help if not let me know

6 0
2 years ago
Read 2 more answers
What is 4.9987 rounded to the nearest houndred
Lerok [7]
5.00 is the answer! It is very close to 5 therefore it would immediately go to 5!
5 0
3 years ago
A construction worker needs to put a rectangular window in the side of a
Alika [10]

Answer:

I think its B

4 0
3 years ago
Read 2 more answers
In the standard Normal distribution, which z-score represents the 99th percentile?
nydimaria [60]

The Z- score representing the 99th percentile is given by 2.33

Problems of commonly distributed samples can be solved using the z-score formula.

For a set with a standard deviation, the z-score scale X is provided by:

Z = ( x- mean )/ standard deviation

Z-score measures how many standard deviations are derived from the description. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the scale is less than X, that is, the X percentage. Subtract 1 with p-value, we get the chance that the average value is greater than X.

To Find the z-result corresponding to P99, 99 percent of the normal distribution curve.

This is the Z value where X has a p-value of 0.99. This is between 2.32 and 2.33, so the answer is Z = 2.33

For more information regarding normal distribution, visit brainly.com/question/12691636

#SPJ10

3 0
2 years ago
Other questions:
  • A piece of copper has a mass of 58kg and displaces 5918ml. What is its density?
    9·1 answer
  • What times 8 eguals 100
    11·2 answers
  • 11.25 for 2/3 pound how much per pound?
    7·1 answer
  • I need help plz help meee​
    10·2 answers
  • Could someone please help me? Will mark brainlist!
    10·2 answers
  • The volume of 10 drops of a liquid is0.01 fluid ounces. What is the volume of 100 drops?
    14·1 answer
  • Ano ang dapat tandaan sa pagbuo ng plano ng proyekto​
    15·1 answer
  • Write each expression using exponents.<br> 3/8 * 3/8 * 3/8=
    15·2 answers
  • The table shows the distances and times that two dogs
    6·2 answers
  • Which of the following situations does NOT illustrate combination?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!