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
Basile [38]
3 years ago
12

Carly solved a quadratic equation by completing the square, but her work has errors. Identify the first error in Carly's work.

Mathematics
1 answer:
Savatey [412]3 years ago
8 0

Answer:

Her first error was adding the wrong number to both sides. Instead of 4², it should be 2²

Step-by-step explanation:

When completing the square, the number that needs to be added to both sides is (b/2)²

In this problem, b is 4. So, Carly should have added 2² to both sides, but she added 4² instead.

So, her first error was adding 4² to both sides instead of 2²

You might be interested in
How is the product related to the first factor?
NARA [144]

Answer:

5/5 austin

Step-by-step explanation:


5 0
3 years ago
If you are good at determining sequences please help! (Show work)
ziro4ka [17]

Answer:

-62.5008

Step-by-step explanation:

the pattern here is dividing by -5, so just continue dividing by -5 starting on -3 and continuing 4 more times. record each number and then add them together using a calculator. you will get -62.5008

Please mark brainliest :)

8 0
3 years ago
(-4,1) and (-8,7) <br><br> write an equation in slope-intercept form
Alchen [17]

Answer:

y = -2x - 9

Step-by-step explanation:

so we have our two points, (-4,-1) and (-8,7) What we need to do to find our slope is y2 - y1 over x2 - x1. Once plugging in the numbers and subtracting it should give you 8/-4. 8 divided by -4 is -2. m = -2. Now to find our "b" we plug in our slope, and plug in one of the two points into the format of y = mx + b.

-1 = -2(-4) + b

multiply -2 and -4

-1 = 8 + b

we subtract 8 from itself and -1

-9 = b

Our equation is y = -2x - 9

5 0
3 years ago
A parking lot has seventy-eight parking spaces numbered from 1 to 78. There are no cars in the parking lot when Jillian pulls in
polet [3.4K]

Answer:

49/78

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

probability that the number on the parking space where she parks is greater than or equal to 30 = numbers greater than or equal to 30 / total numbers

49 / 78

6 0
2 years ago
(8x +10) = (6x +3) °
seropon [69]

Answer:

The answer would be

x=\frac{-7}{2}

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation is represented by the graph below? On a coordinate plane, a curve starts at (0, negative 3) in quadrant 4 and the
    9·1 answer
  • Solve 2x^2- 7x - 4 = 0 using the Quadratic Formula.
    12·1 answer
  • A school is selling tickets to a choral performance. On the first day, the school sold 6 adult tickets and 6 child tickets for $
    11·1 answer
  • An ostrich egg has about the same volume as a sphere with a diameter of 5 inches. If the eggshell is 1/12 inch thick, find the v
    5·1 answer
  • Melody is solving the equation x +12=31. Find her mistake and correct it
    9·2 answers
  • Find the points of intersection of the circles x²+y²-15=0 and x²-4x+y²+2y-5=0. Check by graphing the equations.
    15·1 answer
  • Suppose that scores on a test are normally distributed with a mean of 80 and a standard deviation of 8. Answer the questions bel
    7·2 answers
  • Elisondra is eating at a restaurant with three friends they want to choose at random who will order first if you model the situa
    5·3 answers
  • A truck has left Amsterdam with a speed of 52 mph. After 5 hours a car has left Amsterdam with a speed of 78 mph. At what distan
    12·2 answers
  • Carl is boarding a plane.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!