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beks73 [17]
2 years ago
9

Sam completed the square for the quadratic equation y=12x2−2x+3 in order to determine the minimum value of the equation, as show

n.
Step 1: y=12(x2−1x+32)
Step 2: y=12(x2−x+14−14+32)
Step 3: y=12((x−12)2−14+32)
Step 4: y=12((x−12)2+54)
Step 5: y=12(x−12)2+58
What mistake, if any, did Sam make?
Mathematics
1 answer:
Ulleksa [173]2 years ago
7 0

In Step 1, she incorrectly factored out 1/2. She should have written y=1/2(x^2−4x+6).

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(A) Write an expression that represents Sarah’s total pay last week. Represent her hourly wage with (w)?
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Answer:

Step-by-step explanation:

7 0
3 years ago
the coordinates of point t are ​(0,2). the midpoint of st is ​(1,-6) find the coordinates of point s.
sasho [114]

Question

the coordinates of point t are ​(0,2). the midpoint of st is ​(1,-6) find the coordinates of point s.

Answer:

(10,-14)

Step-by-step explanation:

0 + x

---------   = 5            Multiply both sides by 2 ---->   0 + x = 10  or x = 10

   2

2 + y

--------   = -8         Multiply both sides by 2  ---->  2 + y = -16   or y = -14        

   2

Therefore, the coordinates of point S should be at (10,-14)

4 0
3 years ago
HELP Given the set of all odd integers from 1 to 81, what is the probability
dusya [7]

Using it's concept, the probability of choosing a number that is a multiple of 9 is of 0.111.

<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

From 1 to 81, there are 81 numbers, of which 81/9 = 9 are multiples of 9, hence, considering that 81 is the number of total outcomes and that 9 is the number of desired outcomes, the probability is given the following division:

p = 9/81 = 1/9 = 0.111.

More can be learned about probabilities at brainly.com/question/14398287

#SPJ1

3 0
2 years ago
The following table represents the altitude of a hiker climbing in Mountain over a 60 minute hike. Calculate the average rate of
Serggg [28]

Answer:

The correct answer is B. The rate of change is about 3 feet per minute

I hope this helped!

6 0
3 years ago
Thomas walks 10 miles in 120 minutes. Select all of the unit rates below that
tatiyna

Answer:

Hi! The answer to your question is B) He can walk 12 miles in 1 minute.

To find Unit rate divide the biggest number by the smallest; Example: 120/10

Step-by-step explanation:

☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆

☆Brainliest is greatly appreciated!☆

<em>Hope this helps!!</em>

<em>- Brooklynn Deka</em>

8 0
3 years ago
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