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
nata0808 [166]
3 years ago
6

The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:

Mathematics
1 answer:
iogann1982 [59]3 years ago
5 0

Answer:

Step 2: 4(2) + 4(3x)

Step-by-step explanation:

By definition, the area of a rectangle is given by:

Area = Length × Width

In this case, we know that:

Area = 8 + 12x

Width = 4

Therefore:

Step 1: 8 + 12x

Step 2: 4(2) + (4)(3x)

Step 3: 4(2 + 3x)

Therefore, the dimensions of the rectangle are 4 and 2 + 3x.

The mistake was made in STEP 2. Instead of 4(2) + 4(x2) it should be  4(2) + 4(3x). Which is the second option.

You might be interested in
I need help right now this is urgent
Nat2105 [25]
The answer should be 188
7 0
3 years ago
The operating costs for each machine for one day have an unknown distribution with mean 1610 and standard deviation 136 dollars.
BabaBlast [244]

Answer:

20.27

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}

Using the Central Limit Theorem for Means, what is the standard deviation for the sample mean distribution?

This is s when \sigma = 136, n = 45. So

s = \frac{136}{\sqrt{45}} = 20.27

So the correct answer is:

20.27

3 0
3 years ago
Can someone please help me?
madreJ [45]

as the horizontal beam are parallel to each other x and 40 are alternate angles and alternate angles are equal. So <u>x=40</u>

8 0
3 years ago
Read 2 more answers
what is the answer to this it takes sara 1/2 day to make birdhouse how much of birdhouse will be built after 2/5 day
Fiesta28 [93]

Answer:80%

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
I don’t know how to answer the question
OlgaM077 [116]

Let the partitions of the segment be 5k and 3k .
.
5k+3k = length of segment
Suppose the length of segment is y
8k = y
k = y/8
.
Hence ,
5k = 5(y/8)
3k = 3(y/8)
.
As the value of the segment wasn't given , it seems a bit complicated..
.
Hope u understand!

6 0
3 years ago
Other questions:
  • Which expression is equivalent to 5.4−1.8 ? A. −1.8+5.4 B.−1.8−5.4 C. 1.8 + 5.4 D.1.8−5.4
    13·2 answers
  • Brad jumps 4 feet forward and then 2 feet backward how many full sets must he jump to reach 16 feet
    5·1 answer
  • HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Correct answer gets brainliest. If johnny had 3,780 fake dollars from doing c
    7·2 answers
  • morgan jogged 51.2 kilometers karen jogged 53.52 kilometers kelly jogged 6kilometers less than morgan how many kilometers did ka
    8·1 answer
  • How many
    14·1 answer
  • Determine whether quadrilateral ABCD with vertices A(–4, –5), B(–3, 0), C(0, 2), and D(5, 1) is a trapezoid. Step 1: Find the sl
    6·2 answers
  • a taxi hurries with a constant speed of 38 miles per hour. how long will it take to travel a distance of 95 miles​
    15·2 answers
  • What is the third angle of a triangle if the other two are (3x-20)° and (4x+10)°​
    14·1 answer
  • Given the position of the particle, what the position(s) of the particle when it’s at rest
    12·1 answer
  • AActiveWhich is the graph of g(x)=[²]* - 2²(0,2.25)2--2Mark this and return2 3Save and Exit56NextSubmit
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!