Answers
Here's why:
The 4 and 8 on the left side combine to 12. The 5x and -3x on the right hand side combine to 2x.
This means the equation for choice D becomes 2x+12 = 2x-12
From here, subtract 2x from both sides. Doing so will cancel each copy of 2x and the x terms go away entirely. We're left with 12 = -12 which is a false statement since we don't have the same number on both sides. We have a contradiction instead, so there are no solutions here.
No matter what we replace x with in equation D, it will always be false.
If you graphed y = 2x+12 and y = 2x-12, you would find that the lines are parallel. Parallel lines never intersect. Intersection points are solution points, so this is a visual way to see that we don't have any solutions.
Related Questions
10) Julio rented a bike from Bill's Bikes. It
cost $20 plus $6 per hour. If Julio paid
$50, then he rented the bike for how many
hours?
Answers
Which figure could be the result of dilating this triangle with a scale factor greater than 1? On a coordinate plane, a triangle has points (0, 0, (0, 3), (6, 0). On a coordinate plane, a triangle has points (0, 0), (0, 3), (9, 0). On a coordinate plane, a triangle has points (0, 0), (0, 1), (6, 0). On a coordinate plane, a triangle has points (0, 0), (0, 5), (10, 0). On a coordinate plane, a triangle has points (0, 0), (0, 2), (4, 0).
Answers
Answer:
C
Step-by-step explanation:
Edge
The required figure has been attached below could be the result of dilating a given triangle with a scale factor greater than 1. The correct answer would be an option (C).
What is a transformation?A point is transformed when it is moved from where it was originally to a new location. Translation, rotation, reflection, and dilation are examples of different transformations.
The triangle has points (0, 0), (0, 3), and (6, 0) which are given in the question.
As per option (C), we have
On a coordinate plane, a triangle has points (0, 0), (0, 5), and (10, 0).
This result of dilating a given triangle with a scale factor greater than 1.
The required figure has been attached below which represents the dilation.
The correct answer would be an option (C).
To learn more about the transformations click here :
https://brainly.com/question/28029674
#SPJ6
The distance between city a and city b is 200 miles. A length of 1.7 feet represents this distance on a certain wall map. City c and city d are 2.55 feet apart on this map. What is the actual distance between city c and city d
Answers
Answer:
510
Step-by-step explanation:
200×2.55=510 this is the answer
Identifying a binomial experiment In a study conducted by the sponsoring organization of an academic conference, attendees were classified during registration into one of three categories according to their field of interest: General, Applied, or Theoretical. Of the 400 people in attendance, 200 were classified as General, 60 were classified as Applied, and 140 were classified as Theoretical. You randomly select three registration cards (with replacement) of attendees of the conference and record their fields of interest.
This experiment _________ binomial experiment.
When you select a registration card, the probabilities associated with each outcome are:
Outcome Probability
General 0.35
Applied 0.45
Theoretical 0.20
binomial random variable with mean E(X) = and Let X be the number of card selections with outcome "General." Then X is a standard deviation o =________
Answers
Answer:
1, this is a binomial experiment.
Step-by-step explanation:
this is a binomial experiment. Since it is general outcome, the probability of success is 0.50, that is 50 percent.
we have that X follows the binomial distribution
X ~ Binomial(n = 3, p = 0.50)
we have 3 outcomes( general, applied, theoretical).
mean = E(X)
= np
= 3(0.5)
= 1.5
standard deviation = σ = √np(1-p)
= √3(0.5)(1-0.5)
= √1.5(0.50)
= √0.75
= 0.8660
the mean = 1.5
the standard deviation = 0.8660
Find the surface area of the rectangular prism.
7 in
1 in
3 in
Answers
Answer:
[tex]62in^2[/tex]
Step-by-step explanation:
Formula of total surface area of a prism:
[tex]2(lb+bh+lh)[/tex]
= 2[(7x3)+(1x3)+(1x7)]
= 2[21+3+7]
= 2 x 31
= [tex]62in^2[/tex]
How many days are there in 6 weeks? Solve the related word problem to represent the inverse operation There are days in 6 weeks How many weeks are equal to 42 days? Since 42 =27= 42 days is equal to weeks 2
pls help me
Answers
Answer:
there a 42 days in 6 weeks
Step-by-step explanation:
multiply 6 x 7= 42
so you have 5 feet into 13 rods what is the total length?
Answers
Answer:
15
Step-by-step explanation:
t¡yesç
Identify the GCF and then factor out: 6x2y + 12xy2
Answers
Answer:
6xy(x+2y)
Step-by-step explanation:
6x²y+12xy²
The GCF between 6 and 12 is 6. Factor out 6.
= 6(x²y+2xy²)
The GCF between x² and x is x. Factor out x.
= 6x(xy+2y²)
The GCF between y and y² is y. Factor out y.
= 6xy(x+2y)
Therefore, the GCF of the expression is 6xy and the factored expression is 6xy(x+2y).
I hope this helps!
What is h?
Problem 23h=12
Answers
Answer:
h=[tex]\frac{12}{23}[/tex]
h=0.52173913043
Step-by-step explanation:
23h=12
divide 12 by 23
h=[tex]\frac{12}{23}[/tex]
h=0.52173913043
Hope this helps! :)
Answer:
it will be 1.91 or if want rounded to nearest tenth it will be 1.9
Step-by-step explanation:
dont have a explanation nut i hopes this help.
plzz help me with this question
Answers
Answer:
x = 5
Step-by-step explanation:
We need to find the value of x in this case.
For this, we need to consider that the triangles are similar. Now, we can find it as follows :
[tex]\dfrac{12}{3}=\dfrac{20}{x}\\\\x=\dfrac{20\times 3}{12}\\\\x=5[/tex]
So, the value of x is equal to 5.
the geometric mean...
Answers
Answer:
Relating to geometry, or according to its methods.
Step-by-step explanation:
You are buying a coat that cost $150. You have a 10%
off coupon to use.
Answers
Answer: 135
Step-by-step explanation:
Answer:
$135
Step-by-step explanation:
Please help me with this answer, thank you
Answers
Answer:
i think its A
Step-by-step explanation:
......................
Answers
Answer:
[tex]-1/x^2[/tex]
Step-by-step explanation:
First, let's simplify the expression on the right:
[tex]1/\sqrt{x^2}=1/x[/tex]
Next, rewriting 1/x as x⁻¹, we can use the power rule to differentiate both sides with respect to x:
[tex]y=x^{-1}\\dy/dx=d/dx(x^{-1})\\dy/dx=-x^{-2}=-1/x^2[/tex]
An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this van since it is believed that the van has an incorrect manufacturer's MPG rating. After testing 250 vans, they found a mean MPG of 39.9. Assume the standard deviation is known to be 2.4. A level of significance of 0.05 will be used. Find the value of the test statistic. Round your answer to 2 decimal places.
Answers
Answer:
The value of the test statistic is -2.64.
Step-by-step explanation:
The test statistic is:
[tex]t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the expected(claimed) mean, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
An automobile manufacturer claims that its van has a 40.3 miles/gallon (MPG) rating.
This means that [tex]\mu = 40.3[/tex]
After testing 250 vans, they found a mean MPG of 39.9. Assume the standard deviation is known to be 2.4.
This means, respectively, that:
[tex]n = 250, X = 39.9, \sigma = 2.4[/tex]
So
[tex]t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]t = \frac{39.9 - 40.3}{\frac{2.4}{\sqrt{250}}}[/tex]
[tex]t = -2.64[/tex]
The value of the test statistic is -2.64.
What is the value of x in the following figure?
A. 38°
B. 52°
C. 142°
D. 128°
Answers
Answer:
b
Step-by-step explanation:
5. Is the number 0.6 with the line on top rational or irrational?
Answers
Answer:
It's a rational number/decimal
Step-by-step explanation:
Please help me with this question:)!
Answers
Answer:
i think so option b is the correct option.
Step-by-step explanation:
because 3+7=10 not 11.
Lori has $450 in her bank account. She withdraws $20 a month for
her gym membership. Construct a linear equation to model Lori’s
bank balance for any given month.
Answers
Answer:
I cant give you a linear graph but i can give you the equation and you can graph it. y=20x+450
Step-by-step explanation:
Answer:
Y = -20x + 450.
Step-by-step explanation:
Question 1
1 pts
The area of triangle LMN is 36 square inches. Find the base.
8 in.
M
?
inches
Answers
Answer:
Step-by-step explanation:
Did you get the answer?
Why did the troll give us the clues
We had no money in our pockets
He was nice
So we can get confused
Answers
Answer:
lol
Step-by-step explanation:
im laughing in class
PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
208x + 90 = 298x
Answers
Answer:
x=1
Step-by-step explanation:
hope this helps
Answer:
x=1
Step-by-step explanation:
208x+90=298x
Subtract from both sides 298x.
208x+90−298x=298x−298x
−90x+90=0
Step 2: Subtract from both sides 90.
−90x+90−90=0−90
−90x=−90
Step 3: Divide both sides by -90.
−90x
−90
=
−90
−90
x=1
Use the following data from two independent samples, one group of students who received six months of standard treatment for their adjustment disorder, and a separate group of students who received six months of multicultural orientation treatment for their adjustment disorder. You will do the calculations below that will lead to conducting a t-Test for Two Independent Samples. Based on your results, you will then determine if the post-treatment adjustment scores are significantly different for the two independent samples. Your lab instructors will inform you how to submit this Lab Individual Assignment for grading.
Multicultural Framework (Sample A) Standard Treatment (Sample B)
9 7
11 8
13 10
10 6
11 8
9 5
15 7
14 12
10 5
Required:
a. n1= _________ and n2=________
b. df1= _________ and df2=_______
c. Total df=______
Answers
Answer:
[tex]n1 = 9[/tex] and [tex]n2 = 9[/tex]
[tex]df1 = 8[/tex] and [tex]df2 = 8[/tex]
[tex]df = 16[/tex]
Step-by-step explanation:
Given
The above data
Solving (a): n1 and n2
This is the number of rows in each category
For sample A
[tex]n1 = 9[/tex]
For sample B
[tex]n2 = 9[/tex]
Solving (b): df1 and df2
This is calculated as:
[tex]df = n - 1[/tex]
For n1:
[tex]df1 = n1 - 1[/tex]
[tex]df1 = 9 - 1[/tex]
[tex]df1 = 8[/tex]
For n2:
[tex]df2 = n2- 1[/tex]
[tex]df2 = 9- 1[/tex]
[tex]df2 = 8[/tex]
Solving (c): Total df
Since there 2 categories of data, the total degrees of freedom is:
[tex]df = n1 + n2 - 2[/tex]
[tex]df = 9 + 9 - 2[/tex]
[tex]df = 16[/tex]
Alexa has set up a lemonade stand outside her house and sells small cups and large cups of lemonade. Each small cups holds 8 ounces of lemonade and each large cup hold 16 ounces of lemonade. Alexa used 320 ounces of lemonade and sold twice as many small cups as large cups. Determine the number of small cups sold and the number of large cups sold. how do I set this equation up to get 10?
Answers
Answer:
l = large cups amount of large cups = 16 x ounces
small cups = 2x amount of small cups = 8 (2x) summed = 320 ounces
16x + 8 (2x) = 320 solve for 'x' the number of 16 ounce cups, the 8 ounce cups = 2x
Step-by-step explanation:
l = large cups amount of large cups = 16 x ounces
small cups = 2x amount of small cups = 8 (2x) summed = 320 ounces
16x + 8 (2x) = 320 solve for 'x' the number of 16 ounce cups, the 8 ounce cups = 2x
Can you help me on question 12?!
Answers
Answer:
A) 8/27
Step-by-step explanation:
(2/3)³ = 8/27
4/5 of 130=
7/8 of 112=
10/12 of 156=
Answers
Answer:130/4 ×5 112÷8 ×7 and 156÷12 ×10
Step-by-step explanation:can't work them out right now don't have a calculator on me but that's the basic
Gabby is Mines >:) !
Answers
Answer:
b.nun1
Step-by-step explanation:
Someone help my cousin has been stuck on this question and please explain how you got the answer thank you!!!
Answers
Answer:
the first one is 6 and the second one is -2
Step-by-step explanation:
bc/2 ---> (3)(4)/2 = 12/2 = 6
4a + 6 = 4(-2) + 6 = -8 + 6 = -2
1,345×311 is odd number or even number
Answers
Answer:
It's odd cuz it ends with 5
Step-by-step explanation:
418295
0.0001859 in scientific notation
Answers
Answer:
1.859 x 10^-4
Step-by-step explanation:
To the -4 power means to move the decimal place to the right 4 spaces.