To factor 9x^2 - 4, you can first rewrite the expression as:
A. (3x-2)^2
B. (x)^2 - (2)^2
C. (3x)^2 - (2)^2
D. None of the above
Answer:
C. (3x)^2 - (2)^2
Step-by-step explanation:
Each of the two terms is a perfect square, so the factorization is that of the difference of squares. Rewriting the expression to ...
(3x)^2 - (2)^2
highlights the squares being differenced.
__
We know the factoring of the difference of squares is ...
a^2 -b^2 = (a -b)(a +b)
so the above-suggested rewrite is useful for identifying 'a' and 'b'.
A scientist measured the mass of 9 samples of a substance. The data is shown in the table
Answer:3.1
Step-by-step explanation:
Answer:
Step-by-step explanation:
I think that you are suppose to simplifiy it out to find the answer.
Question 5 (1 point)
Which of the following statements about rigid transformations is FALSE?
The shape and size are not preserved.
2:
In a reflection, the points on the pre-image and image are the same distance
from the line of reflection.
3:
Either the shape or the size is not preserved.
In a rotation, the points of the pre-image are always the same distance away
from the center of rotation as the corresponding points of the image.
4:
Answer:
The false statements are;
The shape and size are not preserved
3: Either the shape or the size is not preserved
Step-by-step explanation:
A rigid transformation, in mathematics, is a planar transformation, preserving, the length or linear dimensions of the original figure or pre-image. Examples of rigid translation includes, rotation, reflection, translation, and their combinations of these transformations.
Rigid transformation is one where a geometric shape in an Euclidean space is transformed such that the spatial distances between any two points is maintained
Therefore, both the shape of the figure or pre-image and its size are preserved.
Suki split five dogs treats equally among her six dogs. What fraction represents this division.
Answer:
5/6
Step-by-step explanation:
We can find the fraction by dividing 5 by 6, since there are 5 treats and 6 dogs.
5/6 will be the fraction representing the division
Hexagon B is an enlargement of hexagon A by a scale factor of 5.2
If the area of A is 8 cm^2, calculate area of B
Answer:
216.32 cm²
Step-by-step explanation:
Given that the scale factor is 5.2 then the area scale is
(5.2)² , thus
area of B = area of A × (5.2)² = 8 × (5.2)² = 216.32 cm²
What is the additive inverse of 0?
Answer:
The additive inverse of 0 is 0.
Answer:0
Step-by-step explanation:
The number 0 is the only number with its additive inverse being itself. That is, the additive inverse of 0 is 0.
What is the value of p +9 when p=13.
Answer: 22
Step-by-step explanation: p=13 so if you make p into an equation it would be shown as p+9=22, or it could also be 13+9=22
please help me this is due today How many students do not prefer pepperoni pizza ??
Answer:
50%
Step-by-step explanation:
how ever many kids are in that class, divide it by 2 and that will be the amount of kids that do not prefer pepperoni (:
Simplify by combining like terms.
1. 6r+3s+2s+4r
2. 0.5-x
Answer:
10r + 5s and the second one stays the same because 0.5 doesn't have the variable x so u leave it the same. Hope this helps
Step-by-step explanation:
Which is the best type of graph to model the speed of a roller coaster over the full two minutes it takes to complete the ride? a qualitative graph a discrete graph a bar graph a histogram
Answer:
A qualitative graph
Graphs are used to show the relationship between related quantities.
The best type of graph to model the speed over the full two minutes, is a discrete graph.
From the question, we have the following variables:
SpeedTimeThe best type of graph must show the trend between the speed of the roller coaster and the time.
Analyzing the options, we have:
Both variables are numerical data, and a qualitative graph cannot be used as a model; because qualitative graphs are used for non-numerical data.Bar graphs and histograms are used to show distributions; not trendsThe discrete graph (see attachment) is used for numerical data, and it can also be used to show trends (by connecting the dots)Using the above analysis, we can conclude that the best type of graph to use, is a discrete graph
Read more about graphs at:
https://brainly.com/question/10712002
solve 4 < -2x + 3 < 9
ANSWER:
-3<x<-0.5.............
How many terms are in the polynomial? What type of polynomial is this?
Answer:
3 terms
Step-by-step explanation:
Given polynomial has 3 terms. It is a trinomial
How many cups of yellow paint should you mix with 1 cup of blue paint to make the same shade of green? Explain or show your reasoning.
Answer:
A 2:1 ratio 2 cups of yellow to 1 cup of blue
can someone please help meee
Answer:
m-4 = 64 degrees.
Step-by-step explanation:
180 - 116 = 64
supplementary angles are when 2 degrees add up to 180
so if one of them is 116 then you subtract that from 180 and get 64
so the other angle would be 64 degrees
Answer:
64 degrees
Step-by-step explanation:
Supplementary angles add up to 180
180-116=64
P is between A and E, AE=27.3 and AP=12.8. What is the length of PE?
The length of line PE from the distance AE is 14.5
The schematic view showing the illustration of the question is shown in the image attached below.
Given that:
line AE = 27.3line AP = 12.8Line AP shows the distance halfway to line AE.
In order to determine the value of line PE, we need to subtract the value of line AE from PE.
i.e.
AE = 27.3 - 12.8AE = 14.5Therefore, we can conclude that the length of PE is 14.5
Learn more about length here:
https://brainly.com/question/22059747?referrer=searchResults
What is the range of the data 79,52,85,94,71,82.84,66,58,98,72,100
Answer:
48 is the range!
Step-by-step explanation:
I hope it helped! Have a good day, dear. <3
What single percentage change is equivalent to a 9% increase followed by a 17% increase
Answer:
27.53%Step-by-step explanation:
Initial number = 100
9% increase
100*1.09= 10917% increase
109*1.17= 127.53The difference with the initial number is:
127.53 - 100 = 27.5327.53/100*100% = 27.53%This is the single percentage change
If x is a rational number and y is a rational number than x + y is a rational number.
A)
Always True
B
Sometimes True
C)
Usually True
D)
Never True
Answer:
A)
Step-by-step explanation:
The set of rational numbers is closed for all the four operations‚ so x+y‚ x-y‚ x*y and x/y are rational too a rational number can be expressed as a fraction of two integers. so‚ x can be expressed as a/b and y as c/d.
HELPPP!!!!! Matthew decides to buy expensive designer jeans. Less expensive jeans are available,
but the added cost of the designer brand is worth it to Matthew most likely because
he has a limited income
he prefers designer brands
his budget is restricted
o the alternatives cost more
Is -8.4 a Rational number or a Integer ?
Integers are just whole numbers and their negative counterparts.
The set of integers is shown below.
{... -3, -2, -1, 0, 1, 2, 3, ...}
Decimals are not integers but rational numbers do include them.
So -8.4 is a rational number.
Answer:
It is a rational
Step-by-step explanation:
-8.4 can be turned in to a fraction meaning it is not an whole number meaning it can not be an integer
Find the midpoint of the segment with the following endpoints.
(4,-10) and (10,0)
Help?
Answer:
(7,-5)
Step-by-step explanation:
Answer:
(7,-5)
Step-by-step explanation:
(7,-5)
please help :) thank you!
Answer:
A
Step-by-step explanation:
just plug in the formula
Helpppp A class of 37 students took a test worth 100 points. The five-number summary of their scores
is 55, 67, 73, 81, 98.
Answer:
44.7
Step-by-step explanation:
PLSSS HELP!! Select the number that would make this statement true: 628 ÷ ________ = 0.628
10 to the power of 1
10 to the power of 2
10 to the power of 3
10 to the power of 4
Answer:
10 to the power of 3
Step-by-step explanation:
i used a calculator (´-﹏-`；) - Hope this helps
At 9:00 am, the temperature was at 93% The temperature dropped 3% each hour for 6 hours. What is the temperature at 3:00 pm?
Answer:
75%
Step-by-step explanation:
3x6 =18%
93-18
=75%
Solve for s.
0.5s +1= 7+ 4.58
S =?
Answer:
s = 21.16
Step-by-step explanation:
0.5s +1= 7+ 4.58
Combine like terms
0.5s +1=11.58
Subtract 1 from each side
0.5s +1-1= 11.58-1
.5s = 10.58
Multiply by 2
.5s *2 = 10.58*2
s = 21.16
Answer: s = 21.16
Step-by-step explanation:
0.5s + 1 = 7 +4.58 Combine like terms on the right side
0.5s + 1 = 11.58 Subtract 1 from both sides
-1 -1
0.5s = 10.58 Divide both sides by 0.5
s = 21.16
What is the value of g in this problem? g – 4.9 = 8.3
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{g = 13.2}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{g - 4.9 = 8.3}[/tex]
Move 4.9 to right hand side and change it's sign
[tex] \longrightarrow{ \sf{g = 8.3 + 4.9}}[/tex]
Add
[tex] \longrightarrow{ \sf{g = 13.2}}[/tex]
Hope I helped!
Best regards! :D
What divides Antarctica into eastern and western regions? Ross Ice Shelf Ellsworth Mountains Antarctic Peninsula Transantarctic Mountains
Answer:
The Transantarctic Mountains
Step-by-step explanation:
Hope this helps you :)
Answer:
transantartica mountains
Step-by-step explanation:
-a/6+5=1 Solve the eqation
Answer:
a=24
Step-by-step explanation:
[tex]-\frac{a}{6}[/tex]= -4
-a= -4*6
-a= -24
a= 24
please help number 13
Answer:
-2 greater than x less than -5
put it in mathematical terms then you'll understand.....
