Determine if 9 - 4x2 is the difference of two squares and if it is, factor it.
Answers
Answer:
Step-by-step explanation:
9 = 3 * 3 = 3²
4x² = 2²x² = (2x)²
9 - 4x² = 3² - (2x)² {a² - b² = (a + b)(a - b) ; a = 3 ; b = 2x}
= (3 +2x)(3 - 2x)
Related Questions
Please help me with the question please ASAP ASAP
Answers
Especially since the shape is convex
Answer:
2340
Step-by-step explanation:
Since, the formula for finding sum of interior angles of a polygon is :
(n-2) × 180° [Where 'n' denotes number of sides]
Hence,
Sum of interior angles of a pentadecagon is ,
(15 - 2) × 180°
= 13 × 180°
= 2340°(Ans)
A rocket is the form of a circular cylinder closed at the lower end with a cone of the same radius attached to the top . The cylinder is of radius 2.5m and height 21m and the cone has the slant height 8m . Calculate the total surface area and the volume of the rocket
Answers
Answer:
V=462.076m ^3
Step-by-step explanation:
Jay is paid $12.50 per hour. Last week, his paycheck totaled $112.50. How many hours did he work? Write and solve an equation to represent the situation.
Answers
Answer:
9 hours
Step-by-step explanation:
If he earns 12.50 an hour...
112.50 ÷ 12.50 = 9 hours
Answer:
9 hours
Step-by-step explanation:
112.50 ÷ 12.50 = 9 or 9 hours
What will be the new position of the given point (–2, –3) after reflection across the x-axis?
a) (2, 3)
b) (-3, -2)
c) (-2, 3)
d) (3, -2)
Answers
Answer:
(2,3)
Step-by-step explanation:
The new position of the point (–2, –3) after reflection across the x-axis is (-2,3)
How to determine the new position?The point is given as:
(-2,-3)
The rule of reflection across the x-axis is:
(x,y) -> (x,-y)
So, we have:
(-2,-3) -> (-2,3)
Hence, the new position of the point (–2, –3) after reflection across the x-axis is (-2,3)
Read more about reflection at:
https://brainly.com/question/4289712
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Given that 6 > -2, which statements are true? Check all that apply.
(2)(6) > (-2)(2)
-2
2 2
(-2)(6) > (-2)(-2)
-2
-2 --2
(2)(6) < (-2)(2)
-2
2 2
NIO
Answers
Answer:
hello rspl social science sample paper chaye
Answer:
i don't know
Step-by-step explanation:
Given the function f(x) = 2 x + 61 - 4, for what values of x is f(x) = 6?
O x= -1, x = 11
Ox=-1, x = -11
O x= 14 = -26
O x= 26, x=-14
Answers
Answer:
[tex]x = -1[/tex] or [tex]x = -11[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 2|x+6| - 4[/tex]
Required
Find x when
[tex]f(x) = 6[/tex]
Substitute 6 for f(x)
[tex]6 = 2|x+6| - 4[/tex]
Add 4 to both sides
[tex]4+6 = 2|x+6| - 4+4[/tex]
[tex]10 = 2|x+6|[/tex]
Divide both sides by 2
[tex]5 = |x + 6|[/tex]
Rewrite as:
[tex]|x + 6| = 5[/tex]
This can be split to:
[tex]x + 6 = 5[/tex] or [tex]-(x + 6)=5[/tex]
Solve for x in both cases
[tex]x = 5 - 6[/tex] or [tex]x + 6 = -5[/tex]
[tex]x = -1[/tex] or [tex]x = -6 - 5[/tex]
[tex]x = -1[/tex] or [tex]x = -11[/tex]
Answer:
i think it’s x= -1, x = -11
Step-by-step explanation:
A pair of jeans is marked up 20% on the original price. The original price was $50. What is the sale price of the pair of jeans before sales tax?
Answers
Answer:
20% of $50 is $10. This means that the pair of jeans now cost $60 since it got marked up.
Step-by-step explanation:
What are the domain and range of f(x) = 2|x – 4| + 3 ?
Answers
☁️ Answer ☁️
I think it's the second one.
Hope it helps.
Have a nice day hyung/noona!~ ￣▽￣❤️
Use a table to find (h-8)(h-9).
Answers
h^2-17x+72
Just use FOIL
equation - 2(x-2) + 3 (4x-1)=0
Answers
Answer:
2(x-2) + 3 (4x-1) = 0
x = 1/2
Round to the nearest hundredth:7.884
Answers
Answer:
7.88
Step-by-step explanation:
Hope this helps :D
When rounding to the nearest hundredth, the number 7.884 becomes 7.88.
To round 7.884 to the nearest hundredth, we look at the digit in the thousandth place, which is 8.
Now, If the digit to the right is less than 5, you simply drop all the digits to the right and keep the desired decimal place unchanged.
If the digit to the right is 5 or greater, you round up the desired decimal place by increasing it by one. Drop all the digits to the right.
Since 8 is greater than or equal to 5, we round up the digit in the hundredth place.
Therefore, when rounding to the nearest hundredth, the number 7.884 becomes 7.88.
Learn more about Rounding off here:
https://brainly.com/question/13391706
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Help me answer all of those questions
Answers
1) 100N 2) 0.3m/s² 3) 1/2 kg
Step-by-step explanation:
1) F = ma
F = 50×2
F = 100N
2) F = ma
9000 = 30000×a
(9000÷30000) = a
a = 0.3m/s²
3) F = ma
1 = m×2
(1÷2) = m
m = 1/2 kg
A fund-raiser at the school raises $617.50. They sent $580.45 to local charities. What percent of the money went to charities?
Answers
Answer:
94% of the money went to charities.*WILL GIVE BRAINLIEST*
The sum of the areas of all the faces of a 3D object is called:
A: area
B: surface area
C: volume
D: perimeter
Answers
Answer:
b
Step-by-step explanation:
Answer:
Surface area
Step-by-step explanation:
Area is the space taken up by one surface plane
Volume is the amount of space taken up by the entire object
Perimeter is the length of all the edges of the shape combined
Find the Selling Price.
Cost to store $90
Markup 100%
Selling Price:
Answers
Answer:
Selling Price= $180
Step-by-step explanation:
100%×90=90
90+90=180
The speed of a lion is 150% of the
speed of a deer. If a deer's speed is
16 miles per hour, find the speed of a
lion.
Answers
Answer:
the lions speed would be 24 mph
Answer:
200%
Step-by-step explanation:
Find the geometric mean between 8 and 18. Write answer as a simplified radical. No Decimals!!!!
Answers
Answer: Therefore, the geometric mean of 8 and 18 is 12. Therefore, the geometric mean of 8 and 18 is 12.
Step-by-step explanation:
20% of what number is 30? Which equation and solution represents each situation?
Answers
Answer:
150
Step-by-step explanation:
The Sumner Museum had collected family photos of town residents for more than a
century. The museum director reported that between 1890 and 1900, the average family
photo had 5 family members in it. They had 163 family photos from that decade.
163 photos
1890-1900, 5 family members
About how many people would you expect to see in all of the photos from the decade
1890-1900?
Answers
Answer:
3
Step-by-step explanation:
444444444444
HELP ASAP. I need this in NOW.
Answers
Answer:
B
Step-by-step explanation:
when x=1 y=3.9 when x=2 y=7.8 and so on
Help!!!! I WILL GIVE BRAINLIEST !!!!
Answers
What is the circumference of the circle shown below?
Answers
Answer:
A. 25.12 meters
..........
Hope this helps
Solveeeee!!!!!!iiippp
Answers
the answer is less than 1/8 of a pizza. 1/4 divided by 6 = 1/4 x 1/6 = 1/24
and it is less than 1/8, pretty obvious.
Can someone plz help me with this one problem plz I’m being timed!!!!!
Answers
Answer:
#2
Step-by-step explanation:
type the equation in2 the desmos graphing calculator
Students were asked how they travel to school. The graph shows the results of the survey. Based on the graph, how many students out of 300 students can be expected to walk or bike to school?
Answers
Answer:
we need the graph in order to find the answer.
Step-by-step explanation:
Nick bought a video game for $55, which has 20% off the original price. What
was the original price?
Answers
Answer:
I think it is $66 at first sorry if wrong
can someone pls help me?? I’m so bad at math
Answers
Answer:
the first one is y=x-1/2 and the second one is y=-3x+1
Step-by-step explanation:
75% of what number is 12
Answers
Answer:
16
Step-by-step explanation:
PLEASE HELPPPP I GIVE BRAINLIEST!!!
Answers
the crystal clear window washing company washed 1/5 of a high-rise building's window on monday, 1/4 on tuesday, and 3/8 on wednesday.
what percentage of the buildings windows were not washed after three days?
Answers
Answer:
the correct answer is 17.5%
Step-by-step explanation: