B if not C, with the exponent of the coefficient
The factorization of the trinomial is A = 3 ( x - 2 ) ( x - 5 )
What is Factorizing?Brackets should be expanded in the following ways to factorize an expression
For an expression of the form A = a ( b + c ) , the expanded version is given by A = ab + ac, i.e., multiply the term outside the bracket by everything inside the bracket
For an expression of the form A = ( a + b ) ( c + d ) , the expanded version is given by A = ac + ad + bc + bd, in other words everything in the first bracket should be multiplied by everything in the second.
Given data ,
Let the expression be represented as A
Now , the value of A is
A = 3x² - 21x + 30 be equation (1)
On simplifying , we get
Taking 3 as the common factor of the expression , we get
A = 3 ( x² - 7x + 10 )
A = 3 ( x² - 2x - 5x + 10 )
On factorizing , we get
A = 3 ( x - 2 ) ( x - 5 )
Hence , the expression is A = 3 ( x - 2 ) ( x - 5 )
To learn more about factorizing click :
https://brainly.com/question/804076
#SPJ7
What is the value of the expression n(8n/10) when n =
5?
Answer:
(8n/10)
8 × 5 = 40
40 ÷ 10 = 4
Amelia has $25 to spend on makeup this week she loves lipstick each lipstick tube cost $4 what is the maximum number of lipsticks that she can purchase
one step inequality word problems
Answer:
ok so x is how many she can buy so
4x≤25
x=6.26
so she can buy 6
Hope This Helps!!!
Solve for x in the triangle.
Answer:
A. 1.7
Step-by-step explanation:
x = 1.74303
If rounded, 1.7
Answer: 100% correct
1. A. 1.7
2. D. 64.4
3. A= 140, E= 24, and F= 16
4. 106 mi
Step-by-step explanation:
10
Find the area of the semicircle.
Either enter an exact answer terms of ar or use 3.14 for at and enter your answer as a decimal.
units2
Answer: 39.25
========================================
Work Shown:
d = diameter = 10
r = radius = d/2 = 10/2 = 5
A = area of a full circle
A = pi*r^2 = 3.14*5^2 = 78.5
Cut this in half to get the area of a semicircle (aka half circle)
(78.5)/2 = 39.25
This result is approximate.
I need this answered ASAP. A baseball hit by
a player in the major leagues
can leave the bat at a speed
of 110 miles per hour.
Suppose a batter hits a ball
at that speed directly back
to the pitcher’s mound,
about 61 feet from home
plate. To the nearest tenth of
a second, how long does it
take the ball to reach the mound?
Consider the polynomial p(x) = 16x4 - 81y4. Which of the following are equivalent expressions?
Select all that apply.
Answer:
Second expression and Last expression
Step-by-step explanation:
Second expression and Last expression
1. [tex](4x^2-9y^2)(4x^2-9y^2)[/tex]
[tex]4x^2(4x^2-9y^2)-9y^2(4x^2-9y^2)[/tex]
[tex]16x^4 -36x^2y^2 -36x^2y^2+81y^4[/tex]
[tex]16x^4 -72x^2y^2+81y^4[/tex]
2. [tex](4x^2-9y^2)(4x^2+9y^2)[/tex]
[tex]4x^2(4x^2+9y^2)-9y^2(4x^2+9y^2)[/tex]
[tex]16x^4+36x^2y^2-36x^2y^2-81y^4[/tex]
[tex]16x^4-36y^4[/tex]
3. [tex](4x^2+9y^2)(2x-3y)(2x-3y)[/tex]
[tex](4x^2+9y^2)(4x^2-6xy-6xy+9y^2)[/tex]
[tex](4x^2+9y^2)(4x^2-12xy+9y^2)[/tex]
[tex]16x^4-48x^3y+36x^2y^2+36x^2y^2-108xy^3+81y^4[/tex]
[tex]16x^4 -48x^3y+72x^2y^2-108y^3+81y^4[/tex]
4. [tex](4x^2+9y^2)(2x+3y)(2x+3y)[/tex]
[tex](4x^2+9y^2)(4x^2+6xy+6xy+9y^2)[/tex]
[tex](4x^2+9y^2)(4x^2+12xy+9y^2)[/tex]
[tex]16x^4+48x^3y+36x^2y^2+36x^2y^2+108xy^3+81y^4[/tex]
[tex]16x^4+48x^3y+72x^2^2+108xy^3+81y^4[/tex]
5. [tex](4x^2+9y^2)(2x+3y)(2x-3y)[/tex]
[tex](4x^2+9y^2)(4x^2-6xy+6xy-9y^2)[/tex]
[tex](4x^2+9y^2)(4x^2-9y^2)[/tex]
[tex]16x^4-36x^2y^2+36x^2y^2-81y^4[/tex]
[tex]16x^4-81y^4[/tex]
Hope this helps!
What is 3/4 divided by 7/8?
Answer:
0.85714285714
Answer:
6/7
Step-by-step explanation:
Reduce the expression, if possible, by cancelling the common factors.
Hope this helps! Have a great day!!
What is the measure of angle PBQ
Answer:
m∠PBQ=51
Step-by-step explanation:
By vertical angles theorem, ∠PBQ ≅ ∠LBM, so m∠PBQ=m∠LBM.
And since ∠LBM & ∠LBQ are supplementary, we'll write,
m∠LBM+LBQ=180°
3x+(4x+61)=180°
Let's solve for x:
7x=119
7x/7=119/7
x=17
So...
m∠LBM=3(17)
m∠LBM=51
This means that m∠PBQ=51
Hope this helps! :)
Write the standard form of the line that contains a slope of 12 and y-intercept of 3. Include your work in your final answer.
Answer:
y = 12x+3
Step-by-step explanation:
y = mx+c
m is the gradient/slope
c is the y intercept
so m is 12 and c is 3
list the next four multiples of the unit fraction 1/2
Answer:
1, 3/2, 2, 5/2
Step-by-step explanation:
1/2 x 2 = 1
1/2 x 3 = 3/2
1/2 x 4 = 2
1/2 x 5 = 5/2
Answer: 2/4, 4/8, 8/16, 16/36
Step-by-step explanation: hope i help and brainlies pls
Brainliest if correct
Answer:
x = 19.Step-by-step explanation:
We have to simplify this equation.
Like this:
2 * x + 8 = 46.The closest number to x is 19:
2 * 19 + 8 = 46Solve:
2 * 19 + 8 = 46= 38 + 8 = 46= 46.x = 19.
Find the area of quadrilateral ABCD.
A. 20.2 units²
B. 20.4 units²
C. 37.66 units²
D. 46.66 units²
Find the value of x and y in parallelogram ABCD.
A) x = 13, y = 7
B) x = 15, y = 6
C) x = 1, y = 1
D) x = 6, y = 8
E) None of the answers are correct
Step-by-step explanation:
х-7=6 , х=13
2у-6=8 у= 7
А)
F(x)=2x+6, g(x)=4x^2+1; find (g • f)(1)
Answer:
257
Step-by-step explanation:
[tex]g\cdot{f}=4(2x+6)^2+1\\(g\cdot{f})(1)=4(2*1+6)^2+1=4\times64+1=257[/tex]
can I have help pls
2: A train leaves Cardiff at 10:45am. It takes 39 minutes to reach Bristol. What time did the train reach Bristol?
Answer:
11:24am
Step-by-step explanation:
10:45 to the nearest hour is 11am
It takes 15mins to reach the hour. (39-15=24)
Add the remaining 24minutes to the hour and you have your answer.
11:24am
tell whether the sequence is arithmetic if it is what is the common difference?
19, 12, 5, -2
no
yes; 1/7
yes;7
yes;-7
Answer:
(d) yes; -7
Step-by-step explanation:
The differences between terms are ...
12 -19 = -7
5 -12 = -7
-2 -5 = -7
These are all the same, so this difference is "common". A sequence in which terms have a common difference is an arithmetic sequence.
This sequence is arithmetic, with a common difference of -7.
Find the dimensions of a rectangle
having a perimeter of 38 meters
and an area of 84 square meters.
What is the length of the shorter side?
let’s decide whether the following points are on the line 2x=y - 7
(-8.6, -10.2)
Answer:
14.997
Step-by-step explanation:
yea yeaaa i knowwww
Need help!!!
Select the correct answer.
Which table represents a quadratic relationship?
The table which represents a quadratic relationship is in option [tex]D[/tex].
What is quadratic relationship ?A quadratic relationship is a mathematical relation between two variables that follows the form of a quadratic equation.
Quadratic sequence [tex]=an^2 +bn+c[/tex]
So, According to the definition mentioned above if table follows the form of a quadratic equation then it is in quadratic relationship.
So,
To find out quadratic relationship,
We will find first difference in every table and then second difference (Second difference is the difference between the first difference).
We have,
Table A;
[tex]\left \begin{array}{ccccc}x& \ &f(x)&First\ Difference & Second\ Difference \\-2& &4&2-4=-2\\-1& &2&1-2=-1&-1+2=1\\0& \ &1&0.5-1=-0.5&-0.5+1=0.5\\1& &0.5&0.25-0.5=-0.25&-0.25+0.5=0.25\\2& &0.25&0.125-0.25=-0.125\\3& &0.125\end{array}\right[/tex]
So, In the above table we can see that second difference is not equal that means it is not in quadratic relationship.
Now,
Let Table D;
[tex]\left \begin{array}{ccccc}x& \ &f(x)&First\ Difference & Second\ Difference \\-2& &-23.4&\\-1& &-23.2&-23.2+23.4=-0.2&0.2-0.2=0\\0& \ &-23&-23+23.2=-0.2&0.2-0.2=0\\1& &-22.8&-22.8+23=-0.2&0.2-0.2=0\\2& &-22.6&-22.6+22.8=-0.2\\3& &-22.4&-22.4+22.6=-0.2\end{array}\right[/tex]
So, here in this table, we can see that second difference is equal that means it is in quadratic relationship.
Hence, we can say that the table which represents a quadratic relationship is in option [tex]D[/tex].
To know more about quadratic relationship click here
https://brainly.com/question/17109031
#SPJ3
When a number is decreased by 40% of itself, the result is 90. What is the number?
__________________
DefinitionsPercentage - In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%"
Solvewe can substitute 40% for 0.4x and make an equation
[tex]x-0.4=90[/tex]
simplify
[tex]0.6x=90[/tex]
divide both sides by 0.6
[tex]x=150[/tex]
If each of the numbers in the following data set were multiplied by 18, what
would be the new median of the data set?
14, 20, 18, 58, 71, 36, 28
what would be the new median of the data set ?
The answer is 28 or 504. My explanation....
ALRIGHT! So, it took me a little while to do it all.... since I wasn't really sure if it was already multiplied by 18 or not.
So the normal numbers in order from least to greatest,(because that's easier)
14, 18, 20, 28, 36, 58, 71.
The new numbers I multiplied by 18 are...
252, 324, 360, 504, 648, 1044, 1268.
When I put it like that you can clearly see the new median. 28 and 504!
Suppose that y varies directly with x, and y=6 when x= 15.
(a) Write a direct variation equation that relates x and y
Equation: ?
1 (b) Find y when x = 20
y = ?
what is 4,357.25 rounded to the second decimal
what is 4,357.25 rounded to the second decimal
A:4,400
4. Find the length of the hypotenuse of a triangle with the coordinates (1, —2), (1, 7), and (13, —2)
help pls brainliest gib
Answer:
answer attached
Step-by-step explanation:
answer attached
hope this helps!
Pls help rn i need help quickly
Answer:
800 mm^2
Step-by-step explanation:
(25+7)*(23+8) - 8*10 - 7*5 - 7*11
= 800 mm^2
HELP ME FIND MIDPOINT
Answer: (-1/2, 0) which is the same as saying (-0.5, 0)
================================================
Explanation:
The x coordinates of A and B are -2 and 1 respectively.
Add up those values to get -2+1 = -1
Then cut that result in half: -1/2 = -0.5
This is the x coordinate of the midpoint.
--------
Repeat for the y coordinates:
Add: 1 + (-1) = 0
Cut in half: 0/2 = 0
The y coordinate of the midpoint is 0
-------
Overall, the midpoint is located at (-1/2, 0) which is the same as writing (-0.5, 0). This is where the segment AB crosses the x axis.
Find the area of the regular 18-gon with radius 11 mm
Answer:
36
Step-by-step explanation:
HELP PLEASE, IF YOU GET IT RIGHT YOU WILL RECEIVE BRAINIEST !!!!
Answer:
ok it is very hardest app
Determine which point is the solution to the given system.
y= -7/2 x + 32
y= 4/5 x -11
A. (10,-3)
B. (8,4)
C. (15, 1)
D. (12,-10)
Answer:
WHAT UP
Step-by-step explanation:
DO THIS AND THAT LOL