Someone help me please. I don't just want the answer, I need an explanation on how it's done too.
Answers
Answer:
Below.
Step-by-step explanation:
f) (a + b)^3 - 4(a + b)^2
The (a+ b)^2 can be taken out to give:
= (a + b)^2(a + b - 4)
= (a + b)(a + b)(a + b - 4).
g) 3x(x - y) - 6(-x + y)
= 3x( x - y) + 6(x - y)
= (3x + 6)(x - y)
= 3(x + 2)(x - y).
h) (6a - 5b)(c - d) + (3a + 4b)(d - c)
= (6a - 5b)(c - d) + (-3a - 4b)(c - d)
= -(c - d)(6a - 5b)(3a + 4b).
i) -3d(-9a - 2b) + 2c (9a + 2b)
= 3d(9a + 2b) + 2c (9a + 2b)
= 3d(9a + 2b) + 2c (9a + 2b).
= (3d + 2c)(9a + 2b).
j) a^2b^3(2a + 1) - 6ab^2(-1 - 2a)
= a^2b^3(2a + 1) + 6ab^2(2a + 1)
= (2a + 1)( a^2b^3 + 6ab^2)
The GCF of a^2b^3 and 6ab^2 is ab^2, so we have:
(2a + 1)ab^2(ab + 6)
= ab^2(ab + 6)(2a + 1).
Related Questions
Use completing the square to solve this quadratic equation.
Check all that apply.
x2 + 6x + 9 = 2
A. x = 3 + 4/5
B. x= -3 +2
c. x= 3 - 5
D. =-3-
Answers
Step-by-step explanation:
x² + 6x + 9 = 2
(x + 3)² = 2
x + 3 = ±sqrt(2)
x = -3 ± sqrt(2)
so, B and D are correct.
control :
(-3 + sqrt(2))² + 6(-3 + sqrt(2)) + 9 = 2
9 + 2 - 6sqrt(2) - 18 + 6sqrt(2) + 9 = 2
2 = 2
correct
(-3 - sqrt(2))² + 6(-3 - sqrt(2)) + 9 = 2
9 + 2 + 6sqrt(2) - 18 - 6sqrt(2) + 9 = 2
2 = 2
correct
(3 + sqrt(2))² + 6(3 + sqrt(2)) + 9 = 2
9 + 2 + 6sqrt(2) + 18 + 6sqrt(2) + 9 = 2
38 + 12sqrt(2) = 2
wrong.
(3 - sqrt(2))² + 6(3 - sqrt(2)) + 9 = 2
9 + 2 - 6sqrt(2) + 18 - 6sqrt(2) + 9 = 2
38 - 12sqrt(2) = 2
wrong.
Jill is buying a cookie kit to decorate cookies for her children during the holiday break. She will pay $2.50 per cookie and a $4 service fee. Which equation can be used to find y, the total cost to buy x cookies?
Answers
Answer:
4 + 2.5x=cost
Step-by-step explanation:
Help!!!!!!!!!!!!!!!!!
Answers
Use the bar diagram section
[tex]\boxed{\sf x+3=12}[/tex]
Answers
Answer:
x = 9
Step-by-step explanation:
x+3 = 12x+3-3 = 12-3x = 9Answer:
x=9
Step-by-step explanation:
[tex]x+3=12[/tex]
[tex]x+3-3=12-3[/tex] ( Subtract 3 from both sides)
[tex]x=9[/tex]
helpppppp asapppppp pls
A: 80°
B: 75°
C: 110°
D: 95°
Answers
Answer:
A. 80 degrees
Step-by-step explanation:
the equation at the top tells you that they are the same shape so you just need to find which angle one the first shape is equal to the angle H
What is the midpoint between points (4, 7) and (1, 1)?
Enter your answer down below
Answers
Answer:
(2.5, 4)
Step-by-step explanation:
(4, 7) (1, 1)
midpoint formula is ( (x1 + x2) / 2 , (y1 + y2) / 2 )
=>( (4 + 1)/2 , (7 + 1)/2 )
=> (5/2, 4)
=> (2.5, 4)
Natalie walked 35 mile in 12 hour. How fast did she walk, in miles per hour?
a. 3/10 mile per hour
b. 5/6 mile per hour
c. 1 1/5 miles per hour
d. 2 miles per hour
Answers
Answer:
almost 3 mph so I'm guessing (d) is the answer
Step-by-step explanation:
35 ÷ 12 = 2.9 miles per hour
1. 1. MP.5 Use Appropriate Tools Carla had a piece of rope that was 14 in. long. She used some of the rope for a crafts project. Now there is 14 in. left. How much rope did she use? Use the number line to help.
Answers
Answer:
4/8, 1/2
Step-by-step explanation:
7/8 - 3/8 = 4/8
4/8 >>> divide both by 4
4 divided by 4 = 1
8 divided by 4= 2
1/2 Inches
11. Which solution for the value of x in the figure below is incorrect? Explain a. 3X -44=x-24 2x - 44 = -24 2x = 20 (3x-440) b. 3x - 44 + x - 24 = 180 4x - 68 = 180 4x = 248 X = 10 (x-249) x = 62
Answers
Answer:
Theradius is 16 + 9 = 5. The equation of thecircle is2 2( x− 4) + ( y− 3) = 25. 53.54.x2 + y2 – 4 x ...
A linear model for the situation below passes through the origin. A manufacturer can produce 4,200 gears in 8 hours. How many gears can be made in 1 hour? values of the following algebraic expressions : L 3c2; 72/3; 5a&; ... 2x^-x^-3x-^ by 2 x'^ - 3 x~^ - x-^ ; a" - 1 + ft- " by a^ + ft~i ...
Step-by-step explanation:
A less character after a greater in10 = X. creases its value, as XI X+I, ... the root of each and set one above the other; as, % is the square root of 3X.180 / 90 / 15 lm | 12 VDC | 3 W module | 16 Wh battery | white | ... 48 VDC | PV 23,6 kW | 4 x VE SmartSolar MPPT 25 / 100-TR | 3x VE .
Someone plz help me :(
Answers
Answer:
B
Step-by-step explanation:
I only help you because you have nezuko as profile picture
1. At time t=0,500 bacteria are in a petting dish, and this amount triples every 15 days.
2.The half-life of a substances is 400 years. Initially, there are 100 g of substance.
3. Suppose that a couple invested Phone 50,000 in an account rate is 4,4% compounded annually.
Pakisagot pO pls pls ipapasa nA namin bukas
Answers
Answer:
4 better inbox
Step-by-step explanation:
You have been saving your money to buy a new pair of shoes. Three different stores are having a sale on them. Which store has the best deal?
Store A
Original Price: $70
Take 10% off.
Then, take 10 percent off that price.
Store B
Original Price: $80 Take $15 off.
Then, take 10 percent off that price.
Store C
Original Price: $90
Take 10% off.
Then, take $20 off that price.
A) Store A
B) Store B
C) Store C
Answers
Answer:
Store A would be the least expensive.
Step-by-step explanation:
Store A
70*0.10=7
70-7=63
63*0.10=6.30
63-6.30=57.70
$57.70
Store B
80-15=65
65*0.10=6.50
65-6.50=58.50
$58.50
Store C
90*0.10=9
90-9=81
81-20=61
$61
please please help! it’s due today and i don’t get it
Answers
Answer:
Well the value of (X) is 0
Step-by-step explanation:
Well the value of (X) is always 0
Will give brainliest
What is the equation of a line that is parallel to 2x+5y=10 and passes through the point (5, -4)?
Enter your answer in slope-intercept form (y=mx+b) in the box
Answers
Answer: The equation of a line that passes through the point (5, −4) and is parallel to the line whose equation is 2x + 5y = 10 is y = (-2/5)x - 2
Step-by-step explanation: The equation of a straight line is given by:
y = mx + b
where y, x are variables, m is the slope of the line and b is the y intercept.
The slope of the line 2x + 5y = 10 is:
2x + 5y = 10
5y = -2x + 10
y = -2/5x + 10
Hence the slope of the line 2x + 5y = 10 is -2/5
Since both lines are parallel, hence the slope of the other line is the same (-2/5). Hence the equation of the line is:
The equation of a line that passes through the point (5, −4) and is parallel to the line whose equation is 2x + 5y = 10 is y = (-2/5)x - 2
Isolate y
[tex]\\ \sf\longmapsto 5y=-2x+10[/tex]
[tex]\\ \sf\longmapsto y=-2/5x+2[/tex]
m=-2/5Parallel line has equal slope
Equation of line in point slope form
[tex]\\ \sf\longmapsto y-y_1=m(x-x_1)[/tex]
[tex]\\ \sf\longmapsto y+4=-2/5(x-5)[/tex]
[tex]\\ \sf\longmapsto 5y+20=-2x+10[/tex]
[tex]\\ \sf\longmapsto 2x+5y+10=0[/tex]
How many square metres of wallpaper are needed to cover a wall 8 metres long and 3 metres high? Can some one help me with this please?
Answers
Answer:
24 square meters of wallpaper
Step-by-step explanation:
Hope this helps.
PARALLEL PERPENDICULAR OR NEITHER
Answers
60x4= blank tens x 4 = blank tens = blank
Answers
Answer:6 tens
Step-by-step explanation:
Simple. 60 equals 6 tens so blank equals 6 tens
Blank tens = 6
Hope this helps :)
13. Find the distance between (-9, -1) and (-2,-6). Round to the nearest tenth.
A) 8.6
B) 12.1
C) 9.9
D) 13.0
Answers
Answer:
(A) 8.6
Step-by-step explanation:
distance =√((x_2-x_1)²+(y_2-y_1)²)
the actual distance is 8.602325.
rounded distance is 8.6
the answer is B:
I just did the question
Answers
Answer:
huh? did you mean to send in tgis as a question or something???
what is the solution of the equation w^2=4/9? show work.
Answers
Answer:
w = ± [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
w² = [tex]\frac{4}{9}[/tex] ( take square root of both sides )
w = ± [tex]\sqrt{\frac{4}{9} }[/tex] = ± [tex]\frac{\sqrt{4} }{\sqrt{9} }[/tex] = ± [tex]\frac{2}{3}[/tex]
Then
w = - [tex]\frac{2}{3}[/tex] or w = [tex]\frac{2}{3}[/tex]
The hypotenuse of a right triangle measures 19 cm and one of its legs measures 4 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.
Answers
Answer:
18.9
Step-by-step explanation:
[tex]\sqrt{54} \times \sqrt{54}[/tex]
Answers
Answer:
19.9202745546
Step-by-step explanation:
54 will be your answer...
the point (-2,6) is on a line with a slope of 3/4. If the point -8,k) is also on the same line what is the value of k
Answers
For a point with a slope 3/4 and which passes through the points (-2, 6) and (-8, k), the value of k is 1.5
The line passes through the points (-2, 6) and (-8, k)
That is, [tex]x_1=-2, y_1=6, x_2=-8, y_2=k[/tex]
The slope of the line, m = 3/4
The formula for calculating the slope of a line is given as:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Substitute [tex]x_1=-2, y_1=6, x_2=-8, y_2=k, m = \frac{3}{4}[/tex] into the formula above
[tex]\frac{3}{4} = \frac{k-6}{-8-(-2)} \\\\\frac{3}{4} = \frac{k-6}{-8+2}\\\\\frac{3}{4} = \frac{k-6}{-6}\\\\-6(3)=4(k-6)\\\\-18=4k-24\\\\4k=-18+24\\\\4k=6\\\\k=\frac{6}{4} \\\\k=1.5[/tex]
Therefore, the value of k is 1.5
Learn more here: https://brainly.com/question/25613656
Hi guys can you please help me??
THANK YOU SO MUCH
Answers
Answer: it’s 320cm^2
Step-by-step explanation:
How to calculate percentile.
Answers
Answer:
Step-by-step explanation:
Percentile Formula
P = (n/N) × 100
Where,
n = ordinal rank of the given value or value below the number
N = number of values in the data set
P = percentile
Or
Percentile = (Number of Values Below “x” / Total Number of Values) × 100
Answer:[tex]\frac{x}{x+....}[/tex]×100
Step-by-step explanation:
Daphne gave away 3 more than half of her apples. she gave awya 17 apple in all. How many apples did Daphne have originally?
Answers
Answer:
28
Step-by-step explanation:
Help Plz this is due tomorrow
Write slope-intercept form of a linear equation
(1,5) and (3,9)
(5,8) and (3,2)
(1,-5) and (0,3)
If you can, when you answer can you put the steps plz
thx
Answers
(1,5) and (3,9)
[tex]y = 2x + 3[/tex]
(5,8) and (3,2)
[tex]y = 3x - 7[/tex]
(1,-5) and (0,3)
[tex]y = - 8x + 3[/tex]
First you need to plot the pointsThen you will find the slope (m), by using rise over runThen we will find the y-intercept (b). To find the y-intercept, choose one of the points on the line.Then you write the equation in slope intercept form (y = mx + b)Hope this will help:)
Determine the error(s) in the problem below and use mathematical language
from module 2 to explain and answer correctly.
Answers
Step-by-step explanation:
error is in ∆ABC =~ ∆RST
because it is,
∆ABC =~ ∆RTS or ∆STR
because,
AB = RT
BC = TS
CA = SR
hope this answer helps you dear! take care.
The error is in labelling the triangles.
What are triangles?A triangle is a polygon with three sides having three vertices. The angle formed inside the triangle is equal to 180 degrees.
Given are two ABC and RST
Since, Δ ABC ≅ Δ RST
That gives,
AB = RS
BC = TS
CA = RT
In figure,
AC has been equated to RS, which is wrong or incorrect because the corresponding side of AC is RT
The correct labelling will be
AB = RS = 5
BC = TS = 5
CA = RT = 5.5
Hence, The error is in labelling the triangles.
For more references on triangles, click;
https://brainly.com/question/2773823
#SPJ2
How to predict the charge of monatomic ions.
Answers
Answer:
by gaining or losing electrons
Step-by-step explanation:
hope it helped
brainliest pls
432 women attended a conference. Women made up 72% of the total conference attendees.
Men made up the other 28% of attendees.
How many men attended the conference?
Answers
Answer:
168
Step-by-step explanation:
If entire number of attendees = y
then number of women = y* (72/100)
since y* (72/100) = 432 ( given)
y =( 432*100)/72
so, y = 600
since men made up the remaining 28% of attendees ,
number of men = y * (28/100) = 600* (28/100)
number of men = 168