Verify the geometrical representation ofI) (a+b+c)^2
Answers
Presumably you're talking about a geometrical interpretation of the identity,
(a + b + c)² = a ² + b ² + c ² + 2 (ab + ac + bc)
See the attached sketch for a visual "proof" of it.
Related Questions
Please someone help best answer gets brainleist
Answers
Answer:
B
Step-by-step explanation:
it will never cross so it's b
I just did the problem -(-8) -(-2) and i think the answer is 12. am i right
Answers
Answer:
I got 10 as the answer
Step-by-step explanation:
-(-8)-(-2)
8-(-2)
8+2
10
Answer:
is it -(-8) -(-2) or
(-8) -(-2) cause
I think you can use a number line which comes to a +6
The price of a train ticket from Lexington to Orlando is normally $128.00. However, children under the age of 16 receive a 65% discount. Find the sale price for someone under the age of 16.
Answers
Answer:
the answer is 83.20 dollars
3x - 2y = 8
2x + 2y = -8
Answers
Answer:
(0, - 4 )
Step-by-step explanation:
3x - 2y = 8 → (1)
2x + 2y = - 8 → (2)
Adding (1) and (2) term by term will eliminate the y- term
5x + 0 = 0
5x = 0 , then
x = 0
Substitute x = 0 into either of the 2 equations and solve for y
Substituting into (2)
2(0) + 2y = - 8
0 + 2y = - 8
2y = - 8 ( divide both sides by 2 )
y = - 4
solution is (0, - 4 )
2. y=-1x-4
Hope this helps :)
Karen wanted to cut three lengths of wood from a 10 foot long board. The length of three pieces she wanted to were 1 2/3 feet 2 3/4 feet and 3 5/6 feet
Answers
[tex]\\ \sf\longmapsto 1\dfrac{2}{3}+2\dfrac{3}{4}+3\dfrac{5}{6}[/tex]
[tex]\\ \sf\longmapsto \dfrac{5}{3}+\dfrac{11}{4}+\dfrac{23}{6}[/tex]
[tex]\\ \sf\longmapsto \dfrac{20+33+46}{12}[/tex]
[tex]\\ \sf\longmapsto \dfrac{99}{12}[/tex]
[tex]\\ \sf\longmapsto 8.2ft[/tex]
Rope left
[tex]\\ \sf\longmapsto 10-8.2=1.8ft[/tex]
1¾ ft ≈ 1,75 ft
Step-by-step explanation:[tex] \sf 1\frac{2}{3} + 2 \frac{3}{4} + 3\frac{5}{6} [/tex]
[tex] \sf = \frac{3 + 2}{3} + \frac{4 \times 2 + 3}{4} + \frac{6 \times 3 + 5}{6} [/tex]
[tex] = \sf \frac{5}{3} + \frac{11}{4} + \frac{23}{6} [/tex]
[tex] \sf = \frac{5 \times 4 + 11 \times 3}{3 \times 4} + \frac{23}{6} [/tex]
[tex] = \sf \frac{20 +33 }{12} + \frac{23}{6} [/tex]
[tex] \sf = \frac{53}{12} + \frac{23}{6} [/tex]
[tex] = \sf \frac{53}{12} + \frac{23 \times 2}{6 \times 2} [/tex]
[tex] \sf = \frac{53}{12} + \frac{46}{12} [/tex]
[tex] \sf = \frac{99}{12} [/tex]
[tex] \sf = \frac{10}{1} - \frac{99}{12} [/tex]
[tex] \sf = \frac{10 \times 12 - 99}{12} [/tex]
[tex] = \sf \frac{120 - 99}{12} [/tex]
[tex] \sf = \frac{21}{12} [/tex]
= 1¾ ft ≈ 1,75 ft
Write an equation with infinitely many solutions that has the Expression 3x+6 on the left side of the equal side. Demonstrate that your equation has infinitely many solutions.
Answers
what is the eleventh term of an arithmetic sequence in which a1=3 and d=6
helppp
Answers
Answer:
-25
Step-by-step explanation:
Using formula for nth term,
a11=a+10d.
Herea is −3 and d is −2, hence
a11=−3+10(−2)=−25
PLEASE HELP ASAP!
4y - 5x = 6 - 3x
Solve for X
Answers
Answer:
X= -2
Step-by-step explanation:
A card is drawn from a 52-card deck, the result is written down, and then the deck is shuffled. A card is drawn. What is the probability that at least one of the two cards was red? Write your answer as a percent
Answers
Answer:
1/2 or 50%
Step-by-step explanation
Answer:
75%
Step-by-step explanation:
To find probability of one being red, do 1 minus probability of being black.
1/2*1/2=1/4
1-1/4=3/4
=75%
im struggling with this lol
Answers
Answer:
its not funny I get
even I am confused
WILL MARK THE BRAINLIST!!
In the previous activity, you found an equation with a negative unit rate, y = -50x – 100. This equation gave the depth of a submarine, y, given time, x. It assumes that the submarine starts at a depth of 100 feet, and then starts descending at a rate of 50 feet per minute. In this activity, you will graph the equation.
Part A
Graph the equation y = -50x – 100 by going to your math tools and opening the Graph tool. Set the scale of the y-axis to range from -150 to 50, and set the x-values to range from -5 to 10. Paste a screenshot of your graph in the answer field.
Answers
Answer:
Step-by-step explanation:
Answer from plato.
Which list is in order from least to greatest? A. 29, 15−−√, π, 4.1 B. 29, π, 15−−√, 4.1 C. 4.1, 15−−√, π, 29 D. 4.1, π, 15−−√, 29
Answers
Answer:
From least to greatest;
[tex]\pi \:, \sqrt{15} , \: 4.1 \: ,29[/tex]
Step-by-step explanation:
[tex]\pi = 3.14 \\ \sqrt{15} = 3.87 \\ 4.1 = 4.1 \\ 29 = 29[/tex]
I hope I helped you^_^
Please answer number 11 thank you!
Answers
Answer:
9 portions and 15 grams in each portion
25% of 94?
please explain!
Answers
Answer:
23.5Step-by-step explanation:
25% of 94
[tex] = 94 \times \frac{25}{100} [/tex]
[tex] = 94 \times \frac{1}{4} [/tex]
= 23.5 (Ans)
Answer:
25% of 94 is 23.5
Step-by-step explanation:
step 1: Convert the problem to an equation using the percentage formula: P% * X = Y.
step 2: take your percent then turn it into a decimal like 10% is 0.10
step 3: then multiply your decimal by your whole number like 0.10 * 65 to get your answer
plz give brain if this helps and is correct thx <(^w^)>
You don’t have to do all of them only some if you want this these are my last question!
Find the value of x that makes the lines u and v parallel.
I will mark you
Answers
Answer:
Q11. 20x=120° (vert opp angles)
x=120÷20
=10
Q12. x+68°=60° (vert opp angles)
x=60-68
=-8
Q13. 80°+x+106°=180° (int angles, u//v)
x+186°=180°
x=180-186
=-6
Q14. 6x+8°=50°
6x=50°-8°
=42°
x=42÷6
=7
Write the equation of the line that is perpendicular to y = -5x + 1 and passes through the point (2,-1). slope intercept equation please help
Answers
Answer:
[tex]y = \frac{1}{5} x - \frac{7}{5} [/tex]
Step-by-step explanation:
Look at graph above⤴⤴⤴
Hope this helps :)
Write the mixed number as an improper fraction.
one and seven-eighths
A. fourteen-eighths
B. fifteen-eighths
C. Start fraction seven over fifteen end fraction
D. start fraction 8 over 15 end fraction
Answers
when you have a mixed number , you can multiply the denominator by the whole number, then add the numerator. 8 x 1 = 8, + 7 = 15. the denominator stays the same, so the answer is 15/8. hope this helped!!
Devon records 4 hours of reality shows on her DVR. She records comedy shows for 3/8 of that amount of time. Devon watches all the reality and comedy shows in half-hour sittings.
Part A: Find the number of hours of comedy shows that devon records.
Part B: Find the total number of hours of reality and comedy shows that devon records.
Part C: Find the number of half-hour sitting needed to watch all the shows.
PLZ HELP DUE TODAY 100 POINTS!!
Answers
#1
We need 3/8 of 4hours[tex]\\ \rm\rightarrowtail 3/8(4)=3/2=1.5h[/tex]
#2
Rest after comedy is Reality shows.
4-1.5=2.5h1.21 rounded to the nearest whole number
Answers
1 is the whole number and to round you look one place over, in this case the number one over to the left if 2. If the number to the left is 5 or more you “raise the score” making the number your rounded go up one. If the number is 4 or less, you “let it rest” meaning the number stays the same. Once you round, you drop every number behind the number you used to round. So instead or 1.21 it’s 1.2
What is the equation of the linear model in point-slope form that includes the point (-3, 1) and has a slope of 3?
Please show work for brainliest
Answers
Answer:
A) You would use the two points that are closest to the graphed line
(2,7) and (8,13)
B) Slope = change in Y over the change in X:
Slope = (13-7) / (8-2) = 6/6 = 1
Slope = 1
c) Point slope is written as y -y1 = m(x-x1) where m is the slope y1 is the first Y value and x1 is the first x value.
Equation is: y-7 = x-2
d) To rewrite y -7 = x-2 in slope intercept form, you need to isolate y.
To isolate Y add 7 to both sides:
y = x +5
Step-by-step explanation:
The equation of line which passes through point (-7,-2) and having slope 3 is y = 3x + 10.
What is Algebraic expression ?
Algebraic expressions are numbers expressed using letters or alphabets without specifying their values. Algebra taught us how to express unknown values using letters such as x, y, and z. There can also be a single value that is placed before and multiplied by a variable in an algebraic expression in addition to these letters, which are called variables.
Here, it is given that line passes though point (-3,1) and having slope of 3.
Now, Let us find the equation of the line using point-slope equation of line :
(y-y₁) = m(x-x₁)
Substituting all the values in above equation to get the equation of line :
(y-1) = 3(x-(-3))
y -1 = 3x + 9
y = 3x + 9 + 1
y = 3x + 10
Therefore, the equation of line which passes through point (-7,-2) and having slope 3 is y = 3x + 10.
check and know more about line here :
brainly.com/question/14914699
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I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D
Answers
Answer:
it is between a c because they are both 12
Step-by-step explanation:
The basketball team practices 3 and 1/4 hours on Monday and practiced 2 and 1/3 hours on Tuesday. How many hours has the team practiced so far this week?
Answers
Answer:
5 7/12
Step-by-step explanation:
3 1/4 + 2 1/3
Multiply the fractions by a number in order to have the same denominator. ( in this case 12)
3 3/12 + 2 4/12
Add straight across
5 7/12
write the equation of the line that is parallel to y=2x+1
Answers
Answer:
y = 2x, y = 2x+2, y=2x+100, y=2x-57, etc.
Step-by-step explanation:
Any line with the same slope will be parallel.
ayuda
encuentra el valor de la hipotenusa
Answers
Answer:
113. x = √65 cm
114. x= 7.10 cm
Plz help me WILL MARK BRAINLIEST
plz serious answers only and show work no links or will be reported
Answers
Classify the system of equations and identify the number of solutions.
4x + 2y = −8
6x + 3y = 9
inconsistent; none
consistent, dependent; one
inconsistent; one
consistent, dependent; infinite
HELP ASAP PLS
Answers
Answer:
inconsistent, none
Step-by-step explanation:
Write both equations in slope-intercept form to see if the lines are parallel.
These two lines have slope m = −2 and different y-intercepts, therefore they are parallel.
Since the lines are parallel, the system is inconsistent and there are no solutions.
The system of equations 4x + 2y = −8 6x + 3y = 9 is inconsistent and has no solutions.
What is system of Equations?A system of equations is a collection of two or more equations with a same set of unknowns.
We need to write both equations in slope-intercept form to see if the lines are parallel.
4x+2y=-8
2y=-8-4x
y=-4-2x,
y=-2x-4, m₁=-2
and 6x+3y=9
3y=9-6x
y=-2x+3, m₂=-2.
So two lines have slope m = −2 and different y-intercepts,
It means two line are parallel.
Since the lines are parallel, the system is inconsistent and there are no solutions.
Hence 4x + 2y = −8 , 6x + 3y = 9 is inconsistent and has no solution.
To learn more on system of equations click:
https://brainly.com/question/24065247
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could someone name some games that are unblocked that I can play on a school computer?
lol 50 pts to answer
Answers
Answer:
Agar.io
Buildroyale.io
Gats.io
Krunker.io
Narwhale.io
1v1.lol
1v1.fail
Or look up your favorite computer games but put (Gooogle Sites) at the end
Step-by-step explanation:
Which is the area between the x-axis and y=x from x=1 to x=6
Answers
Answer:
I am going to answer using calculus. Let me know if you instead were looking for an algebraic method. Take the definite integral from 3 to 6 of xdx. [x^2/2]3 to 6= 18-(9/2)= (36-9)/2= 27/2. The area is 27/2
Directions: Divide. Put your answer inside the box.1/4 ÷ 2/3 = ____
Answers
Answer:
3/8
Step-by-step explanation:
[tex]\frac{1}{4} / \frac{2}{3}\\\\\frac{1}{4} *\frac{3}{2} = \frac{3}{8} \\\\[/tex]
4(y-2)=-0.6(y+0.3 what is the answer and how to do it
Answers
Answer:Solution for 0.3(y-2)+0.4y=0.3y-0.6 equation:
0.3(y-2)+0.4y=0.3y-0.6
We move all terms to the left:
0.3(y-2)+0.4y-(0.3y-0.6)=0
We add all the numbers together, and all the variables
0.4y+0.3(y-2)-(0.3y-0.6)=0
We multiply parentheses
0.4y+0.3y-(0.3y-0.6)-0.6=0
We get rid of parentheses
0.4y+0.3y-0.3y+0.6-0.6=0
We add all the numbers together, and all the variables
0.4y=0
y=0/0.4
y=0