Given the following polynomials
x = (a + b + c)^2
y= a^2 + b^ 2 + C^2
z = ab + bc + ac
Which identity is true?
A. x=y-z
B. x=y+z
C. x=y-2z
D. x=y+2z
Answer:
D. x=y+2z
Step-by-step explanation:
if you expand out the first equation (x) you will get: a^2+b^2+c^2+2ab+2bc+2ac
then looking at all of the choices, it can be seen that the third equation (z) needs to be multiplied by to get 2ab+2bc+2ac and then added to the second equation (y) which would result in D being the correct answer.
D. x=y+2z
What is the second number in the sequence?
Answer:
Step-by-step explanation:
Let "n" be the second odd number in the sequence
(n - 2) + n + (n + 2) + (n + 4) + (n + 6) = 135
5n + 10 = 135
5n = 125
n = 25
23 + 25 + 27 + 29 + 31 = 135
plz help me to answer
22/3 sorry I accidentally deleted steps
Find m
∠
K
M
L
∠KML.
Answer:
m∠KML = 35°
Step-by-step explanation:
This is an isosceles triangle because 2 of the sides are equal so we know the 2 unknown angles are equal. The 3 angles of any triangle always add up to 180° so since we know 1 angle is 110° then the 2 unknown angles must add up to 70° (because 180° minus the known 110° leaves us with 70°). Since we know the 2 unknown sides are equal 70° ÷ 2 = 35°. So, m∠KML = 35°
Help help help help math math
1 7.26 × 0.22 =
2 17.92 × 0.64 =
3 7.65 × 0.85 =
4 36.20 ×0.05 =
5 31.85 ×0.91 =
please answer it cause my calculator is broken
Answer:
1) 1.5972
2) 11.4688
3) 6.5025
4) 1.81
5) 28.9835
Help hep help help math math
Answer:
-2
Step-by-step explanation:
the input, or domain is always replacing x
y=-2x+6
y=-2(4)+6
y=-8+6
y=-2
factor x[tex]x^{2} -81[/tex]
Step-by-step explanation:
[tex]x^2-81=x^2-9^2=(x-9)(x+9)\\\\\text{Used}\\\\a^2-b^2=(a-b)(a+b)[/tex]
Help me pllllllllllease! I have only got 2 minutes!
When I divide an integer by 15, the remainder is an integer from 0 to 14. When divide an integer by 27, the remainder is an integer from 0 to 26. For instance, if the integer is 100 then the remainders are 10 and 19, which are different. How many integers from 1 to 1000 leave the same remainders after division by 15 and after division by 27?
Answer:
Two minutes for what???
Which equation is correct and shows that 42 is 7 times the size of 6?
42 × 2 = 7
42 × 6 = 7
42 ÷ 2 = 7
42 ÷ 6 = 7
calculate the exact value of (5/12-11/13)/3/26
Answer:
-67/12168
Step-by-step explanation:
(5/12-11/13)/3/26 Find the least common denominator to get
65/156 - 132/156 = -67/156
-67/156 /3 /26 multiply -67/156 by 1/3 to get -67/468
-67/468 /26 multiply -67/468 by 1/26 to get 12168
-67/12,168
The time it takes to transport goods has __________ over time, causing trade to __________. A. increased . . . decrease B. decreased . . . decrease C. decreased . . . increase D. increased . . . increase Please select the best answer from the choices provided A B C D
Answer: C. decreased . . . increase.
As technology is advancing it requires less time and effort to do almost anything. So for tranportation as well i think it will take less time to do it. Thus logically people would want to trade more because the transport goods take less time. I guess?
Answer:
C
Step-by-step explanation:
Cumulative Exam 2021
Merry Christmas <3
P.S. Have a good winter break :)
Question 9 of 10 What is the length of DE?
Answer:
I think it's B.
Step-by-step explanation:
9 6/7 divide 3? explain your answer
Answer:
it is a decimal which is 3.28571428571
Step-by-step explanation:
i am in college
Step-by-step explanation:
[tex] \\ 9 \frac{6}{7} \div 3[/tex]
Change the mixed fraction into improper fraction.
[tex] \\ = \frac{69}{7} \div 3[/tex]
Reciprocal 3 for cross multiplication.
[tex] \\ = \frac{69}{7} \times \frac{1}{3} [/tex]
Divide 69 by 3.
[tex] \\ = \frac{ \cancel{69}}{7} \times \frac{1}{ \cancel{3}} [/tex]
[tex] \\ = \frac{23}{7} [/tex]
Divide the result into mixed fraction or decimal.
[tex] \\ = 3.285 \: \: or \: \: 3 \frac{2}{7} [/tex]
[Answer]
PLS HELP BEST ANSWER=BRAINLIEST
3a² - ac + 2c - 6a/ 3a - c = a - 2
i have been looking everywhere but i cannot find the steps on how to simplify/solve this
PLS SHOW STEPS
Answer:
a-2=a-2
Step-by-step explanation:
Here it is, you just have to notice that the numerator has common factors alternated. You will then collect the same parentheses and simplify with the denominator.
Answer:
Step-by-step explanation:
Parentheses are missing in your problem statement if you intend to simplify ...
[tex]\dfrac{3a^2-ac+2c-6a}{3a-c}\\\\=\dfrac{a(3a-c) -2(3a-c)}{3a-c}\qquad\text{factor pairs of terms}\\\\=\dfrac{(a-2)(3a-c)}{(3a-c)}\\\\=\boxed{a-2}\qquad\text{cancel common factors}[/tex]
The "steps" are ...
factor numerator (and denominator, if necessary)cancel common factorsDASH
Hollywood Academy of Arts & Sciences
Select the correct answer. Press the Submit button.
Use the image and information you have read to answer.
How is the object in this image similar to the AUV
developed by engineers at MIT?
A
They both cause damage to deep-sea coral reefs.
B
They both stay motionless at all times.
They both must remain on the bottom of the ocean.
D They both squirt jets of water to hold their position.
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O
Answer:
The answer is b
Step-by-step explanation:
Happy holidays ;)
What is the value of x + 2x when x=2/3?
Answer:
2
Step-by-step explanation:
2/3+2(2/3)
2/3+2×2/3
2/3+4/3
2+4/3
6/3
=2
Which expression is equal to 6/7?
Answer:
Option C
The answer is 6 ÷ 7
Step-by-step explanation:
6/7 which means 6 divided by 7 i.e., 6 ÷ 7
Thus, The answer is 6 ÷ 7
-TheUnknownScientist 72
Graph the equation. y= - 2x
Answer: The picture
Step-by-step explanation: if you mean graph that means graph the coordantes.
The plans for a shed call for a rectangular floor with a perimeter of 186 ft. The length is two times the width. Find the length and width.
Answer:
length: 62 ft
width: 31 ft
Step-by-step explanation:
Let w represent the width. Then the length is 2w and the perimeter is ...
P = 2(L+W)
186 = 2(2w +w)
31 = w . . . . . . . . . divide by 6
2w = 2(31) = 62
The length of the shed is 62 feet; its width is 31 feet.
Write the following fraction as percent 7/10
(I WILL GIVE BRAINLIEST) PLEASE HELP!!
Answer:
C. I,II,III
Step-by-step explanation:
Absolute value is the distance of a number from 0 on a number line. 6 is 6 units from 0, therefore this option is correct. -6 is 5 units to the left of 0, but it is still 6 units away, therefore this option is correct. 6 is 6 units away from 0, therefore, III is correct. But 0 is 0 units away from 0, therefore this option is incorrect.
write an equation for the line in standard form that passes through the following points (-2,-3) (-3,-6)
ANSWER: y = 3x + 3
Ok done. Thank to me :>
Solve the following system: 5x + 4y = 6 -2x – 3y = -1
Answer:
[tex]\left \{ {{y=-1} \atop {x=2}} \right.[/tex]
Step-by-step explanation:
[tex]\left \{ {{5x+4y=6} \atop {-2x-3y=-1}} \right. <=> \left \{ {{10x+8y=12} \atop {-10x-15y=-5}} \right.<=> \left \{ {{-7y=7} \atop {-10x-15y=-5}} \right. <=> \left \{ {{y=-1} \atop {-10x-15y=-5}} \right. <=> \left \{ {{y=-1} \atop {-10x+15=-5}} \right. <=>\left \{ {{y=-1} \atop {-10x=-20}} \right. => \left \{ {{y=-1} \atop {x=2}} \right.[/tex]
Help help help help help
Answer:
8
Step-by-step explanation:
The answer is 8 because there are 2 possibilities for each coin you flip heads and tails so if you flip three coins all at once you get 2*2*2, which equals to 8.
I hope this help!
purchase good from naresh rs 9000 and isued a cheque of rs 4000 only as payment
Answer:
that means you have a 5000 dollar debt
Hope This Helps!!!
find answer
the rounded one
Answer:
229.6 square units
Step-by-step explanation:
19.9×16.8=334.32
19.9-4-4=11.9
16.8-4-4= 8.8
11.9×8.8= 104.72
334.32-104.72= 229.6 sq units
Select All equivalent expressions to 4( x + 2)
Answer:
3x 3-x and 3+x
!PLEASE ANSWER ASAP! THANK YOU!
if g(n) varies inversely with n and g(n) = 9 when n = 4 then find the value when g(n)=8.
round final answer to the tenths place. if answer is a whole number then put a zero in the tenths place before entering your answer.
Answer:
Step-by-step explanation:
I'm ASSUMING you want to find n where g(n) = 8
g(n) = a/n
g(4) = 9 = a/4
a = 36
g(n) = 8 = 36/n
n = 36/8 = 4.5
In AJKL, j = 75 cm, k = 23 cm and
Answer:
The length of side j is 11.85cm
Step-by-step explanation:
Given that
In triangle JKL,
Side k=LJ=3.7cm
To find side j=KL:
By using sine rule,
We can write as
Using property of triangle,
Thus,
The length of side j is 11.85cm