Answer: Substitution
Step-by-step explanation:
GIVEN:
y=3x
2x+4y=12
Then, 2x+4(3x)=12
-----------------------------------------
Substitution: replacing one variable in terms of another variable.
As we can see from the given aspects, y=3x, and the conclusion expression has no y instead of 3x. This means it represented y in terms of x, which fits the definition of substitution that replaces one variable.
Hope this helps!! :)
Evaluate the following expression
Answer:
1/216
Step-by-step explanation:
6^-3= 1/6^3
=1/216
Answer;
6³-3³
6×6×6-3×3×3=
216-27=199
199-1=answer
my number eight dosent work please understand
6x^2=32x+24 Need help learning factoring please put work so I can understand
Answer:
I do not sorry
Answer:
2 • (x - 6) • (3x + 2)
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x2" was replaced by "x^2".
STEP 1 : Equation at the end of step 1
((2•3x2) - 32x) - 24
STEP 2 : Pulling out like terms
Pull out like factors :
6x2 - 32x - 24 = 2 • (3x2 - 16x - 12)
Trying to factor by splitting the middle term
Factoring 3x2 - 16x - 12
The first term is, 3x2 its coefficient is 3 .
The middle term is, -16x its coefficient is -16 .
The last term, "the constant", is -12
Step-1 : Multiply the coefficient of the first term by the constant 3 • -12 = -36
Step-2 : Find two factors of -36 whose sum equals the coefficient of the middle term, which is -16 .
-36 + 1 = -35
-18 + 2 = -16 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -18 and 2
3x2 - 18x + 2x - 12
Step-4 : Add up the first 2 terms, pulling out like factors :
3x • (x-6)
Add up the last 2 terms, pulling out common factors :
2 • (x-6)
Step-5 : Add up the four terms of step 4 :
(3x+2) • (x-6)
Which is the desired factorization
Final result : 2 • (x - 6) • (3x + 2)
Hope this helps~
Smoll mochi
Which diagram represents a line of symmetry of the regular octagon?
Answer:
B
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
Name the property that is being demonstrated
8-2=-2+8
Commutative Property
Associative Property
Zero Product Property
Multiplication Property of -1
Deductive Reasoning Property
Answer:
Commutative propertyStep-by-step explanation:
The "Commutative Laws" say: when we add we can swap numbers over and still get the same answer.
8 - 2 = (8) + (-2) = (-2) + (8) = -2 + 8
A board 91 cm long is to be cut into two parts so that the longer part is 10 cm more than twice as long as the shorter part. Find the length of each part.
Answer:
The parts are 27 cm and 64 cm long.
Step-by-step explanation:
Let the shorter part be x.
"The longer part is 10 cm more than twice as long as the shorter part."
shorter part: x
longer part: 2x + 10
total length: x + 2x + 10
total length: 91
x + 2x + 10 = 91
3x + 10 = 91
3x = 81
x = 27
2x + 10 = 2(27) + 10 = 54 + 10 = 64
Answer: The parts are 27 cm and 64 cm long.
Respuesta de -3x +12 =9
Answer:
x=1
Step-by-step explanation:
1). first combine -3+12. ( without the variable )
2). -3+12=9
3). therefore -3×1= -3
Answer:
x = 1
Step-by-step explanation:
-3x + 12 = 9-12 -12
-3x = -3-3x = -3Dividir -3 y -3
x = 1 porque -3/-3=1
NEED HELP ASAP WHOEVER GETS RIGHT I WILL GIVE BRAINLIEST
Answer:
D
Step-by-step explanation:
y2 is the y to the right, and -6 is to the right of -8 on the x-axis, so (x2, y2) = (-6,52). plug in the values and you get (52-48)/(-6--8), which equals 4/2, which simplifies to 2.
Answer:
D. 2
Step-by-step explanation:
See image for explanation
help..........me .................
Answer:
good morning foul human i cannot help you because i cant see your images if you could type them out i might have enough brain cells left to help you adios amigo
Step-by-step explanation:
() c=3
Write an equation in slope-intercept form for the like with slope 3/4 and y-intercept -2?
Answer:
y=3/4x-2
Step-by-step explanation:
For a slope intercept for, you have the formula y=mx+b where you would place the slope in the spot of m and the y-intercept in the spot of b.
please help ! Easy 7th grade math ! It’s talking about integers!!
- 32x - 40
Whats the first step that I should do
Answer:
Isolate the x. Secondly, divide by -32 by both sides.
Step-by-step explanation:
the product of two numbers is 12
Answer:
1x12
2x6
3x4
4x3
6x3
12x1
Step-by-step explanation:
it could be 1 and 12 2 and 6 3 and 4
Step-by-step explanation:
THe product is the answer to a multiplication equation so the numbers above are all products of 12! :D
2.9/2.2 X 2.6 find the estimate round to one signifcant figure with each number.
Answer:
= 2.9/ 5.72
= 0.50
Round off to one significant figure.
= 1
Step-by-step explanation:
=2.9/5.72
=0.50
Therefore significant figure = 1
please mark as a brainlest
What is 4 raised to the second power
Answer:
16
Step-by-step explanation:
4 x 4 = 16
4 to the second power is 4^2.
4x4=16
hope it helps!
find the unknown side length, x. write your answer in simplest radical form
On Monday, 350 students went on a trip to the zoo. All 9 buses were filled and 8 students had to travel in cars. Which equation can be used to determine, x, how many students were in each bus ?
Answer:
(350-8)/9
Step-by-step explanation:
If 8 students had to get on to a car then there would be the remainder of students on the buses. 342 students on 9 buses! Just Divide.
Factor out gcf
16x5 – 12x3
Answer:
(16 and 5 = gcf of 1) 12 and 3 = gcf of 3
Step-by-step explanation:
divid both to find the answer
What is the slope of a line passing through points (-7,5) and (5,-3)?
We can use the given points to solve for the slope.
Slope formula: y2-y1/x2-x1
-3-5/5-(-7)
-8/12
-4/6
-2/3
Best of Luck!
HELP PLZZZZZZZZ HELP PLZZZZZZZZZ
Sorry I know this is a lot
THANK U FOR YOUR EFFORT
1.Write 6,730,000 in scientific notation.
2. Write 13,300 in scientific notation.
3. An ordinary quarter contains roughly 97,700,000,000,000,000,000,000 atoms. Write this number using scientific notation.
4. The distance from the Earth to the Moon is roughly 384,000 kilometers. Write this number in scientific notation
5. Write `4\cdot10^{5}` in standard notation Hint: Move the decimal 5 place
6. Write `1.8499\cdot10^{9}` in standard notation Hint: Move the decimal 9 places
7. Write `1.8499\cdot10^{9}` in standard notation Hint: Move the decimal 9 places
8. Write `6.43\cdot10^{3}` in standard notation
9. Write `8.456\cdot10^{7}`
10. Write `8\cdot10^{5}` in standard notation
11. Write `9\cdot10^{10}` in standard notation
12. Describe how you would write 3,482,000,000 in scientific notation as if you were explaining it to someone who didn't know what scientific notation was.
Example: Write 58,927 in scientific notation Hint: move the decimal 4 places.
Answer for the example: 5.8927\ times\ 10\ ^{4}
The two triangles in the sketch below are congruent. Which sequence could transform triangle ABC to triangle DEF? A translation 7 units down followed by a rotation 180° clockwise about the origin A translation 7 units left followed by a rotation 90° clockwise about the origin A translation 7 units right followed by a rotation 180° clockwise about the origin A translation 7 units left followed by a rotation 180° clockwise about the origin
Answer:
Its A
Step-by-step explanation:
Can someone help me out pleaseeeee :(
Answer:
For number 9 and 11
9. is >
11. is <
Sorry I couldn't help with the rest! Goodluck!~
26°
58°
X
What is the measure of angle x in degrees?
a. 70°
b. 84°
C. 96°
d. 122°
Answer:
b. 84
Step-by-step explanation:
180-26-58=96
180-96=84
Solve the equation, and check your solution.
-3/5n = -9
Answer:
-15 = n
Step-by-step explanation:
what is the definition of a point?
Answer:
In modern mathematics, a point refers usually to an element of some set called a space. More specifically, in Euclidean geometry, a point is a primitive notion upon which the geometry is built, meaning that a point cannot be defined in terms of previously defined objects.
Step-by-step explanation:
Hope this helps! If it does, please mark me brainliest, and press the heart to thank me. Thank you so much, let's spread the learning! ;)
Algebra 1) The steps below show the solution to the equation 3 ( x − 2 ) = 2 ( x − 3 ) order the reasons for the steps. Options at the bottom. (WILL GIVE BRANLIEST)
Answer:
See the steps below.
Step-by-step explanation:
1. Distributive Property
2. Multiply
3. Addition and Subtraction property of equation.
4. Add and Subtract
Best Regards!
Would 3.24 be an integer?
Really need help with #20! I'll give brainliest!
Answer: 1 year (year 15)
Step-by-step explanation:
109.5-86.0=23.5
128.4-109.5=18.90
140.8-128.4=12.4
158.7-140.8=17.9
182.1-158.7=23.4
23.5+18.9+12.4+17.9+23.4=96.10
96.10÷5=19.22
200-182.1=17.9
182.1+19.22=201.32 subs
I NEEED THIS NOW PLS HELP ME
Answer:
56cm²
Step-by-step explanation:
To solve this question, find the area of the triangles separately and then add all the areas to find the total area of the kite.
Attached is the image of my work
Answer:
56 cm²
Step-by-step explanation:
The area (A) of a kite is calculated as
A = [tex]\frac{1}{2}[/tex] product of the diagonals
= [tex]\frac{1}{2}[/tex] × d₁ × d₂
d₁ = 4 + 4 = 8 and d₂ = 10 + 4 = 14
A = [tex]\frac{1}{2}[/tex] × 8 × 14 = 4 × 14 = 56 cm²
solve for x in this equation below
9+3x=10
Answer:
in fraction form it is X= 1/3
in decimal form it is X= 0.3 rep.
Step-by-step explanation:
A pound is approximately 0.45 kilogram. A person weighs 87 kilograms. What is the person's weight, in pounds, when rounded to the nearest
whole number?
ОА
39 lb
OB. 52 lb
OC 193 lb
OD. 180 lb
Answer:
OC 193 lb is correcte!
The person's weight, in pounds, when rounded to the nearest
the whole number is equal to [tex]1.9\times10^{2} pound[/tex]
We have given that, A pound is approximately 0.45 kilogram.
0.45 kg = 1 pound
Thus if 0.45 kg is equal to= 1 pound
87 kg will be equal to [tex]=\frac{1}{0.45} \times 87=1.9 \times 10^2 pound[/tex]
What are the significant digits?The number of significant digits in an answer should be equal to the least number of significant digits in any one of the numbers being multiplied, divided, etc.
Thus the answer should contain 2 significant digits.
To learn more significant digits visit:
https://brainly.com/question/24491627
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