Answers
Answer:
C
Step-by-step explanation:
Put x as 4.
4 + 8 = 3(4)
12 = 12
True.
The equation that has the solution x = 4 is x + 8 = 3x.
Given that,
The x = 4.Based on the given options,
(a) 4x = 20
Now if we put x value in the equation
Put x as 4
So
4x = 20
4(4) = 20
8 = 20
(b)
x ÷ 2 = 8
4 ÷ 2 = 8
2 = 8
(c)
x + 8 = 3x
(4) + 8 = 3(4)
12 = 12
Therefore we can conclude that the equation that has the solution x = 4 is x + 8 = 3x.
Learn more: brainly.com/question/24169758
Related Questions
Find the product. (a2)(2a3)(a2 – 8a + 9) 2a7 – 16a6 + 18a5 2a7 – 16a6 – 18a5 2a8 – 16a7 + 18a6 2a12 – 16a7 + 18a6
Answers
Answer:
2[tex]a^{7}[/tex] - 16[tex]a^{6}[/tex] + 18[tex]a^{5}[/tex]
Step-by-step explanation:
Given
(a²)(2a³)(a² - 8a + 9) ← multiply the first 2 factors
= 2[tex]a^{5}[/tex] (a² - 8a + 9) ← distribute the parenthesis by 2[tex]a^{5}[/tex]
= 2[tex]a^{7}[/tex] - 16[tex]a^{6}[/tex] + 18[tex]a^{5}[/tex]
Answer:
A. 2a^7-16a^6+18a^5
Step-by-step explanation:
on edge 2020
Write the following as an inequality: x is between –12 and 2.5.
Answers
Explanation : x is bigger than -12 but smaller than 2.5
The statement - 'x is between –12 and 2.5' can be written in inequality form as -
[tex]-12 < x < 2.5[/tex]
We have a statement : x is between –12 and 2.5.
We have to write it as a mathematical inequality.
Consider the following : if [tex]x[/tex] is between α and β, such that -α < 0 and β > 0, then express this statement as inequality.We can write the inequality as follows -
α < [tex]x[/tex] < β (Since α is less then 0, it will be less then β)
Similarly, we can write the statement - 'x is between –12 and 2.5' in the form of a mathematical inequality as :
- 12 < [tex]x[/tex] < 2.5
Hence, the statement - 'x is between –12 and 2.5' can be written as a mathematical inequality as -
- 12 < [tex]x[/tex] < 2.5
To solve more questions on expressing the statement as inequality, visit the following link -
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John used digits from 0 to 6 to create a three-digit PIN code. He forgot his PIN code. He remembers that his code contains different ascending digits. What is the maximum number of combinations John has to check to find his PIN code.
Answers
Answer:
35 combinations
Step-by-step explanation:
The first digit cannot be 5 or 6 (Since the digits could not be in ascending order if that was the case).
If the first digit is 4, there is 1 possibility:
(4, 5, 6)
If the first digit is 3, there are 3 possibilities:
(3, 4, 5) (3, 4, 6) (3, 5, 6)
If the first digit is 2, there are 6 possibilities:
(2, 3, 4) (2, 3, 5) (2, 3, 6) (2, 4, 5) (2, 4, 6) (2, 5, 6)
If the first digit is 1, there are 10 possibilities :
(1, 2, 3) (1, 2, 4) (1, 2, 5) (1, 2, 6) (1, 3, 4) (1, 3, 5) (1, 3, 6) (1, 4, 5) (1, 4, 6) (1, 5, 6)
If the first digit is 0, there are 15 possibilities:
(0, 1, 2) (0, 1, 3) (0, 1, 4) (0, 1, 5) (0, 1, 6) (0, 2, 3) (0, 2, 4) (0, 2, 5) (0, 2, 6) (0, 3, 4) (0, 3, 5) (0, 3, 6) (0, 4, 5) (0, 4, 6) (0, 5, 6)
Therefore, he would need to try at most 35 combinations.
The midpoint of XY is M(0, 4). One endpoint is X(6, –2). Find the coordinate of the other endpoint Y. A.(–6, 10) B.(3, 1) C.(–6, 6) D.(12, 0)
Answers
Answer:
The answer is A.
Step-by-step explanation:
Given that the formula for midpoint is :
[tex]m = ( \frac{x1 + x2}{2} , \frac{y1 + y2}{2} )[/tex]
So you have to subtitute the coordinates into the formula :
[tex]let \: m = (0,4) \\ let \: (x1,y1) = (6, - 2)[/tex]
[tex](0,4) = ( \frac{6 + x2}{2} , \frac{ - 2 + y2}{2} )[/tex]
Next, you have to solve it by comparison :
[tex]x⇒ \\ \frac{6 + x}{2} = 0 \\ 6 + x = 0 \\ x = - 6[/tex]
[tex]y⇒ \\ \frac{ - 2 + y}{2} = 4 \\ - 2 + y = 8 \\ y = 10[/tex]
The product of two numbers is 450. The first number is half the second number. Which equation can be used to find x, the greater number? = 450 225x2 = 0 x2 = 450 450x2 = 0The product of two numbers is 450. The first number is half the second number. Which equation can be used to find x, the greater number? = 450 225x2 = 0 x2 = 450 450x2 = 0
Answers
Answer:
1/2 x^2 = 450
Step-by-step explanation:
x is the greater number.
The other number is 1/2x.
1/2x * x = 450
1/2 x^2 = 450
The equation that can be used to find x which is the greater number is 1/2(x²) = 450
What are word problems?Word problems involving algebraic expression require the use of variables to interpret the problems and the use of arithemtic operations in solving the variables.
From the given information:
The product of two numbers = 450Let say:
(y) × (x) = 450However, the first number is half the second number
i.e y = x/2
So, we have:
(x/2) × x = 450
1/2(x²) = 450
Learn more about solving word problems involving the use of algebraic expression here:
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calculate 58^2-42^2 ??
Answers
Answer:
1600
Step-by-step explanation:
As you can see, this is a difference of squares. We can plug it into our differences of squares formula to get the answer:
(a+b)(a-b)
(58+42)(58-42)
(100)(16)
= 1600
Hope you learned something!
Answer: 1600
Step-by-step explanation: 58x58 - 42x42 = 1600
The United States Postal Service reports 95% of first-class mail within the same city is delivered within two days of the time of mailing. Six letters are randomly sent to different locations. 1. What is the probability that all six arrive within two days? 2. What is the probability that exactly five arrive within two days? 3. Find the mean number of letters that will arrive within two days. 4. Compute the variance and standard deviation of the number that will arrive within two days.
Answers
Answer:
Step-by-step explanation:
This is a binomial probability distribution because the outcome is either a randomly selected first-class mail within the same city is delivered within two days of the time of mailing or more days. The probability of success, p is that it is delivered within 2 days. Therefore,
p = 95/100 = 0.95
q(probability of success) = 1 - p = 1 - 0.95 = 0.05
n = number of samples = 6
1)The probability that all six arrive within two days, P(x = 6) would be determined from the binomial probability distribution calculator. Therefore,
P(x = 6) = 0.74
2) P(x = 5) = 0.23
3) mean = np = 6 × 0.95 = 5.7
4) Variance = npq = 6 × 0.95 × 0.05 = 0.285
Standard deviation = √0.285 = 0.53
b(1)=16 b(n)=b(n−1)+1 Find the 2 term in the sequence.
Answers
Answer:
B (1)
Step-by-step explanation:
Let E=3, B=7 and A=4. Find the other digits in the sum BASE+BALL=GAMES
Answers
Given : E=3, B=7 AND A=4 BASE + BALL = GAMES
To find : Other Digits S , L G M
Solution:
BASE
BALL
GAMES
74S3
74LL
G 4M3S
if L = 0 then S = 3 but E = 3 ( hence not possible)
=> only possible solution
3 + L = S
& S + L = 13
=> S + S - 3 = 13
=> S = 8
=> L = 5
7483
7455
14938
L = 5
S = 8
M = 9
G = 1
Which shows a perfect square trinomial? 50y^2-4x^2 100-36x^2y^2 16x^2+24xy+9y^2 49x^2-70xy+10y^2 ~ please answer, i will mark brainliest ~
Answers
Answer:
C
Step-by-step explanation:
the answer is c, hope this helped :)
Answer:
3. 16x^2+24xy+9y^2
Step-by-step explanation:
A perfect square trinomial has the form of:
a^2+2ab+b^2= (a+b)^2
Let's see which of the given is equivalent to perfect square
1. 50y^2-4x^2
No, this is not a trinomial
2. 100-36x^2y^2
No, this is not a trinomial
3. 16x^2+24xy+9y^2 = (4x)^2 + 2*4x*3y+ (3y)^2 = (4x+3y)^2
Yes, this is a perfect square
4. 49x^2-70xy+10y^2= (7x)^2- 2*7x*10y + 10y^2
No, this is a trinomial but not a perfect square because 10y^2 is not equal to (10y)^2
As per above, the answer is the 3rd choice
A company has two office buildings that hold 30,000 employees. Their headquarters contains 14 times as many employees as their overseas branch. Therefore, their headquarters contains __?__ employees.
Answers
Answer:
Their headquarters contains 420000 employees.
Step-by-step explanation:
The company has two office buildings which hold 30,000 employees.
The headquarters contains 14 times as many employees as the overseas branch.
Therefore, the number of employees in the headquarters is:
14 * 30000 = 420000 employees
Their headquarters contains 420000 employees.
Use the Distributive Property to multiply. –5(2x – 5)\
Answers
Answer:
-10x +25
Step-by-step explanation:
–5(2x – 5)
Distribute
-5 * 2x - (-5) * 5
-10x +25
Answer:
-10x + 25
Step-by-step explanation:
-5(2x - 5)
Distribute the expression
-5(2x) + 5(5)
Multiply
-10x + 25
The expression cannot be simplified further
Hope this helps :)
PLZ HELP This is due today and if I don’t finish I fail
Answers
Answer:
The solution ( 12,6) is correct, Lizette's solution
Answer:
[tex]x=12,\:y=6[/tex]
Step-by-step explanation:
[tex]\begin{bmatrix}\frac{2}{3}x+3y=26\\ 2x+\frac{1}{2}y=27\end{bmatrix}[/tex]
[tex]\frac{2}{3}x+3y=26[/tex]
[tex]\frac{2}{3}x+3y-3y=26-3y[/tex]
[tex]\frac{2}{3}x=26-3y[/tex]
[tex]3\cdot \frac{2}{3}x=3\cdot \:26-3\cdot \:3y[/tex]
[tex]2x=78-9y[/tex]
[tex]\frac{2x}{2}=\frac{78}{2}-\frac{9y}{2}[/tex]
[tex]x=\frac{78-9y}{2}[/tex]
[tex]\begin{bmatrix}2\cdot \frac{78-9y}{2}+\frac{1}{2}y=27\end{bmatrix}[/tex]
[tex]\begin{bmatrix}78-\frac{17}{2}y=27\end{bmatrix}[/tex]
[tex]78-\frac{17}{2}y=27[/tex]
[tex]78-\frac{17}{2}y-78=27-78[/tex]
[tex]-\frac{17}{2}y=-51[/tex]
[tex]2\left(-\frac{17}{2}y\right)=2\left(-51\right)[/tex]
[tex]-17y=-102[/tex]
[tex]\frac{-17y}{-17}=\frac{-102}{-17}[/tex]
[tex]y=6[/tex]
[tex]x=\frac{78-9\cdot \:6}{2}[/tex]
[tex]x=12[/tex]
[tex]x=12,\:y=6[/tex]
the value of x is: 12. 6. 2. None of the choices are correct.
Answers
Answer:
x=6
Step-by-step explanation:
The triangle is an equilateral triangle since all angles are 60 degrees
That means all sides are equal
3x-13 = x-1
Subtract x from each side
3x-13-x = x-1-x
2x-13 =-1
Add 13 to each side
2x= -1+13
2x = 12
Divide by 2
2x/2 =12/2
x = 6
Answer:
B. 6
Step-by-step explanation:
Two angles are 60 degrees, the other is also 60 degrees.
The triangle is an equilateral triangle.
All sides are equal.
3x - 13 = x - 1
3x - x = -1 + 13
2x = 12
x = 6
Solve for x. Please help
Answers
Answer:
x = 37/45
Step-by-step explanation:
Here's how similar triangles work. We set up an equation as SIDE 1A/ SIDE 1B = SIDE 2A/ SIDE 2B
Ok, so these 2 triangles are similar, so we can set up a butterfly equation:
Side 1a would be 8x
Side 1b would be 5x +3
Side 2a would be 10x - 2
Side 2b would be 7x
----------------------------------------------------
Our equation would be
8x/(5x+3) = (10x-2)/7x
We cross multiply to get 8x(10x-2) = 7x(5x+3)
Instead of solving and getting squares, we can x on both sides and we get:
8(10x - 2) = 7(5x+3) ----> we simplify to get
80x - 16 = 35x + 21 ----> it's easy sailing from here.
45x = 37
x = 37/45
gosh i hope it's right...
Select the equivalent expression. Thanks :)
Answers
Answer:
b
Step-by-step explanation:
(y^3 * 2^5)^2
3x2=6
5x2=10
y6x2^10
john asked 60 people there favourite fruit
Answers
Answer:
45
Step-by-step explanation:
it only has 15 people as liking pears so if you already have a angle of 60 for apples that is you solution
Which functions have a vertex with a x-value of 0? Select three options.
f(x) = |x|
f(x) = |x|+ 3
f(x) = |x + 3|
f(x) = |xl - 6
f(x) = |x + 3|-6
Answers
Answer:
Hello!
________________________
(A) f(x) = |x|.
(B) f(x) = |x| + 3.
(D) f(x) = |x| - 6.
Would be correct!
Hope this helped you!
The functions that have a vertex with a x-value of 0 are:
f(x) = |x|
f(x) = |x|+ 3
f(x) = |xl - 6
An absolute value function is of the form:
f(x) = a|x - h| + k
where (h, k) represents the vertex
h is the x-coordinate of the vertex
k is the y-coordinate of the vertex
Comparing each of the options with f(x) = a|x - h| + k, the following absolute value functions have a vertex with x-value of 0.
f(x) = |x|
f(x) = |x| + 3
f(x) = |x| - 6
Learn more here: https://brainly.com/question/11212326
The diagram shows two straight lines. Work out the value of x
Answers
Answer:
136
Step-by-step explanation:
Answer:
136°
Step-by-step explanation:
The angle opposite of x and x are a pair of vertically opposite angles.
Vertically opposite angles are equal in size.
What is the value of
P(X = 2 or X = 0)
Enter your answer in the box
Answers
Answer:
0.4
Step-by-step explanation:
Answer: 0.4
Step-by-step explanation:
What is the area of the trapezoid below
Answers
(a+b) • h / 2
Where a and b are the lengths of the parallel sides.
Therefore 7 + 19 = 26 • 10 (h) = 260 / 2 = 130
So area is 130
Answer:
[tex]\boxed{Area = 130 units^2}[/tex]
Step-by-step explanation:
Area of trapezoid = [tex]\frac{a+b}{2} h[/tex]
Where a = 7, b = 19 and h = 10
Area = [tex]\frac{7+19}{2} (10)[/tex]
Area = (26)(5)
Area = 130 units²
Find the dependent and independent variable in r = 5s + 3.
Answers
Answer:
The independent variable is s and the dependent variable is r
Step-by-step explanation:
r = 5s+3
The independent variable is s and the dependent variable is r
LINEAR Equations HELP ASAP
Answers
Answer: D) -4/3
Step-by-step explanation:
Slop can be represented as [tex]\frac{rise}{run}[/tex]. This equation rises -24 units then runs 18. Thus, the slope is -24/18, or -4/3.
Hope it helps <3
Answer:
-4/3.
Step-by-step explanation:
To get the slope, you do the rise over the run.
In this case, the rise is going to be -24, since the track is falling. The run will be 18.
-24 / 18 = -12 / 9 = -4/3
Hope this helps!
A ladder is used to scale a 13 foot wall. If the angle of elevation from the ground to the top of the wall has
to be 36 degrees, how tall must the ladder be?
Answers
Answer:
22.12feet
Step-by-step explanation:
the ladder becomes your hypotenuse,the wall is the height,this forms a right angled triangle and the angle of elevation forms at the base,use sine which is opposite over hypotenuse to get your answer
please help me answer this
Answers
Answer:
Train was late by 13 minutes.
Step-by-step explanation:
Time train took to travel = 290 miles / 50 mph
= 5.8 h
= 5h 48 min.
Time train left = 10:10 am
Time of arrival
= 10:10 + 5:48
= 15:58 pm
= 3:58 pm
Scheduled time of arrival
= 3:45 pm
Train arrived late by
3:58 - 3:45
= 0:13
= 13 minutes.
An auditorium has its length, breadth, and height equal to 18m. How much air does it contain? An average adult person requires approximately 0.3 cu.M air per hour. The owner of auditorium organizes a concert there. But he limits the duration of concert 3 hours and allows only 6480 tickets to be sold. Why has the owner taken this decision?
Answers
Answer:
The volume of air in the auditorium = 5832 cubic meter
Step-by-step explanation:
Length, breadth, and height of the auditorium = 18m
Therefore, the volume of air in the auditorium
[tex]=18 \times 18 \times 18\\=5832 $ cubic meter[/tex]
An average adult person requires approximately 0.3 cu.M air per hour.
Therefore:
6480 adult person will require: 0.3 X 6480 = 1944 cu.M air per hour.
For three hours:
6480 adult person will require: = 1944 X 3 =5832 cubic meter of air
We notice that the volume of air in the room will be exhausted exactly after 3 hours when 6480 persons attend.
Therefore, the owner has taken this decision to avoid suffocation as an increase in the number of tickets or hours will cause such.
Mr. V went flying a kite. The angle of elevation of the string with the ground is 55
degrees. If the kite is 25 m above ground, how long is the string the kite is on?
Answers
Answer:
Length of string = 30.52 m (Approx)
Step-by-step explanation:
Given:
Angle of elevation = 55°
Height of kite = 25 m
Find:
Length of string
Computation:
Sin 55 = Height of kite / Length of string
0.8191 = 25 / Length of string
Length of string = 25 / 0.8191
Length of string = 30.52 m (Approx)
Study the diagram of circle K, where JL¯¯¯¯¯¯¯ and LM¯¯¯¯¯¯¯¯¯ are tangent to circle K at points J and M, respectively. Also, JL=3x+10 and ML=7x−6. What is the length of LM¯¯¯¯¯¯¯¯¯?
22
17.6
16
4
Answers
Answer:
22
Step-by-step explanation:
The answer is 22. You solve the equation 3x+10=7x-6 like so
3x+10=7x-6
-3 = -3
10= 4x-6
+6 = +6
16=4x
x=4
You then plug in the value of x to the equation for LM.
7x-6 becomes 7*4-6 which is 22.
1+1(I want to give points back so i am doing this).Pay it Forward
Answers
Answer:
2
Step-by-step explanation:
thanks! i will do it too!
I will GIVE U Braniest! Which expressions can we use to describe the number of seconds it takes Mr. Golv to complete his jiu-jitsu drill 7 times? Choose 2 answers: (Choice A) 7(K+G) (Choice B) 2K+5G (Choice C) 7(5G-2K) (Choice D) 7(5G+2K) (Choice E) 14K+35G
Answers
Answer:
Option D and E
Step-by-step explanation:
Time for guard passes = 5G
Time for kimura arm locks = 2K
Altogether:
=> 5G+2K
If he does 7 times:
=> 7(5G+2K)
Simplified form:
=> 14K+35G
Answer:
Option D and E
Step-by-step explanation:
Time for guard passes = 5G
Time for kimura arm locks = 2K
Altogether:
=> 5G+2K
If he does 7 times:
=> 7(5G+2K)
Simplified form:
=> 14K+35G