Answer:
Check explanation
Step-by-step explanation:
Here, we want to make a prove;
Mathematically , since D is the midpoint of CE
Then;
CE = CD + DE
Also, since D splits the line segment into two equal parts as the midpoint, then CD must be equal to DE
I.e CD = DE
Hence, we can express CE as follows;
CE = DE + DE
CE = 2 DE
Divide both sides by 2
CE/2 = DE
Hence; DE = 1/2 CE
Jubal wrote the four equations below. He examined them, without solving them, to determine which equation has no solution. 7 x + 1 = 7 x+ 1. 3 x + 2 = 3 x minus 2. 4 x + 1 = 3 x + 8. Negative 2 x minus 1 = negative 2 x minus 1. Which of Jubal's equations has no solution? 7 x + 1 = 7 x+ 1 3 x + 2 = 3 x minus 2 4 x + 1 = 3 x + 8 negative 2 x minus 1 = negative 2 x minus 1
Given:
Four equations are
[tex] 7 x + 1 = 7 x+ 1[/tex]
[tex]3 x + 2 = 3 x-2[/tex]
[tex]4 x + 1 = 3 x + 8[/tex]
[tex]-2x-1 = -2 x-1[/tex]
To find:
Without solving which equation has no solution.
Solution:
We know that, in an equation
1. No solution : When variable terms are same but constants are different.
2. Unique solution : When variable terms are different.
3. infinitely many solution : When variable terms and constants are same.
In first and fourth equations, terms on left sides are equal to the terms on the right side. So, LHS = RHS for any value of x.
Therefore, these two equations (first and fourth) have infinitely many solutions.
In second equation, variable terms are same on both sides, but the constants are difference. So, LHS ≠ RHS for any value of x.
Therefore, the second has no solutions.
In third equation, coefficient of x are difference on both sides.
So, this equation has unique solution.
Therefore, Jubal's equations [tex]3 x + 2 = 3 x-2[/tex] has no solution. Hence, the correct option is B.
Answer:
D
Step-by-step explanation:
Is 2x+y=4 linear? If it is what is the slope and y intercept?
Answer: Yes, it is linear. The slope is -2
Step-by-step explanation:
move the 2x over to the other side and get y=-2x+4, the slope in a linear equation is m in the formula y=mx+b, in this case, m=-2
HELP ASAP . You the real one if you do.
Answer:
x=1
Step-by-step explanation:
hope this helps and hope its correct
Solve for the indicated variable.
2a + 2b = c for b
B = ?/?
Answer:
b = c − 2a
------------
2
Step-by-step explanation:
2a + 2b = c
2b = c − 2a
b = c − 2a
------------
2
Can someone please help me ASAP I’ll mark brainlist!!!!?!?
i need help with 1/2x+13=9
im in the 8th grade btw
Answer:
-8
Step-by-step explanation:
You are wanting to solve for x
First you want to subtract 13 on both sides-
1/2x = -4
Now you want to divide on both sides-
x = -8
Answer:
1/-8
To find:
x
Step-by-step explanation:
1/2x+13=9
take 13 to the LHS. when you take 13 to the LHS it becomes negative
1/2x=9-13
1/2x=-4
by cross multiplying,
2x × -4=1
-8x=1
x=1/-8
hope it helps you!!
1/3 - 2/9 find the solution
Answer:
1/9
Step-by-step explanation:
1/3 - 2/9
Get a common denominator of 9
1/3 *3/3 = 3/9
3/9 - 2/9
1/9
-8(1 + 4p) + 7p = – 25 – 8p
(3y-1)^5 written in standard form please help!!!!
Answer:
Step-by-step explanation:
[tex](3y-1)[/tex]
[tex](3y-1)*(3y-1)*(3y-1)*(3y-1)*(3y-1)[/tex]
[tex]243y^5-405y^4+270y^3-90y^2+15y-1[/tex]
Which value must be added to the expressionx2+16x to make it a perfect-square trinomial?
Answer:
Step-by-step explanation:
Please write x^2+16x or x²+16x to indicate the exponentiation.
To rewrite x²+16x as a perfect square trinomial:
1) Take half of the coefficient of x, that is, half of 16, which is 8
2) Square this result: 8² or 64
3) Starting with x²+16x again, add 64 and then subtract 64 to get a trinomial expression equivalent to x²+16x:
x²+16x + 64 - 64
4) Rewrite the first three terms as the square of the binomial x + 8:
(x + 8)² - 64
Here (x + 8)² is a perfect square trinomial.
Answer:
The answer is C.) 64 on edge.
The legs of a right triangle are 10 cm and 24 cm long what is the length of the hypotenuse
Answer:
26
Step-by-step explanation:
the formula for this is A squared plus B squared equals C squared
Answer:
26
Step-by-step explanation:
10(10)+(24)(24)
100+576
676
out of the square root
it is 26
Write an equation in slope-intercept form of the line that passes through (6,-1) and (3,-7). Please help!
Answer:
y = 2x – 13
Step-by-step explanation:
Use Slope formula to get the slope
(y2-y1) / (x2-x1)
(-7--1) / (3-6)
(-6)/(-3)
2
Then plug-in the value of slope and any one coordinate in Point-Slope formula:
y- y1= m(x-x1)
y - -1 = 2( x - 6)
y + 1 = 2x - 12
y = 2x - 13
The equation of the line in the slope-intercept form will be y = 2x – 13.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Slope = (-7-(-1)) / (3-6)
Slope = (-6)/(-3)
Slope = 2
Then plug in the value of slope and any one coordinate in the Point-Slope formula:
y- y₁= m(x-x₁)
y - (-1) = 2( x - 6)
y + 1 = 2x - 12
y = 2x - 13
Therefore, the equation of the line in the slope-intercept form will be y = 2x – 13.
To know more about an equation of the line follow
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Can someone help me with 5 and 6 please
Answer:
5. x+4=86
6. An equation can be used to predict values from a pattern by merely substituting any value to determine the equivalent value. An example is the geometric series which has a standard equation of an = a1 * r^(n-1) and is used to predict the nth term of the series
Step-by-step explanation:
does the table below show a proportional relationship
Answer:yes
Step-by-step explanation:
give me an example of irrational between 4 and 5
Answer:
√17, √18,√19,√20,√21,√22,√23 ,√24
Step-by-step explanation:
What is the volume of the toy car that has a density of 3 g/mL and a mass of 75 g.
Answer:
25 mL
Step-by-step explanation:
m/D=V
75g/3 g/mL = V
25mL =V
James decides to invest money in Wal-Mart. As a shareholder, he has the advantage of
(select all that apply)
A. limited liability
B. limited life
C. unlimited liability
D. double taxation
E. ease of start up
Answer:
A. limited liability
Step-by-step explanation:
Because James has become a shareholder by investing in Walmart, he has the advantage of limited liability. This basically means that he shares in both the gains and the losses of Walmart's business decisions but only up to the amount that he has invested into it. Meaning that if James invested a total of $2000 and Walmart goes under, then he will lose all $2000 but not more than that.
HELPPPP PLEASSEEEEEE!!!
Answer:
Answer:
b2 = 2A/h - b1
Step-by-step explanation:
The radius of a circle is 8 meters. What is the diameter?
Answer:
16 meters
Step-by-step explanation:
r=8m
8*2=16
d=16m
Answer:
16
Step-by-step explanation:
The diameter is the radius times 2.
Anita is making headbands for her softball team. She needs a total of 3/4 yard of fabric. Select all types of fabric that cost less than $8 per yard. Total cost for 3/4 of cotton: 5.54 Total cost of 3/4 of Flannel: 2.62 Total cost of 3/4 of Fleece: 4.27 Total cost of 3/4 of Terry cloth: 6.52
Answer:
All except the Terry Cloth
Step-by-step explanation:
The fabrics that cost less than $8 per yard are cotton, flannel and fleece.
In order to determine the cost of a yard of each material, divide the total cost of 3/4 yards of that fabric by 3/4
cost of a yard = total cost ÷ [tex]\frac{3}{4}[/tex]
Cost of a yard of cotton = 5.54 ÷ [tex]\frac{3}{4}[/tex] = 6.85
Cost of a yard of Flannel = 2.62 ÷[tex]\frac{3}{4}[/tex] = 3.49
Cost per yard of Fleece = 4.27 ÷ [tex]\frac{3}{4}[/tex] = 5.69
Cost per yard of Terry Cloth = 6.52 ÷[tex]\frac{3}{4}[/tex] = 8.69
Based on the above calculations, all but Terry cloth cost less than $8 per yard
A similar question was solved here: https://brainly.com/question/2244723?referrer=searchResults
A LOT OF POINTS!!
find the value of x for each figure. each figure is in centimeters(cm)
please answer this i have been giving away points but nobody answers :(
Answer:
10
x*(6/10)=6/70
x=6/70*10/6
x=1/7
11
x*2/8=6/32
x=6/32*8/2
x=3/4
12
x*1/5=1/15
x=1/15*5=1/3
13
x*1/7=1/14
x=1/14*7=1/2
14
x*1/2=1/4
x=1/4*2=1/2
15
x*2/5=14/45
x=14/45*5/2
x=7/9
3. Three meals per day are provided by the hotel. The hotel will charge a total of $9,240 for all meals for the entire group. What is the cost of meals for each person?
Answer:
1 meal = $3.080
Hi, i need help quickly. I need the solution for
Estimate the value of
[tex] \sqrt{97.5 \div 1.96} [/tex]
Please make it quick
Answer:
7.05
Step-by-step explanation:
Answer:
7.053
Step-by-step explanation:
97.5/1.96=49.745
√49.745=7.053
A bag with 2 ½ ounces of peanuts can make ⅔ of a jar of peanut butter.
How many ounces of peanuts will it take for there to be one jar of peanut butter?
Given :
A bag with 2 ½ ounces of peanuts can make ⅔ of a jar of peanut butter.
To Find :
How many ounces of peanuts will it take for there to be one jar of peanut butter.
Solution :
[tex]2\dfrac{1}{2}\ ounces = \dfrac{2}{3}\ jar\\\\\dfrac{5}{2}\ ounces = \dfrac{2}{3}\ jar\\\\1= \dfrac{15}{4}\ \dfrac{ounces}{jar}[/tex]
Now,
1 jar of peanut butter is made by :
[tex]1\times jar \times \dfrac{15}{4} \dfrac{ounces}{jar}\\\\\dfrac{15}{4}\ ounces[/tex]
Hence, this is the required solution.
To rent a Bird scooter you must pay $1 to start and then $0.50 for every 15 minutes you ride. Is the cost proportional to the amount of time you ride?
Step-by-step explanation:
if you rent a scooter for 15 minutes you pay $1.50 ($1 to start and $0.50 rental) and if you rent it for 30 minutes then you pay $2.00 ($1 to start and $1 rental). This is NOT proportional because $1.50/15-mins and $2.00/30-min are NOT equivalent ratios
Tisha orders a carpet for a room that measures 270 square feet. The salesman says the carpet costs $12.00 per square yard. He explains that since there are 3 square feet for every square yard, tisha needs 90 square yards of carpeting, which cost $1,080. What error did the salesman make? What should be the actual cost of the carpet?
Answer:
What error did the salesman make?
The salesman made an error when convert 270 square feet to yards.
What should be the actual cost of the carpet?
The actual cost of the carpet is $360
Step-by-step explanation:
From the question, we are told that:Tisha orders a carpet for a room that measures 270 square feet.
This means the room needs 270 square feet of carpet
But from the question, we know that the carpet is sold in square yards
We convert square feet to square yards
For our conversion rates
3 ft = 1 yard
9 ft² = 1 square yards(yd²)
270 ft² = x
Cross Multiply
9 ft² × x = 270ft² × 1 yd²
x yd²= 270ft² × 1 yd²/9 ft²
x = 30 yd²
Hence, 270ft² = 30yd²
Cost of carpet =
1 yd² = $12.00
30 yd² =
Cross Multiply
= 30 × $12.00
= $360.00
The actual cost of the carpet is $360
What error did the salesman make?
The salesman made an error when convert 270 square feet to square yards.
He said 270 square feet = 90 square yards
But he was wrong.
270 square feet = 30 square yards.
What should be the actual cost of the carpet?
The actual cost of the carpet is $360
Answer:360 for the actual cost
Step-by-step explanation:
Which of the equations shown have infinitely many solutions?
Select all that apply
A 3x - 1 = 3x + 1
B. 2x - 1 = 1 - 2x
C3x - 2 = 2x - 3
D. 3(x - 1) = 3x - 3
E. 2x + 2 = 2(x + 1)
E 3(x - 2) = 2(x-3)
Answer:
D. 3(x-1) = 3x-3
Step-by-step explanation:
I'm sure that's the answer
Answer:
D and E
Step-by-step explanation:
Can you please help me with this please.... I’ve been posting these questions over and over and nothing...
Snorkel, mask, and flippers
Slope:
Snorkel, mask, and flippers
y-intercept:
Snorkel, mask, and flippers
Slope intercept form:
Answer:
Step-by-step explanation:
Snorkel, mask, and flippers Slope: 2 (so in the equation, it would look like 2x).
Snorkel, mask, and flippers Y-intercept: 10 (12 - 2 = 10, which is 0 hours, possibly the initial amount)
Snorkel, mask, and flippers Slope intercept form: y = 2x + 10
How can you use Recipes B and D to create recipe E?
Fill in the blank.
1.) ____ the corresponding quantities of Recipe B 2.)____ Recipe D to create Recipe E.
Options for 1.)
- Add
- Subtract
- Multiply
- Divide
Options for 2.)
- and
- from
- times
- by
Three times a number increased by 7 is 100. Find the number.
Answer:
31
Step-by-step explanation:
100-7= 93
93÷3=31
Answer:
the number is 31
Step-by-step explanation:
the number is the variable x
3 times the number is 3x
increased by 7 is +7
is 100 is =100
3x +7 =100
subtract 7 from both sides
3x =93
divide by 3 on both sides
x = 31