Given the equation 8x + 4y = 2, a second equation that forms a system with no solution is:
Answers
Answer:
4x + 2y = 2
Step-by-step explanation:
8x + 4y = 2 ( divide each term by 2 )
4x + 2y = 1 → (1)
we require a situation where the left side cannot possibly equal the right side.
using 4x + 2y = 2 → (2)
subtract (1) from (2) term by term
(4x - 4x) + (2y - 2y) = 2 - 1 , that is
0 + 0 = 1
0 = 1 ← not possible
thus the system has no solution
Related Questions
100 POINTS PLS HURRY I WILL ALSO MARK BRAINLIEST!!!!!
What is the shape of the cross section of the figure that is parallel to the rectangular base?
A. a parallelogram that is not a rectangle
B. a rectangle
C. a triangle that must have same dimensions as one of the faces
D. a triangle that does not have the same dimensions as one of the faces
Answers
Answer:
B. a rectangle
Step-by-step explanation:
A cross section is the new face you see when you slice through a 3D figure. So if you slice a rectangular pyramid parallel to the base, you get a smaller rectangle as the cross section. Similarly, if you slice parallel to a triangular base then your cross section will be a triangle.
Hope this helps and God bless!
Step-by-step explanation:
I think Its D because In the rectangular base its not equal sides like a square so it would be more be like sides that are not perpendicular.
hope it helps
{32,33,34,34,36,38,38,38,40,42} what is the mean of the data set?
Answers
Answer:
add up all the numbers and multiply it by 32
Step-by-step explanation:
add up 32 33 34 34 36 38 38 38 40 42 amd then multiply that answer by 32
If x+3/3=y+2/2, then x/3=___
Answers
Answer:
y/2
Step-by-step explanation:
(x+3)/3 = (y+2)/2
x/3 + 1 = (y+2)/2
x/3 = (y+2)/2 - 1
= (y+2-2)/2
= y/2
Find the area of the regular polygon
Answers
Answer:
891.75 sq.ft is the area of the polygon
Step-by-step explanation:
9.2^2 + 10^2= 184.64
√184.64= 13.59 feet
area of regular octagon=A=2(1+√ 2)a^2
A= 2(1+√2)13.59^2
A=891.75 sq.ft(approx)
how can i get 40 for the numbers 5,4,3,2,1
Answers
Answer:
5x4=20
20x2=40
Step-by-step explanation:
Answer:
4 * 5 * 2 + 3 - 2 - 1
Step-by-step explanation:
remember pemdas
4 * 5 * 2 + 3 - 2 - 1 = 40
The daily number of miles driven by a bus driver during a week are 50, 65, 78, 54, 53, 61, 79, and 78.
Which statement is true?
Both the mean and mode are appropriate measures of center.
Both the median and mode are appropriate measures of center.
Both the mean and median are appropriate measures of center.
The mode is the only appropriate measure of center.
Answers
Answer:
C Both the mean and median are appropriate measures of center.
Step-by-step explanation:
2. To solve this system using the addition method, you would need to multiply the first equation
by what number in order for the y's to add out? 3x-y=3 -2x + 2y = 6
Answers
which equation is true for y?
Answers
REASON:
4(y x y) = 4(y^2) = 4y^2
Hope that helps!
Each expression has been simplified incorrectly. Explain the mistake that occurred ,and then make the correction.
(-2×7)³=8×7³
Answers
Answer:
Step-by-step explanation:
Remarks
The answer given is pretty close to being correct. The 8 is correct -- that is 2^3 power.
The problem is in the minus sign. Think of it as (-1)^3
(-1)^3 = -1 * -1 * -1.
There are 3 minuses there. 2 of them will make plus 1. The third one will change the result to - 1.
Answer: 8 should be -8
The two rectangles below are similar. Which ratio will help to find the value of the missing side of the rectangle? A 2.1/6.3=8.7/X B 8.7/X=6.1/2.1 C 6.3/8.7=2.1/X D 6.3/8.7=X/2.1 31 POINTS WILL GIVE BRAIN LIST IF ITS IS RIGHT
Answers
Answer:
A) 2.1/6.3 = 8.7/X
Step-by-step explanation:
If two rectangles are similar, the ratio of the two shorter sides should equal the ratio of the two longer sides.
The two shorter sides are 2.1 cm and 6.3 cm
The two longer sides are 8.7 cm and X.
Therefore, as ratios:
2.1 : 6.3 = 8.7 : X
⇒ 2.1/6.3 = 8.7/X
Answer:
answer c Step-by-step explanation:
which one is greater than 0
Answers
Answer:
My guess is A
Step-by-step explanation:
-We see as C and B are both negitive
-D is on the zero Y line
-A is fully 2 postive numbers
A would be the largest of them all and greater than 0!
PLS HELP ME I NEED THIS ANSWER ASAP 20 POINTS!
1.Two numbers are divided and the quotient is positive. If one number is negative, what is true of the other number?
It could be positive or negative.
It is positive.
It is 0.
It is negative.
2.If 34 x 27 = 918, which of the following is true?
918 ÷ (-34) = 27
-918 ÷ 34 = -27
-918 ÷ 27 = 34
918 ÷ 27 = -34
3. Dividing by a negative number will give a negative quotient.
True
False
Answers
Answers:
1: Option B: It is positve
2: Option B: -918 ÷ 34 = -27
3: Option B: False
( if the questions context is ONLY talking about dividing positives by a negative then its true, else if they are talking about ANY circumstance, even if negatives are divided by a negative then its false )
Step-by-step explanation:
For question 3:
When you divide a negative number by a positive number then the quotient is negative. When you divide a positive number by a negative number then the quotient is also negative. When you divide two negative numbers then the quotient is positive. The same rules hold true for multiplication.
Hope this helped :)
The ordered pairs for two points are listed in the table. What is the equation, in slope-intercept form, of the line that contains these points? A. y = x + 1 B. y = -x – 1 C. y = -x + 1 D. y = x – 1
X Y
1 -2
4 -5
Answers
Answer:
B. y = -x – 1
Step-by-step explanation:
calculate slope =
y2-y1 = -5- (-2) = -3
x2-x1 = 4 - 1 = 3
m (slope) = -3/3 = -1
using points (1,-2) for calculating y-intercept:
y = mx + b
-2 = -1(1) + b
-2 = -1 + b
-1 = b
b = -1
answer is B y= -x - 1
Matching equations with diagrams & finding unknown angles #3
Which equation(s) and angle measurements go with the
diagram. Choose ALL that apply.
Find the value of a.
(Select all that apply.)
please help
Answers
Answer: a+51=90, a+51+90=180, 39
Step-by-step explanation:
a+51=90 works because the angles add to form a right angle.
a+51=180 does not work because the angles add to form a right angle, not a straight angle.
a+51+90=180 works because all those angles add to form a straight angle.
a+90=180 does not work because the unknown in this situation refers to a+51, not just a.
Solving the equation, we get a=39, so 39 is also an answer.
whats 1753x87694-463684=
help please
Answers
Answer:
65569898
Step-by-step explanation:
1753x87694=66033582
66033582-463684=65569898
write an equation that gives the proportional relationship of the graph.
A. y=1/4x
B. y=3x
C. y=4x
D. y=12x
Answers
Answer:
y=3x+4
Step-by-step explanation:
This is one equation.
Solve each equation and show all work plis 115 = -6k - 5
Answers
Answer:
Answer: k = - 20
Step-by-step explanation:
Solution
115 = -6k - 5 Add 5 to both sides
115+5 = - 6k - 5+5 Combine
120 = - 6k Divide by - 6
120/-6 = -6k/-6
-20 = k
Answer: -20
Step-by-step explanation:115 = -6k-5
Add5 to both sides
120= -6k
Divide both sides by 6
20= -k
K = -20
Pls help no wrong answers
Answers
Answer:
[tex]x\sqrt{2} = c[/tex]
Step-by-step explanation:
The Pythagorean theorem tells us that [tex]a^2+b^2=c^2[/tex], where a and b are the legs of a right triangle. If the length of each leg is x, we know by applying the theorem that [tex]x^2+x^2=c^2[/tex], so [tex]2x^2=c^2[/tex]. Applying the square root on both sides we get [tex]x\sqrt{2} = c[/tex]
Kyle baked 20 cookies. If
1
4
of the cookies are chocolate chip, how many chocolate chip cookies did he bake?
Answers
Answer:
5
1/4 of 20 is 5
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
20x1/4 or 20÷4=5
I need help ASAP please!!!!!!
Answers
Answer:
d
Step-by-step explanation:
surface area of cylinder=2πr(r+h)
2*3.14*4(4+7)
25.12*11
276.3in²
Answer:
Step-by-step explanation:
2πrh+2πr^2 is the formula for finding the surface area of a cylinder.
Since the question said to use 3.14 for pi,
2 * 3.14 * 4* 7 + 2*3.14*16
= 175.84 + 100.48
= 276.32 in^2
So, the answer is d, 276.3 (rounded to 1 decimal place)
1
2
3
4
5
6
7
8
9
10
Which equation can be used to find the unknown length, b, in this triangle?
5 in.
4 in
=
O 42+ b2 = 52
O 42-62 = 52
O 52 +42 – 52
Answers
Answer:
this question isn't quite clear, is the diagram of the triangle necessary for me to answer this question ?
Step-by-step explanation:
but by simple analysis,
since the "unknown" is b
option (a) which is 42 + b2 = 52 is the best equation.
because we are looking for the value of "b", therefore there should be letter "b" in equation we're going to use. hope you understand...
Hope this helps .
How do you solve for 4, 5, or 6?
Answers
Answer:
see images
Step-by-step explanation:
For all of these questions it helps to know the special right triangle, the 30°-60°-90° triangle. There is a special shortcut to find the sides of the 30°-60°-90° triangle.
For question4 and 5, these are equilateral triangles so the angles are all 60° So if you drop the height, it makes two 30°-60°-90° triangles. ***The short leg is HALF the hypotenuse or the hypotenuse is DOUBLE the short leg. The long leg is the short leg × sqroot3.***
This shortcut, special rt triangle info is used in all three of your questions. See image. Then you will have base and height or the apothem and side length for the Apothem Area formula:
A = 1/2 a•s•n
where a is the apothem, s is the side length and n is the number of sides. It looked like you already used this formula. See image.
HELP HELP HELP HELP PLSSSSSSSSSsss
Answers
Chris needs to buy a $100 graphing calculator for his math class his neighbors will pay him $5 per hour to babysit and father gave him a $10 for mowing the lawn what is the minimum number of hours he will need to babysit for him to buy his calculator.
I need a inequality, the anwser to the inequality and the final anwser
Answers
Answer:
18 hours
Step-by-step explanation:
Babysit: $5/hour
One time job: $10
Let x = number of hours.
5x + 10 ≥ 100
5x ≥ 90
x ≥ 18
Answer: 18 hours
jane can do a job in 3 hours, while gary can do the same job in 2 hours. if jane works alone for an hour before gary helps her how long will it take them to finish the job together
Answers
Answer: 2hrs?
Step-by-step explanation: 3-2=1+1 hour she took alone = 2hrs
Answer:
3 hours as Jane will take 1 hour before Gary and Gary will work for 2 hours. I think
can you help me i kinda in a hurry please
Answers
Answer:
x y
2 1
4 2
6 3
Step-by-step explanation:
For each x-value, y is half of it.
Divide each x-coordinate by 2 to find the corresponding y-coordinate.
x y
2 1
4 2
6 3
Step-by-step explanation:
Since y=1/2(x)
x y
2 1
4 2
6 3
Fill in this order
I hope it helped you
Derek is conducting a survey in his school about extracurricular activities. Choose three things he should do to get a representative sample and check that it is representative. CLEAR CHECK Derek should ask people what grade they are in. Derek should randomly choose people only in his grade. Derek should ask people their age. Derek should ask people what their favorite color is. Derek should survey everyone in the school. Derek should offer the survey in multiple languages. NEXT CLOSE Reference calculator formulas glossary CLOSE Language Changes the language of the audio snippets and the glossary ENGLISH
Answers
Yh I got one wrong but it's a little light green :) Hope this helps!
How many ways can eight different cans of soup be displayed in a row on a shelf?
Answers
Answer:
you can stack them
Step-by-step explanation:
this a wierd question
If Billy has a 116 foot long string of yarn, which is 44 feet longer than the string of yarn that Sally has, then how long is Sally's string?
Pls help
Answers
Answer:
Sally's string is 72 feet long.
Step-by-step explanation:
You just do 116-44= 72 feet!
Hope this helps!
Which statement explains the type of function that is represented by the equation
y = 2* + 1?
А The function is linear because it contains only one term.
В The function is linear because it is in slope-intercept form.
с The function is nonlinear because the variable is an exponent.
D
The function is nonlinear because it contains more than one term.
Answers
Answer:
C
Step-by-step explanation:
The function has a variable that will make the graph curve up.