Yes, both equations will always work, but yes, at times it is more logical to use one over the other. for instance:
x-4y=6
x+4y=12
we see here that elimination would best fit:
x+x+4y-4y=6+12
or:
x=2y-3
7x+3y-81=23
substitute (2y-3) for x.
Also, once you have a single placeholder, put it ito quadratic form (ax^2+bx+c=0)
and use the quadratic formula:
x=(-b±sqrt(b^2-4ac))/2a
Answer:
yes
Step-by-step explanation:
answer my other question hshkdhrjklw
Answer:
hfhedcvgfhsla
Step-by-step explanation:
al you have to do is laugh
Answer:
Cual es tu otra pregunta?
Step-by-step explanation:
An online shopping club has 12,500 members when it charges $8 per month for membership. For each $1 monthly increase in membership fee, the club loses approximately 500 of its existing members
Answer:
Revenue = Members * (Cost Per Member)
R = (12.500 *8) =
R= 100.000
R = (12.500 - 500) ( 8 + 1)=
R=12000*9=
R=108.000
Step-by-step explanation:
Revenue = Members * (Cost Per Member)
R = (12.500 *8) =
R= 100.000
R = (12.500 - 500) ( 8 + 1)=
R=12000*9=
R=108.000
Where x represents the number of $1 increases
Where x represents the number of $1 increases
URGENT!
need help
...
Answer:
92°
Step-by-step explanation:
If ΔABC ≈ ΔPQR then ∡A = ∡P
∡P is 92° so ∡A is 92°
Answer:
92 degrees
Step-by-step explanation:
Which of the following graphs could represent a 6th-degree polynomial function, with 3 distinct zeros, 1 zero with a multiplicity of 3, and a negative leading coefficient?
Answer:
a=1
b=5
c=1
d=3
1+5+1+3 = 10
Help / sorry it’s blurry
Answer:
jjsbajshsbssjsjwhhwwhjwejwjjw
pls it needs 2 b right
Which of the following is described as the amount by which the value of a country’s exports exceeds the cost of its imports?
tax excess
tariff
quota
trade surplus
Answer:
a tax excess
yw
Step-by-step explanation:
Solve the following system of equations graphically. y=2x-3 x+y=3 What is the solution set?
A. [(2.1))
B. {(-2, -1)]
C. {(-1,-2)]
D. {(1,2)
Miss Guydan and her friend Alyssa are collecting food for the local food bank. Their goal is to collect 2100 pounds of food. They start with 400 pounds of food donated by a local grocery store. Their goal is to collect 25 pounds of food per day. Write an equation that represent this situation. Define your variables.
Answer: Required equation: 400+25x = 2100
Variable: x = Number of days to donate 2100 pounds.
Step-by-step explanation:
Let x = Number of days.
y = Total pounds of food donated in x days.
Given: Initial amount of food = 400 pounds
Pounds of food donated per day = 25
Total food = Initial amount of food + (Pounds of food donated per day ) (Number of days)
y = 400+25x
Their goal is to collect 2100 pounds.
2100 = 400+25x [Substitute y= 2100]
Required equation: 400+25x = 2100
Variable: x = Number of days.
Write a situation to represent the equation
Y = 5x
Not understanding this
Answer:
120 yd
Step-by-step explanation:
To find the volume, we have to multiply the length, width, and height. We have 8, 6, and 10 as our length, width, and height. First, let's go with the length and width. 8 times 6 is 48. Since it's a triangle, we have to divide by 2. 48 divided by 2 is 24. Now let's multiply by the height. 24 times 5 is 120, so that will be your volume.
Match the vocabulary terms to the correct definitions.
1. the set of second coordinates in a relation, all possible y values in a function
linear function
2. a function which has one or two variables with no powers, this functions’ graph will always be a straight line
domain
3. the set of first coordinates in a relation, all possible x values in a function
range
4. a function which contains an expression within absolute value symbols
absolute value function
Answer:
Linear Function - A function that has one or two variables with no powers, this graph will always be a straight line. Domain - the set of second coordinates in a relation, all possible y values in a function . Range - the set of first coordinates in a relation, all possible x values in a function . Absolute Value function - A function which contains an expression within absolute value symbols . Step-by-step explanation: To be honest i guessed so if theses are wrong i am sorry . I really just wanted to help .
Linear Function - A function that has one or two variables with no powers, this graph will always be a straight line.
Domain - the set of second coordinates in a relation, all possible y values in a function .
Range - the set of first coordinates in a relation, all possible x values in a function . Absolute Value function -
A function which contains an expression within absolute value symbols .
Step-by-step explanation: To be honest i guessed so if theses are wrong i am sorry . I really just wanted to help .
Is 6/2 simplified ? ............
Answer:
No, 3
Step-by-step explanation:
6/2
How many times can 3 go into 6?
Answer is 3 times because 2 x 3 is 6.
Answer:
3/1
Step-by-step explanation:
Find the GCD (or HCF) of numerator and denominator
GCD of 6 and 2 is 2
Divide both the numerator and denominator by the GCD
6 ÷ 2 /2 ÷ 2
Reduced fraction:
3/ 1
Therefore, 6/2 simplified to lowest terms is 3/1.
pweez help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
A, B, C
Step-by-step explanation:
Original Equation: 5x=45
Dividing by 5 on both sides: 5x/5 = 45/5
The result: x=9
Check: 5(9)=45, 45 = 45.
Thus, the correct order of steps should be A, B, C.
Let me know if this helps!
Write an equation that represents the line.
use exact numbers
Answer:
y = 5/6x + 8/3
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
A pizza shop can put together 4 pizzas in 12 minutes. What is their production rate in pizzas per hour?
Answer:
I think it'd be 20 pizzas an hour
Step-by-step explanation:
PLEASE HELP ASAP
Evaluate bd/a +c if a=−2 , b=3 , c=−12 , and d=−4 .
Answer:
[tex] \frac{bd}{(a + c)} = \frac{3 \times ( - 4)}{ (- 2) + ( - 12)} = \frac{( - 12)}{( - 14)} = \frac{6}{7} \\[/tex]
6/7 is the right answer.Solve the equation below for x in terms of a 4(ax+3)-3ax=25+3a
Answer:
x = (13 + 3a) / a
Step-by-step explanation:
Given equation:
4(ax+3) - 3ax = 25 + 3a
Open parenthesis
4ax + 12 - 3ax = 25 + 3a
Collect like terms
4ax - 3ax = 25 + 3a - 12
Simplify
ax = 13 + 3a
x = (13 + 3a) / a
4(ax+3) - 3ax = 25 + 3a is equivalent to x = (13 + 3a) / a
whats the solution pls help
Answer:
1/x^7
Step-by-step explanation:
Answer:
1/x^7
Step-by-step explanation:
Which represents the decimal 0.071
A. 71 tenths
B. 71 hundredths
C. 71 thousandths
D. 71 Ten thousandths
Answer:
c 71 thousandths
Step-by-step explanation:
Please help me with this
Answer:
1. -10x + 9
2. 7/16x + 2
3. 2/3x -2
4. x + 1/3
5. -7x - 2/15
Answer:
1 is 6x+9
2 is 7/16x +2
3 is 2/3x -2
4 is x + 1/3
5 is -7x + -2/15
Step-by-step explanation:
i will mark brainliest if u answer
Step-by-step explanation:
The trick here is finding the scale used in the plotting. From the question, we can find two hints;
- Number of cat = 40. Since it has an equal scale for both men and women. It means the 40 / 2 = 20 (20 men and 20 women) has cat as their favorite pet.
- Since we know that the number of men is 20, we have to find what individual box represents. There are 4 boxes, this means each box would have a value of 20 / 4 = 5
Dog
For men, there are basically 5 lines (or boxes, if you prefer). This means 5 * 5 = 25
For women, there are basically 6 lines (or boxes, if you prefer). This means 6 * 5 = 30
Total frequency = 30 + 25 = 55
Hamster
For men, there are basically 3 lines (or boxes, if you prefer). This means 3 * 5 = 15
For women, there is basically 1 line (or box, if you prefer). This means 1 * 5 = 5
Total frequency = 15 + 5 = 20
Other
For men, there are basically 2 lines (or boxes, if you prefer). This means 2 * 5 = 10
For women, there are basically 3 lines (or boxes, if you prefer). This means 3 * 5 = 15
Total frequency = 10 + 15 = 25
Help - sorry it’s blurry I couldn’t fix it
Lesson 3.3T - Calculating Slope from Graphs
Name
Period
Date
Sketch a line that has the given slope.
1. Positive Slope
2. Negative Slope
3. Zero Slope
4. Undefined Slope
Itt
Draw a slope triangle for each line (when possible) and give the slope. Remember to designate
if slope is positive or negative.
5.
6.
Remember
that slope is
rise over run.
SLOPE =
SLOPE =
8.
2
4-3
.
-2
SLOPE
SLOPE =
EdGems Core - Course 3
Copyright 2018 All Rights Reserved
Lesson 3.3 - Calculating Slope from Graphs
Answer:
1. draw a line from the bottom left quadrant to the top right quadrant
2. draw a line from the top left quadrant to the bottom right quadrant
3. draw a horizontal line in any quadrants
4. draw a vertical line in any quadrants
5. Connect to the dots by going up to and right two. The slope will be 1.
6. Connect the dots by going up four and left two. The slope will be -2.
7. Connect the dots by going up for and right one. The slope will be 4.
8. You cannot connect the dots because it's a zero slope, so the slope is 0.
Step-by-step explanation:
Hope this helpsss! :)
A customer paid for different items at a farmer's
market. Find the cost for 1 pound for the
following item
$5 for 4 pounds of apples
What’s the x value of -4x+12=10?
Answer:
-4x+12=10
-4x+12-12=10-12
-4x= -2
-4x/-4=-2/-4
x=0.5
Step-by-step explanation:
Rewrite 5/3 as an improper fraction.
Answer:
2
1 - -
3
Step-by-step explanation:
gogiueueudkdkdkd
Answer:
1 2/3
Step-by-step explanation:
What is m
A.51
B.129
C.134
D.141
Answer:D 141 because
The value of the internal angle m from the heptagon is given by the equation m = 141°.
What is the sum of a polygon's internal angles?The formula returns the sum of the internal angles of a polygon.
The sum of the internal angles of an n-sided polygon is n = 180° (n - 2), where n is the number of sides = angle in degrees
Given the data,
Let's call the polygon a heptagon.
The polygon has n sides, which equals 7 sides.
Now, n = 180 is the sum of the interior angles of a polygon with n sides ( n - 2 )
7θ = 180 ( 7 - 2 )
7θ = 180 ( 5 )
When we simplify the equation, we obtain 7 = 900°.
A = 900° denotes the sum of the internal angles of the polygon.
And , the value of A = 120° + m° + 148° + 90° + 142° + 130° + 129°
900° = m + 759°
Subtracting 759° on both sides of the equation , we get
m = 141°
Hence , the interior angle ∠B = 141°
To understand more about the sum of a polygon's inner angles, click :
https://brainly.com/question/14611583
#SPJ2
ecan someone plase help me on this
Answer:
I think it is C that would be the best answer
Look at the following numbers:
-6, 0, 6, 12
Which pair of numbers has a sum of O?
O 6, 12
O 0,6
O-6,0
O 6, -6
Answer: 6,-6
Step-by-step explanation:
Because when you add the same number and one of them is a negative it will always be a zero. For example: (-2+2)= 0
I'm sorry if this didn't help.
DOES ANYONE KNOW WHAT THE CORRDINTS ARE??!!
Answer:
-7 and -5
Step-by-step explanation:
It is where the parabola intercepts the x axis which is -7 and -5
