Competency: Write the linear equations Ax + By = C. Give the value of A,B, and C,.
Answers
Answer:
see explanation
Step-by-step explanation:
(1)
y = - x + 4 ( add x to both sides )
x + y = 4
with A = 1, B = 1, C = 4
(2)
y = 5x + 7 ( subtract y from both sides )
0 = 5x - y + 7 ( subtract 7 from both sides )
- 7 = 5x - y , that is
5x - y = - 7
with A = 5, B = - 1, C = - 7
----------------------------------------------------------
(1)
2x + y = 9 ( subtract 2x from both sides )
y = - 2x + 9
with m = - 2, c = 9
(2)
5x + 2y = 7 ( subtract 5x from both sides )
2y = - 5x + 7 ( divide terms by 2 )
y = - [tex]\frac{5}{2}[/tex] x + [tex]\frac{7}{2}[/tex]
with m = - [tex]\frac{5}{2}[/tex] , c = [tex]\frac{7}{2}[/tex]
Related Questions
Please help! You don't have to show work, just tell me the answer
Answers
Answer:
1A. acute. all of the angles are under 90%. acute is under 90%, right is 90%, and obtuse is over 90%
2A. scalene. isosceles is all sides are the same length, and equilateral is all sides are the same length AND all the angles are 60%. with scalene all sides can be different lengths, and angles can be different
3. no. the rule for making a triangle is that any 2 sides added up, must be more than the 3rd side. so 6+2, 6+4 work, but 2+4 is 6, which is not greater than 6, the third side
Step-by-step explanation:
exercise equipment advertised at $2200 is sold on sale for $1950. What percentage discount is this
Answers
Answer: $2200 is sold on sale for $1950.
Step-by-step explanation:
Which of the following best describes the equation below?
y = 8x + 7
A.
neither linear nor nonlinear
B.
linear
C.
both linear and nonlinear
D.
nonlinear
Answers
Answer:
B
Step-by-step explanation:
PLZ HELP!!! ASAP!!!PLZ!!!
Answers
Answer: 150 cm2
Step-by-step explanation:
60x5 divided by 2 its pretty easy.
Debra Arthur earns a weekly salary of $625 at All Sports.
Next month she will be promoted from assistant buyer to head buyer.
In her new position she will
be paid $1,450 semimonthly.
How much more per year will she earn as head buyer than as assistant buyer?
Answers
find the circumference of each circle. Use 3.14 or 22/7 for pi. round to the nearest tenth of necessary.
Answers
Answer:
21.98
Step-by-step explanation:
Carl and Nicole are raising money to purchase basketballs for their school's team. The more money they raise, the more basketballs they will be able to purchase for the school. What is the independent variable?
Answers
Answer:
The amount of money raised
Step-by-step explanation:
The amount of basket balls depends on the money rasied and is therefore dependant, that leaves the money, which is completely independent.
The amount of the money that they've raised.
which must be true? Select all that apply.
Answers
Answer:
A, B, E
Step-by-step explanation:
i’ll mark branliest plzzz answer
Answers
Answer:
AB = 10 m
Step-by-step explanation:
Given that <ACB = <ECD, then triangles ABC and EDC are similar.
Let the height of the solar panel (AB) be represented by x. Thus by comparing the triangles, we have;
[tex]\frac{x}{6}[/tex] = [tex]\frac{45}{75}[/tex]
45x = 6 x 75
45x = 450
x = [tex]\frac{450}{45}[/tex]
x = 10
The height of the solar panel is determined to be 10 m.
☡☡please help asap i dont understand this ⚠⚠
Answers
Answer:
B (the second one)
Step-by-step explanation:
The thin yellow line in A only goes from 14-30. However, the correct numbers listed range from 12-30. Line B matches up with this data
What is the additive inverse of (- 2) ?
Answers
Answer:
2 because it holds the same value as -2 and its the additive inverse
Find f(-4) if f(x) = -3x - 5
Answers
Answer:
see photo below
Step-by-step explanation:
This actual has a photo attached not a link
BRAINLY AND 5 STARS AND THANK YOU IF CORRECT, NO FILE HOSTINGS OR REPORT!
Flavia has a bag with 8 white balls, 9 red balls, 14 green balls, and 10 orange balls. If she chooses two balls from the bag without replacement, what is the sample space of the second choice? Write just the number.
Answers
Answer:
6
Step-by-step explanation:
i hope its right and if not im sorry im not good with math
What is the solution to the equation 4 + 3/2y = 6?
y = 1
y=4
y = 500
y = 2000
Answers
Answer:
y=4/3
Step-by-step explanation:
First subtract 4
3/2y=2 then Divide by 3/2(or multiply by 2/3)
2*2/3
Answer: y=4
Step-by-step explanation:
A 14-in. diameter pizza is cut into 6 equal
slices. About how many square inches of
pizza are in each slice? Round to the
nearest square inch.
Answers
Answer:
25.64 in² per slice
Step-by-step explanation:
14 diameter = 7 radius
area of whole = π7² = 153.86 in²
153.86/6 = 25.64 in²
Determine the area of the parallelogram.use proper units
Answers
Answer:
180 in^2
Step-by-step explanation:
to find the height you need to look at the triangle and apply pythagorean theorem
5^2=x^2=13^2
25+x^2=169
x^2=144
x=12
now we can find the area of the parallelogram:
b*h=area
15*12=180 in^2
The area of the parallelogram is 180 in^2
The measures of the angles of △ABC are given by the expressions in the table.
Angle Measure
A (4x−13)°
B 15°
C (x+18)∘
What is the measure of ∠A and ∠C?
Answers
Answer:
A=82
C=83
X+y=60
X=30+50+80
X=80
You scored 85% on your math quiz. The quiz was out of 50 points. How many points did you get?
Answers
Answer:
43
Step-by-step explanation:
Find the x-coordinate of the vertex of a parabola if the x-intercepts are (3,0) and
(-9,0)
Answers
Answer:
x = -3
Step-by-step explanation:
The vertex lies on the axis of symmetry, whose x-coordinate is halfway between -9 and 3: x = -3
7. Which expression is equivalent to 3-4.3^6?
Answers
PLEASE HELP IM BEING TIMED WILL MARK BRAINLIEST!!
Find the measure of the arc or angle indicated.
Answers
Step-by-step explanation:
7.B
8.C
9.A
10.D
.......
Ile to 12308+11093=??????pomóżcie
Answers
Answer:
Twoja odpowiedź brzmi 23401.
Spójrz na zdjęcie, aby uzyskać dalsze wyjaśnienia.
Sami was asked to solve the following system of equations using substitution.
y=6x -4
y=2x
Here is the work that sami did:
2x = 6x -4
8x = -4
x = -0.5
And then to find y: y= 2 (-0.5) = -1
so Sami's answer for the point of intersection was (-0.5, -1).
Clearly state Sami's one error and then give the correct ordered pair for where the lines cross.
Answers
Answer:
see explanation
Step-by-step explanation:
Sami's error is in the second line of working
2x = 6x - 4 ← correct substitution ( subtract 6x from both sides, Sami has added 6x )
- 4x = - 4 ← correct second line ( divide both sides by - 4 )
x = 1
Substitute x = 1 into either of the 2 equations and evaluate for y
Substituting into the second equation
y = 2x = 2(1) = 2
solution is (1, 2 )
what is the slope of the line?
What is the y-intercept?
Write the equation of the line?
Answers
Answer:
The slope is 2
The y-intercept is 3
The equation is y = 2x +3
Step-by-step explanation:
The equation goes up 2 squares and over 1 square. 2/1 = 2
For y-intercept, look at the y-axis
The equation is supposed to be written as y = mx + b
m being the slope and b being the y-intercept.
3/4x=2x−5
NEED ANSWER WITHIN THE NEXT HOUR PLEASE GIVING 20 PTS!!!
Answers
Answer:
x = 4
Step-by-step explanation:
1. Write the equation
3/4x = 2x - 5
2. Get the variables on the same side
Let's subtract 2x! Now, since math is a veryyy jealous subject, you're going to do it on the other side too!
-1.25x = -5
3. Divide both sides by -1.25
x = 4
Thank you for the points!!!
x over 5 + x over 2 = 14
Answers
Answer:
Step-by-step explanation:
x = 20
Answer:
20
Step-by-step Explanation:
Find the GCF. (Greatest Common Factor) Use^ to show exponents if
needed. *
3x5 + 6x + 6
Answers
Answer:
the greatest common factor is 3
i think this is correct
Zach has an above-ground pool that has a radius of 5.5 feet. He wants to put a new wall liner around his pool and needs to know the circumference of the pool. Find the circumference of the pool to the nearest hundredth.
Answers
Answer: 34.54feet
Step-by-step explanation:
Thw circumference of the pool will be calculated by using the formula:
= 2πr
where
π = 3.14
r = 5.5
Therefore, circumference = 2πr
= 2 × 3.14 × 5.5
= 34.54feet
Therefore, the circumference of the pool to the nearest hundredth is 34.54feet.
PLEASE HELP!! 30 points :)
What's the volume of a cube with a side length of 11 inches
• 33 in
• 121 in
• 726 in
• 1331 in
Answers
Answer:
V= 1331in³
Step-by-step explanation:
Answer:
1331 in
Step-by-step explanation:
Can someone please help me with this escape room
It is hard i tried
I will mark you brainliest for the correct answer
1-7 is A-F
You have to match the code with the answer of the letter
Please help!!!!!!!!
Answers
A = 8
B = 7
C = -3
D = 6
E = 1
F = 2
Code: 2 (7 + 6) + 8 [1 -(-3)]
Code: 2 (7 + 6) + 8 (1 + 3)