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Related Questions
PLEASE HELPP
What is the solution to the following system of equations?
x − 3y = 6
2x + 2y = 4
(-1, 3)
(3, -1)
(1, -3)
(-3, 1)
Answers
Answer:
The solution to the system of equations be:
[tex]x=3,\:y=-1[/tex]
Hece, option B is correct.
Step-by-step explanation:
Given the system of equations
[tex]\begin{bmatrix}x-3y=6\\ 2x+2y=4\end{bmatrix}[/tex]
Multiply x − 3y = 6 by 2: 2x-6y=12
[tex]\begin{bmatrix}2x-6y=12\\ 2x+2y=4\end{bmatrix}[/tex]
so
[tex]2x+2y=4[/tex]
[tex]-[/tex]
[tex]\underline{2x-6y=12}[/tex]
[tex]8y=-8[/tex]
so the system of equations becomes
[tex]\begin{bmatrix}2x-6y=12\\ 8y=-8\end{bmatrix}[/tex]
Solve 8y = -8 for y
[tex]8y=-8[/tex]
Divide both sides by 8
[tex]\frac{8y}{8}=\frac{-8}{8}[/tex]
[tex]y=-1[/tex]
[tex]\mathrm{For\:}2x-6y=12\mathrm{\:plug\:in\:}y=-1[/tex]
[tex]2x-6\left(-1\right)=12[/tex]
[tex]2x+6=12[/tex]
subtract 6 from both sides
[tex]2x+6-6=12-6[/tex]
[tex]2x=6[/tex]
Divide both sides by 2
[tex]\frac{2x}{2}=\frac{6}{2}[/tex]
[tex]x=3[/tex]
Therefore, the solution to the system of equations be:
[tex]x=3,\:y=-1[/tex]
Hence, option B is correct.
⚽ From Equation (i) we get :
x = 6 + 3y......[Equation (iii)]⚽ Now, Substitute the equation (iii) in equation (ii) we get :
→ 2(6 + 3y) + 2y = 4
→ 12 + 6y + 2y = 4
→ 8y = 4 - 12
→ 8y = -8
→ y = -8 ÷ 8
→ y = -1
⚽ Now Substituting value of y = -1 in equation (iii) we get :
→ x = 6 + 3y
→ x = 6 + 3(-1)
→ x = 6 + (-3)
→ x = 6 - 3
→ x = 3
Hence,the value of x = 3 and value of y = -1.Graph x≥2.
A graph showing a range of negative three to two on the x and y axes. A dotted line with arrows at both ends passes through the x axis at two and runs parallel to the y axis. The graph is shaded to the right of the line.
A graph showing a range of negative three to two on the x and y axes. A solid line with arrows at both ends passes through the x axis at two and runs parallel to the y axis. The graph is shaded to the left of the line.
A graph showing a range of negative three to two on the x and y axes. A solid line with arrows at both ends passes through the x axis at two and runs parallel to the y axis. The graph is shaded to the right of the line.
A graph showing a range of negative three to two on the x and y axes. A dotted line with arrows at both ends that passes through the x axis at two and runs parallel to the y axis. The graph is shaded to the left of the line.
Answers
Answer:
The graph is attached
x ≥ 2Covers the shaded space to the right from solid vertical line x = 2, which is parallel to y-axis
Option C is likely the answer
A graph showing a range of negative three to two on the x and y axes. A solid line with arrows at both ends passes through the x axis at two and runs parallel to the y axis. The graph is shaded to the right of the line.Answer:
The answer is option C.
Just finished the test lol. Good luck!
A triangle has squares on its three sides as shown below what is the value of x
Answers
Answer:
5 cm
Step-by-step explanation:
Thomas and Audrey ordered 1 salad for $8, 2 pizzas for x dollars each, and 2 glasses of juice for $3 each. Their total cost in dollars can be represented by the expression 8 + 2 ( x + 3) . Which expression is equivalent to 8 + 2 ( x + 3)?
Answers
Solve the equation. −2+j=−22
Answers
Answer:
j = - 20
Step-by-step explanation:
-2 + j = -22
-2 + 2 + j = -22 + 2
j = - 20
j= -20 hope that helped
Pls help it for a final. I put picture
Answers
A dairy cow can fill a ½ gallon container every ¼ of an hour. At this rate, how many gallons can it fill in five hours?
Answers
Work out the Value of the missing fraction 1/7+ ?=1/3
Answers
Step-by-step explanation:
1/7 + ? = 1/3
? = 1/3 - 1/7 = 7/21 - 3/21 = 4/21.
The missing fraction is 4/21.
Please help with question 6 (last one)❤️
Answers
Answer:
14
Hope this helps
Step-by-step explanation:
yw
Answer:
First choice, 13
Step-by-step explanation:
1/16 times 208 = 208/16 = 13
Explain how to create an equation with infinity many solutions.
Answers
Example: 2(x+3) = 2x + 6
you need both sides of the equation to be equal to each other.
ex: 1 = 1
x = x
10 - x = -x + 10
this may not be what you're looking for and if it isn't just let me know
PLS HELP!!
Pls help it’s due today!!!!
Answers
Answer:
the last on bottom right :)
Step-by-step explanation:
Answer:
D (bottom right)
Step-by-step explanation:
y - intercept is 7 and slope is 3
Hope this helps. Pls give brainliest.
SOMEONE HELP I WILL KISS U!!!!! NEED THIS EXTRA CREDIT DONE BY MIDNIGHT!!
Answers
Answer:
A, C, D, F, G
Explanation:
A rational number is any integer, fraction, terminating decimal, or repeating decimal. :D
Your are on a roller coaster that begin 1/5 mile above ground. The roller coaster descends 1/2 mile. What is the roller coatser new location after descending
Answers
Answer:
Roller coaster is 3/10 miles in ground.
Step-by-step explanation:
Given:
Height at point = 1/5 mile
Descends height = 1/2 miles
Find:
Current location
Computation:
Current location = Height at point - Descends height
Current location = 1/5 - 1/2
Current location = -3/10
So,
Roller coaster is 3/10 miles in ground.
Naveen is a video game designer creating a new video game in the racing genre. Outline the elements of the game that Naveen will focus on in his design.
Answers
Answer:
Hi
Step-by-step explanation:
it will be C
تفتطع شركة الهاتف مبلغ (275) درهم إماراتي كاشتراك شهري بالإضافة لمبلغ (150) درهم إماراتي كرسوم لتفعيل الخدمة تدفع لمرة
واحدة.
اكتب تعبيرا يميل التكلفة الإجمالية لرسوم شركة الهاتف حيث (m) تمثل عدد الأشهر.
Answers
EXCUSE ME write IN ENGLISH LANGUAGE WE DONT UNDERSTAND YOUR question
Suppose you know that the volume of the following prism is represent by V(x) = -2x^3 + 14x^2 + 120x.
Answers
Step-by-step explanation:
-2x³ + 14x² + 120x
= -2x(x² - 7x - 60)
= -2x(x - 12)(x + 5).
The other 2 dimensions are -2x and (x + 5).
When using a graphing calculator to maximise the volume of the prism, we get x = 7.378. However this value is not reasonable as it makes -2x and (x - 12) negative, which are the sides of the prism.
What is 5 billion times 0
Answers
Answer:
0
Step-by-step explanation:
Anything multiplied by 0 is 0
(77) – 32
a. - 2
b. 16
C. 52
d. - 16
Answers
Answer:
b. 16 not sure its correct just trying to help out. :)
Step-by-step explanation:
a carpenter sands 1/2 of a dresser in 3/4 of an hour. At this rate, how long does it take the carpenter to sand 1 dresser
Answers
Answer:
hour and a half
Step-by-step explanation:
How many solutions exist for the given equation?
1/2(x+12) = 4x - 1
Zero
One
Two
Infinitely many
Answers
Answer:
1
Step-by-step explanation:
Answer:
One
Step-by-step explanation:
[tex] \frac{1}{2} (x +12) = 4x - 1 \\ \\ \frac{1}{2} x + \frac{1}{2} \times 12 = 4x - 1 \\ \\ \frac{1}{2} x + 6 = 4x - 1 \\ \\ 6 + 1 = 4x - \frac{1}{2} x \\ \\ 7 = \frac{8x - x}{2} \\ \\ 7 = \frac{7}{2} x \\ \\ 7 \times 2 = 7x \\ \\ x = \frac{7 \times 2}{7} \\ \\ x = 2[/tex]
So, there exist only one solution for the given equation.
20)
The perimeter of a triangle is given by the formula P= a + b + c Solved for b, this formula becomes b =
A
P+ a + c
B)
Р-а - с
P-a-c
р- а - с
Answers
Answer:
sin B sin C. When this equation is combined with the previous equation, we obtain the Law of. Sines. ... ас. B. FIGURE 4.5 Solving an. ASA triangle. Keep in mind that we must be given one of the three ratios to apply the ...
Use the graph that shows the solution to f(x) = g(x).
f(x) = 27* - 4
g(x) = 2x² - 4
f(x)
-2
What is the solution to f (x) = g(x)?
Select each correct answer
9(X)
x = -1
x = 0
X = 1
913
-3 -2
x=2
13
f(x)
3
4
5
7
8
Finish
Answers
Answer:(9X+3Y
Step-by-step explanation:
MULTIPLY BY 4
What is an equation of the line that passes through the points (1, 2) and (2, -1)?
Put your answer in fully reduced form.
Answers
Answer:
y = -x + 3
Step-by-step explanation:
The equation of a straight line is generally written as;
y = mx + b
where m is the slope and b is the intercept
To get the slope we use the slope formula
Mathematically, that is;
m = (y2-y1)/(x2-x1) = (-1-2)/2-1 = -3/1 = -1
To get the intercept we equate any of the points to the partial equation that we have;
From;
y = -x + b
2 = -1 + b
b = 1 + 2 = 3
So the equation is;
y = -x + 3
Solve.
y= 2x - 6
4x – 2y = 14
Use the substitution method.
Answers
Answer:
y=2x-6. ---------(1)
4x-2y=14. --------(2)
substituting equation 2 in 1
4x-2(2x-6)=14
4x-4x+12=14
so it has no solution
Step-by-step explanation:
As you can see in the image below, the answer is no solution.
What is the x -value of the solution to this system of equations?
x = 2 y − 4
7 x + 5y = −66
Answers
Answer:
It’s either a or b on edge
Step-by-step explanation:
The radius of a circle is 8 yards. What is the circle's area?
Answers
Answer:
201.06 trust me
Step-by-step explanation:
agenthammerx please help What is BPEMDAS
Answers
Answer:
BPEMDAS is the order of operations that every mathematician must follow.
General Formulas and Concepts:
Order of Operations: BPEMDAS
1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction
- Left to Right
Step-by-step explanation:
When we are given an evaluative expression, we must follow Order of Operations: BPEMDAS to evaluate the given expression. Here’s an example:
[2 + (4 / 2)] * 10
Evaluating this:
1. [Brackets] (Parenthesis) Divide: [2 + 2] * 10
2. [Brackets] Add: 4 * 10
3. Multiply: 40
Here we see that we use Order of Operations: BPEMDAS to evaluate a given expression.
A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Each small box has 150 nails and each large box has 450 nails. The contractor bought twice as many large boxes as small boxes, which altogether had 4200 nails. Write a system of equations that could be used to determine the number of small boxes purchased and the number of large boxes purchased. Define the variables that you use to write the system.
Answers
Step-by-step explanation:
Let s represent the number of small boxes and l represent the number of large boxes.
We have 2s = l and 150s + 450l = 4200.
Therefore 150s + 450(2s) = 4200,
150s + 900s = 4200, 1050s = 4200, s = 4.
l = 2s = 2(4) = 8.
Hence there are 4 small boxes and 8 large boxes.
WILL MARK BRAINLIEST IF CORRECT!
Answers
Which equation describes the line with slope 5 that contains the point (-2,4)?
(Question 20)
Answers
Answer:
4x-3
Step-by-step explanation:
Bc i said so