Which ordered pairs in the form (x, y) are solutions to the equation
7x−5y=28?
Select each correct answer.
(−6, −14)
(−1, −7)
(7, 9)
(4, 10)
Answer:
(-6, -14), (-1,-7)
Step-by-step explanation:
The equation is a plug and play just plug in the X and Y values of your original equation.
5. Which point lies on the line: y - 4 = -3(x + 2)?
Answer:
(- 2, 4 )
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
y - 4 = - 3(x + 2) ← is in point- slope form
with (a, b ) = (- 2, 4 )
What is the LCM for 12 and 4
Answer:
12
Step-by-step explanation:
You spin the spinner and flip a coin. Find the probability of the compound event.
A spinner is divided into 5 equal regions. The sections are labeled 1, 2, 3, 4, and 5.
The probability of spinning a prime number and not flipping heads is
.
3/10
2, 3, and 4 are prime numbers. Those are three numbers worth. The maximum number on the spinner is 5 so you multiply 5 by 2 and get 10. Again, 3 numbers are prime numbers. So from there you add 3 and 10 as a fraction and get 3/10
-papichulo is back
find the difference and round to the nearest hundreths if necessary : 6.04 / 2.4
Answer:
2.52
Step-by-step explanation:
8xy + 14x + 4x - 2xy + 6y
Answer:
6xy + 18x + 6y
Hope this helps!
Answer:
i dont know the answer to this
Step-by-step explanation:
Because i just dont
Divide this polynomial:)
Answer:
The answer is 3x^2-4x-4+1/2x-1
Step-by-step explanation:
Hope this helps, and sorry if it's wrong.
Graph the solution to this system of inequalities in the coordinate plane.
3y > 2x + 12
2x + y< -5
Answer:
The vertices of both where they cross show (-4,1)
Step-by-step explanation:
3y > 2x + 12
x < 3(y - 4) / 2
y > 2 (x + 6) / 2
2x + y< -5
= x> -5
set = together
x < 3(y - 4) / 2 shows dotted ascending line attached through x=-6
This means x=--6 y = 0
x>-5 shows boundary dotted vertical line through -5
this means x = -5 y = 0
If it had been x ≥ -5 it would have been solid boundary line.
The area within the dotted lines create a right angle triangle where the far left angle shows ascends to (-6, 0) and crosses y at 0,4 however the shaded area will not got hat far and stop at -4,0 and the area below.
As seen attached when both are plotted with dash dotted boundary lines.
The vertices of both show (-5,1)
Help asap will give brainliest!!!!
Answer:
C
Step-by-step explanation:
ley y = f(x) and rearrange making x the subject
y = [tex]\frac{1}{x+5}[/tex] - 1 ( add 1 to both sides )
y + 1 = [tex]\frac{1}{x+5}[/tex] ( multiply both sides by (x + 5)
(y + 1)(x + 5) = 1 ← expand factors using FOIL
xy + 5y + x + 5 = 1 , that is
xy + x + 5y + 5 = 1 ( factor first/second and third/fourth terms on left side )
x(y + 1) + 5(y + 1) = 1 ← factor out (y + 1) from each term on left side
(y + 1)(x + 5) = 1 ( divide both sides by (y + 1) )
x + 5 = [tex]\frac{1}{y+1}[/tex] ( subtract 5 from both sides )
x = [tex]\frac{1}{y+1}[/tex] - 5
Change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then
[tex]f^{-1}[/tex] (x) = [tex]\frac{1}{x+1}[/tex] - 5 where x ≠ - 1
What are the solutions to the system of equations graphed below?
8
6
4
2
-
-6
-4
4
6.
8
O A. (2, 8) and (0, -3)
B. (-3,0) and (3, 0)
C. (4,8) and (0, -8)
O D. (2,0) and (0,8)
Answer:
B. (-3,0) and (3,0)
Step-by-step explanation:
The curved line crosses through both of these points, and these points are the only ones out of all the choices, to line up perfectly. Remember that ordered pairs (x,y) represent the x and y values.
I really tried to explain this to you, so let me know if this helped :)
The solution of the system of equations graphed are (4,8) and (0, -8)
What is a system of equations?A system of equations is a set or collection of two or more equations with the same variables. The common solutions are the intersecting points of the equations.
Given that is a graph of system of equations, we need to find the solution,
We know that the common solutions are the intersecting points of the equations.
So, here the curve and the line are intersecting at (4,8) and (0, -8)
Hence, the solution of the system of equations graphed are (4,8) and (0, -8)
Learn more about system of equations click;
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8+(2+6)=(8+2)+6 what property justifies that statement
Answer:
Associative Property of Addition
Step-by-step explanation:
According to the Associative Property of Addition, when three real numbers are added, it makes no difference which two are added first.
(a + b) + c = a + (b + c)
Therefore, 8 + (2 + 6) = (8 + 2) + 6 is an example of the Associative Property of Addition.
Please mark my answer as the Brainliest, if you find my explanation helpful :)
Please help me solve this ASAP
Answer:
$21
Step-by-step explanation:
Let the amount Lori bought the shirt and the hat be $x, if she bought them at half off sale, the initial price of both item will be 2 × $x
If she spent $21 on both items, the initial price will have been 2 x $21 = $42 where x is $21
Original price of the hat and shirt is therefore $42. Since both are on half off sale, the initial price is the hat will be $42/2 = $21
i need help! do i subtract the 45-64? or add!?
Answer:
19°
Step-by-step explanation:
180-64=116
116+45=161
180-161=19
Answer:
B) 19
Step-by-step explanation:
find the other angle of W first.
to do that, take 180 - 64
that makes angle W 116
add angle W and angle Y
116 +45 = 161
take 180 - your answer
180 - 161 = 19
B is your answer
have a wonderful day <3
PLZ Help!!!
the ratio of a rectangle's length to width is 4:17. if the longer side is 31.5 in., find the width, perimeter, and area of this rectangle
Answer:
L = 31.5
w = (4/7)31.5 = 18
p = 2 * 31.5 + 2 * 18
A = 31.5 * 18
Step-by-step explanation:
Yw
What happens to the mean of the data set shown below if the number 3 is added to the data set? A. The mean increases by 2. B. The mean does not change. C. The mean decreases by 0.25. D. The mean increases by 1.
Answer: B : Mean Does Not change
Step-by-step explanation:
Answer: The answer is C
Step-by-step explanation:
I took the quiz and put B and got it wrong so don't trust his answer
Help I’ll mark as brainliest !!!
Answer:
a. substracting...................
Sally is 3 years older than Jill was 5 years ago. Write an algebraic expression for both of their ages. If Jill is 10, how old is Sally?
Answer: 13 (and Sally will always be 3 years older than Jill)
Step-by-step explanation:
Let S and J stand for Sally and Jill's ages. We are told:
(S-5) = (J-5)+3 [Sally is 3 years older than Jill was 5 years ago] The 5 years ago is the reason for the (S-5) and (J-5) expressions.If Jill is 10, how old is Sally?
(S-5) = (J-5)+3
(S-5) = (10-5)+3
S-5 = 8
S = 13
We actually don't really need an equation for solving this, other than the question asks us to write one. It doesn't matter how many years later, since Sally is 3 years older, she will always remain 3 years older, if we ignore the likelihood that the statement doesn't hold true for the period between their actual birthdays.
May I please receive help?
Please?
Answer:
Step-by-step explanation:
Rewrite all the equations in standard form of y=mx+b
1. Parallel: They have the same slope of -(3/5)
2. Neither
3. Neither
The edges on Zachary's snowboard are chlpped and dented from riding over rocks, so Zachary wants to buy a new one. He can't afford the board he wants, so he opens a hot chocolate stand near his house. Zachary figures out how many cups of hot chocolate he must sell to have enough money for the snowboard. One cold, snowy Saturday, Zachary sells 43 cups of hot chocolate. Now, he needs to sell 47 more cups to buy the snowboard. Which equation can you use to find the total number of cups c Zachary must sell to buy the snowboard?
Answer:
c-43=47
Step-by-step explanation:
Well this is kinda obvious.
He already sold 43 cups of hot choclate and he needed 47 more.
So the total amount of cups is (c) so we can make an equation like this
c-43 (since theres total which is unknown so ”c” and then Theres the already sold 43 cups).
c-43=47 (the 47 is the amount he needs to sell)
So final equation to determine total cups needed
c-43=47
What is the quotient
2mºnº
4mºn
in simplest form? Assume m+0,1 +0.
man
2
m7n
2
6mln
Ο Ο.
8mn
Step-by-step explanation:
the first option : -(m¹²n⁶)/2
why ?
we can go through factor by factor of the multiplication/fraction.
2/-4 = -1/2
m⁹/m^-3 = m^(9 - -3) = m¹²
n⁴/n^‐2 = n^(4 ‐ -2) = n⁶
when we put all 3 factors back together, we get the mentioned result.
please help me because im doing my math right but i cant get the answer
This is not math sorry! Also this is multiple choice so I have to chose all the answers thst apply
what is the answer to 4x=8
Answer:
2
Step-by-step explanation:
using the graph, determine the coordinates of the roots of the parabola
Answer:
(-1, 4)
Step-by-step explanation:
Use of the coordinate plane.
The vertex of the parabola is 1 to the left and up 4.
Think of the vertex as where the curve starts.
Answer:
-3 and 1
Step-by-step explanation:
Hello!
The roots of the parabola are the intersections of the graph and the x-axis (y = 0).
Since the graph's vertex is above the x-axis and opens down, the graph has two roots.
The points of intersection are:
[tex](-3,0)[/tex][tex](1,0)[/tex]Therefore, the roots of the parabola are -3 and 1.
Write
2^
3/2
in surd form.
Answer:
[tex] {2}^{ \frac{3}{2} } = \sqrt[3]{ {2}^{2} }\\= \sqrt[3]{ {4}}[/tex]
The surd form is : [tex](\sqrt{2} )^3[/tex]
[tex](\sqrt{2} )^3=\sqrt{2}. \sqrt{2}. \sqrt{2}[/tex]
It gives in the approximate value is : 2.80
What is surd form?Surds are the square roots (√) of numbers that cannot be simplified into a whole or rational number. It cannot be accurately represented in a fraction. In other words, a surd is a root of the whole number that has an irrational value. Consider an example, √2 ≈ 1.414213. It is more accurate if we leave it as a surd √2.
We have from the question is:
Write in the surd form:
=> [tex]2^\frac{3}{2}[/tex]
Now, According to the definition:
Write like this:
[tex]2^\frac{3}{2}=((\sqrt{2} )^2)^\frac{3}{2}[/tex]
Cancel out the:
2 × 3/2 = 3
So, [tex](\sqrt{2} )^3=\sqrt{2}. \sqrt{2}. \sqrt{2}[/tex]
It gives in the approximate value is : 2.80
But, The surd form is : [tex](\sqrt{2} )^3[/tex]
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solve the triangle congruence using the word bank
Answer:
I don't know I'm sorry man!
Look at link/picture
cual es la razon de 0.240 y 0.12
Answer:
8686787876876
Step-by-step explanation:
67886868768768p765756u565656t443o
What is the equation for the line shown, in slope-intercept form?
Question 8 options:
A) y = 2x - 2
B) y = -2x + 4
C) y = -4x - 2
D) y = -2x - 4
Answer: Solution In Photo
Answer:
D) y = -2x - 4Step-by-step explanation:
Use the points:
(-2, 0) and (0, -4)The y- intercept is - 4 and the slope is:
m = (-4 - 0)/(0 - (-2)) = -2The line is:
y = -2x - 4Correct choice is D
Write down in terms of n, an expression for the nth term
of the following sequence
-8 -15 -22 -29 -36
Answer:
[tex]a_{n}[/tex] = - 7n - 1
Step-by-step explanation:
There is a common difference between consecutive terms , that is
- 15 - (- 8) = - 22 - (- 15) = - 29 - (- 22) = - 36 - (- 29) = - 7
This indicates the sequence is arithmetic with nth term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 8 and d = - 7 , then
[tex]a_{n}[/tex] = - 8 - 7(n - 1) = - 8 - 7n + 7 = - 7n - 1