Answer:
Infinite number of solutions
Step-by-step explanation:
Write these equations in a column:
-6x+y=-21
2x-1/3y=7
Use elimination by addition and subtraction. Start by multiplying the 2nd equation by 3, obtaining:
-6x+y=-21
6x - y= 21
----------------
0 - 0 = 0
There are an infinite number of solutions. The two equations shown immediately above are multiples of one another.
2log2(x + 15)_log2x=6
Answer:
hope it helps u
hope this is what u want
9514 1404 393
Answer:
x = 9 or 25
Step-by-step explanation:
Taking antilogs and solving the quadratic, you have ...
[tex]\dfrac{(x+15)^2}{x}=2^6\\\\x^2 +30x +225 = 64x\qquad\text{multiply by x}\\\\x^2 -34x +225 = 0\qquad\text{subtract $64x$}\\\\(x -25)(x -9)=0\qquad\text{factor}\\\\\boxed{x=25\quad\text{or}\quad x=9} \qquad\text{values that make the factors 0}[/tex]
7.2 is 15% of what number?
Answer:
48
Step-by-step explanation:
The first night in a hotel costs 60 dollars. All additional nights cost 49 dollars. How many nights did we stay
at this hotel if the total bill was 501 dollars?
nights
Lugar geométrico infinito formado por un conjunto de puntos que conservan la misma dirección
Answer:
l lugar geométrico de los puntos que equidistan a otros dos puntos fijos {\displaystyle A}A y {\displaystyle B}B es una recta o eje de simetría de dichos dos puntos. Si los dos puntos son los dos extremos de un segmento {\displaystyle {\overline {AB}}}\overline {AB}, dicha recta, o lugar geométrico, es llamada mediatriz y es la recta que interseca perpendicularmente a {\displaystyle {\overline {AB}}}\overline {AB} en su punto medio.
La bisectriz cumple la propiedad de que todos sus puntos equidistan a los lados de dicho ángulo, convirtiéndose la bisectriz en un caso particular del lugar geométrico que sigue a continuación.
El caso de equidistancia a dos rectas paralelas, obtenemos que la paralela media es el lugar geométrico de los puntos que las equidistan. Se observa que, bajo el punto de vista de que las rectas paralelas se cortan en el infinito -se elimina, pues, la noción de paralelismo-, pasa a ser un sinónimo de la bisectriz, donde el ángulo ha tomado valor nulo.
Secciones cónicas
Las secciones cónicas pueden ser descritas mediante sus lugares de geométria:
La circunferencia es el lugar geométrico de los puntos cuya distancia a un punto determinado, el centro, es un valor dado (el radio).
La elipse es el lugar geométrico de los puntos tales que la suma de su distancia a dos puntos fijos, los focos, es una constante equivalente a la longitud del eje mayor de la elipse.
La parábola es el lugar geométrico de los puntos cuya distancia a un foco equivale a su distancia a una recta llamada directriz.
La hipérbola es el lugar geométrico de los puntos tales que el valor absoluto de la diferencia entre sus distancias a dos puntos fijos, los focos, es igual a una constante (positiva), que equivale a la distancia entre los vértices.
Una recta es un lugar geométrico infinito formado por un conjunto de puntos que conservan la misma dirección.
Descripción de un enunciado de un lugar geométrico dado
En este ejercicio debemos concluir que tipo de expresión se deriva del enunciado del lugar geométrico. Recuérdese que un lugar geométrico es un conjunto de puntos que satisfacen una característica dada.
Matemáticamente hablando, el lugar geométrico puede ser definido a partir de las definiciones de longitudes de segmento de recta:
[tex]AC = AB + BC[/tex] (1)
Puesto que [tex]AB[/tex] y [tex]BC[/tex] tienen la misma dirección, entonces es posible aplicar las siguientes equivalencias:
[tex]BC = k \cdot AB[/tex], [tex]k\in \mathbb{R}[/tex] (2)
[tex]AC = r\cdot AB, \,r\in\mathbb{R}[/tex] (3)
Al aplicarse (2) y (3) en (1) y simplificar la expresión, tenemos lo siguiente:
[tex]r = 1 + k[/tex] (4)
Por geometría analítica tenemos que el lugar geométrico debe ser una recta, puesto que [tex]r[/tex] y [tex]k[/tex] representan un conjunto infinito de elementos. [tex]\blacksquare[/tex]
Para aprender más sobre lugares geométricos, invitamos cordialmente a ver esta pregunta verificada: https://brainly.com/question/26000018
Simplify [(a⁴b⁵)² ÷ (a⁹b⁷)⁰] ÷ ab²
Answer:
a^5b^8
Step-by-step explanation:
What correctly rewrites 30+45 as the product of the greatest common factor and the sum of two numbers?
Group of answer choices
15(2+45)
15(2+3)
None of These
2(15+3)
3(10+15)
Answer:
15(2+3)
Step-by-step explanation:
30+ 45= 75
(2+3)= 5
15*5= 75
Hope this helps
Good day!
how to find the area of a square whose perimeter is 7 meters
Answer:
A≈3.06
P Perimeter
7
Using the formulas
A=a2
P=4a
Solving forA
A=1
16P2=1
16·72=3.0625
Answer:
Area=49
Step-by-step explanation:
Area of a square= L× L
perimeter=7
Area of a square=7×7
=49square
therefore, the area if a square whose perimeter is 7 is equal to 49square in meters
help with math plsssssssss
HELP PLEASE..........
Answer:
what is X? is x is negative they are all wrong, if X is 0 or positive whole number they are all correct
Step-by-step explanation:
A venue can sell 750 750 tickets per concert. For an upcoming concert, they have been selling 25 25 tickets a day. Write a linear function that represents the number of tickets remaining at a given time.
Answer:
y=25x+750
Step-by-step explanation:
You have 750 fifty per day which will be your b (y=mx+b) and you will make 25 tickets per person which will be your m.
Answer:
y=750-25
Step-by-step explanation:
a movie poster is 10 in long and 22 inch tall what is th are of this poster
Answer:
220
Step-by-step explanation:
Area = length · width
Area = 22 · 10
Area = 220
Note:
Please mark as Brainliest! <3
simplify the ratio 3 hours 1 hour 20 minutes
Answer:
9 : 4
Step-by-step explanation:
3 hours = 3*60 = 180 minutes
1 hour 20 min = 1*60 + 20 = 80 minutes
[tex] \frac{180}{80} = \frac{18}{8} = \frac{9}{4} = 9 : 4[/tex]
We are required to simplify the ratio 3 hours 1 hour 20 minutes
The simplest ratio of 3 hours : 1 hour : 20 minutes is 9 : 3 : 1
Convert hour to minutes
1 hour = 60 minutes
3 hours = 60 minutes × 3
= 180 minutes
1 hour = 60 minutes
So,
3 hours : 1 hour : 20 minutes
= 180 minutes : 60 minutes : 20 minutes
= 18 : 6 : 2
= 9 : 3 : 1
Therefore, the simplest ratio of 3 hours : 1 hour : 20 minutes is 9 : 3 : 1
Read more:
https://brainly.com/question/24425126
Josh attempted 56 free throws during the basketball season.
He made 5/7 of them. How many free throws did he make?
A. 57 + 56 = 5657
B. 57 × 56 = 40
C. 56 ÷ 57 = 40
D. 56 – 57 = 5527
Answer:
B
Step-by-step explanation:
5/7 * 56 which is 8*5 which is 40.
When having a fraction of a whole number just multiply it to the whole number.
Answer:
: He made 32 free throws.
Step-by-step explanation:
It can also be solved by transforming the percentage in a fraction such as 57% = 57/100 and then multiplying it by the total attempts.
Pls help extra points and mark brainlist
Answer:
h=2 or B
Step-by-step explanation:
if you plug in all the solutions it works
8+h/10
8+2/10
=10/10
=1
so its B
A pension fund owns 11,000 shares in a stock mutual fund and a bond mutual fund. Currently the stock fund sells for $12 per share and the bond sells fund sells for $15 per share. How many shares of each does the pension fund own if the value of the securities is $150,000?
Fund owns:
Stock fund shares
Bond fund shares
9514 1404 393
Answer:
5000 shares of stock fund6000 shares of bond fundStep-by-step explanation:
Let b represent the number of shares of the bond fund owned. Then the value of the pension fund is ...
15b +12(11000-b) = 150000
3b = 18000 . . . . . . . . . . subtract 130,000
b = 6000 . . . . . . . . . shares of bond fund
11000 -b = 5000 . . . shares of stock fund
How many decimal places are in the product?
1.684×10.2
Answer:
4
Step-by-step explanation:
in all there is 4 places behind the decimal
Answer:
4
Step-by-step explanation:
17.1768
On the real number line, what is the midpoint of —3
and 11?
F. -5
G. 0
H. 4
J. 7
K. 14
Answer:
4
Step-by-step explanation:
Hope this helps :)
On the real number line, the midpoint of —3 and 11 will be 4.
What does a midpoint mean?Midpoint, as the word suggests, means the point which lies in the middle of something.
Midpoint of a line segment means a point which lies in the mid of the given line segment.
The coordinates of midpoint of the line segment AB are;
Suppose we've two endpoints of a line segment as:
A(p,q), and B(m,n)
Then let the midpoint be M(x,y) on that line segment. Then, its coordinates are:
[tex]x = \dfrac{p+m}{2}[/tex]
and
[tex]y = \dfrac{q+n}{2}[/tex]
Hence, On the real number line, the midpoint of —3 and 11 will be 4.
Learn more about midpoint here;
https://brainly.com/question/5127660
#SPJ2
please help!! I don't know anything about the unit I'm on and this along with other questions soon would help me so much
Answer:
x + 21 + 33 = 180
x + 54 = 180
x = 126
PLZ BRIANLiest me!!!
Step-by-step explanation:
HELP PLS
ACCOUNTING
If the owner of a company withdrew $200 during a period, the closing entry
for the Owner, Withdrawals account would show a ___.
O A. $200 credit to Income Summary
O B. $200 debit to Owner, Withdrawals
C. $200 credit to Owner, Capital
O D. $200 debit to Owner, Capital
Answer:
O D. $200 debit to Owner, Capital
Step-by-step explanation:
The above is the right way which would appear on the statement of account of the company owner. This is because, the $200 was actually a money taken by the owner hence it being a debit from the account (given to the owner). For the fact that it is cash amount, it would be show capital.
Answer:
D)
Step-by-step explanation:
a pe xxx
find the equation of a parabola whose vertex is at (-1,7), whos axis of symmetry is x=-1, and who's y-intercept is (0,10). write your answer in vertex form
Answer:
42
Step-by-step explanation:
I say this because the answer to life the universe and everything is 42 so yeah?!
What is the answer please help
Determine the domain and range of the graphed function.
A) domain: (-∞, ∞) range: (-∞, 10)
B) domain: (-∞, ∞) range: (-∞, 10]
C) domain: (-∞, 10) range: (-∞, ∞)
D) domain: (-∞, 10] range: (-∞, ∞)
Answer:
B
Step-by-step explanation:
We assume the function goes infinitely both "left" and "right" so the domain is (-inf, inf).
We can also see that it has a maximum in (0, 10), so it takes all the values from -inf to 10 exactly. If it never reached 10, it'd be (-inf, 10) but it does, so it's (-inf, 10].
what is the solution of this system of Linear equations? y=3×-2 and y-2=×
Answer:
(2, 4)
Step-by-step explanation:
Given the system of equations
y=3×-2.... 1
y-2=× ... 2
Substitute 2 into 1
y = 3(y-2) - 2
y = 3y - 6 - 2
y - 3y =-6-2
-2y = -8
y = -8/-2
y = 4
Recall that
x = y - 2
x = 4-2
x = 2
Hence the solution (x, y) is (2,4)
Which function is most likely graphed on the coordinate plane below?
y у
Answer:b
Step-by-step explanation:
i took it
Which of the following represents 3x - 5y + 10 = 0 written in slope-intercept form?
y = -x + 2
y = x - 2
y = x + 2
Answer:
Rewritten in slope-intercept form,
y = mx + b
The answer is
y = 3/5x + 2.
Answer:
y = 3/5x + 2
Step-by-step explanation:
Evaluate the expression 6+(-3)
Answer:
3
Step-by-step explanation:
A Addition sign and a negative sign is equal to a negative
So 6 - 3 is 3
I hope this helped :)
Find the slope of the line that passes through the pair of points.
(2, -3). (-5, 1)
undefined
Help ksjsjsjs
Help me plz thanks my guy or gurl
Answer:
its j daddy
Step-by-step explanation:
In the rectangle
P
Q
R
S
, the side
P
Q
is of length
2
and the side
Q
R
is of length
4
.
Points
T
and
U
lie inside the rectangle so that
P
Q
T
and
R
S
U
are equilateral triangles.
What is the area of the quadrilateral
Q
R
U
T
?
Which form of a quadratic would be the easiest to identify the y-intercept?
A. Vertex Form
B. Standard Form
C. Intercept Form
ads