Answer:
103.5714286
Step-by-step explanation:
calculator
substitution 2x - 3y + = -45, x + 6y = 45
Answer:
y = 9
x = -9
Step-by-step explanation:
2x - 3y + = -45
x + 6y = 45, x = 45 - 6y
substitute for x:
2(45 - 6y) - 3y = -45
90 - 12y - 3y = -45
combine like terms:
90 - 15y = -45
15y = 135
divide both sides of the equation by 15:
y = 9
x = 45 - 6(9) = -9
Dos hermanos reciclaron la misma cantidad de kilos de papel que de envases de carton. Se pagan 183 por cada kilo de papel y 356 por cada kilo de carton y con lo que juntaron lograron ganar 3763.
Respuesta:
183x + 356y = 3763
Explicación paso a paso:
Dejar :
Número de kilos de papel = x; número de kilos de cartón = y
Kilo de papel = 183; kilo de cartón = 356
Cantidad total ganada = 3763
(Costo por kilo de papel * número de kilos de papel) + (costo de kilos de cartón * número de kilos de cartón)
(183 * x) + (356 * y) = 3763
183x + 356y = 3763
-5(y + 5) > 45
Answers y > -14
y > 4
Answer: your correct but the answer should be y<-14
Step-by-step explanation: i dont get the y>4 but if you solve -5(y + 5) > 45 you should get y<-14
hope this helped :)
What is the sum of the measurements of all the angles in a polygon with k sides?
Answer:
(k - 2) * 180
Step-by-step explanation:
Which functions are symmetric about the y-axis? Check all of the boxes that apply. On a coordinate plane, a cosine curve has a maximum of 1 and minimum of negative 1. On a coordinate plane, a parabola opens to the right with a vertex at (0, 0) On a coordinate plane, a parabola opens up.
Answer:
1st box
3rd choice
Step-by-step explanation:
Those are the only choices that are symmetric about the y-axis
The 2nd choice isn't because it doesn't reflect over the y-axis
A graph is a way to represent a lot of data in a visual format. The functions that are symmetric about the y-axis are graphs 1 and graph 3.
What is a graph?A graph is a way to represent a lot of data in such a visual format that it is easy for the user to understand the complete information in one go. Usually, the line of the graph is a function that follows the graph.
The y-axis is the vertical axis of the graph, therefore, the functions that are symmetric about the y-axis are the graph of function 1 and the graph of function 3.
Hence, the functions that are symmetric about the y-axis are graphs 1 and graph 3.
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by (2x^3 - x^2 - 24x + 12) / (2x - 1)
A x^2-1
B x^2-12
C 2x-1
D x^2-1/2x-12
Answer:
B
Step-by-step explanation:
(2x^3 - x^2 - 24x + 12) / (2x - 1) = x^2-12
(use long polynomial division)
Answer:
[tex]\boxed {\sf B.\:x^2-12}[/tex]
Step-by-step explanation:
[tex]\sf \cfrac{2x^3-x^2-24x+12}{2x-1}[/tex]
Factor the expressions that aren't already factored:
[tex]\sf \cfrac{(2x-1)(x^2-12)}{2x-1}[/tex]
Cancel out 2x-1 in both sides numerator and denominator:
[tex]\sf x^2-12[/tex]
___________________________
Find the area of the composite shape.
1,323 cm squared
1,209 cm squared
955.5 cm squared
1,029 cm squared
Answer:
4. A = 1029 cm²Steps:
A = (35×21)+(21+2×3.5)×21/2
A = 735 + (21+7)×21/2
A = 735 + 28×21/2
A = 735 + 588/2
A = 735 + 294
A = 1029 cm²What is the surface area of this triangular pyramid?
Answer:
48.25
Step-by-step explanation:
This is because when finding the area of a triangle it is known as base times height then divide by 2 and since the base is a triangle, multiply 4.3 times 5 which is 21.5 and divide by 2 which is 10.75 and for the top since its also a triangle multply 5x5 which is 25 divide by 2 whicih is 12.5, but there is 3 of them so multiply by 3 and you get 37.5, then add 37.5+10.75 to get 48.25 cm^2
image down below plz and thx
anyone knows the answer
The radius of each semicircle in the composite figure is x units. The width of the rectangular part of the figure is equal to the radius.
Which expression represents the distance around the composite figure
A. 6x+2πx
B. 6x +4πx
C. 10x +2πx
D. 10x +4πx
Answer:
10x + 2pix
Step-by-step explanation:
What is the solution to the equation below?
50+4= 2(C-5)
I need help I don’t know how to solve this problem!
Answer:
c=28
Step-by-step explanation:
50-4=2(c-5)
apply distributive property
50-4=2c-10
now simplify
46=2c-10
56=2c
28=c
Camille buys a cake for $24.99 . She also buys 12 brownies. Each brownie costs the same amount. She spends $39.99 on the cake and the brownies. Camille finds the cost of each brownie by calculating (39.99 - 24.99) *12 . Tanya finds the cost of each brownie by solving the equation $39.99 + 12b = 24.99 , where b is the cost of each brownie. Which approach uses the sequence of operations necessary to find the cost of each brownie: Camille’s, Tanya’s, both, or neither?
Answer:
hi
didn't get it
Step-by-step explanation:
.....
....
Answer:
sorry
Step-by-step explanation:
please make it correct
Answer:
"The drone is at the surface of the water at both 4 and 7 seconds into the observation."
Have a good day! :>
Answer:
B
Step-by-step explanation:
0 = t^2 - 11t + 28
0 = (t-4) x (t-7)
so it is at the surface at seconds 4, 7
Find the slope of the line through the points (-2, 1) and (0,4).
Answer:
-3/2 is the answer
y2-y1
x2-x1
4-1=3
0-2=-2
Round your answers to one decimal place, if necessary.
A baseball team scored the following number of runs over a 10-game period:
4,9,75, 7, 1, 10,1,9,1,5.
Find the mean, median, and range.
The mean is
The median is
The range is.
Please help or I’m gonna fail is don’t understand it please..
Help me please help me please help me please
Answer:
your answer is
1 - o
16- 2
20 - 5
24 - 4
Step-by-step explanation:
LOL i also have a acer laptop but its paired with windows 10
answer this plssssssss no wrong answers
Answer:
b
Step-by-step explanation:
just trying to help but don't know if right
The base and height of a triangle with base
7 in. and height 3 in. are both doubled.
Incomplete question.
A rectangular painting has an area of 420 square inches. If the length is (2x + 5) inches and the width is (x) inches, then what is the value of x? Use completing-the-square and round the value of x to the nearest tenth. (Hint: You may find 2 solutions, but you only need the positive solution because the length and width must be positive values)
Answer:
12.1 inches
Step-by-step explanation:
Since the length of the rectangular painting is (2x + 5) inches and its width is x inches, it area A = (2x + 5)x square inches = 2x² + 5x.
Also, A = 420 square inches. So,
2x² + 5x = 420
2x² + 5x - 420 = 0
diving through by 2, we have
2x²/2 + 5x/2 - 420/2 = 0/2
x² + 5x/2 - 210 = 0
adding halt the coefficient of x squared to both sides, that is (5/2 ÷ 2)² = (5/4)² to both sides, we have
x² + 5x/2 + (5/4)² - 210 = 0 + (5/4)²
Simplifying, we have
(x + 5/2)² - 210 = 25/16
adding 210 to both sides, we have
(x + 5/2)² - 210 + 210 = 25/16 + 210
(x + 5/2)² = 25/16 + 210
(x + 5/2)² = (25 + 3360)/16
(x + 5/2)² = 3385/16
taking square root of both sides, we have
√(x + 5/2)² = ±√(3385/16)
(x + 5/2) = ±√3385/4
(x + 5/2) = ±58.18075/4
(x + 5/2) = ±14.55
x = -5/2 ±14.55
x = -2.5 ±14.55
x = -2.5 - 14.55 or -2.5 + 14.55
x = - 17.05 or 12.05
Since x = width and it cannot be negative, we choose the positive answer. So, x = 12.05 inches ≅ 12.1 inches (to the nearest tenth)
What value of x make the equation 24-(3x - 9)-6= -2(4x - 10+ 5x + 7 true?
Answer:
x = 0
Step-by-step explanation:
24 - (3x - 9) - 6 = -2(4x - 10) + 5x + 7
solve the brackets by using the distribute property:
1(3x - 9) = 3x - 9
-2(2x - 10) = -8x + 20
rewrite the equation:
24 - 3x - 9 - 6 = -8x + 20 + 5x + 7
combine like therms:
27 - 3x = -3x + 27
subtract 27 from both sides:
27 - 3x - 27 = -3x + 27 - 27
- 3x = -3x
add x to both sides of the equation:
-3x + 3x = -3x + 3x
x = x or 0 = 0
to check, substitute 0 for x
24 - (3(0) - 9) - 6 = -2(4(0) - 10) + 5(0) + 7
anything times 0 is 0
24 - (0 - 9) - 6 = -2(0 - 10) + 0 + 7
solve:
24 + 9 - 6 = 0 + 20 + 0 + 7
27 = 27
which expression eqaul 9 when x = 4 and y = 1/3
Answer:
it is 9
Step-by-step explanation:
you add the 4 and times 3
Which measure is of an angle that is coterminal with a 135° angle?
O 45°
O 90°
O 495°
O 585°
Answer:
Step-by-step explanation:
495. I just took it 100%
The measure is of an angle that is coterminal with a 135° angle is,
⇒ 495°
What is mean by Angle?An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.
We have to given that;
The angle is,
⇒ 135°
Now, To find the coterminal angle add 360 to the given angle as;
⇒ 360 + 135
⇒ 495°
Thus, We get;
Coterminal angle = 495 degrees
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Help ..................
Pythagorean Theorm Unit? I got you!
It would be C, about 63.07
2.
Write the slope-intercept form of the equation for the line.
A. y = [tex]\frac{1}{2}[/tex]x + [tex]\frac{3}{10}[/tex]
B. y = [tex]-\frac{10}{3}[/tex]x + [tex]\frac{1}{2}[/tex]
C. y = [tex]\frac{3}{10}[/tex]x + [tex]\frac{1}{2}[/tex]
D. y = [tex]-\frac{3}{10}[/tex]x + [tex]\frac{1}{2}[/tex]
Answer:
i think the answer is letter b or letter d
Step-by-step explanation:
ALGEBRA 1:
FIND THE PRODUCT OF THE FOLLOWING:
(2x+6)(2x-6)
please somebody help me, if you’re correct i’ll give you an extra 50 points for helping. please do not use my question for points as i am failing and truly need help i’m so stressed lol.
DUE RIGHT NOW!!!!! PLEASE HELP!!!!!
need answers ASAP if you can help! Please and Thankyou
Answer:
X = 78, Z = 29, and Y = 102
Step-by-step explanation:
X = 78. 43 + 59 = 102. There has to be 180 degrees in a triangle. So subtract 180 by 102.
Z = 29. Think of the whole triangle for this one. 43 + 49 + 59 = 151. 180 - 151 = 29.
Y = 102. Plug in the value of Z. 49 + 29 = 78. 180 - 78 = 102.
Hope that helps!
Help me please, what are the new points??
Answer:
Step-by-step explanation:
Addiction is a journey that leaves you feeling stranded and alone. Come home to a substance-free lifestyle at New Points™. New Points™ is one of the world's first sober-living communities for men and women created specifically for the recovery process.
14. Given that log 2 = 0.3010 and log 3 = 0.4771 , how can we find log 6 ?
A. log6 = log2 x log3 = 0.3010 x 0.4771
B. log6 = log2 + log3 = 0.3010 + 0.4771
C. log6 = log2 – log3 = 0.3010 – 0.4771
D. log6 = log2 = log3 = 0.3010 = 0.4771
Answer:
B. log6 = log2 + log3 = 0.3010 + 0.4771
Step-by-step explanation:
log 2 = 0.3010
log 3 = 0.4771
log 6 = ?
6 = 3 * 2
log 6 = log (3 * 2)
According to log rules;
log (a * b) = log(a) + log (b)
This means;
log 6 = log 3 + log 2
Inserting the values they represent;
log 6 = log 3 + log 2 = 0.4771 + 0.3010
Correct option:
B. log6 = log2 + log3 = 0.3010 + 0.4771