I will mark you the Brainliest person who gets this right
Answer:
B (x^2 +4x -2) + (x^2 -2x +4)= 2x^2 +2x +2
Step-by-step explanation:
The blue are positive and the red are negative
The top line is x^2 +4x -2
The second line is x^2 -2x +4
Adding together
x^2 +4x -2 + x^2 -2x +4= 2x^2 +2x +2
Find the x-intercept and y-intercept from the following linear equation: 9x - 3y = -81
Answer:
The x-intercept is (-9,0). The y-intercept is (0,27).
Step-by-step explanation:
9x - 3y = -81
-9x -9x Subtract 9x from both sides
-3y = -9x - 81 Divide both sides by -3
y = 3x + 27
I graphed the equation below.
Step-by-step explanation:
9x-0=-81
divide all through with 9x to get
x=-2
0-3y=-81
divide all through with 3y to get
y=27
Find the length of LM:
K
16
L
M
Answer:
8
Step-by-step explanation:
LM = KI/2
LM = 16/2
LM = 8
Melissa wants to cover a footrest with cotton fabric.The footrest is 15 inches by 11 inches by 13 inches.She has 1 square yard of fabric.Can she completely cover the footrest.
The ordered pairs in the table below represent a linear function.
Answer:
the table that has the same additive rate of change. so you subtract the last number to the one before it. to get the rate of change but you need to the same with every number in the y values.
Step-by-step explanation:
for example if the table has 1,2,3,4 point with the y values with 2, 4, 6,8. so you will get 8-6=2 then you repeat: 6-4=2, 4-2=2. when they are the same meaning its a linear function.
Perform the operation indicated, then place the answer in the proper location on the grid. Write your answer in descending powers of a. (a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)
The result of the given subtraction problem of expression will be -3a³ + 5a² - 3a + 7.
What is an expression?A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
As per the given expression,
(a³ - 2a + 5) - (4a³ - 5a² + a - 2)
⇒ a³ - 4a³ - 2a - a + 5a² + 5 + 2
⇒ -3a³ + 5a² - 3a + 7
Hence "The result of the given subtraction problem of expression will be -3a³ + 5a² - 3a + 7".
To learn more about expression,
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Find the missing value.-7/13 = m/104
[tex]answer = - 56 \\ solution \\ \frac{ - 7}{13} = \frac{m}{104} \\ or \: 13 \times m = 104 \times ( - 7) \\ or \: 13 \: m = - 728 \\ or \: m = \frac{ - 728}{13} \\ m = - 56 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment[/tex]
Answer:
[tex] - 56[/tex]
Step-by-step explanation:
[tex] \frac{ - 7}{13} = \frac{m}{104} [/tex]
use cross multiplication
[tex]104 \times - 7 = 13m \\ - 728 = 13m \\ \frac{ - 728}{13} = \frac{13m}{13} \\ m = - 56[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Please help!
Find the product AB, if possible. Explain if it's not possible.
Answer:
C
Step-by-step explanation:
To multiply matrices, the number of columns in the first matrix must equal the number of rows in the second matrix.
Matrix A has 2 columns.
Matrix B has 2 rows.
So the matrices can be multiplied.
Matrix A has 2 rows. Matrix B has 1 column. So the result will also have 2 rows and 1 column.
The first row is (5)(2) + (2)(3) = 16.
The second row is (3)(2) + (-1)(3) = 3.
Anyone know this ?? :( need help
Answer:
It is the value of the coin when it was originally purchased. t=0 y=3
Step-by-step explanation:
The y intercept is the value when t=0
It is the value of the coin when it was originally purchased. y=3
I need 4 answers done, I need you to tell me how to do it, and show your work for the answers!
Answer:
13) [tex]x=-3,y=4[/tex]
14) [tex]x=7, y=12[/tex]
15) [tex]x=-1,y=3[/tex]
16)[tex]x=-3,y=4[/tex]
Step-by-step explanation:
13)
[tex]y=9x+31\\6x+4y=-2[/tex]
Sub in equation 1 into equation 2.
[tex]6x+4(9x+31)=-2[/tex]
Expand the bracket.
[tex]6x+36x+124=-2[/tex]
Rearrange.
[tex]42x=-126\\x=-3[/tex]
Solve for y.
[tex]y=9(-3)+31\\y=-27+31\\y=4[/tex]
14) (Following exactly the same steps)
[tex]y=-2x+26\\-5x+2y=-11[/tex]
[tex]-5x+2(-2x+26)=-11\\-5x-4x+52=-11\\-9x=-63\\x=7[/tex]
[tex]-5(7)+2y=-11\\2y=24\\y=12[/tex]
15) (Following exactly the same steps again.)
[tex]y=2x+5\\8x+3y=1[/tex]
[tex]8x+3(2x+5)=1\\8x+6x+15=1\\14x=-14\\x=-1\\[/tex]
[tex]8(-1)+3y=1\\-8+3y=1\\3y=9\\y=3[/tex]
16) (Still no variation on how the questions are asked, exact same method)
[tex]3x+2y=-2\\y=9x+31[/tex]
[tex]3x+2(9x+31)=-1\\3x+18x+62=-1\\21x=-63\\x=-3[/tex]
[tex]y=9(-3)+31\\y=-27+31\\y=4[/tex]
Amir is starting a stamp collection. After 3 weeks he has collected 35 different stamps, and after 9 weeks he has collected 105 different stamps. What is the constant of proportionality in this direct variation?
Answer:
3/35
Step-by-step explanation:
Here, we want to know the constant of proportionality in this direct variation scenario
Since it is a direct variation, the form we are having would be;
x = ky
where x and y directly vary with each other and k is the constant of proportionality
Now, for the first relation
3 = 35k
for the second
9 = 105k
Thus k would be
3/35 which is the same as 9/105
Kindly note that 9/105 can be reduced to 3/35
So linking the number of weeks to the number of stamps collected, the constant of proportionality is 3/35
The answer is A.) y =35/3x
Please help me answer this solve for x
Answer:
[tex]x = 10[/tex]
Step-by-step explanation:
[tex]3x + 35 = 5x + 5 \\ 35 - 5 = 5x - 3x \\ 20 = 2x \\ \frac{20}{2} = \frac{2x}{2} \\ x = 10[/tex]
These are corresponding angles
hope this helps
brainliest appreciated
good luck! have a nice day!
Un fabricante de carteras de la marca "C&L" vende cada cartera a su distribuidor argentino al precio de (230 - q) soles si la cantidad q es menor que 210. Si el costo unitario de cada cartera es S / 20 y el monto de los costos fijos a S / 2,000. A. Determine las ecuaciones de ingreso y costo total para el fabricante al producir y vender carteras q. Si. Determine la ecuación de utilidad del fabricante al vender q unidades de carteras. C. ¿Cuántas carteras se distribuirán, si la ganancia obtenida es de 1800 soles, sabiendo que es mayor que 50? D concentración
Answer:
A. 101 × q / 2000 S
B. Ingresos totales de q unidades = 230 · q - q²
Costo total para producir q unidades = 101 × q / 2000 S
C. 222 carteras
Step-by-step explanation:
A. Ingresos totales = q × (230 - q) = 230 · q - q²
El costo unitario = S / 20
El costo fijo = S / 2000
Costo total para producir q unidades = q × (S / 20 + S / 2000) = 101 × q / 2000 S
B. Las ganancias totales = Ingresos totales- Costo total
Las ganancias totales = 230 · q - q² - 101 · q / 2000
Las ganancias totales = 229.9495 · q - q²
C, cuando las ganancias obtenidas = 1800 soles, tenemos;
1800 = 229.9495 · q - q²
q² -229.9495 + 1800 = 0
(q - 8.114) × (q - 221.84) = 0
Por lo tanto, q = 8.114 o q = 221.84
Por lo tanto, sabemos que q> 50, por lo tanto, el valor correcto de q = 221.84 o 222 carteras.
Factor the trinomial completely.
a^4 -2a^2 - 35
Answer:
(a^2+5)(a^2-7)
Step-by-step explanation:
a^4 -2a^2 - 35=a^4-2a^2+1-36=(a^2-1)^2-6^2=(a^2-1+6)(a^2-1-6)=(a^2+5)(a^2-7)How many numbers are in the list 147, 144, 141, ........,42, 39,?
Answer:
37
Step-by-step explanation:
Solve the inequality. |3x + 6| x > 2 C. –2 < x < 2 D. –6 < x < 2
Answer:
-6 < x < 2
Step-by-step explanation:
hope this helps :)
I will give you 10B points plus mark someone again for the Brainliest if you get this right.
Answer:
C
Step-by-step explanation:
Option c gives the actual representation of the question
What is the measure of < A, In degrees?
Answer:
D.120
Step-by-step explanation:
The sides AB and AC are equal and thus the angles they form with BC should be equal . Since now angle ABC is 30 then application of sum of angles in a triangle as a constant(180 degrees) we can subtract 60 degrees from it which gives 120
Erin deposited $500 in a savings account earning 8% interest annually and compounded monthly to the nearest cent how much interest will she earn in 10 years
Answer:
$400
Step-by-step explanation:
$500 multiplied by 8% = $40
If you multiply $40 by 10 years that equals $400.
p and q are complex numbers such that |p|=7√2 and |p+q|=12√3 .
On what interval must |q| fall on?
A [7√6/24,[infinity])
B [12√3−7√2,[infinity])
C [12√3+7√2,[infinity])
D [4√6/7,[infinity])
Answer:
Option B is correct
Step-by-step explanation:
Given: [tex]\left | p \right |=7\sqrt{2}\,,\,\left | p+q \right |=12\sqrt{3}[/tex]
To find: interval on which [tex]\left | q \right |[/tex] must fall
Solution:
[tex]\left | p \right |=7\sqrt{2}\\-7\sqrt{2}\leq p\leq 7\sqrt{2}\,\,(i)[/tex]
[tex]\left | p+q \right |=12\sqrt{3}\\-12\sqrt{3}\leq p+q\leq 12\sqrt{3}\,\,(ii)[/tex]
Subtract (ii) from (i)
[tex]-12\sqrt{3}+7\sqrt{2}\leq p+q-p\leq 12\sqrt{3}-7\sqrt{2}\\-12\sqrt{3}+7\sqrt{2}\leq q\leq 12\sqrt{3}-7\sqrt{2}\\\left | q \right |=12\sqrt{3}-7\sqrt{2}[/tex]
So, [tex]\left | q \right |[/tex] must fall in interval [tex][12\sqrt{3}-7\sqrt{2},\infty)[/tex]
Therefore, option B is correct.
HELP!!!!!!!!!!!!!…………………
Answer:
A
Step-by-step explanation:
[tex]\sqrt[4]{\dfrac{81}{16}a^8b^{12}c^{16}}= \\\\\sqrt[4]{\dfrac{3^4}{2^4}(a^2)^4(b^3)^4(c^4)^4} = \\\\\dfrac{3}{2}a^2b^3c^4[/tex]
Therefore, the correct answer is choice A. Hope this helps!
in right triangle ABC, angle C is a right angle and sin A= sin B. What is measure of angle A
Answer: 45 degrees
Step-by-step explanation:
Plato
Please give me the answer
Answer:
the median increases by 0
Step-by-step explanation:
Which of these is LEAST likely to be a destination of future manned space exploration during your lifetime? A. Mars B. asteroids C. nearby stars D. orbiting hotels
Answer: C
Step-by-step explanation:
Nearby stars are lightyears and lightyears away. We are landing on Mars next year, the international space station already exists, and a japansese research center already mined asteroids. That textbook must be quite old
Three shops, Sainzbiri, Morrizan and Ko-op sell the same brand of washing powder but in different size boxes.
Calculate the price of 1 kg of washing powder for each shop.
Give your answers in pence.
Write which shop is better value in the comment box.
Answer:
Ko-op is better
Step-by-step explanation:
1
£2.58/3= 86 p
2
£4.25/5= 85 p
3
£6.72/8= 84 p
Last one Ko-op is better
tom has £55,000 in 2016 he plans on putting £8,200 in a bank each year how much will be in the bank by 2031
Answer:
123000
Step-by-step explanation: 8,200 x 15 =123000
HELP a repeating decimal + A fraction...
Answer:
rational
Step-by-step explanation:
Answer:
it's Rational.......
can someone help with all of of it ??
Answer:
y = -2x + 1
Step-by-step explanation:
First we're going to find the gradient (the number in the green box with the question mark).
We use the formula [tex]\frac{y2-y1}{x2-x1}[/tex] to calculate the gradient.
Let's make (-1, 3) be our (x1, y1), and (2, -3) be our (x2, y2).
Substitute the points into our formula:
gradient = [tex]\frac{(-3)-3}{2- (-1)}[/tex]
gradient = [tex]\frac{-6}{3}[/tex]
gradient = -2
Next, we're going to find the y-intercept (the number in the grey box)
Now that we have the gradient, our equation looks like this:
y = -2x + c
We use the letter c to represent the y-intercept of a linear graph.
Substitute one of the points given into the x and y in the equation. Let's use (-1, 3).
3 = -2(-1) + c
3 = 2 + c
c = 1
So our equation is y = -2x + 1
find the area if the figure
Answer:
Might be wrong but try 47.5ft^2
Step-by-step explanation:
(3*2)/2=3
(3*3)/2=4.5
3+4.5+(4*10)=47.5
Which of the following characteristics best describes the given function of ƒ(x) = 3x − 6 ?
Answer:
a linear function with slope 3 and y intercept -6
Step-by-step explanation:
f(x) = 3x - 6 is definitely a linear function with slope 3 and y intercept -6.
Next time please be sure to share the answer choices. Thanks.
Given function of [tex]f(x)= 3x-6[/tex] represents a linear function representing straight line with no maximum and no minimum. Slope of the given line [tex]= 3[/tex] and y - intercept [tex]= -6.[/tex]
What is linear function?" Linear function is defined as the relation between variables with highest exponent equals to one".
According to the question,
Given
Function[tex]f(x)= 3x-6[/tex]
[tex]f(x)= 3x-6[/tex] is function in one variable x with highest exponent 1.
Therefore, it is a linear function.
Represents the straight line.
x increases y also increases.
No maximum and minimum point.
Compare it with general equation of line [tex]y = mx + c[/tex]
Slope of the line [tex]= 3[/tex]
Y- intercept [tex]= -6[/tex]
Hence, function of [tex]f(x) = 3x-6[/tex] represents a linear function representing straight line with no maximum and no minimum. Slope of the given line [tex]= 3[/tex] and y - intercept [tex]= -6.[/tex]
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