Step-by-step explanation:
(3x-2y) (4x+3y) (8x-5y)(3x(4x+3y)-2y(4x+3y))(8x-5y)(12x²+9xy-8xy-6y²)(8x-5y)(12x²+xy-6y²)(8x-5y)12x²(8x-5y)+xy(8x-5y)-6y²(8x-5y)96x³-60x²y+8x²y-5xy²-48xy²+30y³96x³-52x²y-53xy²+30y³question 20 please make (x) the subject of the formula
Answer:
The answer is
[tex] \frac{ {x}^{2} - n}{m} = { (\frac{ {a}^{2} }{b}) }^{a} \\ {x}^{2} - n = m{( \frac{ {a}^{2} }{b} })^{a} \\ {x}^{2} = m {( \frac{ {a}^{2} }{b} )}^{a} + n \\ x = \sqrt{m {( \frac{ {a}^{2} }{b}) }^{4} - n} [/tex]
Step-by-step explanation:
I am a math teacher. If you need any explanation you in mathematics you can communicate with me on Whats on this number 01557831028
Brainliest to anyone who can answer and show working out :)
Answer:
d = 9
Step-by-step explanation:
solving for d
let's get ride of the fraction first so multiple the whole thing by 3
3= 1d - 6
add 6 to both sides
9 = d
easy peasy.
At school basketball games you can buy 3 sodas and 2 pretzels for $4.80 or you
can buy 1 soda and 1 pretzel for $2.00.
Write system equation that represents the situation:
Solve the system using your graph calculator.
A) soda: $0.20 pretzels: $1.80
B) soda: $0.80 pretzels: $1.20
C) soda: $2.88 pretzels: $1.92
D) soda: $0.50 pretzels: $0.50
Answer:
B) soda: $0.80 pretzels: $1.20
Step-by-step explanation:
system of equations:
3s+2p=4.80
1s+1p=2.00
solve:
-2(1s+1p=2.00) = -2s-2p=-4.00
3s+2p=4.80
-2s-2p=-4.00
1s=0.80
3(0.80)+2p=4.80
2.40+2p=4.80
2p=2.40
p=1.20
PLEASE ANSWER ASAP !!!!
Answer:
probaly 2
Step-by-step explanation:
you have to figure out the slope.
y1 - y2/x1-x2
[tex]7 {x}^{3} + 4x - 5 + 8 {x}^{5} [/tex]
What is the degree of the polynomial?
A. 0
B. 1
C. 3
D. 5
Answer:
D
Step-by-step explanation:
The degree of a polynomial is determined by the largest exponent of a term within the polynomial.
Given
7x³ + 4x - 5 + 8[tex]x^{5}[/tex]
The term with the largest exponent is 8[tex]x^{5}[/tex] with exponent 5
Thus the polynomial is of degree 5 → D
Help please, please
Answer:
x = 17
Step-by-step explanation:
Assuming you require to find x
4x - 3 and 115 are same- side interior angles and supplementary, sum to 180°
4x - 3 + 115 = 180
4x + 112 = 180 ( subtract 112 from both sides )
4x = 68 ( divide both sides by 4 )
x = 17
what is the simplest radical form with a rational denominator of 4.898?
Answer:
c
Step-by-step explanation:
Linear system
x-y=9
X+2y=27
need help very fast pls
Answer:
Step-by-step explanation:
(0, -5) (5, 0)
(0 + 5)/(5 - 0)
5/5= 1
y + 5 = x - 0
y = x - 5
help and get brainliest!!!
Answer:
a
Step-by-step explanation:
Suppose point A is located at (1, 3) on a coordinate plane. If AB is 10 and the x-coordinate of point B is 9, explain how to use the Distance Formula to find the y-coordinate of point B.
Answer:
y =9
Step-by-step explanation:
you know the distance is 10 and some of the x,y points. so start filling what you know into the distance formula
10= √((9-1)^2 + (y-3)^2 )
square both sides to get ride of the square root
100 = 64 + (y-3)^2
36 = (y-3)^2
6 = y-3
y = 9
double check by using 9 for Y and you'll see it works.
Luke, Kira and Ali each served 2/3 of their own cake. Each cake was the same size, but luke served 4 slices, Kira served 6 slices and Ali served 8 slices. How is this possible?
Answer:
The whole slices of the cakes of Luke, Kira and Ali are 6, 9 and 12 respectively. So it is possible.
Step-by-step explanation:
It's possible because they cut cakes into different number of slices.
You know that Luke, Kira and Ali each served [tex]\frac{2}{3}[/tex] of their own cake and Luke served 4 slices, Kira served 6 slices and Ali served 8 slices.
Being x the whole slices of cake, and if Luke served [tex]\frac{2}{3}[/tex] of his cake, which are 4 slices, the whole slices of cake of Luke is:
[tex]\frac{2}{3}*x=4 slices[/tex]
Solving:
x= 4 ÷[tex]\frac{2}{3}[/tex]
x= 6
Then, whole slices of Luke's cake is 6.
Performing the same approach for Kira you get:
[tex]\frac{2}{3}*x=6 slices[/tex]
x= 6 ÷[tex]\frac{2}{3}[/tex]
x= 9
Then, whole slices of Kira's cake is 9.
Finally, performing the same approach for Ali you get:
[tex]\frac{2}{3}*x=8 slices[/tex]
x= 8 ÷[tex]\frac{2}{3}[/tex]
x= 12
Then, whole slices of Ali's cake is 12.
The whole slices of the cakes of Luke, Kira and Ali are 6, 9 and 12 respectively. So it is possible.
Joe is holding a solid material shaped in the form of a simple polyhedron that has four vertices and four faces. How many edges does the shape have?
A. 4
B. 6
C. 8
D. 10
Solve for all values of x by factoring.
x^2-20x+72=-3x
Answer:
x = 9, 8
Step-by-step explanation:
1) To find all values of x by factoring, move all the terms to one side, setting them to zero. So, add both sides by -3x to move the term:
[tex]x^2-20x + 72 = -3x\\x^2 -17x+72 = 0[/tex]
2) Now, factor the expression. The product of -8 and -9 equals 72, and adding the two numbers together equals -17. So, the factored expression must be (x-9) (x-8):
[tex]x^2-17x + 72 = 0 \\(x-9)(x-8)= 0[/tex]
3) Look at the expressions in the parentheses. Whatever values of x that makes each expression equal 0 will be the answer. Thus, x must equal 9 and 8.
Steven bought a gallon of milk from the store. There are approximately 0.94 liter
in a quart. Approximately how many liters are in a gallon?*
A. 9 L
B. 0.94 L
C. 3.76 L
D. 9.4 L
Using the function g(x) = -2x + 5, what would the input need to be for an output of -5? a.5 b.0 c.15 d.-5
Answer:
A
Step-by-step explanation:
We are given the function g(x) = -2x +5
If we need an output of -5, then:
-5 = -2x + 5
-10 = -2x
x = 5
A
Answer:
a. 5
Step-by-step explanation:
We can solve this by simply guessing and checking; plugging in each answer until we get -5.
a) -2(5) + 5
-10 + 5
-5
We can also set the function equal to -5 and solve for x.
-2x + 5 = -5
-2x = -10
x = 5
4i+4-2i+10
whats the answer to this equation 0_0
Answer:
2i + 14
Step-by-step explanation:
4i + 4 - 2i + 10
combine like terms
2i + 14
Answer:
14+2i
Step-by-step explanation:
That's what the equation is when u simplify it.
An expression is shown.
(3.x2 + 2x – 5) - (5x2 - 4x + 1)
O a
8x2 + 6x 6
Ob
- 2x2 + 62 - 6
ос
- 2x2 - 2.3 – 4
od
8x2
2x – 4
Answer:
8x
2
+6x−6
this is the correct answer
the answer is B
(3x²+2x-5)-(5x²-4x+1)
= 3x²+2x-5-5x²+4x-1
= 3x²-5x²+2x+4x-5-1
= -2x²+6x-6
Can y’all please answer this?
Answer:
Look at the description:
Step-by-step explanation:
The mistake is that they did not need to divide the radius by two since the radius is already half of the diameter. The area of a circle is pi*r^2. The second mistake they made was that they assigned pi the value of 3 which is wrong. After calculating, the area of the circle is 53^2pi = 8824.73mm^2
Taelor and Kael earn $50 for each lawn they mow. This month, they mowed 4 lawns. They
also earn $35 for each driveways they power wash. This month, they earned a total of
$480.00. How many driveways did they power wash?
Traders have invested $ 100,000 in the Peace Garden Center to boost the capital Mogadishu and make a profit. looga farm income to make people come to the door to take the free tickets for different values $ 0.8 adults and 0.6 children. As many as 150 tickets were sold on Friday for $ 102. produce more child tickets than adult tickets?
Dilations map rays to rays true or false
aaaaaaaaaaaaaAnswer:
a
Step-by-step explanation:
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A tree 16 feet tall casts a shadow which forms an angle of 40° with the ground. How long is the shadow to the nearest hundredth of a foot?
Answer:
x = 19.06 feet
Step-by-step explanation:
Given that,
The length of a tree, h = 16 feet
It casts a shadow which forms an angle of 40° with the ground.
We need to find the length of the shadow. We can find it using trigonometry such that x be the length of the shadow. So,
[tex]\tan\theta=\dfrac{h}{x}\\\\x=\dfrac{h}{\tan\theta}\\\\x=\dfrac{16}{\tan(40)}\\\\x=19.06\ \text{feet}[/tex]
So, the length of the shadow is 19.06 feet.
The Marked Price of an article is 25% above the Selling Price and Cost price is 40% below Selling Price. Find the percentage of discount and profit.
Answer:
65% profit
-25% discount
Step-by-step explanation:
cost price = 40+25 = 65% higher than marked price
discount = -25%
(x - 1)/(n - 1) + (2n ^ 2 * (1 - x))/(n ^ 4 - 1) = (2x - 1)/(1 - n ^ 4) - (1 - x)/(1 + n)
alguien me puede ayudar con este problema es una ecuacion de 1er grado
Answer:
que mentiras eso es como de 12avo grado
Question 7: e math instruction, can u guys help me?
Simplify a5 divided by a3
Answer:
a^2
Step-by-step explanation:
a^5 / a^3
We know that x^y / x^z = x^ ( y-x)
a^ ( 5-3) = a^ 2
Answer:
a squared OR a2 OR a^2
Step-by-step explanation:
So we need to remember that numbers and exponents are different. When we divide a5 by a3, we subtract 3 from 5. That gives us 2. So the exponent is 2 and the answer is a2. I hope this helped! :)
find the slope of the line (17,-12) and (17,8)
S(t) = -16t^2+96t+256 the quadratic function models the balls height above the ground, s(t), in feet, t seconds after it was thrown when a person standing close to the edge on top of a 248-foot building throws a baseball ball vertically upward. When will the ball reach its maximum height, and what is the maximum height of the ball?
Answer:
The ball reaches maximum height in 3 seconds.
The maximum height of the ball is of 400 feet.
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:
[tex]f(x) = ax^{2} + bx + c[/tex]
It's vertex is the point [tex](x_{v}, f(x_{v})[/tex]
In which
[tex]x_{v} = -\frac{b}{2a}[/tex]
If a<0, the vertex is a maximum point, that is, the maximum value happens at [tex]x_{v}[/tex], and it's value is [tex]f(x_{v})[/tex]
In this question:
The height is modeled by:
[tex]s(t) = -16t^2 + 96t + 256[/tex]
So, the coefficients are:
[tex]a = -16, b = 96, c = 256[/tex]
Instant of time the ball reaches maximum height:
[tex]t_{v} = -\frac{96}{2(-16)} = -\frac{96}{-32} = 3[/tex]
The ball reaches maximum height in 3 seconds.
What is the maximum height of the ball?
This is s(3).
[tex]s(3) = -16t^2 + 96t + 256 = -16*3^2 + 96*3 + 256 = 400[/tex]
The maximum height of the ball is of 400 feet.
Write a numerical expression for the verbal expression. the sum of two an four and six times eight
The mathematical expression for the verbal expression is the sum of two and four and six times eight will be (2+4+6)8.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given verbal expression is the sum of two and four and six times eight will be written as:-
Add 2,4, and 6 apply parenthesis, and then multiply by 8. The expression will be:-
E = ( 2 + 4 + 6 ) 8
Therefore, the mathematical expression for the verbal expression is the sum of two and four, and six times eight will be (2+4+6)8.
To know more about an expression follow
https://brainly.com/question/2164351
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PLZZ HELP ME PLZ!!!!!!!!!!!!!!
Step-by-step explanation:
one class 1375 pages
4 classes = 4* 1375 = 5500 pages