Answer:
6 × 1f = 6f
6 × 5 = 30
= 6f + 30
So the answer is A - 6f + 30
pleasee help me answer this Madelyn states that the value of the expression-2/3 x2 + x + 7 3/4 is sometimes negative. Which of the following values of x support Madelyn's claim
Answer:
x+-3/4
Step-by-step explanation:
-2/3(2)+x+7/3/4
=-4/3+(4/3+7/12)
x+-3/4
Sabiendo que lo ancho de un terreno rectangular mide 24.7 m y que su perímetro es de 131.8 m. ¿Cuánto mide cada uno de sus lados largos?
Answer:
El perímetro de un terreno rectangular mide 48 m . Calcula sus dimensiones si el largo es el doble que el ancho.
Respuesta:
De largo mide 16m
De ancho mide 8m
Explicación paso a paso:
Perímetro = número de lados multiplicado por longitud del lado.
Formula: P = 2(a + b) o P = 2b + 2h
Donde: P = Rectángulo del perímetro
a y b = Longitudes de lados
Asignamos las variables:
Largo = 2x
Ancho = x
Utilizamos la formula:
2(x) + 2(2x) = 48
2x + 4x = 48
6x = 48
x = 48/6
x = 8m (ancho)
2x
2(8)
16m (largo)
Step-by-step explanation:
Please provide an explanation
If [tex]$\mathrm{x} \neq 3$[/tex], the expression [tex]$\frac{2 x^3+7 x^2-3 x-25}{x+3}$[/tex] is equivalent to [tex]$2 x^2+x-6-\frac{7}{x+3}$$[/tex].
What is meant by expression?A mathematical expression is a phrase that includes at least two numbers or variables, at least one arithmetic operation, and the expression itself. Any one of the following mathematical operations can be used.
A mathematical sentence with variables, numbers, or both is known as an expression. Operation can also be a part of an expression, although an equal sign is never present in an operation. A mathematical expression that demonstrates the equality of two expressions is called an equation. There is a sign of equality in equations.
An expression in mathematics is made up of a mixture of variables, numbers, and functions (such as addition, subtraction, multiplication or division etc.) In some ways, phrases and expressions are comparable.
Let the equation be
[tex]$\frac{2 x^3+7 x^2-3 x-25}{x+3}[/tex]
simplifying the equation, we get
[tex]$& \text { Divide } \frac{2 x^3+7 x^2-3 x-25}{x+3}=2 x^2+\frac{x^2-3 x-25}{x+3} \\[/tex]
[tex]$& =2 x^2+\frac{x^2-3 x-25}{x+3}[/tex]
[tex]$& \text { Divide } \frac{x^2-3 x-25}{x+3}=x+\frac{-6 x-25}{x+3} \\[/tex]
[tex]$ =2 x^2+x+\frac{-6 x-25}{x+3}[/tex]
Divide [tex]$\frac{-6 x-25}{x+3}=-6+\frac{-7}{x+3}$[/tex]
[tex]$=2 x^2+x-6+\frac{-7}{x+3}$$[/tex]
Simplifying the equation, we get
[tex]$=2 x^2+x-6-\frac{7}{x+3}$$[/tex]
Therefore, the correct answer is option 1) [tex]$2 x^2+x-6-\frac{7}{x+3}$$[/tex].
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Brian buys bananas from the grocery store each week. Last week he bought 5 pounds of bananas and paid $2.95. If he buys 8 pounds of bananas this week, how much will he pay?
You and 3 friends go out for lunch and the total bill was $36. You decide to split the bill evenly. You also decide to leave a 12% tip on your part. How much are you responsible for paying?
When you and your 3 friends decide to split the bill of $36 evenly and you leaving a 12% tip on your part, you pay a total of $13.32.
Therefore the answer is 13.32 dollars.
When you and your 3 friends decide to split the bill evenly, each person is responsible for paying 1/4 of the total bill. The total bill is $36, so each person is responsible for paying
$36 / 4 = $9
You also decided to leave a 12% tip on your part, so you need to calculate 12% of $36. To do this, you can multiply $9 by 0.12
$36 × 0.12 = $4.32
So, you are responsible for paying $9 + $4.32 = $13.32
So you are responsible for paying $13.32 in total.
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v 2 ‒ 3 where v = 5 =?????????????????????
Answer:
7
Step-by-step explanation:
Since V is equal to 5, I'm guessing the equation is 2V - 3? You substitute V with 5, in the equation and solve! 5 ⋅ 2 - 3, so 5 times 2 is 10, and then you subtract 3 by 10. Then you get the answer 7!
1/3p multiplied by 9q is what?
Answer:
3pq
Step-by-step explanation:
A certain pickup truck gets 14 mpg in the city and 21 mpg on the highway. If the driver drives 220 mi on 12 gal of gas, determine the number of city miles and
highway miles that the truck was driven?
Calculate the perimeter of the parallelogram. Round to the nearest tenth, if necessary. Enter the perimeter, in units, using numbers only (decimal point is ok, if needed).
Answer:
28 units
Step-by-step explanation:
Firstly, we can see that the vertical sides are 9 units each.
To get the diagonal sides, we can turn the ends into right triangles, which we can then use with the Pythagorean Theorum.
To make the top side into a triangle, we would draw a horizontal line connecting points (-1, 3) and (3, 3). This creates a right angle which is essential when using the Pythagorean Theorum.
A^2 + B^2 = C^2
We can plug in values for the Pythagorean Theorum because we can see that going across horizontally from point (-1, 3) to (3, 3), there are 4 units in between the two points. This will be our A value. We will do the same but vertically from points (3, 6) to (3, 3). The 3 units between the two points will be our B value. Now, we can plug in our values into the Pythagorean Theorum to find side C, the hypotenuse.
4^2 + 3^2 = C^2
16 + 9 = C^2
25 = C^2
√25 = C
C = 5
Now that we know the diagonal value of the side, we also know the same diagonal value of the bottom side. When you add all four sides together,
9 + 5 + 9 + 5 = 28
you get 28, which is the perimeter of the parallelogram.
What is an irrational number? ????
Answer:
a number that cannot be written as a/b
it's a non-repeating, non-terminating decimal
typically, irrational numbers are square roots of numbers that are not perfect squares; also, π is considered irrational
Step-by-step explanation:
Deon made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was $21.60. If the beads cost 2.20 for each necklace, how much did each pendant cost?
Answer:by uvyvyvyi
Step-by-step explanation:
Two similar cones have volumes of 3970cm3 and 3100 cm3 respectively.
The height of the larger cone is 25cm.
Calculate the height of the smaller cone.
Answer:
The height of the smaller cone is 19.52 cm
Step-by-step explanation:
Given that,
The volume of cone 1, V₁ = 3970 cm³
The volume of cone 2, V₂ = 3100 cm³
The height of the larger cone, h₁ = 25 cm
We need to find the height of the smaller cone. Let it is h₂. For similar cones,
[tex]\dfrac{V_1}{V_2}=\dfrac{h_1}{h_2}[/tex]
Put values,
[tex]h_2=\dfrac{h_1V_2}{V_1}\\\\h_2=\dfrac{25\times 3100}{3970}\\h_2=19.52\ cm[/tex]
So, the height of the smaller cone is 19.52 cm.
Find the measure of angle 3.
A. 15 degrees
B. 45 degrees
C. 30 degrees
D. 60 degrees
Answer:
B. 45
Step-by-step explanation:
If im wrong please let me know
Have a nice day :)
5( x-3 ) + 2x =41
What is x?
Answer:
8
Step-by-step explanation:
5 ( x - 3 ) + 2x = 41
5x - 15 + 2x = 41
5x + 2x - 15 = 41
7x - 15 = 41
7x = 41 + 15
7x = 56
x = 56 / 7
x = 8
Answer:
X=8
Step-by-step explanation:
Combine like terms: 5x + 2x = 7x
-15 + 7x = 41
Solving
-15 + 7x = 41
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '15' to each side of the equation.
-15 + 15 + 7x = 41 + 15
Combine like terms: -15 + 15 = 0
0 + 7x = 41 + 15
7x = 41 + 15
Combine like terms: 41 + 15 = 56
7x = 56
Divide each side by '7'.
x = 8
what is m for y = 7x - 17
On solving the provided question, we can say that - the linear equation y = 7x - 17 at x= 0; y = -17 and m = -17
What is a linear equation?The algebraic equation y=mx+b is known as a linear equation. B is the y-intercept, and m is the slope. The previous sentence, where y and x are variables, is commonly referred to as a "linear equation in two variables." Bivariate linear equations are those that contain two variables in them. The linear equations 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, x + y = 2, and 3x - y + z = 3 are examples. When an equation has the formula y=mx+b, with m denoting the slope and b the y-intercept, it is referred to as being linear.
y = 7x - 17
at x= 0
y = -17
and m = -17
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(Find the expected value of the winnings from a game that has the following payout probability)
I have all the answers with work shown and how to solve on the second image
Hope this help you guys :)
Answer:
The expected value is $2.1
Step-by-step explanation:
If we have an event with some given outcomes:
x₁, x₂, ..., xₙ
Such that each one of these outcomes has the correspondent probability:
p₁, p₂, ..., pₙ
The expected value is:
EV = p₁*x₁ + ... + pₙ*xₙ
In this case we have a table with the events (the payouts) and the probability for each one, so we have:
x₁ = $0
p₁ = 0.5
x₂ = $2
p₂ = 0.2
x₃ = $4
p₃ = 0.15
x₄ = $6
p₄ = 0.1
x₅ = $10
p₅ = 0.05
Now we can just replace these in the expected value equation, so we get:
EV = $0*0.5 + $2*0.2 + $4*0.15 + $6*0.1 + $10*0.05 = $2.1
If the solution to a linear system of equations is x=6 and y= 2 and you graphed the two equations, where would the two lines intersect? How do you know?
Answer:
(6,2)
Step-by-step explanation:
Combine them
Answer:
Step-by-step explanation:
A system of equations is a set of two or more equations that represent a relationship between two or more variables. A solution of this system is an ordered pair that satisfies each equation in the system. Finding the set of all solutions is called solving the system of equations. Solving a system of equations by graphing is exactly what the name implies – graph both equations, and their point(s) of intersection is the solution. A system of linear equations only have one solution because each equation is a straight line, they will only have one point of intersection (unless, of course, they are the same line).
THE TWO LINES WOULD INTERSECT (6, 2). BECAUSE THE SOLUTION IS THE INTERSECTION..
( x - 4 ) + ( 2x - 7 )
- find the Sum or Difference :)
[tex]( x - 4 ) + ( 2x - 7 )[/tex]
Combine Like Terms:
[tex](x+2x)+(-4+-7)[/tex]
[tex](3x)+(-11)[/tex]
[tex]\fbox{3x - 11}[/tex]
Answer:3x-11
Step-by-step explanation:
(x-4)+( 2x-7)
x-4+2x-7
3x-11
Write an equivalent expression in expanded form.
-3(- 4x + 2)
Answer:
12x-6
Step-by-step explanation:
The number of students who picked football and rugby are in the ratio of 4:3 The number of students who picked rugby and tennis are in the ratio of 12:25 150 students picked tennis.Work out how many students picked football.
This question makes no sense, If you mean we are trying to find Rugby, then yes I get that but, Football was only mention once, and once only. I think it's possibly 72 students chose Rugby. The First equation is basically useless unless you are given an Idea of the fact that we need to use the first equation. If that is the case then 12 people chose football. If I didn't help I apologize for that but I was given a question I couldn't make sense of.
John has $4,069 in an account. The interest rate is 12% compounded annually. To the nearest cent, how much interest will he earn in 1 year? Use the formula B=p(1+r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years. $
After solving the equation: the nearest cent, the interest earned is $467.
What is interest?Interest is a mathematical concept used to describe the cost or gain associated with the use of money over a period of time. It is usually expressed as a percentage rate of the principal (the amount borrowed or invested). Interest can be earned or paid, depending on the situation.
Using the formula B=p(1+r)t, John's final balance after 1 year is B = 4069(1+0.12)1 = $4,536.28.
The interest earned in 1 year is the difference between the final balance and the starting amount, which is $4,536.28 - $4,069 = $467.28. To the nearest cent, the interest earned is $467.
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Han earns 33.00 for babysitting 4 hours at this rate how much will he earn if the babysitter for 7 hours explain your reasoning
Han will make $57.75 for 7 hours of babysitting.
What are equations?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign "=".
Given is that Han earns $33 for babysitting 4 hours.
Han made $33 for 4 hours of work.
Then, he will make $(33/4) in 1 hour of work.
Then, he will make $(33/4 x 7) in 7 hours of work.
$(33/4 x 7)
$(33/4 x 7)
$(231/4)
$57.75
Therefore, Han will make $57.75 for 7 hours of babysitting.
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Find two numbers that sum to 27 and their difference is 5
Where would I start when rewriting polynomials in standard form? I have my notes but they’re still unclear to me.
Answer:
Step-by-step explanation:
standard form = combine like therms and degrees drop from left to right
In this there aren’t like therms, so:
6x^3+x^2-9x+5
therms = each therm is seprated by a plus or a minus
in this case there are 4 therms
degree = look at the monomial with the highest degree
in this case is 3
Name = in this case there are four therms so it is a quadrinomial
Standard form denotes to arranging according to degrees or exponents
Standard form
6x³+x²-9x+5Number of terms=4
Degree=3
Name Quadrinomial or Biquadratic
Michael's pumpkin farm sold 75 pumpkins on October 24 that day they made $600. What did Michael charge for each pumpkin?
Answer:
$8.
Step-by-step explanation:
right!!
What is seed calculator?
Answer: The Seed Calculator app is used to calculate the amount of seed required in order to produce a desired crop yield.
Step-by-step explanation:
fill in the table using this function rule. y=6x-36
is y = 1/3x + 4 proportional
need help with this screenshot
The quadratic equation in vertex form is y = -(x - h)² + k
The parabola passed through points (-1, -3), (0, 0), (1, 1), (2, 0) and so on
How to write the equation of parabola in vertex formFor a vertical parabola, the vertex form of the equation is written as
y = a(x - h)² + k
where:
a = 1/4p
h and k are points of the vertex = v(h, k)
The vertex
v (h, k) = (1, 1)
h = 1
k = 1
y = a(x - 1)² + 1
using point (0, 0)
0 = a(0 - 1)² + 1
-1 = a
hence a = -1
the equation is written as y = -(x - h)² + k
The points the graph passed is read from the graph to be
(-1, -3), (0, 0), (1, 1), (2, 0) and so on
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Which statement regarding the region of rejection for a 5%
significance level is TRUE?
A z-score higher than 2 is part of the region of rejection
The region of rejection lies between the z-scores -2 and
2.
If a z-score falls within the region of rejection, it indicates
that the alternative hypothesis may be valid.
The region of rejection indicates that the null hypothesis
is true.
The statement regarding the region of rejection for a 5% significance level would be true is the region of rejection lies between the z-scores -2 and 2.Option B is correct.
What is region of rejection?A collection of values for the test statistic for which the null hypothesis is rejected constitutes a critical zone, sometimes referred to as the region of rejection. For example, if the observed test statistic is in the critical range, the null hypothesis is rejected and the alternative hypothesis is accepted.
Further the rejection zone is the area in which we have sufficient data to reject the null hypothesis if our test statistic falls within it. The rejection area, for the right-tailed test, for instance, is any value bigger than the critical value, or c 1 .
Therefore, the interval that causes the null hypothesis H 0 to be rejected in a hypothesis test is known as the region of rejection and is measured in the sampling distribution of the statistic under examination.
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