Answer:
B
Step-by-step explanation:
pls mark me as brainest
choose the sentence that complete the fact family like 2×9=18 18÷9=2 9×2=18 is it a 36÷2=18 b 18÷6=3 c 36÷18=2 d 18÷2=9 is it abc or d
Help with graphing rational functions
Factor the greatest common factor (GCF) from each polynomial. - 12y + 48x
Answer:
-12(y-4x)
Step-by-step explanation:
-12y+48x=-12(y-4x)
suppose there is a normally distributed population with a mean of 250 and a standard deviation of 50. if xbar is the average of a sample of 36, find P(246
Using the normal distribution and the central limit theorem, it is found that:
[tex]P(246 \leq \bar{x} \leq 260) = 0.5693[/tex]
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].In this problem:
The mean is of [tex]\mu = 250[/tex].The standard deviation is of [tex]\sigma = 50[/tex].A sample of 36 is taken, hence [tex]n = 36, s = \frac{50}{\sqrt{36}} = 8.3333[/tex].The probability of a sample mean between 246 and 260 is the p-value of Z when X = 260 subtracted by the p-value of Z when X = 246, hence:
X = 260:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{260 - 250}{8.3333}[/tex]
[tex]Z = 1.2[/tex]
[tex]Z = 1.2[/tex] has a p-value of 0.8849.
X = 246:
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{246 - 250}{8.3333}[/tex]
[tex]Z = -0.48[/tex]
[tex]Z = -0.48[/tex] has a p-value of 0.3156.
0.8849 - 0.3156 = 0.5693, hence:
[tex]P(246 \leq \bar{x} \leq 260) = 0.5693[/tex]
To learn more about the normal distribution and the central limit theorem, you can check https://brainly.com/question/24663213
NO LINKS!!! Part 7: Please help me with this problem
Apply law of cosines
[tex]\\ \rm\longmapsto c^2=a^2+b^2-2abcos\gamma[/tex]
[tex]\\ \rm\longmapsto c^2=150^2+35^2-2(150)(35)cos110[/tex]
[tex]\\ \rm\longmapsto c^2=22500+1225-10500(-0.34)[/tex]
[tex]\\ \rm\longmapsto c^2=23725+3570[/tex]
[tex]\\ \rm\longmapsto c^2=27295[/tex]
[tex]\\ \rm\longmapsto c=165.2yd[/tex]
Answer:
165 yd (nearest yard)
Step-by-step explanation:
To calculate the distance from the ball to the center of the green, we need to use the cosine rule:
[tex]c^2=a^2+b^2-2ab \cos (C)[/tex]
where:
C is the anglea and b are the sides adjacent to the angle Cc is the side opposite the angle CTherefore, for this triangle:
a = 35 ydb = 150 ydC = 110°Substituting these values into the cosine rule formula:
[tex]\implies c^2=35^2+150^2-2(35)(150) \cos (110\textdegree)[/tex]
[tex]\implies c^2=23725-10500\cos(110\textdegree)[/tex]
[tex]\implies c=\sqrt{23725-10500 \cos(110\textdegree)}[/tex]
[tex]\implies c=165.2761674...[/tex]
[tex]\implies c = 165 \textsf{ yd (nearest yard)}[/tex]
Need help please with this math question
Answer:
1/20=5%
Step-by-step explanation:
There are 145 students at a small school and 41 of them are freshman. What fraction of the students are freshman
Answer: 41/145
Step-by-step explanation:
Freshmen/Total students = 41/145
Una persona que se dirige desde su casa hasta el colmado hay una longitud de 10 metros , luego la persona regresa a su casa que desplazamiento y distancia usted recorre?
Veremos que la distancia total recorrida es de 20 metros, y el desplazamiento es de 0 metros.
¿Cuanto es el desplazamiento?
Definimos el desplazamiento como la diferencia entre la posición final y la inicial. En este caso sabemos que la persona comienza en su casa, luego va al colmado, y luego regresa a su casa.
Entonces la posicion inicial y la final son la misma, por lo que concluimos que el desplazamiento es 0.
¿Cuanta distancia se recorre?La distancia total recorrida será igual a dos veces la distancia entre la casa y el colmado.
Esta distancia es 10 metros, entonces la distancia recorrida es:
distancia = 2*10m = 20m
Sí quieres saber mas sobre desplazamientos, puedes leer:
https://brainly.com/question/4931057
Find all points on the x-axis that are 16 units from the point (4,-8)
Step-by-step explanation:
all points on the x axis have a y value of 0.
so, we need to find all points (x, 0) with a distance of 16 to (4, -8).
the distance to a point is the Hypotenuse of the right-angled triangle with the coordinate differences as legs.
and so Pythagoras applies :
c² = a² + b²
with c being the Hypotenuse (side opposite of the 90° angle).
so, in our case we have
16² = (4-x)² + (-8 - 0)²
256 = 16 - 8x + x² + 64 = x² - 8x + 80
x² - 8x - 176 = 0
if we have no other idea of factorization the general solution of such a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
a = 1
b = -8
c = -176
x = (8 ± sqrt((-8)² - 4×1×-176))/(2×1) =
= (8 ± sqrt(64 + 704))/2 = (8 ± sqrt(768))/2 =
= (8 ± sqrt(256×3))/2 = (8 ± 16×sqrt(3))/2 =
= 4 ± 8×sqrt(3)
x1 = 4 + 8×sqrt(3) = 17.85640646...
x2 = 4 - 8×sqrt(3) = -9.856406461...
so, the points on the x axis that are 16 units apart from (4, -8) are
(x1, 0) and (x2, 0)
I am not sure in what format you need the answer.
please fill in for x1 and x2 from above what you need.
What quadratic function bests fits this data?
(refer to the picture)
A) y= -9.38x^2 + 74.80x + 186.1
B) y= -9.38x^2 -74.80x+186.1
C) y= 9.38x^2 - 74.80x + 186.1
D) y= 9.38x^2 + 74.8x + 186.1
A grocery store clerk put only packages of Takis and packages of Flamas on a shelf. The ratio of the number of packages of Flamas to the total number of packages on the shelf was 9 to 16.
Which number could be the number of packages of Takis the clerk put on the shelf?
Answer:
5 packages of Takis
Step-by-step explanation:
The total number packages that were placed on the shelf were 16 packages. The total number of packages of Flamas that were placed on the shelf were 9 packages. So to identify the number of packages of Takis the clerk put on the shelf, we simply do
16-9=5
Janet is 33.3% finished with
her math homework. If she
has 24 questions, how many
does she have left to finish?
If the scale factor of sides is 3, then the scale factor of area is ___ and the scale factor of
volume is __
Answer:
9
27
Step-by-step explanation:
the scale factor of area is 3² = 9
the scale factor of volume is 3³ = 27
Answer:
1/2 then 4Ts
Step-by-step explanationexplanation: good luck
Brainliest if correct
Answer:
44% is shaded
Step-by-step explanation:
Having carefully counted, I find 44 of the squares shaded. I'm sure of it.
Answer:
Yes, the other is correct. The answer is 44%
Step-by-step explanation:
In a certain class, 25% of students wear
glasses. If 6 students wear glasses, how many
students are in the class?
dog weighs 20% more than it did three months ago. It
weighs 36 pounds now.
How much did the dog weigh three months
Answer:
weight dog trhee monts ago is 28.i pounds
Step-by-step explanation:
Percentage:
20% × 36 =
20/100 × 36720/1007.2 poundsWeight dog trhee months ago:
36 pounds - 7.2 poundz28.8 poundsDescribe the slope of the line
Find the slope.
Please help!!!!!!!!!!!!
find the sum (6a)/(a^(2)-6a+9)+(9)/(a^(2)-2a-3)
Answer:
Step-by-step explanation:
[tex]\frac{6a}{a^2-6a+9}}+\frac{9}{a^2-2a-3)}\\\\=\frac{6a}{(a-3)^2}+\frac{9}{(a-3)(a+1)}\\\\\\[/tex]
[tex]=\frac{6a(a+1)+9(a-3)}{(a-3)^2(a+1)}\\\\=\frac{6a^2+6a+9a-27}{(a-3)^2(a+1)}\\[/tex]
[tex]=\frac{6a^2+15a-27}{(a-3)^2(a+1)}\\\\=\frac{3(2a^2+5a-9)}{(a-3)^2(a+1)}[/tex]
Prism A is a dilation of Prism B. The height of Prism A is 612 ft, and the volume of Prism A is 8734 ft³. The height of Prism B is 314 ft.
What is the volume of Prism B?
Enter your answer as a mixed number in simplest form by filling in the boxes.
Answer:
volume of prism B=4481.16993463 ft^3
Step-by-step explanation:
Prism B's height was multiplied by the scale factor to get prism A's height.
So x is the scale factor and 314x=612
x=1.949
volume of prism A is volume of prism B multiplied by x
8734=1.949(volume of prism B)
Volume of prism B=4481.16993463 ft^3
Answer:
10 31/32
Step-by-step explanation:
I took the k12 test
Show Intr
Maggie can do a job in 15 hours less than Ryan can. If they work together they can get the job done in 10 hours. How long would it take cach to do the job alone?
Maggie can do the job in
hours
Ryan can do the job in
hours
Answer:
Maggie = 15 hours
Ryan = 30 hours
Step-by-step explanation:
let x - time it takes Ryan to do the job alone.
x-15 - time it takes Maggie to do the job alone
[tex] \frac{10}{x} + \frac{10}{x - 15} = 1 \\ \\ \frac{10(x - 5) + 10x}{x(x - 15)} = 1[/tex]
[tex]10x - 150 + 10x = x {}^{2} - 15x \\ \\ 20x - 150 = x {}^{2} - 15x \\ \\ x {}^{2} - 15x - 20x + 150 = 0 \\ \\ x {}^{2} - 35x + 150 = 0 \\ \\ (x - 30)(x - 5) = 0 \\ \\ x = 30 \: and \: x - 15 = 15[/tex]
x = 5 --> not valid because x-15 will be NEGATIVE
Therfore,
Maggie can do the job in 15 hours.
Ryan can do the job in 30 hours.
What is (f-g)(x)?
F(x)=3x5+6x2-5
G(x)=3x5-5x4+3x2-15
What is (f•g)(x)?
F(x)=x3-4x+2
G(x)=x2-6
The resulting function is (f-g)(x) = 5 · x⁴ + 3 · x² + 10.
The resulting function is (f • g) (x) = 3 · (3 · x⁵ - 5 · x⁴ + 3 · x² - 15)⁵ + 6 · (3 · x⁵ - 5 · x⁴ + 3 · x² -15)² - 5.
How to apply subtraction between two functionsLet be [tex]f(x)[/tex] and [tex]g(x)[/tex] polynomial functions, the subtraction between between the two functions implies the subtraction of similar terms. If we know that [tex]f(x) = 3\cdot x^{5}+6\cdot x^{2}-5[/tex] and [tex]g(x) = 3\cdot x^{5}-5\cdot x^{4}+3\cdot x^{2}-15[/tex], then the subtraction between the two functions:
[tex](f-g)(x) = (3\cdot x^{5}+6\cdot x^{2}-5)-(3\cdot x^{5}-5\cdot x^{4}+3\cdot x^{2}-15)[/tex]
[tex](f-g)(x) = 5\cdot x^{4}+3\cdot x^{2}+10[/tex]
The resulting function is (f-g)(x) = 5 · x⁴ + 3 · x² + 10. [tex]\blacksquare[/tex]
How to apply composition between two functionsThe composition between two functions, the independent variable of the former function by the latter function. If we know that [tex]f(x) = 3\cdot x^{5}+6\cdot x^{2}-5[/tex] and [tex]g(x) = 3\cdot x^{5}-5\cdot x^{4}+3\cdot x^{2}-15[/tex], then the composition between the two functions:
[tex]f\,\circ\,g\,(x) = 3\cdot (3\cdot x^{5}-5\cdot x^{4}+3\cdot x^{2}-15)^{5}+6\cdot (3\cdot x^{5}-5\cdot x^{4}+3\cdot x^{2}-15)^{2}-5[/tex]
(f • g) (x) = 3 · (3 · x⁵ - 5 · x⁴ + 3 · x² - 15)⁵ + 6 · (3 · x⁵ - 5 · x⁴ + 3 · x² -15)² - 5. [tex]\blacksquare[/tex]
To learn more on functions, we kindly invite to check this verified question: https://brainly.com/question/5245372
help I need the answer now :(
Answer:
E, F, A, ED, BC, EF, ABC, EDF
Step-by-step explanation:
The angle and side markings show which segments and angles are congruent.
We can make a table of corresponding pairs based on the number of marks:
marks, angle, side
A and E, DF and BCB and D, ED and ABC and F, EF and AC__
This can help us fill in the question numbers:
∠E is congruent to ∠A∠F is congruent to ∠C∠A is congruent to ∠EED is congruent to ABBC is congruent to DFEF is congruent to AC8. ΔABC ≅ ΔEDF2.
Show your work
24*
V
2x
Angle =
Answer:
90-24=76°
Step-by-step explanation:
____________________
The local cinema sells student tickets for $7.25. A school paid a total of $203 for a class of students to attend the cinema. Which equation can be used to determine the number of students, s that are in this class?
What is the volume of the right rectangular prism below?
Answer:
C
Step-by-step explanation:
2 in. x 1 1/4 in. x 1 1/2 in. = 2/1 in. x 5/4 in. x 3/2 in. = 30/8 cubic inches = 3 6/8 = 3 3/4 cubic inches
What fractions represents the shaded boxes?
Answer:
7/10 is the fraction that Represents the shaded boxes.
I think it will help you.
Answer:
7/10
Step-by-step explanation:
I just need the answers
Answer:
A=102 and B=0
Step-by-step explanation:
Sub values for X and Y into equation, put into your calculator and you will get the correct answer.
Answer:
a) 102
b) 0
Step-by-step explanation:
A:
[tex]10(10)-(2(5)-12)[/tex] [tex]100-(10-12)[/tex] [tex]100-(-2)[/tex] [tex]100+2[/tex] [tex]102[/tex]B:
[tex]2\left(10\right)-35+4\left(10\right)-\left(3\left(10\right)-5\right)[/tex] [tex]20-35+40-(30-5)[/tex] [tex]25-(25)[/tex] [tex]0[/tex]
Zeke bought 10 shares of a company’s stock at a price of $21.20 per share. He now sees that the price per share of his investment is $32. His broker informs him that the price of the shares may see a decline in the future.
Zeke should ideally
the assets because he stands to earn a profit of
per share from the transactio
Answer:
Sell, 10.80
Step-by-step explanation:
PLATO Users be like
The price of an all-access ticket to the fair is $42.99 before tax. Roland bought the all-access ticket for 40% off. He then paid 7% sales tax on the discounted price. Part A: How much did Roland pay in sales tax? Show all work and steps in your solution. (5 points) Part B: What is the total amount that Roland paid for the ticket? Show all work and steps in your solution.
Answer:
See below
Step by step explanation:
Here it is given that , the price of a ticket is $42.99 before tax . And he got a discount of 40% . So the cost after discount will be ,
[tex]\longrightarrow Cost = \$ 42.99 - \$42.99\times \dfrac{40}{100} \\[/tex]
Simplify ,
[tex]\longrightarrow Cost = \$ 42.99 - \$17.196 \\[/tex]
[tex]\longrightarrow Cost = \$ 25.79 [/tex]
Again it is given that he paid a tax of 7% on the discounted price . So the tax paid in dollars will be ,
[tex]\longrightarrow Tax = 7\% \ of \ \$25.79\\ [/tex]
Simplify ,
[tex]\longrightarrow Tax = \dfrac{7}{100}\times \$ 25.79 [/tex]
[tex]\longrightarrow \underline{\underline{ Tax =\$ 1.80 }} [/tex]
Answer of Part A : He paid a sales tax of $1.80 .
Now the total amount paid can be calculated by adding sales tax to the cost after discount .
[tex]\longrightarrow Total\ Amount = \$ 25.79 +\$ 1.80\\ [/tex]
Add ,
[tex]\longrightarrow \underline{\underline{ Total \ Amount = \$ 27.59}} [/tex]
Answer of Part B : The total amount paid by Ronald for ticket is $27.59 .