Answer:
domain: {3,6,9}
range: {1,4,9}
Step-by-step explanation: take the x values in increasing order for domain and the y values in increasing order for range. Do not repeat values.
Un centro recreacional cuenta con dos piscinas
temperadas, una para adultos que tiene una
capacidad de 240 000 litros de agua y una para
niños cuya capacidad es 2/3 de la de adultos. Cada
una de estas piscinas cuentan con un desagüe que
permite desalojar 2 500 litros de agua cada 5 min.
Si se requiere vaciar el agua de ambas piscinas y los
desagües se abren a las 8:10 am.
1. ¿A qué hora se terminará de vaciar cada piscina?
2. ¿cuánto más tardará en vaciarse una piscina que la otra que la otra?
1) La piscina grande tardó 8 horas en ser vaciado, culminando a las 4: 10 PM, y la piscina pequeña tardó 5 horas y 20 minutos en ser vaciado, culminando a las 1: 30 PM.
2) La piscina grande tardará 2 horas y 40 minutos más en vaciarse que la piscina pequeña.
¿Cómo determinar y estimar tiempos de vaciado de una piscina?
En este problema tenemos el caso de dos piscinas de diferente capacidad, la primera piscina tiene una capacidad de 240 000 litros de agua y la segunda piscina tiene una capacidad de 160 000 litros de agua. Ambas cuenta con un desagüe que desaloja a una tasa de 500 litros de agua por cada minuto de operación.
El tiempo total de vaciado es igual a volumen de la piscina dividido por la tasa de vaciado, entonces:
Piscina grande (V = 240 000 L, Q = 500 L / min)
t = V / Q
t = (240 000 L) / (500 L / min)
t = 480 min
Piscina pequeño (V = 160 000 L, Q = 500 L / min)
t = V / Q
t = (160 000 L) / (500 L / min)
t = 320 min
1) La piscina grande tardó 8 horas en ser vaciado, culminando a las 4: 10 PM, y la piscina pequeña tardó 5 horas y 20 minutos en ser vaciado, culminando a las 1: 30 PM.
2) La piscina grande tardará 2 horas y 40 minutos más en vaciarse que la piscina pequeña.
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7. AB=x+9, BC = 3x-4. Find AC.
B
с
хто + 3x
-3x
3х
2
A
2х
-2x=
The value of AC = 4x + 5.
How to do addition of the variables?A variable is defined as any property, number, or amount that can be counted or measured.
Even despite their different operations, adding and subtracting variables follow the same rule: once adding or subtracting terms with the identical variables, you either add and otherwise subtract the coefficients and leave the result with the variable.
Addition. So because variables are the same in this equation, you can add every one of the coefficients (2, 5, and 4). (a).2a + 5a + 4a = 11a
Subtraction. Since the variables are equal in this equation, you could indeed subtract each of the coefficients (11, 5, and 4). (a).11a – 5a – 4a = 2a
Similarly with the question;
AB = x+9, BC = 3x-4
AC = AB + BC
AC = x + 9 + 3x - 4
Add the variable and constant part separately.
AC = 4x + 5
Thus, the value of AC is found as 4x + 5.
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Brand Y Cola sponsors a survey of 15,559 residents of Texas to determine which brand of cola they prefer. Forty percent say they prefer Brand X, and 60 percent say they prefer Brand Y. Which of the following is the sample used for the survey ?
Answer:
6224 Brand X residents and 9335 Brand Y residents
Step-by-step explanation:
Total number of residents in the survey=15559
Residents that prefer Brand X=40%
Residents that prefer Brand Y=60%
Population sample?
Residents that prefer Brand X= 40/100 ×15559 =6223.6⇒6224 residents
Residents that prefer Brand Y= 60/100 × 15559 =9335.4⇒⇒9335 residents
Answer: B
Step-by-step explanation:
How do I solve this problem?
6³√/16 + ³√128
Answer:
16∛2
Step-by-step explanation:
It looks like you want to simplify ...
6∛16 +∛128
Simplifying radicalsRadicals are simplified by removing any powers corresponding to the index of the radical. Here, we're taking cube roots, so the expression is simplified by removing cubes from under the radical.
[tex]6\sqrt[3]{16}+\sqrt[3]{128}=6\sqrt[3]{2^3\cdot2}+\sqrt[3]{4^3\cdot2}\\\\=6\cdot2\sqrt[3]{2}+4\sqrt[3]{2}=(12+4)\sqrt[3]{2}\\\\=\boxed{16\sqrt[3]{2}}[/tex]
If a new van is valued at $34,600, what will its value be in 3 years if it depreciates 14.2% each year?
Answer:
The answer is $21,854. 35
Step-by-step explanation:
rate = 14.2%
Time = 3 years
Value = 34600
V = (1-r)^t
V=34600(1-0.142)^3
V=34600 (0.858)^3
V=$21,854.35
In a bag of mixed nuts, 46% were peanuts, 0.16 were cashews, and 56 out of the 150 nuts were almonds. Select the statements that are true, based
on the information above. Select all that apply.
A. 16 of the nuts cashews
B. 1/6 of the nuts were cashews
C.69 of the nuts were peanuts
D.25 of nuts were cashews
Solve for the remaining angle and sides of the triangle described below. Round to the nearest hundredth:
C=100°
B=60°
, c=3
A = 20
Use sine rule to find the other angles,
Convert 9.2495 to a percent
Answer:
924.95 %
Step-by-step explanation:
9.2495 x 100% = 924.95 %
Yield: 90%
Purchase Unit: 10 boxes = 1 case
Case Weight: 20 lbs
Case Cost: $48.00
Portion Size:5oz
Step 1: Determine number of edible portions (EP)
Step 2: Determine food cost per portion
1. The number of edible portions (EP) is 64.
2. The food cost per portion = $0.75 per portion.
How is the number determined?The number of edible portions can be determined by first converting the case weight in pounds into ounces.
There are 16 ounces in a pound. 20 pounds will equal 320 ounces by multiplication (16 x 20).
Then, divide 320oz by 5oz to determine the number of portions.
Data and Calculations:Yield: 90%
Purchase Unit: 10 boxes = 1 case
Case Weight: 20 lbs
Case Cost: $48.00
Portion Size: 5oz
1lb = 16oz
20lbs = 320oz (20 x 16)
Edible portions (EP) = 64 (320oz/5oz)
Food cost per portion = $0.75 per portion ($48/64).
Thus, the number of edible portions is 64 with the food cost per portion as $0.75.
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HURRYYY: How many times smaller is 5 x 10−7 than 8.5 x 10−4?
A: 59
B: 170
C: 1,700
D: 5,882
Answer:
1,700
Step-by-step explanation:
5x10^-7 is 0.0000005, while 8.5x10^-4 is 0.00085
0.00085/0.0000005=1700
Thus5 x [tex]10^{-7}[/tex] is 1700 times smaller than 8.5 x [tex]10^{-4}[/tex].
Option C is the correct answer.
Given,
5 x [tex]10^{-7}[/tex] and 8.5 x [tex]10^{-4}[/tex]
We need to find how many times smaller is 5 x [tex]10^{-7}[/tex] than 8.5 x [tex]10^{-4}[/tex].
What are exponents?Exponents are the power of a given number.
Example: a²
a - base
2 - exponent
Compare 5 x [tex]10^{-7}[/tex] and 8.5 x [tex]10^{-4}[/tex].
5 x [tex]10^{-7}[/tex] can be written as 5 / 10000000
8.5 x [tex]10^{-4}[/tex] can be written as 8.5 / 10000
Now,
5 / 10000000 = 0.0000005
8.5 / 10000 = 85 / 100000 = 0.00085
We see that,
0.0000005 is less than 0.00085
Now,
0.0000005 x 1700 = 0.00085
5 x [tex]10^{-7}[/tex] is 1700 times smaller than 8.5 x [tex]10^{-4}[/tex].
We can also write as:
5 x [tex]10^{-7}[/tex] x 17 x 10 ²
= 5 x 17 x [tex]10^{-7}[/tex] x 10²
= 85 x [tex]10^{-7 + 2}[/tex]
= 85 x [tex]10^{-5}[/tex]
= 85/10 x 10 x [tex]10^{-5}[/tex]
= 8.5 x [tex]10^{-5 + 1}[/tex]
= 8.5 x [tex]10^{-4}[/tex]
Thus 5 x [tex]10^{-7}[/tex] is 1700 times smaller than 8.5 x [tex]10^{-4}[/tex].
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1: Find the slope:
Y
-9
X
-1
0
1
2
-3
39 what’s the slope
Answer:
Step-by-step explanation:
83.9
Slopes vs. gradients vs. % grades
Slope
Angle (degrees) Gradient Grade (%)
40 1 83.9
41 1 86.9
42 1 90.0
|−4 − 5x|=1 equals
Answer:
Step-by-step explanation:
. Barney Mullins' regular pay rate is $14.85 an hour. He is paid time-and-a-half
for hours worked over 40 hours in a week, including weekend work. He worked
these hours from Monday through Saturday last week: 8.2, 8.9, 10.1, 9.6, 8.8,
6.7. What was his gross pay for the week?
The gross pay for the week is $776.66.
How to calculate the pay?From the information, he worked these hours from Monday through Saturday last week: 8.2, 8.9, 10.1, 9.6, 8.8, and 6.7.
Therefore, the gross pay will be:
= (8.2 + 8.9 + 10.1 + 9.6 + 8.8 + 6.7) × $14.85
= 52.3 × $14.85
= $776.66
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3. The mean of four numbers is 30. If three of the numbers are 12, 50, and 48, what is the fourth
number?
O 120
O 10
012
030
Answer:
12 10 12 30
Step-by-step explanation:
eso se devide y es 1.030
The sum of the four numbers divided by 4 is equal to the mean.
the sum/4 = mean
(12 + 50 + 48 + n)/4 = 30
(110 + n)/4 = 30
(110 + n) = 30 × 4
(110 + n) = 120
n = 120 - 110
n = 10
Simplify
9^4/9^24
Report your answer as a fraction.
The simplified fraction is [tex]\frac{1}{9^{20} }[/tex].
The fraction is [tex]\frac{9^{4} }{9^{24} }[/tex], we have to solve the fraction in the simplest form
[tex]\frac{9^{4} }{9^{24} }[/tex]
[tex]9^{4-24}[/tex]
As we know that, [tex]a^{m}[/tex]/[tex]a^{n}[/tex]= [tex]a^{m-n}[/tex]
[tex]9^{-20}[/tex]
1/[tex]9^{20}[/tex]
Therefore the simplified value is 1/[tex]9^{20}[/tex] which is in the form of a fraction.
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Express in kg the mass of 0.3 tonne
0.3 tonnne=300 kilograms
In the given question mass is given in tonne and we have to convert it into tonne.
Among the SI base units, the kilogram (kg) is the only one whose name and symbol, for historical reasons, include a prefix. "Kilo" the SI prefix for 1000 or 103. Names and symbols for decimal multiples and submultiples of the unit of mass are formed by attaching prefix names to the unit name "gram," and prefix symbols to the unit symbol "g."
To calculate a tonne value to the corresponding value in kg, just multiply the quantity in tonne by 1000 (the conversion factor). Here is the formula:
Value in kg = value in tonne × 1000
Suppose you want to convert 0.3 tonne into kg. Using the conversion formula above, you will get:
Value in kg = 0.3 × 1000 = 300 kg
final answer is 0.3 tonne=300 kilograms.
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given f(x) = 4x+1
evaluate f(2)
f(2) = ?
evaluate f(-3)
f(-3)= ?
The value of the functions are:
f(2) = 9
f(2) = -11
Use the concept of fucntion defined as:
A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output.
The given function is,
f(x) = 4x+1
Put x = 2 in the given fucntion,
f(2) = 4(2) + 1
f(2) = 9
Put x = -3 in the given fucntion,
f(2) = 4(-3) + 1
f(2) = -11
Hence, The functions,
f(2) = 9
f(2) = -11
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Point W is the midpoint of Segment VY. VW=9x + 7 and WY = 16x - 28. Find VY.
since W is the midpoint, that simply means that both halves are twins, so
[tex]V\stackrel{9x+7}{\rule[0.35em]{10em}{0.25pt}} W\stackrel{16x - 28}{\rule[0.35em]{10em}{0.25pt}} Y \\\\\\ \stackrel{VW}{9x+7}~~ = ~~\stackrel{WY}{16x-28}\implies 7=7x-28\implies 35=7x\implies \cfrac{35}{7}=x \\\\\\ \boxed{5=x}\hspace{5em}\stackrel{VW}{9(5)+7\implies 52}\hspace{5em}\underset{52~~ + ~~52}{\stackrel{\textit{\LARGE VY}}{104}}[/tex]
The length of segment VY, represented by "a," is 25x - 21.
How to find the length of the segmentTo find the length of segment VY, we can use the fact that W is the midpoint of VY. The midpoint of a line segment divides it into two equal parts. Therefore, the length of VW plus the length of WY equals the length of VY.
Let VY be represented by "a." Then, according to the midpoint property:
VW + WY = VY
Substitute the given expressions for VW and WY:
(9x + 7) + (16x - 28) = a
Now, combine like terms:
25x - 21 = a
So, the length of segment VY, represented by "a," is 25x - 21.
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The population of deer in a national forest has consistently increased by 5% each year. This year, the population of deer is 5,000. If the population increases at the same rate, what number of deer is expected to be in the national forest next year?
Select the correct answer below:
4,750
5,025
5,250
5,263
5,512
Answer:
5250.
Step-by-step explanation:
Consistent = Population of deer increases 5% each year.
This year = 5000
105% of 5000 = 5250
2y=128, then the value of y is:
y = 64.
Step-by-step explanation:
[tex]{ \red{ \mathfrak{2}}}{ \bold{y}} = { \red{ \mathfrak{128}}}[/tex]
[tex]{ \bold{y}} = \frac{ \red{ \mathfrak{128}}}{ \red{ \mathfrak{2}}} [/tex]
[tex]{ \bold{y}} = { \red{ \mathfrak{64}}}[/tex]
[tex]{ \boxed{ \green{ { \sf{y = 64}}}}}[/tex]
Step-by-step explanation:
[tex]{ \red{ \sf{2y = 128}}}[/tex]
Divide both the sides by 2, then
[tex]{ \red{ \sf{ \frac {\cancel2}{ \cancel2}y}}} = { \blue{ \tt{ \frac{ \cancel{128} ^{64}}{ \cancel2_{1}}}}}[/tex]
[tex]{ \blue{ \boxed{ \green{ \boxed{ \pink{ \sf{y = 64}}}}}}}[/tex]
2) Let a =i+2j-7k and b=5i-2j+4K Find
a) a.b
b) axb
C) The direction cosine of axb
D) The Unit Vector Perpendicular to both a&b
a) Dot product: recall that
i • i = j • j = k • k = 1
i • j = i • k = j • k = 0
Then
a • b = (i + 2j - 7k) • (5i - 2j + 4k)
a • b = 5 (i • i) - 4 (j • j) - 28 (k • k)
a • b = 5 - 4 - 28
a • b = -27
b) Cross product: recall that
i × i = j × j = k × k = 0
i × j = -(j × i) = k
j × k = -(k × j) = i
k × i = -(i × k) = j
Then
a × b = (i + 2j - 7k) × (5i - 2j + 4k)
a × b = -2 (i × j) + 4 (i × k) + 10 (j × i) + 8 (j × k) - 35 (k × i) + 14 (k × j)
a × b = -12 (i × j) - 6 (j × k) - 39 (k × i)
a × b = -6i - 39j - 12k
c) Recall the dot product identity
x • y = ||x|| ||y|| cos(θ)
We have
||a × b|| = √((-6)² + (-39)² + (-12)²) = 9√21
Then the direction cosines α, β, γ of a × b are
(a × b) • i = ||a × b|| ||i|| cos(α)
⇒ cos(α) = -6/(9√21) = -2/(3√21)
(a × b) • j = ||a × b|| ||j|| cos(β)
⇒ cos(β) = -39/(9√21)
(a × b) • k = ||a × b|| ||k|| cos(γ)
⇒ cos(γ) = -12/(9√21) = -4/(3√21)
d) a × b is perpendicular to both a and b, so we can get a unit vector by scaling this down by its magnitude. This is the same as the vector of direction cosines:
(a × b)/||a × b|| = (-6i - 39j - 12k)/(9√21)
(a × b)/||a × b|| = -2/(3√21) i - 39/(9√21) k - 4/(3√21) k
Is -|-5| Less than, greater than or equal to 5?
Answer:
less than
Step-by-step explanation:
|-5| is 5 so -|-5| is negative 5 (-5)
-5 is less than 5
A study was performed with a random sample of 5 people from a certain city. What population would be appropriate for generalizing conclusions from the study, assuming the data collection methods used did not introduce biases?
The standard deviation is a statistic that describes the degree of volatility or dispersion in a set of numerical values. While a high standard deviation suggests that the values are dispersed throughout a wider range, a low standard deviation suggests that the values tend to be close to the established mean.
High sample size is typically crucial in order to be able to draw generalizations from a sample, aside from avoiding bias. Since the sample size is modest, it will thus be possible to draw general conclusions about the study utilizing a larger sample, in my opinion.
The size of the sample has a significant impact on whether an experiment is legitimate. The central limit theorem states that as sample size rises, the sample mean approaches the population means value.
Because of this, generalizing from just five samples regarding a population of city dwellers won't produce a result that can be generalized.
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A charter tours bus driver can fit an average of 54 passengers on his bus for each tour. He is scheduled to run 9 tours over the next month. At this rate, how many passengers will he give tours to on his bus?
The number of passengers that he will give tours to on his bus is 486 passengers.
How to compute the value?From the information, the charter tours bus driver can fit an average of 54 passengers on his bus for each tour and he is scheduled to run 9 tours over the next month.
The number of passengers that he will be able to carry will be:
= 54× 9
= 486
There'll be 486 passengers.
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Rewrite without parentheses.
3
-4bc²(7b²³-5b5c6 +8c6)
The answer is [tex]-28b^4c^2+20b^6c^8-32bc^8[/tex] without parentheses .
Parentheses, or "brackets", are the familiar ( ) symbols used in pairs to group things or indicate the order of operations in an equation. Example: 5 × (6 − 4) = 5 × 2 = 10 the parentheses group 6-4 and tell us to compute it first.The singular form of parentheses is called parentheses. Parentheses are used to indicate changes in the normal order of operations. Parentheses are also known as parentheses, curly braces, elliptical brackets, or simply parentheses. The "and" symbol is called parenthesis and is commonly used for grouping.
To write this expression without parentheses, each term inside the parentheses must be multiplied by the term outside the parentheses.
[tex]-4bc^2(7b^3-5b^5c^6 +8c^6)=(-4bc.7b^3)+(4bc^2.5b^5c^6)-(4bc^2.8c^6)\\-4bc^2(7b^3-5b^5c^6 +8c^6)=-28b^4c+20b^6c^8-32bc^8[/tex]
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Steve has $5. Nancy has 250% as much money as Steve. How much money does Nancy have?
The amount of money Nancy has is $12.5.
Given that, Steve has $5. Nancy has 250% as much money as Steve.
We need to find out how much money Nancy has.
What is the percentage?A specific portion or amount in every hundred is what is meant by the term percentage. It is a fraction with the denominator 100, and the symbol for it is "%."
Let the amount of money Nancy has to be x.
Now, x=250% of 5
=250/100 × 5
=2.5 × 5
=12.5
Therefore, the amount of money Nancy has is $12.5.
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A number is chosen at random from 1 to 10. Find the probability of selecting number 4 or smaller numbers
The probability of selecting number 4 or smaller numbers 2 / 5 .
Probability could be a live of the chance of an occasion to occur. several events can not be expected with total certainty. we are able to predict solely the possibility of an occasion to occur i.e. however doubtless they're to happen, using it. likelihood will direct from zero to one, wherever zero suggests that the event to be Associate in Nursing not possible one and one indicates a definite event.The likelihood formula is outlined because the chance of an occasion to happen is adequate the quantitative relation of variety|the amount|the quantity} of favourable outcomes and also the total number of outcomes.Probability of event to happen P(E) = variety of favourable outcomes/Total variety of outcomes
We have given number from 1 to 10.
The number which are smaller than four and equal to 4 = 4
Total number of outcomes = 10
Probability = 4 /10
= 2 / 5
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PLEASE ANSWERING THIS QUESTIONS!!
The length of a rectangle is two more than double the width. If the perimeter is 82 inches, find the dimensions.
The width is (Blank) inches.
The length is (Blank) inches.
Rules answering these questions:
Explain your answer!
Do not spam answers!
Show your work!
Nonsense answers will be reported and delete your answers.
Thanks!
[tex]\huge\mathcal {♨Answer♥}[/tex]
Let's get the width as [tex]\large\texttt {x}[/tex]
So,
The length of the rectangle is [tex]\large\texttt {2x +2}[/tex]
The perimeter of the rectangle is [tex]\large\texttt {82 inches}[/tex]
Let's get the answer for width,
☆ 2 (2x + 2) + 2x = 82
4x + 4 + 2x = 82
6x + 4 = 82 - 4
6x ÷ 6 = 78 ÷ 6
x = 13
Let's get the answer for length,
☆ 2x + 2
2 × 13 + 2
28
Then,
[tex]\large\texttt {↪The width is 13 inches}[/tex]
[tex]\large\texttt {↪The length is 28 inches}[/tex]
☆...hope this helps...☆
_♡_mashi_♡_
Solve for c.
2c 12c + 13c = 12
The value of c is 4.
Here, we are given an equation
2c - 12c + 13c = 12
Since, all the terms on the left hand side have a c in them, we can take it common outside the bracket as follows-
c (2 - 12 + 13) = 12
or c (2 + 13 - 12) = 12
Firstly, we add the positive terms in the bracket which will give us
c (15 -12) = 12
Now, we subtract 12 from 15 to get
c (3) = 12
or 3c = 12
Dividing by 3 on both sides we get
c = 12/3
c = 4
Thus, the value of c is 4.
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Your question was incomplete. Find the full content below-
Solve for c.
2c-12c+13c=12
Help, urgent!!!!! THANKS
THE FIRST ANSWER WILL BE MARKED THE BRAINLIEST, AND 20 POINTS!!!!!
Answer:
1.3 < x < 6.7
Step-by-step explanation:
4.0 - 2.7 = 1.3
4.0 + 2.7 = 6.7
Hope this helps!! <3
