Answer:
There are no options???
A new hotel was built with r rooms. The first weekend it was open, 3/5 of them were reserved. Which of the following expressions represents the number of rooms which were reserved?
A r-3/5
B r x 3/5
C r+3/5
D ÷3/5
PLEASE HELP ITS STUDY ISLAND
Answer:
c r/ 3/5
Step-by-step explanation:
i think
Brand A has a box of 25 forks for 1.99 and Brand B has a box of 42 totals for 3.89. What is the unit price for each brand and what brand is a better buy based on unit price
Answer:
Brand A
Step-by-step explanation:
Brand A has a box of 25 forks for 1.99
Take the price per fork
1.99 /25 = .0796
.08 per fork
Brand B has a box of 42 totals for 3.89
3.89 / 42
.092319048
.09 per fork
indicate which of the following sentences are statements. (select all that apply.) A. 1,024 is the smallest four-digit number that is a perfect square. B.he is a mathematics major. C.128=26 D.X=26
D. X=26 is a mathematical statements, since it can be either correct or incorrect.
To comprehend any mathematical statement, we must first understand what mathematics is all about. When we answer a math problem, the solution is either correct or incorrect. There is no midway to the problems! Any mathematical statement is in the same scenario. A mathematical statement is either correct or incorrect.
In this scenario, the statement, 'A. 1,024 is the smallest four-digit number that is a perfect square.', and 'B. He is a mathematics major.' are correct statements. And 'C. 128=26' is a incorrect statement. Therefore, these options are not the mathematical statements because A and B is correct statement and C is a false statement. Meanwhile, D. X=26 is a mathematical statement because it is either correct or incorrect, depending on the given problem. Therefore D. X=26 is the correct answer for a mathematical statement.
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Which number has a six that is ten times the value of the six in 1.67?
A. 1.96
B. 6.07
C. 5.36
D. 9.62
Answer:
B. 6.07
HAS A SIX THAT IS TEN TIMES THE VALUE OF THE SIX IN 1.67
Given the following list of numbers, find the mean. 5,6,12,2,5,12,14
Answer:
the mean is 8
Step-by-step explanation:
added them all together and divided by 7
The mean of numbers will be 8.
What is Addition?
The process of combining two or more numbers is called the Addition.
Given that;
The numbers are,
⇒ 5,6,12,2,5,12,14
Now,
Since, The numbers are,
⇒ 5,6,12,2,5,12,14
Hence, The mean = 5 + 6 + 12 + 2 + 5 + 12 + 14 / 7
= 56/7
= 8
Thus, The mean of numbers will be 8.
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help me plss asp send everything
Answer:
D
Step-by-step explanation:
Since the cost of making backpack is $10 They have a pprfit of $30 for each one(30x)
But they also have $12,000 operaing expenses (-12,000)
And all that should be 980 or more than that (≥)
30x-12,000 ≥ 980
what statements are true about this function
The true statement about the function is C. function f and function g are not inverse because f{g(x)} = g{f(x)} .
What is inverse of a function?An inverse function or an anti function, which can reverse into another function.In simple words, if any function “f” takes x to y then, the inverse of “f” will take y to x. If the function is denoted by 'f' or 'F', then the inverse function is denoted by f-1 or F-1.
now the given functions are,
f(x) = √(2x + 2) and
g(x) = (x^2 -2)/2
Now,
f{g(x)} = f{(x^2 -2)/2}
= √(2(x^2 -2)/2 + 2)
= √ x^2 -2 + 2
f{g(x)} = √ x^2
f{g(x)} = x
Now,
g{f(x)} = g{ √(2x + 2)}
= (√(2x + 2)^2 -2)/2
= (2x + 2) -2 /2
= 2x/2
f{g(x)} = x
Here we see that ,
f{g(x)} = g{f(x)}
Hence f and g are not inverses.
∴The true statement about the function is C. function f and function g are not inverse because f{g(x)} = g{f(x)} .
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Please help me with this question
9514 1404 393
Answer:
D(1, 2)
Step-by-step explanation:
The ordered pair is always (x-coordinate, y-coordinate).
The x-coordinate is the distance to the right of the y-axis. (It is negative for points left of the y-axis.) Here, point D lies 1 unit right of the y-axis, so its x-coordinate is 1.
The y-coordinate is the distance above the x-axis. (It is negative for points below the x-axis). Here, point D lies 2 units above the x-axis, so its y-coordinate is 2.
The ordered pair describing the location of D is ...
(x-coordinate, y-coordinate) = (1, 2)
chau made $270 for 18 hours of work. At the same rate, how many hours would he have to work to make $105
Answer:
7 hours
Step-by-step explanation:
here,
270/18=105/x
x=(105*18)/270
x=7
Chau made $270 for 18 hours of work. At the same rate, Therefore Chau would have to work 7 hours at the same rate to make $105.
To find out how many hours Chau would have to work to make $105 at the same rate, we can set up a proportion using the given information:
Let x be the number of hours Chau needs to work to make $105.
We know that Chau made $270 for 18 hours of work, so the rate of earnings per hour is:
Rate = Total earnings / Number of hours
Rate = $270 / 18 hours
Rate = $15 per hour
Now, we can set up the proportion:
$15 per hour = $105 / x hours
To find x, we can cross-multiply:
$15 × x = $105
Now, solve for x:
x = $105 / $15
x = 7 hours
So, Chau would have to work 7 hours at the same rate to make $105.
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Edward took a survey of his classmates to see how many pets each student has. The dot plot shows the results of his survey
Please help me I need help with algebra 2
Answer:If (x + 1) is a factor of the polynomial p(x), then p(x) can be written as:
p(x) = (x + 1) q(x)
for some polynomial q(x). By substituting x = -1 into this expression, we can find the value of c:
p(-1) = (-1 + 1) q(-1) = 0 q(-1) = 0
So,
0 = 5(-1)^4 + 7(-1)^3 - 2(-1)^2 - 3(-1) + c
= -5 + 7 - 2 + 3 + c
= c = 3
So, the value of c that makes (x + 1) a factor of the polynomial p(x) = 5x^4 + 7x^3 - 2x^2 - 3x + c is c = 3.
99 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
Two stockpots are similar cylinders. The smaller stockpot has a height of 10 inches and a radius of 2.5 inches, the volume of larger one is 628.32 cubic inches.
We know that, to find volume:
Volume = π * \(r^2\) * h
For the smaller stockpot:
Radius (r) = 2.5 inches
Height (h) = 10 inches
Volume = π * (2.5)² * 10 ≈ 196.35 cubic inches
For the larger stockpot:
Radius (r) = 2.5 inches
Height (h) = 16 inches
Volume = π * (2.5)² * 16
≈ 628.32 cubic inches
Thus, the volume of larger one is 628.32 cubic inches.
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What is the GCF
of 18 and 27?
Answer:
The occurrences of common prime factors of 18 and 27 are 3 and 3. So the greatest common factor of 18 and 27 is 3 x 3 = 9.
Step-by-step explanation:
If im correct, Brainliest?
Answer:
9
Step-by-step explanation:
u can search it up lol
Bill has 5 cups of strawberries he uses 2 and 1/6 to make smoothies he uses the rest of the strawberries to make fruit cups he needs 2/3 cups of strawberries for each fruit cup how many fruit cups can he make
Answer: Total fruit cups made = \(4\dfrac14\)
Step-by-step explanation:
Total cups of strawberries = 5
Cups used for smoothies = \(2\dfrac16=\dfrac{13}{6}\)
Since rest of the strawberries are used to make fruit cups = \(5-\dfrac{13}{6}=\dfrac{30-13}{6}=\dfrac{17}{6}\)
Cups of strawberries for each fruit cup = \(\dfrac23\)
Total fruit cups made = (rest of the strawberries ) ÷(Cups of strawberries for each fruit cup)
\(=\dfrac{17}{6}\div \dfrac23\\\\=\dfrac{17}{6}\times\dfrac32\\\\=\dfrac{17}{4}\\\\=4\dfrac14\)
∴ Total fruit cups made = \(4\dfrac14\)
simplify the expression -7/9- 5/10
Answer:
-23/18
Step-by-step explanation:
-7/9 = -70/90
-5/10 = -45/90
-70-45 = -115
-115/90
-23/18
EDIT: whoops, I subtracted 45 from 70 instead of adding them. it should be correct now.
hope this helps, goodluck with your schoolwork/homework.
sorry for any errors or bad explanations.
Raul simplified the expression, as shown below.
–[3h + 7h(2 – h)] = –[10h(2 – h)] = –[20h – h] = –19h
Describe the error(s) in Raul’s work.
Answer:
Raul's errors are in the application of the distributive property(he applied it wrongly), in not respecting the precedence of operations, and in the multiplication of two terms with the same base(we add the exponent).
Step-by-step explanation:
Distributive property:
The distributive property of multiplication is:
a*(b + c) = a*b + a*c
Precedence of operations:
First multiplication, then addition.
Multiplication of terms with the same base:
The multiplication of h*h = h², which Raul missed.
The correct simplification is given by:
\(-[3h + 7h(2-h)] = -[3h + 14h - 7h^2] = -[17h - 7h^2]=7h^2 - 17h\)
Answer:
he should have worked out 7h(2 - h) first before adding the 3h. (first step)
2nd step he multiplied the 2 by -10h but he also should have multiplied the -h by the -10h ( Distributive law)
Step-by-step explanation:
Got it right on edge
Timothy buys
Two loaves of bread at $2.43 each
One jar of jam at $2.29
1
2
kg of cheese at $9.54 per kg
Timothy pays with a $20 note.
How much change should Timothy get?
Answer: 8.08
Step-by-step explanation:
20 minus(2x 2.43 +2.29 +0.5 x 9.54)
hope this helps please
mark brainlist
The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 17 days.
In what range would you expect to find the middle 98% of most pregnancies?
Between
299.34
Incorrect229.3 and
303.4
Incorrect308.7.
If you were to draw samples of size 58 from this population, in what range would you expect to find the middle 98% of most averages for the lengths of pregnancies in the sample?
Between
264
Correct and
274.1
Correct.
Enter your answers as numbers. Your answers should be accurate to 1 decimal places.
You would expect to find the middle 98% of most averages for the lengths of pregnancies in the sample between approximately 264.0 days and 274.1 days.
To find the range in which you would expect to find the middle 98% of most pregnancies, you can use the concept of z-scores and the standard normal distribution.
For the given data:
Mean (μ) = 269 days
Standard deviation (σ) = 17 days
To find the range, we need to find the z-scores corresponding to the 1% and 99% percentiles. Since the normal distribution is symmetric, we can find the z-scores by subtracting and adding the respective values from the mean.
To find the z-score for the 1% percentile (lower bound):
z1 = Φ^(-1)(0.01)
Similarly, to find the z-score for the 99% percentile (upper bound):
z2 = Φ^(-1)(0.99)
Now, we can calculate the z-scores:
z1 = Φ^(-1)(0.01) ≈ -2.33
z2 = Φ^(-1)(0.99) ≈ 2.33
To find the corresponding values in terms of days, we multiply the z-scores by the standard deviation and add/subtract them from the mean:
lower bound = μ + (z1 * σ) = 269 + (-2.33 * 17) ≈ 229.4 days
upper bound = μ + (z2 * σ) = 269 + (2.33 * 17) ≈ 308.6 days
Therefore, you would expect to find the middle 98% of most pregnancies between approximately 229.4 days and 308.6 days.
Now, let's consider drawing samples of size 58 from this population. The mean and standard deviation of the sample means can be calculated as follows:
Mean of sample means (μ') = μ = 269 days
Standard deviation of sample means (σ') = σ / sqrt(n) = 17 / sqrt(58) ≈ 2.229
To find the range in which you would expect to find the middle 98% of most averages for the lengths of pregnancies in the sample, we repeat the previous steps using the mean of the sample means (μ') and the standard deviation of the sample means (σ').
Now, calculate the z-scores:
z1 = Φ^(-1)(0.01) ≈ -2.33
z2 = Φ^(-1)(0.99) ≈ 2.33
Multiply the z-scores by the standard deviation of the sample means and add/subtract them from the mean of the sample means:
lower bound = μ' + (z1 * σ') = 269 + (-2.33 * 2.229) ≈ 264.0 days
upper bound = μ' + (z2 * σ') = 269 + (2.33 * 2.229) ≈ 274.1 days
Therefore, you would expect to find the middle 98% of most averages for the lengths of pregnancies in the sample between approximately 264.0 days and 274.1 days.
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Tell if the slope is positive, negative, zero, or no slope.
Answer:
No slope.
Step-by-step explanation:
There is no such thing as a vertical slope, meaning that there is no slope. I hope this helps! :)
Answer:
No slope
Step-by-step explanation:
The line is going straight up :)
Brainliest pls?
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
(A) Triangle ABC, and triangle QPR are similar based on side-side-side (SSS) similarity.
(B) Triangle ABC and triangle DEF are similar based on side-side-side (SSS) similarity.
(C) ) Triangle STU and triangle JPM are similar based on side-angle-side (SAS) similarity.
(D) ) Triangle SMK and triangle QTR are similar based on angle-angle (AA) similarity.
What are similar triangles?Similar triangles have the same corresponding angle measures and proportional side lengths.
The triangle similarity criteria are:
AA (Angle-Angle)SSS (Side-Side-Side)SAS (Side-Angle-Side)(A) Triangle ABC, and triangle QPR are similar based on side-side-side similarity.
12/8 = 9/6
1.5 = 1.5
(B) Triangle ABC and triangle DEF are similar base on side-side-side similarity as shown in the side lengths.
(C) ) Triangle STU and triangle JPM are similar base on side-angle-side similarity.
14/10 = 21/15
1.4 =
(D) ) Triangle SMK and triangle QTR are similar base on angle-angle similarity.
SMK = 90⁰, 60⁰, 30⁰
QTR = 90⁰, 30⁰, 60⁰
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Find the midpoint of the line segment with endpoints: Midpoint = (-5/2, -1) to (5/2,8) Give your answer as a point, using integers or reduced fractions for coordinates.
Answer:
(0,3.5)
Step-by-step explanation:
midpoint formula :)
What is the answer I’m dying here and need to graduate
We can conclude that -5 is not the domain of f o g.
What is function?A function is a relation between a dependent and independent variable.
Mathematically, we can write → y = f(x) = ax + b.
Given are two functions -
f(x) = 5x - 7
g(x) = √(x - 2)
We can write the functions as -
f o g = f(g{x}) = 5√(x - 2) - 7
Now, refer to the graph attached. At {x} = - 5, the function does not exist. So, we can write that -5 is not the domain of f o g.
Therefore, we can conclude that -5 is not the domain of f o g.
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las dimensiones de un depósito de agua son 10m×7m×5m.dibuja y calcula cuantos litros de agua contendrá el depósito cuando este completamente lleno.
In order to determine how many liters of water the container will have, calculate the volume of the container:
V = (10 m)(7 m)(5 m)
V = 350 m³
next, convert the previous volume to liters, by using the following convertion:
1 m³ = 1,000 L
then, you have:
V = 350 (1,000 L)
V = 350,000 L
Hence, 350,000 L is the amount of water the container will have when it is full
Use the coordinates of the labeled point to find the point-slope equation of
the line.
A. y-5=-3(x+3)
B.y-3-(x+5)
C. y + 5 = 3(x+3)
D. y + 5 = -3(x-3)
(3,-5)
By using the coordinates of the labeled point, the point-slope equation of the line include the following: D. y + 5 = -3(x - 3)
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.0 5 2 -2
First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (4 + 5)/(0 - 3)
Slope (m) = -9/3
Slope (m) = -3
At data point (3, -5) and a slope of -3, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - (-5) = 3(x - 3)
y + 5 = -3(x - 3)
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Write a slope-intercept equation for a line that passes through (-3,1) and (3, - 11).
Answer:
look below
Step-by-step explanation:
Slope intercept is y=mx+b
first we need to do this
-11 - 1
--------
3 - (-)3
a negative - a negative is just adding so really its
-11 - 1
-----------
3 + 3
this gets you -12/6
-12/6 is -2 which means are slope is -2
now we have
y=2x+b but now we need to find b
We replace y with a y from the prob and the x with an x for the problem
so lets use -3,1
so now we have
1 = 2(-3) + b
2x-3 is -6
We need to get to one so we need to do + 7 which means b = 7
so the equation is y=2x+7
Please Solve. 100 points for correct answers
What is
x + 9 = 18 + -2x
Answer:
The solution to the equation x + 9 = 18 + -2x is x = 3.
Step-by-step explanation:
To solve this equation for x, you can first simplify both sides of the equation by combining like terms.
x + 9 = 18 + -2x
Add 2x to both sides:
x + 2x + 9 = 18
Combine like terms:
3x + 9 = 18
Subtract 9 from both sides:
3x = 9
Finally, divide both sides by 3 to solve for x:
x = 3
Therefore, the solution to the equation x + 9 = 18 + -2x is x = 3.
HOPE THIS HELPED:)))
Answer:
3
Step-by-step explanation:
replace the + with - signs
x+9=18−2x
add the 2x to both equations and x becomes a 1 since we dont know its value.
3x+9=18
then you got to subtract 9 by 18 and that equals to 9 then
3x=9 3 divided by 9 is 3 and when simplified
and the answer is 3
simplify the following algebraic expressions.
-2x + 5 + 10x - 9
3(x + 7) + 2(-x + 4) + 5x
Answer: 8x-4
6x+29
Step-by-step explanation:
An acute triangle might have interior angles that measure what? Please helpppp
Multiply: (x−5)(x−7) A x2−12x+35 B x2+2x+35 C x2+35 D x2+35x−12
Answer:
x^2 -12x+35
Step-by-step explanation:
(x−5)(x−7)
FOIL
first x*x = x^2
outer -7x
inner -5x
last -7*-5 = 35
Add them together
x^2 -7x-5x +35
x^2 -12x+35
Answer:
Step-by-step explanation:
x*x=2x
x*-7=-7x
-5*x=-5x
-5*-7=+35
2x-12x+35
A