Step-by-step explanation:
the answer it gave me is 29.8.
What is an expression in math examples?
Expression is a constant, variable or constant multiplied by a variable separated by operator.
What is algebraic expression and identity?Identity, as we all know, is equality, which holds true regardless of the variable's value. These identities are algebraic formulas that show that for all possible values of the variable, the Left-Hand Side (LHS) and the Right-Hand Side (RHS) of the equation are equal. A phrase that can have any value is called a variable.
What are the types of algebraic expressions?Monomial, polynomial and binomial are the three types of algebraic expression.
An expression with variables, constants, and algebraic operations is known as an algebraic expression (like subtraction, addition, multiplication, etc.). Terms comprise expressions. For instance: 5x+20y, 6-8x.
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Find the coordinates of point P along the directed line segment AB so that AP to PB is the given ratio.
The coordinates of point P along the directed line segment AB is (8, 10).
What is the coordinate of the point P?The coordinates of point P along the directed line segment AB so that AP to PB is the given ratio 1: 4 is calculated as follows;
We will use the following formula;
P(x, y) = ((mx₂) + (nx₁))/(m + n), ((my₂) + (ny₁))/(m + n)
Where;
m and n are the ratios = 1 : 4(x₁, x₂) are the x coordinates = (6, 16)(y₁, y₂) are the y coordinates = (9, 14)The coordinates of point P along the directed line segment AB is;
Px = ( 1 x 16 + 4x6 ) / (1 + 4) = 8
Py = ( 1 x 14 + 4 x 9) / (1 + 4) = 10
(Px, Py) = (8, 10)
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Carol bought 360g of flour. 8.5 of it was lost when she transferred the flour to a container. what was the amount of flour lost?
Answer:
8.5g
Step-by-step explanation:
turn 40% into a whole number
Answer:
as a decimal it is 0.4 as a fraction it is 2/5
Hi! I believe your answer is 40. I hope this helps you! Good luck and have a great day/night. ❤️✨
what phonetic property or features distinguishes the set of sounds in set A from those in set B?
A. [p] [t] [k] [s] [f]
B. [b] [d] [g] [z] [v]
Place of Articulation
Manner of Articulation
There are no differences between these sets of sounds
Voicing
The phonetic property or features that distinguishes the set of sounds in set A from those in set B is Voicing.
What's voicingVoicing is the phonetic property or feature that distinguishes the set of sounds in set A from those in set B.
Voicing is the difference between sounds that are produced either with vibration of the vocal folds, which is voiced, or without such a vibration, which is voiceless.
The sets of sounds in set A include [p] [t] [k] [s] [f] while the sets of sounds in set B include [b] [d] [g] [z] [v].Voicing is a crucial feature in distinguishing the two sets of sounds.
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Rachel is painting the walls of her bedroom. She makes a pink color of paint
by mixing some cups of red paint into some white paint. She added three
cups of red paint to four gallons of white paint to get the perfect pink color,
Question: Rachel wants to make more of the pink paint that matches the color
she made before. She starts with 10 gallons of white paint. How many cups of
red paint should Rachel add so that the pink color matches?
Answer:
8 cups
Step-by-step explanation:
first it was 4 gallons and 3 cups x2=8 gallons 6 cups then just go to 10 gallons 8 cups
The mass of the Earth is 5.97 × 1024 kg and the mass of Jupiter is 1.90×10²7.
This expression can be used to find the ratio.
What is the ratio of the mass of Earth to the mass of Jupiter?
The ratio of the mass of Earth to the mass of Jupiter is equal to 3.14*10⁻³, thus option B is correct.
What is ratio?An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. For instance, you could express the ratio as follows: 1: 3 if there is 1 boy and 3 girls (for every one boy there are 3 girls)
Given, the mass of Earth = 5.97*10²⁴ kg
Also, mass of Jupiter = 1.90*10²⁷ kg
Hence, ratio of mass of Earth to Jupiter is calculated by dividing mass of Earth upon the mass of Jupiter.
Ratio = (5.97*10²⁴/1.90*10²⁷ )
= 3.14*10²⁴⁻²⁷
= 3.14*10⁻³
Thus, the ratio of the mass of Earth to the mass of Jupiter is equal to 3.14*10⁻³, thus option B is correct.
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Help me with this 9 math
The height of the cylinder is 4 feet.
How to find the height of a cylinder?The volume of a cylinder can be found as follows;
volume of a cylinder = base area × height
Therefore,
base area = πr²
volume of the cylinder = 48π ft³
base area = 12π ft²
Therefore, let's find the height of the cylinder as follows:
48π = 12π × h
divide both sides of the equation by 12π
h = 48π / 12π
h = 4 ft
Therefore,
height of the cylinder = 4 feet
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Can someone help I cant understand a method for this pls ASAP
Answer:
105 hours
Step-by-step explanation:
→ Find how many days in a week
7
→ Multiply this by his gaming time
7 × 15 = 105
Answer:
He plays 105 hours a week.
Step-by-step explanation:
The brother plays 15 hours a week.
Week = 7 Days
15 x 7 = 105
Hope you enjoyed this simple answer! :)
sneaky if u found it >:)
Find the equation for the circle with a diameter whose endpoints are (2,−5​) and (-3,1).
Write the standard equation for the circle.
(Use integers or fractions for any numbers in the equation.)
The equation for the circle with a diameter whose endpoints are (2, -5) and (-3, 1) is (x - 1)^2 + (y - 1)^2 = 13.
The endpoints are (2, -5) and (-3,1).
The standard form equation for a circle is known as
\((x-a)^2+(y-b)^2=r^2\)
where (a, b) are the center's coordinates and (r) is the radius.
Taking into account the stated endpoints of the diameter. The center will then be at the midpoint, and the radius will be the distance between the center and either of the two endpoints.
Calculating the midpoint is as follows:
\(\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)\)
where, \((x_{1},y_{1})\) and \((x_{2},y_{2})\) are two points.
Now putting the values
\(\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)=\left(\frac{-2+4}{2}, \frac{3-1}{2}\right)\)
\(\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)=\left(\frac{2}{2}, \frac{2}{2}\right)\)
\(\left(\frac{x_{1}+x_{2}}{2}, \frac{y_{1}+y_{2}}{2}\right)=\left(2, 1)\)
Now we determine the equation of circle.
The center (2, 1) and the terminal are the two points (-2, 3).
r = \(\sqrt{(-2-1)^2+(3-1)^2}\)
r =\(\sqrt{(-3)^2+(2)^2}\)
r = \(\sqrt{9+4}\)
r = √13
Now we can write the equation of circle as:
(x - 1)^2 + (y - 1)^2 = (√13)^2
(x - 1)^2 + (y - 1)^2 = 13
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The complete question is:
Find the equation for the circle with a diameter whose endpoints are (2, -5) and (-3, 1).
Write the standard equation for the circle.
At an internet cafe, there is a flat fee to log into a computer and an additional charge for each minute on the computer. The fee (in dollars) for using Mac for x minutes is given by M=0. 5+0. 07 x
How do I solve this: h + 6/5 = 2
Can someone please help me with this please?
Step-by-step explanation:
\(12 {x}^{2} + 9 = - 6x\)
\(12 {x}^{2} + 6x + 9\)
Find the discrimant of the function.
\({b {}^{2} - 4ac } \)
\( {6}^{2} - 4(12)(9)\)
\(36 - 432 = - 396\)
Since -396 is less than 0, there is no real roots. There is only complex roots.
Numerator 5 15 Denominator 8 ?
Answer:
5 15 means multiple
Step-by-step explanation:
=5×15÷8
=75÷8
=9.375
ratio furige it out
thank you so much
Answer:
2, 6, 8
6, 12, 18
2:6, 6:12, 8:18
A car travels 198 miles in 3 hours. Assuming that the distance varies directly with the time, how far will the car travel in 5 hours
Answer:
330 miles
Step-by-step explanation:
198/3 = 66; this shows how fast the car is going per hour
66 * 5 = 330; this is how far the car goes in 5 hours
After going shopping we had 10% of our money left we spent 180 $ how much money did we have left
Answer:
$18 :)
Step-by-step explanation:
10% of 180 is 18
If g(x) = 3x - 4, what is the value of g-¹ (g(13))?
Answer:
\(g^-1(g(13)) = 13\)
Step-by-step explanation:
Step 1: Solve g(13)
g(13) = 3(13) - 4
g(13) = 35
Step 2: Solve \(g^-1(35)\)
g^-1(35) = 35 = 3x - 4
39 = 3x
x = 13
IQ scores are normally distributed with a mean of 100 and a standard deviation of 15.
Out of a randomly selected 3700 people from the population, how many of them
would have an IQ less than 66, to the nearest whole number?
A circle has diameter 12. What's the circumference?
a
24π
b
12π
c
36π
d
144π
Answer:
b. 12π
Step-by-step explanation:
C= 2πr
R= D/2= 12/2= 6
C= 2x3.14x6
2x6= 12
C= 12π
Given :-
diameter of circle = 12Then,
Radius will be circle= 12/2 = 6ExplanationUsing Formula
★Circumference of circle = 2πr
Keep Value
==> Circumference of circle = 2π × 6
==> Circumference of circle = 12π
Henceyour answer will be option number b.I NEED help with this ASAP
You work in Social Media as a consultant. You are working on a new report to examine trends in Social Media usage and age. You conducted a survey of 1072 people randomly selected in the United States (you limited minimum age to 12). The file "Usagef.xlsx" has results of the survey. For each Social Media platform you have a 0/1 variable indicating whether or not the person said they used the platform in the last 6 months. For each of those variables, 1 means the person did use the platform in the last 6 months and 0 means they did not. You also have the age of each respondent calculated based on birth date (so 43.56 means the individual is 43.56 years old). There are two additional variables:
Young adult: 1=respondent is under 35; 0=respondent is 35 or over.
Platforms Used: The total number of Social Media platforms used in the last 6 months.
Please use this information and the data in the excel spreadsheet "Usagef.xlsx" to answer the following questions:
Assuming the sample is a random sample of the U.S. population, what is the upper bound of the 95% confidence interval for the average age in the U.S?
The upper bound of the 95% confidence interval for the average age in the U.S. is 48.29 years.
To determine the upper bound of the 95% confidence interval for the average age in the U.S., we can use the sample data from the survey. The sample size is 1072 people, randomly selected from the U.S. population, with a minimum age of 12. By calculating the average age of the respondents, we can estimate the average age of the entire U.S. population.
Using the given information that the average age of the respondents is 43.56 years, and assuming that the sample is representative of the population, we can calculate the standard error. The standard error measures the variability of the sample mean and indicates how much the sample mean might deviate from the population mean.
Using statistical methods, we can calculate the standard error and construct a confidence interval around the sample mean. The upper bound of the 95% confidence interval represents the highest plausible value for the population average age based on the sample data.
Therefore, based on the provided information and calculations, the upper bound of the 95% confidence interval for the average age in the U.S. is 48.29 years.
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Show that the equation x ^ 3 + 6x - 10 = 0 has a solution between x = 1 and x = 2
what is the meaning of "two-way association" in parametric models?
In parametric models, "two-way association" refers to the relationship between two variables where each variable has an influence on the other. It implies that changes in one variable affect the other, and vice versa.
In parametric models, two-way association is characterized by a mutual dependency between the variables. This means that the values of both variables are determined by each other rather than being independent. The association can be described in terms of a mathematical equation or model that represents the relationship between the variables.
For example, in a regression model, if we have two variables X and Y, a two-way association implies that changes in X will cause corresponding changes in Y, and changes in Y will cause corresponding changes in X. This indicates a bidirectional relationship where both variables influence each other. Two-way associations are important in understanding and analyzing complex systems and can provide insights into causal relationships and interactions between variables.
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a manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 433 gram setting. it is believed that the machine is underfilling or overfilling the bags. a 301 bag sample had a mean of 431 grams with a variance of 324 . assume the population is normally distributed. a level of significance of 0.02 will be used. specify the type of hypothesis test.
The type of hypothesis test to be used in this scenario is a one-sample t-test with a two-tailed alternative hypothesis.
The problem is asking to conduct a hypothesis test to determine whether the bag filling machine works correctly at the 433 gram setting.
The hypothesis test would involve a null hypothesis (H0) and an alternative hypothesis (Ha).
The null hypothesis is typically the hypothesis of "no effect" or "no difference" and is denoted as H0. In this case, the null hypothesis would be that the mean weight of potato chips in the bags filled by the machine at the 433 gram setting is equal to 433 grams. Therefore, the null hypothesis would be:
H0: μ = 433
The alternative hypothesis (Ha) is the hypothesis that we want to test, and it is denoted as Ha. In this case, the alternative hypothesis would be that the mean weight of potato chips in the bags filled by the machine at the 433 gram setting is not equal to 433 grams. Therefore, the alternative hypothesis would be:
Ha: μ ≠ 433
To conduct the hypothesis test, we would need to calculate the test statistic and compare it to the critical value. Since the sample size is large (n=301) and the population variance is unknown, we would use a t-test with a level of significance of 0.02.
If the calculated t-value falls outside the critical t-value, we would reject the null hypothesis and conclude that the bag filling machine does not work correctly at the 433 gram setting.
If the calculated t-value falls within the critical t-value, we would fail to reject the null hypothesis and conclude that there is not enough evidence to suggest that the bag filling machine does not work correctly at the 433 gram setting.
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A car moving at a constant speed passed a timing device at t=0. After 6 seconds, the car has traveled 666 ft. Write a linear function rule to model the distance in feet d the car has traveled any number of seconds t after passing the timing device?
A linear function model to show the distance traveled by the car is
d = 111t
How to write the liner function modelA linear function consists of functions where the variables has exponents of 1.
The graph of linear functions is a straight line graph and the relationship is expressed in the form.
y = mx + c
definition of variable to suit the problem
y = output variable, distance, d
m = slope, speed in ft/s
x = input variable, time
c = y intercept, distance at t = 0
The equation as described in the problem is represented using linear function as as follows
speed of car = distance / time
= 666 / 6
= 111 ft/s (this is equivalent to the slope)
at t = 0 distance = 0 hence c = 0
distance, d in feet = 111t, in seconds
d = 111t
the linear model is d = 111t
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The expression 9+5(3+y) is simplified in several steps below.
For each step, choose the reason that best justifies it.
Step
9 + 5(3 + y)
9 + 15 + 5y
24 + 5y
5y + 24
Reason
Given expression
Choose one
Choose one
Choose one
X
S
According to the distributive property of algebraic expressions, each term in an expression's sum or difference must be multiplied by a number outside of the parenthesis. A number is used as the value outside of the parenthesis, with the total or difference.
What is the use of distributive property in the expression?By employing the distributive property of multiplication in step 2, we can reduce the expression by multiplying 5 by both 3 and y. So, our total is \(9 + 15 + 5y\) .
In step 3, we use the commutative characteristic of addition to reorder the terms in the phrase. We now have \(15 + 9 + 5y,\) which equals \(24 + 5y\) .
Step 4 involves applying the commutative property of addition to rearrange the equation's terms once more. This leads to the final simplified formulation, which is \(5y + 24\) .
Therefore, The justification offered in step 1 is provided expression because it is the first expression provided and doesn't need to be further explained.
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quality control for many products involves breaking, destroying, or wearing out a number of the products in order to see exactly what it takes to make the product stop working. suppose that, for one product, 98% of all the units made at a particular factory can hold at least 400 lbs. of weight before breaking. to check the product, quality control selects a random sample of 300 units made at the factory and determines whether or not the product can hold at least 400 lbs. of weight before breaking. what is the probability that the randomly selected sample will have less than 97.5% of the units that can hold at least 400 lbs. of weight before breaking?
The probability that the randomly selected sample will have less than 97.5% of the units that can hold at least 400 lbs of weight before breaking is 2.4249.
What is the binomial distribution?
In probability theory and statistics, the discrete probability distribution of the number of successes in a series of n separate experiments, each asking a yes-or-no question and each with its own Boolean-valued outcome: success or failure, is known as the binomial distribution with parameters n and p.
Here, we have
Given: For one product, 98% of all the units made at a particular factory can hold at least 400 lbs. of weight before breaking to check the product, quality control selects a random sample of 300 units made at the factory and determines whether or not the product can hold at least 400 lbs.
p = 0.98
q = 1 - p = 1 - 0.98 = 0.02
n = 300
Using the binomial distribution,
Standard deviation = σ = √npq = √300 × 0.98 × 0.02 = 2.4249
Standard deviation = σ = 2.4249
Hence, the probability that the randomly selected sample will have less than 97.5% of the units that can hold at least 400 lbs of weight before breaking is 2.4249.
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Someone explain please
Answer:
SA = 94 ft²
Step-by-step explanation:
To find the surface area of a rectangular prism, you can use the equation:
SA = 2 ( wl + hl + hw )
SA = surface area of rectangular prism
l = length
w = width
h = height
In the image, we are given the following information:
l = 4
w = 5
h = 3
Now, let's plug in the information given to us to solve for surface area:
SA = 2 ( wl + hl + hw)
SA = 2 ( 5(4) + 3(4) + 3(5) )
SA = 2 ( 20 + 12 + 15 )
SA = 2 ( 47 )
SA = 94 ft²
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4(х +Зу) = 2(3х-y)
Solve for x
Answer:
7y
Step-by-step explanation:
use distributive property:
4x+12y=6x-2y
2x=14y
x=7y