Answer:
492 - 508
Step-by-step explanation:
the dog can be 8 m ahead of megan = 492 m from home
the dog can be 8 m behind Megan = 508 m from home
x-500 = 8
x = 508 m
or - (x-500) = 8
-x + 500 = 8
-x = - 492
x = 492 m
A country's postal service will accept a package if its length plus its girth (the distance all the way around) does not exceed 84 inches. Find the dimensions and volume of the largest package with a square base that can be mailed.
Answer:
Dimensions: 18.667 x 18.667 x 14 inches
Volume: 4878.22 in3
Step-by-step explanation:
If the length plus the girth does not exceed 84 inches, we have:
\(length + (2*width+2*height) = 84\)
The box has a square base, to length = width, then we have:
\(length + (2*length+2*height) = 84\)
\(3*length+2*height = 84\)
The volume of the box is given by the equation:
\(Volume = length * width * height = length^2*height\)
From the first equation, we have:
\(height = (84 - 3*length)/2\)
Using this height in the volume equation, we have:
\(Volume = length^2*(84-3*length)/2\)
\(Volume = 42length^2-1.5*length^3\)
To find the maximum volume, we can find the value of length that makes the derivative of the volume in relation to the length equal zero:
\(dV/dl = 84length - 4.5*length^2 = 0\)
\(84length = 4.5*length^2\)
\(length = 84/4.5 = 18.667\ inches\)
So the width, the height and the volume of the package are:
\(width = length = 18.667\ inches\)
\(height = (84 - 3*18.667)/2 = 14\ inches\)
\(Volume = 42*(18.667)^2-1.5*(18.667)^3 = 4878.22\ in3\)
Question 1 of 10
Which expressions are equivalent to the one below? Check all that apply.
log 2-log 4
A. log(¹)
B. log 1
C. log(2) + log(¹)
D. log 2
"The correct option is C." The only expression that is equivalent to log 2 - log 4 is option C: log(2) + log(¹).
The expression "log 2 - log 4" can be simplified using logarithmic properties. Specifically, the property states that "log(a) - log(b) = log(a/b)." Applying this property to the given expression, we have "log 2 - log 4 = log(2/4) = log(1/2) = -log(2)."
The expression log 2 - log 4 can be simplified using logarithmic properties. Let's analyze each option:
A. log(¹): This expression is not equivalent to log 2 - log 4. The logarithm of 1 is 0, but it does not cancel out the terms log 2 and log 4.
B. log 1: This expression is equivalent to 0, but it does not cancel out the terms log 2 and log 4.
C. log(2) + log(¹): This expression is equivalent to log 2 + 0, which simplifies to just log 2. It is not equivalent to log 2 - log 4.
D. log 2: This expression is not equivalent to log 2 - log 4. It represents the logarithm of 2, but it does not account for the subtraction of log 4.
Option C, "log(2) + log(¹)," again uses an exponentiation notation without an exponent and is not a valid mathematical expression.
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TOUCHDOWN! While visiting the oldest city in the Badger State, Pro- fessor Ben Around watched his favorite football team score an exciting victory. Do you know what city the professor was visiting?
5 less than a number y is under 20.
Answer:
y - 5 < 20
y < 25
Step-by-step explanation:
y - 5 < 20
y < 25
Which statement best describes a strategy for estimating the perimeter of the figure below if the grid squares have
side lengths 1 cm?
Add the lengths of the horizontal and vertical segments, and then subtract 5 because the diagonal side is 4 units
wide and 2 units tall.
O Add the lengths of the horizontal and vertical segments, and then subtract 3 because the diagonal side is 4 units
wide but only 2 units tall.
O Add the lengths of the horizontal and vertical segments, and then add 3 because the diagonal side is 4 units wide
but only 2 units tall.
O Add the lengths of the horizontal and vertical segments, and then add 5 because the diagonal side is 4 units wide
and 2 units tall.
The best statement that describes the strategy for estimating the perimeter of the figure (please see the attached diagram) is the option;
Ad the lengths of the horizontal and vertical segments, and then add 5 because the diagonal side is 4 units wide and 2 units tall
What is an estimate of an amount?An estimate is an approximation of a true value, which is a value that is close to the actual value of the measured quantity.
Please find attached a diagram of the possible figure created with MS Word
The length of the side of the sides of the possible figure in the figure, obtained from a similar question on the internet are;
Base length = 5 units
Height = 4 units
The figure has a diagonal side which is 4 units wide and 2 units tall.
The length of the slant side, found using Pythagorean theorem can be obtained as follows; Length = √(4² + 2²) = 2·√5 ≈ 5
The correct option is therefore to add the lengths of the horizontal and vertical segments, and then add 5 because the diagonal side is 4 units wide and 2 units tall
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How high up is the branch on which the ladder is resting?
a 20 feet ladder with its base if 12 feet from the bottom of the tree.
From the figure above, we can form a right triangle with a hypotenuse of 20 and a leg of 12
Using pythagorean theorem.
\(c^2=a^2+b^2\)where a and b are the legs of the triangle and c is the hypotenuse.
\(\begin{gathered} 20^2=12^2+h^2 \\ 400=144+h^2^{} \\ h^2=400-144 \\ h^2=256 \\ h=\sqrt[]{256}=16 \end{gathered}\)The answer is h = 16 feet
Find the standard deviation of the sampling distribution of sample means using the given information. Round to one decimal place, if necessary. μ = 64 and o = 12; n = 9
The standard deviation of the data sample is 2.55.
What is the standard deviation of the data sample?The standard deviation of the data sample is calculated by applying the following formula;
S.D = √ (x - μ)²/(n - 1)
where;
μ is the mean of the distributionx is the sample datan is the number of sample dataThe given parameters;
mean, μ = 64
x, = 12
number of samples = 9
The standard deviation of the data sample is calculated as;
S.D = √ (12 - 64)²/(9 - 1)
S.D = 2.55
Thus, the standard deviation of the data sample is calculated by applying the formula for standard deviation.
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2. Amir's community center has an evening art class. He pays $5 every time he goes to the class. His cost, C(a), is given by C(a) = 5a, where a is the number of art classes Amir attends.
a. Identify the independent variable and tell what it represents.
b. Identify the dependent variable and tell what it represents.
Answer: a. The independent variable in the equation C(a) = 5a is a. It represents the number of art classes Amir attends.
b. The dependent variable in the equation C(a) = 5a is C(a). It represents the cost Amir incurs as he attends art classes. The dependent variable is dependent on the independent variable because the cost will change as the number of classes attended changes.
Which sentence can represent the inequality
Question 7
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>
The store is selling lemons at $0.43 each. Each lemon yields about 2 tablespoons of juice. How much
will it cost to buy enough lemons to make four 9-inch lemon pies, each requiring half a cup of lemon
juice?
Answer:
$6.88
Step-by-step explanation:
16Tbs. =1 cup,
4 pies =2 cups of lemon juice, so you need 32 Tbs. of lemon juice
32/2=16
16*0.43=$6.88
Answer: $ 6.88
Step-by-step explanation:
In one cup there is 16 tablespoons.
each lemon costs .43 and gives 2 tablespoons
Half a cup would give us 8 tablespoons = 4 lemons at the cost of 1.72
1.72 times 4 pies
Making the whole thing of 4 pies cost 6.88
Giving us the answer of 6.88.
(correct me if i'm wrong)
A bag contains 5 milk and 9 dark chocolates.
A sweet is selected at random.
What is the probability of choosing: P(milk)
Answer:
5/9
Step-by-step explanation:
Priya can bike 150 meters in 20 seconds. At this rate, how long would it take her to bike 3,000 meters? Complete the table to help determine the number of seconds.
Answer:
400 seconds
Step-by-step explanation:
150/20 m/s
vt = d
t=d/v
t = 3000m / (150/20m/s)
t = 400 sec
Leave a like and mark brainist if this helped
Sandy collected 10 pounds of apples at an apple orchard. She is determined to
eat 20% of the apples remaining every day after the day she went to the orchard.
Write an exponential function to model this scenario and use it to estimate how
many pounds of apples she has left after 1 week.
The weight of apple that Sandy has left after one week is 2.1 pounds.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Let y represent the number of apple remaining after x days. Sandy collected 10 pounds of apples at an apple orchard and eat 20% daily, hence:
y = 10(1 - 0.2)ˣ
y = 10(0.8)ˣ
After 1 week, x = 7:
y = 10(0.8)⁷ = 2.1 pounds
The weight of apple that Sandy has left after one week is 2.1 pounds.
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Gabriela has dinner at a café and the cost of her meal is $45.00. Because of the service, she wants to leave a 15% tip. What is the total cost of her meal?
Answer:
the answer is 51.75
Step-by-step explanation:
179=-9x+8
How do I break it down to slove this problem
Answer:
x = -19
Step-by-step explanation:
first isolate x by subtracting 8 on both sides:
179 = -9x + 8
-8 -8
=> 171 = -9x
then divide -9 on both sides to solve for x:
=> x = 171 ÷ -9 = -19
hope it helps ;)
Determine whether the two lines are parallel, perpendicular, coinciding, or only intersecting. y = - 2x + 7 6x + 3y = 1 Choose the correct answer below. coinciding O only intersecting O parallel O perpendicular
Answer:
Intersecting
Step-by-step explanation:
A cylinder has a radius of 4 millimeters. Its volume is 200.96 cubic millimeters. What is the height of the cylinder?
Answer:
3.999 millimeters.
Step-by-step explanation:
To find the height of the cylinder, we can use the formula for the volume of a cylinder:
V = πr²h
Given that the radius (r) of the cylinder is 4 millimeters and the volume (V) is 200.96 cubic millimeters, we can substitute these values into the formula and solve for the height (h).
200.96 = π(4²)h
200.96 = 16πh
To solve for h, we can divide both sides of the equation by 16π:
200.96 / (16π) = h
Using a calculator, we can calculate the approximate value of h:
h ≈ 200.96 / (16 × 3.14159)
h ≈ 3.999
Therefore, the height of the cylinder is approximately 3.999 millimeters.
help me with math plsssssssssssss
Determine whether the statement below is true or false. Justify the answer. Elementary row operations on an augmented matrix never change the solution set of the associated linear system. A. The statement is true. Each elementary row operation replaces a system with an equivalent system B. The statement is false. Interchanging two rows never changes the solution set of the associated linear system. However, replacing one row by the sum of itself and a multiple of another row can change the solution set of that system. C. The statement is false. Interchanging two rows never changes the solution set of the associated linear system. However, scaling a row by a nonzero constant can change the solution set of that system. D. The statement is true. Elementary row operations are always applied to an augmented matrix after the solution has been found.
Elementary row operations are always applied to an augmented matrix after the solution has been found. So the option D is correct.
Elementary row operations:
1. It is possible to convert a system of linear equations into an equivalent system, or into a new system of equations that has the same solutions as the original system, using these straightforward techniques.
2. In order to convert a matrix to row echelon form, Gaussian elimination is used.
3. Simple row operations on an augmented matrix never alter the underlying linear system's solution set.
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Simplify the ratio 0.40 to 0.60
The ratio 0.40 to 0/60 is equivalent to a simplified ratio..?
(Simplify your answer. Type a whole number or fraction)
The simplified firm of the ratio 0.40 to 0.60 is 2 : 3
Ratio0.40 : 0.60
= 0.40 / 0.60
divide both numerator and denominator by 0.20
= 2 / 3
= 2 : 3
Therefore, the simplified form of the ratio 0.40 to 0.60 is 2 : 3
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please answer this, FAST!! please!!!
Answer:$15.40
Step-by-step explanation:
19.
7
MTR
MODELING REAL LIFE The value of a mountain bike y (in dollars)
can be approximated by the model y 200(0.65)', where t is the
number of years since the bike was purchased. (See Example 2.)
=
a. Determine whether the model represents
exponential growth or exponential decay.
b. Identify the annual percent increase or decrease
in the value of the bike.
c. Estimate when the value of the bike will be $50.
C
The model y = 200(0.65)ⁿ represents exponential decay because the value of the bike decreases over time as t increases.
The value of the bike decreases by approximately 40.67% per year.
The value of the bike will be $50 approximately 5.2 years after it was purchased.
How to calculate the valuesa. A = Peⁿ = 200e⁻⁰.⁴³⁰⁷≈ 118.66
The value of the bike after one year is approximately $118.66.
b. percent decrease = (initial amount - final amount) / initial amount * 100%
percent decrease = (200 - 118.66) / 200 * 100% ≈ 40.67%
c. We can set y = 50 in the model and solve for t:
50 = 200(0.65)ⁿ
0.65ⁿ = 0.25
Taking the natural logarithm of both sides, we get:
ln(0.65ⁿ) = ln(0.25)
t ln(0.65) = ln(0.25)
t = ln(0.25) / ln(0.65) ≈ 5.20
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A neighborhood is trying to set up school carpools, but they need to determine the number of students who need to travel to the elementary school (ages 5-10), the middle school (ages 11-13), and the high school (ages 14-18). A histogram summarizes their findings:
Histogram titled Carpool, with Number of Children on the y axis and Age Groups on the x axis. Bar 1 is 5 to 10 years old and has a value of 3. Bar 2 is 11 to 13 years old and has a value of 7. Bar 3 is 14 to 18 years old and has a value of 4.
Which of the following data sets is represented in the histogram?
{3, 3, 3, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4}
{5, 10, 4, 11, 12, 13, 12, 13, 12, 11, 14, 14, 19, 18}
{5, 6, 5, 11, 12, 13, 12, 13, 14, 15, 11, 18, 17, 13}
{3, 5, 10, 11, 13, 7, 18, 14, 4}
The correct answer is that the data set {3, 7, 4} is represented in the given histogram.(option-a)
The given histogram represents the number of children in each age group who need to travel to school. Since the histogram has only three bars, we can conclude that there are only three age groups.
The first bar represents children aged 5-10, of which there are 3. The second bar represents children aged 11-13, of which there are 7. The third bar represents children aged 14-18, of which there are 4.
Therefore, the data set that is represented in the histogram is:
{3, 7, 4}
None of the other data sets given match the values in the histogram. The first data set has duplicate values and is not sorted by age group. The second data set includes ages that are not represented in the histogram. The third data set has values for ages 6, 11, 12, 13, 14, 15, 17, and 18, but the histogram does not have bars for all those ages. (option-a)
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What is the percent change from 310 to 155?
Answer: 50% decrease
Step-by-step explanation:
50% of 310 = 155
310-155=155
50% decrease :)
ANSWER: 50% decrease
SOLUTION:
50% of 310 = 155
310-155=155
So in all the answer is.......
50% decrease :)))))
-XOXOXO:)
PLEASE HELP I SUCK AT MATH
The answer to the question is B. \(y=4x\)
\(4(2)=8\\4(3)=12\\4(4)=16\\4(5)=20\)
A toy store received a shipment of 17 cases of teddy bears use compatible numbers to estimate the total number of teddy bears in the shipment. There are 12 bears per case.
Answer: The estimate is 200
Step-by-step explanation:
The exact amount would be 204 teddy bears, but you would it down to 200.
Find the unit rate (constant of proportionality) of the distance traveled.
Number of hours
0.25 1.5 2.5 3
Distance traveled (km) 3 18 30 36
Answer:
12.
Step-by-step explanation:
if to re-write the given condition, then
\(\frac{3}{0.25} =\frac{18}{1.5} =\frac{30}{2.5} =\frac{36}{3} ;\)
it is clear, the required constant is 12 (12 per hour).
If (4,y) is a solution to x-2y = 6, what is the value of y?
Answer:
(4, -1)
Step-by-step explanation:
(4, y) is a solution to x - 2y = 6.
Find the value of y:
\(4-2y=6\\\\4-4-2y=6-4\\\\-2y=2\\\\\frac{-2y=2}{-2}\\\\\boxed{y=-1}\)
The value of y is '-1'.
(4, -1) is a solution to the equation.
Hope this helps.
What is the distance between the points (7,5) (4,9)
The Distance will be 5.
The distance between two points is the length of the line segment connecting the two points on the plane. The formula for finding the distance between two points is usually d=√((x2 – x1)² + (y2 – y1)²). This formula is used to find the distance between any two points on the coordinate or x-y plane.
Let point (7,5) be A and point (4,9) be B
Distance formula =
Ab = √(x1- x2) ² + (y1 -y2) ²
Then Distance AB will be
Ab = √(7-4) ² + (5 -9) ²
= √ 3² + 4²
= √ 9 + 16
= 5
Hence the distance will be 5.
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The points \((7,5)\) \((4,9)\) are separated by a distance of \(5\) units.
The distance between the two points is given by the length of the segment between them.
The Distance Formula is a helpful tool for figuring out how far apart two points are when they are arbitrarily represented on a coordinate plane as points A\((x_{1},y_{1})\) and B\((x_{2},y_{2})\).
The Pythagorean Theorem is essentially the source of the Distance Formula. Calculating the right triangle's hypotenuse's length is the fundamental purpose of the distance formula.
Use the distance formula to get the distance between two places.
\(d = \sqrt{ (x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2} }\)
In the posted query,
\((x_{1},y_{1})=(7,5)\\\\(x_{2},y_{2})=(4,9)\)
Distance formula,
\(d = \sqrt{ (x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2} }\)
\(d = \sqrt{ (4-7)^{2} +(9-5)^{2} }\)
\(d = \sqrt{ (-3)^{2} +(4)^{2} }\)
\(d = \sqrt{ 9+16 }\)
\(d = \sqrt{ 25 }\)
\(d = 5\)
Therefore, the points \((7,5)\) \((4,9)\) are at a distance of \(5\) units.
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2 Question 3 3.1 The layout plan of the copy room at Hills Secondary is given below.
3.1 justify a reason whether or not copier is suitably placed in room (3)
Based on these considerations, it is necessary to assess the specific layout plan and the surrounding environment to determine whether the copier is suitably placed in room (3) at Hills Secondary.
To determine whether the copier is suitably placed in room (3) at Hills Secondary, we need to consider factors such as accessibility, noise, and convenience.
Firstly, we need to evaluate the accessibility of the copier in room (3). Is it easily accessible for all students and staff who need to use it? If the copier is located in a central position within the school or close to high-traffic areas, it would be considered suitable.
However, if it is tucked away in a corner or not easily visible, it may cause inconvenience and hinder access for users.
Secondly, we should consider noise levels. Copiers can be noisy machines, and if room (3) is located near classrooms or areas where students require a quiet environment, it may not be an ideal placement. Noise disturbances could disrupt learning activities and cause distractions.
Lastly, convenience plays an important role. Room (3) should be spacious enough to accommodate the copier and allow users to operate it comfortably. If the room is cramped or lacks proper ventilation, it may cause inconvenience for users and impact the overall workflow.
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