Answer: Let's call the number of hours worked h.
The cost of hiring Carmony is $255 + $85h.
The cost of hiring Holliday is $115h.
We want to find the number of hours h such that $255 + $85h is less than $115h.
We can write this as:
$255 + $85h < $115h
Subtracting $115h from both sides:
$255 < $115h - $85h
Combining like terms:
$255 < $30h
Dividing both sides by $30:
8.5 < h
So, it is cheaper to hire Carmony for more than 8.5 hours. For 8.5 hours or less, it is cheaper to hire Holliday.
Step-by-step explanation:
need help pls ty
Vincent and Joaquin are eating a snack. They spent a total of 24 dollars buying juice and tornados. Each juice cost 5 dollars and each tornado cost 3 dollars. They spent 4 minutes drinking each juice and spent 2 minutes per tornado. It took them 30 minutes to finish their snacks. Define your variables and write your equations.
Write your variables.
Write down your equations.
Solve and check.
The juice is 27 and the tornadoes are 21.
What is the equation?An equation is a mathematical statement that shows that two expressions are equal by using an equal sign (=). Equations are used to find the value of an unknown variable or to show the relationship between variables.
We know that the number of the juice and the tornadoes can be x and y
We then have that;
5x + 3y = 24 ----- (1)
4x + 2y = 30 ----- (2)
Multiply equation 1 by 4 and equation 2 by 5 we have that;
20x + 12y = 96 ---- (3)
20x + 10y = 150 ----- (4)
Subtract (3) from (4)
-2y =54
y = -27
Then;
5x + 3(-27) = 24
x = 21
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3x-2y<6 in slope intercept form
Answer:
y=-3/2+3
Step-by-step explanation:
so you have to solve for y
Find CD.
4.5
5.3
5.5
6.3
Answer:
(d) 6.3
Step-by-step explanation:
You want the measure of side CD in ∆CDE ~ ∆CFG with CG=6, GE=2.4, and FD=1.8.
ProportionThe corresponding sides of the two triangles are proportional:
CD/CE = FD/GE
CD = CE×FD/GE = (6+2.4)×1.8/2.4
CD = 6.3
__
Additional comment
Lengths on segment CD are 3/4 of those on segment CE, so CF = 4.5. CD is the sum of CF and FD: 4.5 +1.8 = 6.3.
Question 4(Multiple Choice Worth 2 points)
(Circumference LC)
What is the circumference of the circle? Use 3.14 for TT.
Answer:
A. 12 TT
B. 6 TT
C. 9 TT
D. 18 TT
The correct answer is D. 18 TT. The formula for circumference is C = 2TT x radius, so with TT equal to 3.14, the circumference of the circle is 18.28 TT which is approximately equal to 18 TT.
Sami invests £400 for 2 years at 5% per year simple interest. Work out the total interest Sami gets.
[tex]~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \pounds 400\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=years\dotfill &2 \end{cases} \\\\\\ I = (400)(0.05)(2) \implies I = 40[/tex]
A color printer prints 41 pages in 12 minutes. How many minutes does it take per page?
Answer:
3.41
Step-by-step explanation:
41/12
suppose that in a barn, there is a cow, a horse, a pig, and a goat. if two of the animals leave the barn, what is the probability that one of them is the goat?
Answer:
50% or 1/2
Step-by-step explanation:
Because there are 4 animals in the barn, if two animals leave (out of 4), then there are 50% of the animals in the barn and 50% of the animals leaving the barn.
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A fish swims a distance of 6 km in 5 minutes. What is the average speed in m/s
Answer:
Step-by-step explanation:
6 km = 6000 m
5 min = 300 s
6000m / 300s = 20 m/s
Answer:
20 m/s
Step-by-step explanation:
The average speed of the fish can be calculated by dividing the distance traveled by the time taken.
First, we need to convert the distance from km to meters:
6 km = 6,000 meters
Next, we need to convert the time from minutes to seconds:
5 minutes = 5 × 60 = 300 seconds
Finally, we divide the distance traveled by the time taken:
Average speed = 6000 meters / 300 seconds = 20 m/s
So, the average speed of the fish is 20 m/s.
Help asap ? Need to be turned in by end of class aka 8:40
Answer:
All the answers are bolded in the step-by-step explanation.
Hope it helps :)
Step-by-step explanation:
The radius of the top of a cylinder is always the same length as the radius of the base of a cylinder.
Radius of the base of can A: 10 cm
Radius of the base of can B: 18 cm
To find the area of the bases, use the area formula that you put as your first answer.
Area of the base of can A:
[tex]A=\pi (10^{2} )[/tex]
[tex]A=100\pi[/tex]
[tex]A=314[/tex] cm (Assuming we're only using 3.14 and not any other decimals)
Area of the base of can B:
[tex]A=\pi (18^{2} )[/tex]
[tex]A=324\pi[/tex]
[tex]A=1017.36[/tex] cm (Again, assuming we're only using 3.14 and not any other decimals)
The base of can B has a greater Area
To find the height, look at the diagram
Height of can A: 28cm
Height of can B: 9cm
Can A has a greater height
To find the volume, use the equation that you put as your answer for question 2 or just multiply the area of the base times the height.
Volume of can A:
[tex]314*28=V[/tex]
[tex]V=8792[/tex]
Volume of can B:
[tex]1017.36*9=V[/tex]
[tex]V=9156.24[/tex]
Can B holds more paint
what is the probability that at least two of the faces match when you roll three fair six-sided dice? express your answer as a common fraction.
The probability that we get the same faces when we roll 3 fair six-faced dice is 44.44%.
What is probability?Simply put, the probability is the likelihood that something will occur.
We can discuss the likelihood of several outcomes or the potential of one outcome when we are unsure of how something will turn out.
Statistics is the study of events that fall into a probability distribution.
Therefore, there is a chance that each one is unique:
6/6 * 5/6 * 4/6 = 120/216
Therefore, the likelihood that at least two of them will display the same face is:
1 - 120/216 = 96 / 216 =44.44%
Therefore, the probability that we get the same faces when we roll 3 fair six-faced dice is 44.44%.
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2) A music store is offering piano lessons for $78 per month. A piano book costs
$25. How many months of lessons could a student take if he had $649 to spend on
the lessons and book?
Variable:
means:
The student can take 8 months of lessons if he has $649 to spend on lessons and the book.
Describe Division?The arithmetic action of division is the opposite of multiplication. It is employed to determine how frequently one quantity is included within another. Divide the dividend by the divisor to execute a division, which can be represented with the division symbol () or a fraction bar (/). The outcome of division is the quotient, which shows how many times the dividend can be divided by the divisor. For instance, if you divide 8 apples into 4 equal portions, each portion would include 2 apples.
First, let's find the total cost of the lessons by multiplying the cost per month by the number of months:
$78/month × n months = $78n, where n is the number of months of lessons.
Next, we add the cost of the book to find the total cost:
$78n + $25 = $649.
Now, we can solve for n by subtracting the cost of the book from both sides of the equation:
$78n = $649 - $25 = $624.
Finally, we divide both sides of the equation by 78 to find the number of months of lessons:
n = $624 ÷ $78/month = 8 months.
So, the student can take 8 months of lessons if he has $649 to spend on lessons and the book.
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If a hypothesis test is performed and the null hypothesis is rejected in favor of the alternative hypothesis, does the test prove that the alternative hypothesis is correct? ExplainChoose the correct answer below.A.The test does not prove the alternative hypothesis correct, because only one test was done, and it takes at least β hypothesis tests to prove a claim about a population parameter.B.The test does not prove the alternative hypothesis correct, because of the possibility of rejecting the null hypothesis when the null hypothesis is true.C.The test proves the alternative hypothesis correct, because once the null hypothesis is rejected, the only possibility that remains is for the alternative hypothesis to be true.D.The test proves the alternative hypothesis correct, because it shows that all the evidence suggests that the alternative hypothesis is true.
The test does not prove the alternative hypothesis correct, because of the possibility of rejecting the null hypothesis when the null hypothesis is true.
The test does not prove the alternative hypothesis correct, because when performing a hypothesis test, the null hypothesis is rejected in favor of the alternative hypothesis. However, rejecting the null does not necessarily mean that the alternative hypothesis is true. It is possible for the null hypothesis to be rejected even when it is true, due to the occurrence of random fluctuations. Therefore, the test does not prove that the alternative hypothesis is correct, as there is always a possibility that the null hypothesis is true despite being rejected. To prove that the alternative hypothesis is correct, a series of hypothesis tests must be conducted to show that the population parameter is consistent with the alternative hypothesis.
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Which system(s) of linear equations has (have) (2,−1) as its (their) unique solution? Select the THREE (3) systems that apply. Responses
The system of linear equations that has an unique solution has this feature:
Different slopes.
Then we must replace into the equations the variables x = 2 and y = -1, and verify if the equations are satisfied.
How to obtain the number of solutions of a system of equations?The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which:
The slope m represents the rate of change of the linear function.The intercept b represents the initial amount.The number of solutions for a system of two linear functions is defined as follows:
Zero solutions: same slope and different intercept.One solution: different slopes.Infinite solutions: same slope and same intercept.More can be learned about linear functions at https://brainly.com/question/24808124
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Which angle measure is equivalent to 144°?
Find the ratio of 35 min to 1 hr tell me this question ans i have a test tommorow
Send help, I don’t understand
Answer: 8.9 and 6.7
Step-by-step explanation:
These are right triangles, so you can use the Pythagorean theorem, a² + b² = c², where a and b are the legs, or shorter sides, of the triangle and c is the hypotenuse, or the longest side.
1. 4² + 8² = c²
16 + 64 = c²
80 = c²
c = √80
c = 8.9
2. 6² + 3² = c²
36 + 9 = c²
45 = c²
c = √45
c = 6.7
Is it possible to form a triangle with side lengths , , and ? If so, will it be scalene, isosceles, or equilateral?A.Yes; scaleneB. Yes; isoscelesC. Yes; equilaterald. no
No. A triangle cannot be formed with side lengths of 2, 4, and 5. option (d)
The sum of the lengths of the two shorter sides (2 + 4 = 6) must be greater than the length of the longest side (5). This is known as the Triangle Inequality Theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In other words, to form a triangle, the sum of the lengths of the two shorter sides must be greater than the length of the longest side. In this case, the two shorter sides do not meet this requirement, so it is not possible to form a triangle with these side lengths.
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Complete Question:
Is it possible to form a triangle with side lengths 2, 4, and 5? If so, will it be scalene, isosceles, or equilateral?
A.Yes; scalene
B. Yes; isosceles
C. Yes; equilateral
d. no
The price for calculating the price to deliver a parcel of mass m kg is price ($) = 7 + 3.5m
What is the mass, in kg, of a parcel with a delivery price of $70?
Answer:
18 Kg
Step-by-step explanation:
We can use algebra to solve for the mass, m, given the delivery price, $70.
Starting with the formula:
price ($) = 7 + 3.5m
We can substitute $70 for price ($) and solve for m:
$70 = 7 + 3.5m
Subtracting 7 from both sides:
$63 = 3.5m
Dividing both sides by 3.5:
m = 18
Therefore, the mass of the parcel is 18 kg.
evaluate ( 6^2 - 4^2 ) x ( 1/4 )^2
The evaluation of expression is 5/4.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Given;
The expression; ( 6^2 - 4^2 ) x ( 1/4 )^2
=( 6^2 - 4^2 ) x ( 1/4 )^2
=(36-16)*(1/16)
=20*1/16
=5/4
Therefore, the algebraic expression answer will be 5/4.
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1+sin^2-cos^x / 2sin^2x =?
The simplified expression of 1+sin^2-cos^x / 2sin^2x issin^2(x) / 2(1 + cos(x)) + 1 / 2(1 - cos(x))
What is the simplified expressionTo simplify this expression, we can first simplify the numerator by combining the terms inside the parentheses:
1 + sin^2(x) - cos(x) = sin^2(x) + 1 - cos(x)
Next, we can factor the denominator trigonometric identity sin^2(x) + cos^2(x) = 1:
2 sin^2(x) = 2(1 - cos^2(x)) = 2 - 2cos^2(x)
Now we can substitute these simplified expressions into the original expression:
(1 + sin^2(x) - cos(x)) / (2 sin^2(x))
= (sin^2(x) + 1 - cos(x)) / (2 - 2cos^2(x))
= [(1 - cos(x)) + sin^2(x)] / [2(1 - cos(x))(1 + cos(x))]
1+sin^2-cos^x / 2sin^2x = [sin^2(x) / 2(1 + cos(x))] + [1 / 2(1 - cos(x))]
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Consider the function g(x)=x−4‾‾‾‾‾√3.
Which ordered pair lies on the inverse of the function?
the ordered pair will be (3,-1) lies in the inverse function.
What is inverse function?
A function that returns the initial value for which a function has produced output is called an inverse function. If f(x) is a function that produces the value y, then f-1(y), which is the inverse function of y, will produce the value x. Inverse and reciprocal functions should not be confused. The output's original value is returned by the function's inverse, which is represented by the symbol f-1 (x). While the reciprocal of a function is represented by 1/f(x) or f(x)-1
Those that do are referred to as invertible. For a function f: X Y to have an inverse, it must possess the characteristic that there is exactly one x in X such that f(x) = y for every y in Y. This characteristic guarantees the existence of a function g: Y X that has the required connection to f.
function g(x)=∛(x−4)
So the inverse of the function
g ¬(x) = x³+4
So the ordered pair will be (3,-1)
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true or false: of the range, the interquartile range, and the variance, the interquartile range is least influenced by an outlying value in the data set.
The interquartile range is least affected by an outlying value in the data set of the range, interquartile range, and variance is True.
Max to min value is the range. Range can substantially change if there are any outliers.
Since the threshold values for Q3 and Q1 are not outliers, the IQR won't change.
Outliers cause variance to be misinterpreted since they vastly increase variance.
Interquartile range:
You may determine the spread of the midpoint of your distribution using the interquartile range.
The interquartile range contains half of the values for any distribution that is ordered from low to high. The first 25% of values are found in the first quartile (Q1), while the last 25% are found in the fourth quartile (Q4).
The third quartile (Q3) less the first quartile (Q1) is the interquartile range (Q1). This provides us with the data set's middle half's range.
The interquartile range is calculated using only 2 values, much like the range. The IQR, however, is less impacted by outliers because the two values are more likely to be average scores because they are drawn from the middle of the data set.
The IQR provides a reliable indicator of variability for both skewed and normal distributions.
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Ella wants to learn how to hang glide. At "Hope You Live" hang gliding school, it is $140 deposit and $55 a lesson. At "Try Your Luck" hang gliding school, it is $60 deposit and $75 a lesson. At how many lessons would both schools be the same?
Answer:
4 Lessons
Step-by-step explanation:
55 * 4 = 220 + 140 = 360
75 * 4 = 300 + 60 = 360
Price per lesson, times number of lessons, plus deposit cost, equals total amount when the lessons will be the same price.
Hope this helps!
John bought 9. 25m of cloth for Php 425. 50. Find the cost price per metre. *
A. Php 26. 00
B. Php 36. 00
C. Php 46. 00
D. Php 56. 00
The cost price of cloth that John bought per meter is Php 46.00 (Option C). To find the cost price per meter, divide the total cost by the number of meters of cloth.
In this case, the total cost is Php 425.50 and the number of meters is 9.25. By dividing the total cost by the number of meters, we get Php 46.00 per meter. This means that John paid Php 46.00 for every meter of cloth he bought. This is the cost price per meter and it is option C, Php 46.00.
The specific value that corresponds to the unit price that was purchased is reflected in retail systems by the cost price. In some stock market theories, this value is used to determine the value of stock holdings, and it is used as a key factor in determining profitability.
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Astronomers often measure large distances using astronomical units (AU) where 1 AU is the average distance from Earth to the Sun. In the image, d represents the distance from a star to the Sun. Using a technique called "stellar parallax," astronomers determined 0 is 2°.
How far away is the star from the Sun in astronomical units? Show your reasoning.
The distance between the star from the Sun in astronomical units
is 28.6 AU.
What are trigonometric ratios in terms of a right-angle triangle?We know a right-angled triangle has three sides they are -: Hypotenuse,
Opposite and Adjacent.
We can remember SOH CAH TOA which is,
sin = opposite/hypotenuse, cos = adjecent/hypotenuse and
tan = opposite/adjacent.
From the reference angle of 2 degrees, d can be thought of as the adjacent side and the distance from the Sun and the Earth can be thought of as the opposite side.
Now, We know tan = opposite/adjacent.
tan2° = 1/d.
d = 1/0.035.
d = 28.6 AU.
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What do I put in the boxes? Please help this is due today
What is the quotient?
49 ÷ 3
This model describes the division calculation.
Answer:
See attached
Step-by-step explanation:
You want the numbers for quotient, dividend, and remainder in the area model of 49÷3.
Area modelThe number in each rectangle is its area, which is the product of the divisor on the left and the quotient at the top. These can be considered the length and width of the rectangle. The rectangle area is their product.
The remainder is put in the box at upper right. It is a value that is smaller than the divisor on the left.
The line at the bottom summarizes the division. The quotient is the sum of the quotient values at the top of the model, and the remainder is what's left over: the number that is too small to divide further.
a²-(b+c)²/
c²-(a-b)²
The expanded form of the expression [tex]\frac{a^2 - (b + c)^2}{c^2 - (a - b)^2}[/tex] is [tex]\frac{a^2 - b^2 - 2bc - c^2}{c^2 - a^2 + 2ab - b^2}[/tex].
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, An expression [tex]\frac{a^2 - (b + c)^2}{c^2 - (a - b)^2}[/tex].
We know, (a ± b)² = a² ± 2ab + b².
Therefore, [tex]\frac{a^2 - (b + c)^2}{c^2 - (a - b)^2}[/tex]
[tex]= \frac {a^2 - (b^2 + 2bc + c^2)}{c^2 - (a^2 - 2ab + b^2)}[/tex]
[tex]= \frac{a^2 - b^2 - 2bc - c^2}{c^2 - a^2 + 2ab - b^2}[/tex]
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Please help. I’m having some problems with this
The equation of the horizontal asymptote will be y = -2.
What is asymptote?An asymptote is a line that constantly reaches a given curve but does not touch at any infinite distance.
A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
From the graph, the horizontal asymptote is parallel to the x-axis and the equation of the horizontal asymptote is given as,
y = - 2
The equation of the horizontal asymptote will be y = -2.
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solution to 4d+9=21?
Answer:
d = 3
Step-by-step explanation:
4d+9=21
4d = 12
d = 3
Let's check
4(3) + 9 = 21
12 + 9 = 21
21 = 21
So, d = 3 is the correct answer.
Answer: 3 = d
Step-by-step explanation:
4d + 9 = 21
- 9 - 9
4d = 12
— —
4 4
d = 3
Lowest value of x x4 2 2 + + is
The lowest value of the equation is at x = -2 when (x + 2) = 0.
What is a quadratic function?A polynomial function with one or more variables, where the largest exponent of the variable is two, is referred to as a quadratic function. It is also known as the polynomial of degree 2 since the greatest degree term in a quadratic function is of the second degree.
Given the function,
x² + 4x + 2
to find the lowest value,
factorize the function,
x² + 4x + 2
add and subtract 4 from the function,
x² + 4x + 2 + 4 - 4
x² + 4x + 4 - 2
(x + 2)² - 2
here (x + 2)² is always positive,
and lower value will be x = -2 when (x + 2) = 0
Hence lowest value will be at x = -2.
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The correct question is,
Lowest value of x² + 4x + 2.