Given:
Making 8 per hours babysitting
Making 18 per hours lifegaurding.
Earn no less then $180
Work nno more then 16 hours:
Find: Value of "x" and "y"
Sol:.
No more work in 16 hours then:
\(x+y\le16\)Earn no less then 180
\(8x+18y\ge180\)Inequality in graphical form:
One possible is :
Value of "x" is:10.8
Value of "y" is : 5.2
Find f(g(3)) and g(f(-2)).
f(x)=x²-1 and g(x)=2x-3
Answer:
1. 8
2. 3
Step-by-step explanation:
\(f(g(3)) \\= f(2(3)-3))\\=f(3)\\=3^2-1\\= 9-1\\=8\\\\g(f(-2))\\= g((-2)^2-1)\\=g(4-1)\\=g(3)\\=2*3-3\\=3\)
finding the slope (simplest form)
Answer:
m=3, y = 3x - 2
Step-by-step explanation:
slope = rise / run
slope = 6/2
slope = 3
Answer:
The slope is 3.
Step-by-step explanation:
Slope is equal to rise over run. Let’s take a look at the points given to us on the graph.
To go from the leftmost point to the rightmost point, we rise (go up) 6 units, and then we run over (go right) 2 units. So we have:
Slope = Rise/run = 6/2
Now 6/2 is equal to 3, and that’s the slope.
3. Astronaut Bob is standing on a platform 3 meters above the moon's surface and throws a rock directly upward with an initial velocity of 16 m/s. The acceleration due to gravity on the moon's surface is 1.6 m/s2. (a) After how many seconds does the rock reach its highest point? (b) After how many seconds does the rock fall back onto the moon surface? (Assume the platform and the astronaut have moved away after throwing the rock.)
The rate of change of velocity with respect to time is known as acceleration.
(a). After 10 second, rock will reach at its highest point.
(b). After 20.1875 second, rock fall back onto the moon surface.
Given data are, initial velocity(u) = 16 m/s , acceleration\((g)=1.6 m/s^{2}\)
(a)Relation between initial velocity (u) and final velocity(v) and acceleration,
\(v = u - gt\)
When rock reaches at its highest point. Then velocity (v) = 0
Substituting all values in above equation.
\(0 = 16 - (1.6)t\)
\(t = 16/1.6\)
\(t = 10 second.\)
(b) Since, Astronaut Bob is standing on a platform 3 meters above the moon's surface .
So, time taken by rock to fall back onto moon surface is ,
\(t = 10 + 10 + 3/16\)
t = 20.1875 second.
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15. Kate has 63 pens. She gives all the pens to her 9 friends. Each friend gets
the same number of pens.
Kate said that when she divided the number of pens that each friend got by 9,
the answer was equal to 63. Her friend Margo said that when the number of
pens each friend got was multiplied by 9, the answer was equal to 63.
Which girl is correct? Explain your answer. I will mark as brainlist and vote if you answer
The girl which is correct between kate and her friend Margo is Margo.
The correct answer option is option B
How to multiply?Number of pens Kate has = 63Number of Kate's friends = 9If each friend gets the same number of pens;
Number of pens each friend get = Number of pens Kate has / Number of Kate's friends
= 63 / 9
= 7
Check:
Number of pens each friend get × Number of Kate's friends = Number of pens Kate has
7 × 9 = 63
Therefore, Kate's friend, Margo is correct.
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Find an expression for the n-th term (t_(n)) in each sequence.
A). 1,(1)/(2),(1)/(3),(1)/(4),(1)/(5),(1)/(6),...
B). 3,9,15,21,27,....
Answer:
A) (1)/(7)
B) 33
Step-by-step explanation:
For (A), the sequence follows in 1 divided by numbers in a consecutive order, therefore after (1)/(6), the next term is (1)/(7)
For(B), the sequence follows in multiples of three but skips one in between
Example: Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36...
In the sequence, 6, 12, 18 and 24 are skipped, meaning that the next number to be skipped is 30, hence 33 is the next number in the sequence.
Because all the numbers in the sequence are odd numbers we can say that the sequence follows in odd consecutive numbers which are multiples of 3.
I'm stuck on this question, please help.
Answer: According to Islamic theology, God has no body or gender (neither male nor female), and there is absolutely nothing like Him in any way whatsoever.
Step-by-step explanation:
On the Y axis we have the profit from the trucking company and on the X axis we have the miles the truck has traveled. The company decided that they needed to start paying for a driver at a price of 0.25 cents a mile. After this change what will happen to the x and y axis/slope?
A. Y intercept will be less and X will be less
B. Y intercept will be less and X intercept will be greater
C. Y intercept will be greater and X will be greater
D. Y intercept will be greater and X will be less
Therefore, the correct answer is A. Y intercept will be less and X will be less.
What is graph?A graph is a visual representation of data that shows the relationship between two or more variables. Graphs are commonly used to display information in a way that is easy to interpret and analyze. They are often used in fields such as science, mathematics, economics, and engineering to help illustrate and explain complex data.
Here,
The introduction of a cost of 0.25 cents per mile for the driver would be an additional expense for the trucking company, and would affect their profit. This means that the profit values (on the y-axis) would decrease for each point on the graph. However, the miles traveled (on the x-axis) would remain the same as the cost of the driver is proportional to the distance traveled.
Therefore, the y-intercept of the graph (the profit when the truck has traveled zero miles) would be less than it was before, because the trucking company has a new cost that reduces their overall profit. However, the x-intercept (the point where the profit is zero) would remain the same, as this point is determined solely by the revenue and cost of the trucking company.
The slope of the graph would also be affected, as the profit now decreases at a faster rate as the miles traveled increase. The new slope would depend on the specific values of the revenue, costs, and driver expenses for the trucking company, but in general, it would be steeper than before.
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\(\left|16x\right|\le 8\)
Please help me with this, and thank you.
Answer:
-1/2 ≤ x ≤ 1/2 or x∈ [- 1/2, 1/2]Step-by-step explanation:
|16x| ≤ 8|16x/16| ≤ 8/16|x| ≤ 1/2x ≤ 1/2 or x ≥ - 1/2Combination of two inequalities above:
-1/2 ≤ x ≤ 1/2Or interval notation:
x∈ [- 1/2, 1/2]A researcher is studying the growth of bacteria.
He starts with 320 of the bacteria. It grows
continuously at a rate of 4% per hour. How
many bacteria will there be in 17 hours?
(Round to the nearest integer if necessary)
136000 many bacteria will there be in 17 hours at a rate of 4 percentage per hour.
What is an example of a percentage?
Since one percent (symbolized as 1%) is equal to one hundredth of something, 100 percent stands for everything, and 200 percent refers to twice the amount specified. As an illustration, 1% of 1,000 chickens is equal to 1/100 of 1,000, or 10 birds, and 20% of the quantity is equal to 20% of 1,000, or 200.given ,
rate = 4%
bacteria starts growing = 320
rate = 4%
4% = 320
1 = \(\frac{320 * 100}{4} = 8000\)
bacteria will there be in 17 hours = 17 × 8000
= 136000
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Can someone help me with number 9 pllsssss I’m confused
Answer:
C
Step-by-step explanation:
2.1, 1.4, 0.7, 0, ...
An airplane flies at an elevation of 500 feet above sea level. A whale swims the same distance below sea level, what number represents the elevation of a whale?
Answer:
500 below because you just do the opposite
The daily water consumption for an Ohio community is normally distributed with a mean consumption of 519,645 gallons and a standard deviation of 71,564 gallons. The community water system will experience a noticeable drop in water pressure when the daily water consumption exceeds 782,238 gallons. What is the probability of experiencing such a drop in water pressure
Answer:
0.0001
Step-by-step explanation:
The computation of the probability of experiencing such a drop in water pressure is shown below:
Given that
mean = 519,645 gallons
Standard deviation = 71,564 gallons
Now the probability is
= 1 - p (x - mean ÷ standard deviation < 782,238 - 519,645 ÷ 71,564)
= 1 - p(z<3.67)
= 1 - 0.9999
= 0.0001
I need this by today i have a test in 15 minute please help i don’t know the answer
Answer:
Reflection over the y-axis and a translation right by 2
Step-by-step explanation:
The table below represents favorite ice cream of the freshman and sophomores at
Eastern High School.
What is the approximate probability that a student's favorite is oreo ice cream?
Answer: 43%,
Step-by-step explanation:
i did it in my search bar but its just 112 percent of 378 which is 43
The difference between the circumference and the diameter of a circle is 90cm. Find the radius
Answer:
Step-by-step explanation:
Circumference is 2πr - 2r = 90cm
2r(π-1)=90
divide both sides by (π-1)
2r = 90/(π-1)
2r = 42.024...
r = 21.012399 cm
What is MEAN ABSOLUTE DEVIATION and how do you find it?
Step-by-step explanation:
Step 1: Calculate the mean. Step 2: Calculate how far away each data point is from the mean using positive distances. These are called absolute deviations. Step 3: Add those deviations together. Step 4: Divide the sum by the number of data points.
At a supermarket, there are 118 customers. If 45 have purchased shirts, 59 have
purchased pants, and 40 have purchased neither, how many purchased both shirts and
pants?
Using the Venn Diagram principles, the number of customers at the supermarket who purchased both shirts and pants is 26.
What is a Venn Diagram?A Venn Diagram shows a pictorial or graphical representation of the relationship (similarities and differences) between data sets.
In a Venn Diagram, overlapping circles or other shapes can be used to depict the logical relationships between two or more data sets or items.
The total number of customers at a supermarket = 118
The number of customers who purchased shirts, n(A) = 45
The number of customers who purchased pants, n(B) = 59
The number of customers who purchased neither shirts nor pants = 40
Let the number of customers who purchased both shirts and pants = n(A ∩ B)
n(A ∪ B) = n(A) + n(B) - n(A ∩ B)
n(A) = 45 n(B) = 59 n(A ∪ B) = 118 - 40 = 78
Substituting values:
78 = 45 + 59 - n(A ∩ B)
Solving for n(A ∩ B), we get:
n(A ∩ B) = 45 + 59 - 78 n(A ∩ B) = 26
Thus, using the formula of Venn Diagram, we can conclude that at this supermarket with 118 customers, 26 customers purchased both shirts and pants.
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(7 x 4) x 3 = 3 x (4 x 7)
which property is used
a) commutative
b) assositative
c) identity
d) distributive
Answer:
b) associative
Step-by-step explanation:
The associative property of multiplication was used to change the position of the parentheses
Decide if each statement correctly describes a relationship between the categories.
Choose Yes or No for each statement.
Answer:
1.no,2.yes 3.yes 4.no
Step-by-step explanation:
rhombuses are subcategories of squares. some isosceles triangles have angles more than 90 degrees or 90 degrees exact
Alan is growing carrots, parsnips and turnips. He has grown h carrots, 2h parsnips and 5 turnips. In total he has grown 11 vegetables. What is the value of H?
Hello !
Answer:
\( \boxed{h = 6}\)
Step-by-step explanation:
He has grown :
h carrots2h parsnips5 turnipsWe also know that in total, he has grown 11 vegetables.
We will have to solve an equation !
\(h + 2h + 5 = 11\)
\( \iff3h + 5 = 11\)
We want to isolate h.
\(3h + 5 - 5= 11 - 5 \\ \iff3h = 6 \\ \iff \frac{3h}{3} = \frac{6}{3} = 2\)
The value of h is 2.
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PLEASE HELP ITS DUE HELP
Show
Substitution
Decomposition
simplifying by order of operations
When 'n' is substituted into the expression, the simplification of the above polynomial would be = 12
Calculation using substitution methodThe given expression is ;
n²-3n + 8
Given that n = 4
Substitute 4 into the equation,
= 4²-3(4) + 8
= 16 - 12 + 8
= 16- 4
= 12
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x = 8 is a solution for the equation x/2 = 4
Answer:
x = 8 is a solution for the equation
B) What is the cost of making 35 items?
And c. The domain
The cost of making 35 items is 1100 and the domain is (-∞,∞)
The cost of making 35 items :
x = 35plug the value into the cost equation
C(35) = 10(35) + 800
C(35) = 350 + 800
C(35) = 1100
Hence, cost of making 35 items is 1100
The domain of the functionSince the value of X can be any real number, we can plug in any real number for x and get a real number output.
Hence, the domain = (-∞,∞)
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Olivia typed 2 pages in 12 minutes. How long will it take her to type 10 pages at this rate?
Answer:
60
Step-by-step explanation:
If Olivia typed 2 pages in 12 minutes, this means that she can type 1 page in 6 minutes. Since we're looking for the amount of time it would take her to type 10 pages, we multiply 6 by 10 to get 60.
Answer:
60 minutes
Step-by-step explanation:
if Olivia writes 2 pages in 12 minutes that means she writes 1 page in 6 minutes. 6 minutes per page times 10 pages equals 60 minutes for 10 pages.
If Fran were to paint her living room alone, it would take 6 hours. Her sister Denise could do the job in 8 hours. How many hours would it take them working together? Express your answer as a fraction reduced to lowest terms, if needed.
It would take Fran and Denise (working together) approximately \(\frac{24}{7}\) hours to paint the living room.
To solve this problem, we can use the concept of "work rates."
Let's find out how much work Fran and Denise can do individually in one hour.
If Fran takes 6 hours to paint the living room alone, her work rate is \(\frac{1}{6}\) of the room per hour \((\frac{1 room}{6 hours } = \frac{1}{6}room/hour )\).
Similarly, if Denise takes 8 hours to paint the living room alone, her work rate is \(\frac{1}{8}\) of the room per hour \((\frac{1 room}{8 hours } =\frac{1}{8}room/hour )\).
When they work together, their work rates are additive.
So, their combined work rate would be:
\(\frac{1}{6} room/hour+\frac{1}{8} room/hour\)
\(=(\frac{4}{24} )room/hour + (\frac{3}{24} )room/hour\)
\(=\frac{7}{24} room/hour\)
This means that working together, Fran and Denise can paint \(\frac{7}{24}\) of the living room in one hour.
To determine the total time required for them to paint the entire room, we can invert their combined work rate:
\(\frac{(1 room) }{(\frac{7}{24}room/hour) } =\frac{24}{7}hour\)
Therefore, it would take Fran and Denise (working together) approximately \(\frac{24}{7}\) hours to paint the living room.
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1. The wolves were either howling of growling. If the ratio of the number of howlers to the number of growlers was 8 to 3 and
Observed, how many were growling?
The number of Wolves are growling is in multiple of 3.
What is the ratio?Comparing two amounts of the same units and determining the ratio tells us how much of one quantity is in the other. Two categories can be used to categorize ratios. Part to whole ratio is one, and part to part ratio is the other. The part-to-part ratio shows the relationship between two separate entities or groupings.
Given The wolves were either howling of growling,
and ratio of the number of howlers to the number of growlers is
8:3 = 8/3
since the ratio tells about the total number of wolves either howling of growling,
let total Wolves be y
so y = 8x + 3x
where x is the common multiple for both,
so growling wolves are in multiple of 3.
Hence growling wolves are in multiple of 3.
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if you can answer correctly I will cash app you my cash app is cathackley
Answer:
yo i know the answer its 5$ for me to help
Step-by-step explanation:
Solve the Equation.
91 = A - 45
Please help me w this
The solution of the given algebraic expression is: ⁷/₁₂ + ⁴/₆q
How to solve Algebraic Expressions?We are given the algebraic expression as:
¹¹/₁₂ - ¹/₆q + ⁵/₆q - ¹/₃
Combining Like terms gives us:
(¹¹/₁₂ - ¹/₃) + (⁵/₆q - ¹/₆q)
Solving both brackets individually gives us:
((11 - 4)/12) + ⁴/₆q
= ⁷/₁₂ + ⁴/₆q
Thus, we conclude that is the solution of the given algebraic expression problem
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