Answer:
X = 1 ; x = 7
Step-by-step explanation:
Given the equation:
s=10|x-4|+50
s = sound level in decibels ; x = number of measures of music played
Take away 50 from Both right hand and left hand side of the equation
Recall s = 80
80 - 50 = 10│x - 4│+ 50 - 50
30 = 10│x - 4│
To get rid of the absolute value sign, append ± to left hand side
± 30 = 10x - 40
Minimum value of x : - 30 + 40 = 10x ; 10 = 10x ; x = 1
Maximum value of x : 30 + 40 = 10x ; 70 = 10x ; x = 7
In the morning a group of hikers hiked 3 ½ miles, took a break, and then hiked another 2 ¾ miles. The group then stopped for lunch. In the afternoon, the group the hiked 4 ¼ miles, and took another break. How many more miles do they need if the whole trail is 14 miles long?
Answer:
3 2/4
Step-by-step explanation:
1/2 is equivalent to 2/4 so you add 3 2/4 + 2 3/4 and that = 6 1/4 and its simple math from there on, 6 1/4 + 4 1/4 = 10 2/4 finally 14 - 10 2/4 = 3 2/4
5.5 miles are left to cover.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
In the morning a group of hikers hiked 3 ½ miles
and then hiked another 2 ¾ miles. then group the hiked 4 ¼ miles.
Total miles to cover = 14 miles
So, number of miles to be driven
= 14 - ( 3 ½ + 2 ¾ + 4 ¼)
= 14 - ( 7/2 + 11/4 + 17/4)
= 14- (14/4 + 11/4 + 17/4)
= 64 - 42 / 4
= 22/4= 11/2
= 5.5 miles
Hence, 5.5 miles are left to cover.
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PLEASE HELP WILL GIVE BRAINLIEST
Answer:
Step-by-step explanation:
in tri ADC and tri BDC
∠ADC =∠BDC = 90
DC is common
AD = BD (given)
triangle ADC ≅ tri BDC by SAS congruency
hence AC = BC by CPCT ( congruent parts of congruent triangles)
hence, BC = 13
Answer:
13
Step-by-step explanation:
in a proof, you could say that since AD is congruent to BD, since that is given to you, and angle ACD is congruent to angle CDB since a perpendicular bisector makes both sides a right angle, and CD is congruent to CD, (I forgot the reasoning for this part). after this, you can assume that triangle ACD is congruent to triangle CDB. and that would mean AC is congruent to CB because of CPCTC (Corresponding Parts of Congruent Triangles are Congruent), which would then mean that since AC is 13, CB would be 13 as well.
what is the median of this data set? [1,2,3,4,5,81]
Answer: 3.5
Step-by-step explanation: Find the two middle numbers, 3&4, then add, 3+4=7, then divide by 2, 7/2 = 3.5, and now you have your median! 3.5!!
y = 1.6x + 48
Based on the equation, what is the approximate shoe size for a man having a height of 60 inches?
A. 7 1/2
B. 10 1/2
C. 12
D. 14
Answer:1
14
Step-by-step explanation:
substitue 60 into 1.6
y = 1.6(60) + 48
96 + 48
144
2
Barbra has a part-time lawn-mowing job. The table below shows the amount of money Barbra earned for different numbers of hours of work: Barbaras earnings from lawn mowing number of hours worked money earned (dollars) 5 40 6 48 56 part A: what are the missing numbers in the table? Show your work. (4 points) part b. Barbara also works Part time at a theme park. To the money she earns so 1:9.create a table to show the money earned by Barbara for 5,6 and 8 hours of work at the theme park (3 points) PartC: how many more dollars does Barbara ern working fat the theme park for 5 hours then mowing lawns for 5 hours? Show your work
Answer:
it isn't obvious from your problem statement where the missing numbers are in your table. We have assumed that Barbara charges the same hourly rate for all mowing jobs, so the red numbers were the ones that were missing.
Since we know our times-8 and times-9 times tables, all the work is mental. There is nothing to show. Each number in the Dollars column is 8 times the number in the Hours column.
B) See the table on the right. Again, we know our times tables. 5*9 = 45, and so on.
C) 45 -40 = 5
Barbara earns 5 dollars more at the theme park for 5 hours' work than she does mowing lawns. (Check: The rate difference is $1 per hour, so the difference in earnings will be $5 for 5 hours.)
Step-by-step explanation:
8×7×3 nooooooooooooooow
Answer:
168
Step-by-step explanation:
Simply multiply the 3 digits
FIND X
NEED HELP ASAP
Answer: x = 3
Step-by-step explanation:
Subtract 15 from both sides
2/3x = 2
Divide each side by 2/3
x = 3
Answer:
welp to bad its like -4 tho
Step-by-step explanation:
Tanya bought a new car. She made an
initial payment of $2,000, and she will
pay $187 each month until the car is
paid off.
Which equation represents the
relationship between x, the number of
monthly payments Tanya has made,
and y, the total amount that Tanya has
paid towards the cost of the car?
Answer:
well i know she pays 8 times
Step-by-step explanation:
For a business meeting, Jenna is making copies of her presentation. The more people
who plan to attend, the more copies Jenna will have to make.
Which of the variables is independent and which is dependent?
Independent (Select]
<
Dependent [Select ]
Answer:
Independent: The people who attend.
Dependent: The copies she has to make.
Step-by-step explanation:
She will make a certain amount of copies depending of how many people attend.
The camp director is putting 85 sack lunches in boxes for a picnic. She can fit 8 lunches in each box. She does the division problem shown to find out how many boxes she will need. 85 - 8 = 10 remainder 5 What is the meaning of the remainder in this situation? O A. The number of extra boxes needed. B. The number of extra lunches needed. O c The number of boxes left over after packing the lunches. O D. The number of lunches left over after packing the boxes. alguien me podría ayudar con la respuesta
Answer:
D
Step-by-step explanation:
Because that’s the answer Lol
plzzzz tell me what these are called in the answer first one get it
is 1.6868 irrational or rattional
Answer:
Rational
Step-by-step explanation:
Its not a repeating des that has no parter or ......
Hope this helped you
<3
Red
round 0.865 to the nearest tenth
Answer:
0.9
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
.865 will be rounded up to 1
I gave away all 300 pieces of candy.I ate 12 fun size snickers, and had 24 trick-or-treaters come to my door.how many candies did I give to each trick or treater?use c for candies
Answer:12
Step-by-step explanation:
The skating rink charges $100 to reserve the place and then $5.50 per person. Write an algebraic expression.
Answer:
y=5.5x+100
Step-by-step explanation:
since the $5.50 is your variable, you set that to the x value, and 100 to reserve is your y intercept because it is constant.
What is the equation of the line that is parallel to the
given line and passes through the point (-2, 2)?
O y=1/5x+4
Oy= 1/5x+12/5
O y = -5x + 4
O y=-5x +12/5
Answer:
y=1/5x+12/5
Step-by-step explanation:
The slope is the same
You earn $8.50 per hour and work 30 hours this week. What is the straight time pay?
Answer:
255
Step-by-step explanation:
For a charity race car event a sponsor committed to
give you a flat fee of $100 plus S10 for every lap I
that was completed.
Write an expression for the total amount you will
collect from your sponsor at the end of the race car
event.
Beatrice makes a jar of dry soup mix. The ingredients are:
1 3/4 cups uncooked rice
1/3 cup beef bouillon
1/2 cup dry lentils
1/4 cup dried onion flakes
1 2/3 = 5/3cups uncooked pasta
1/2 cup dried peas
_______________________
O Commutative Property
O Associative Property
O Zero property
O Distributive property
The equation of the graphed line is 2x – 3y = 12.
What is the x-intercept of the graph?
a) -4
b) -3/2
c) 2/3
d) 6
Answer:
6
Step-by-step explanation:
the x-intercept is where the line crosses the x-axis
Answer: D
Step-by-step explanation:
Edgen 2023
I need help with this question.
Answer:
B!
Step-by-step explanation:
700% of what number is 154?
Answer: 1,078
Step-by-step explanation:
The obtained number will be 22. As a result, 700% of x is 154.
What is the percentage?It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.
The usage of percentages is widespread and diverse. For instance, numerous data in the media, bank interest rates, retail discounts, and inflation rates are all reported as percentages. For comprehending the financial elements of daily life, percentages are crucial.
Suppose the number is x,
700% of x is 154
Apply the multiplication arithmetic operation.
(700/100) × x =154
7x=154
Divide 7 from both sides in the equation,
x=154/7
x=22
Thus, the obtained number will be 22. As a result, 700% of x is 154.
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How do you solve
Given: m
Prove: m
what is the equation of the line that passes through the point(3,-6) and has a slope of 0
Answer:
y = 3 x − 3
Step-by-step explanation:
The equation for slope-intercept form is as follows:
To find c , substitute x = 3 , y= 6 and m = 3 into the equation,6=3 (3 ) + c c= 6 − 9 c = − 3 Since we found m = 3 and c= − 3 , we can form the equation, = 3 x− 3
:D
Answer:
y=-6
Step-by-step explanation:
I got it wrong and told me this was the answer! Im not good with math lol
The amount of fresh water left in the tanks of a nineteenth-century clipper ship is a linear function of the time since the ship left port, as shown in the table. Write an equation in point-slope form that represents the function. Then find the amount of water that will be left in the ship's tanks 60 days after leaving port.
1=3555
8=3240
15=2925
The line with slope m that contains the point (x1, y1) can be described by the equation
y − y1 = m(x − x1). In a real-world linear situation, you may have information that represents two points on the line. You can write an equation in point-slope form that represents the situation and use that equation to solve a problem.
Let x represent the number of days since the ship left port and y represent the number of gallons of water.
Two points on the line are (8,3240) and (1, 3555).
m =
3555 − 3240
1 − 8
=
315
−7
= −45
y − y1 = m(x − x1) Point-slope form.
y − 3555 = −45(x − 1) or y − 3240 = −45(x − 8)
y − 3555 = −45(60 − 1) Substitute for x.
y − 3555 = −2655 Simplify the right side.
y = 900 Solve for y.
900 gallons of water will be left after 60 days.
Hope this helped! (I didn't do it sooner cause I just did the quiz lol)
The equation of the function, in point-slope form, is given by:
[tex]y - 3555 = -45(x - 1)[/tex]
The amount of water left in the ship after 60 days is of 900 cubic units.
A line, in point-slope form, is represented by the following equation:
[tex]y - y_0 = m(x - x_0)[/tex]
In which:
m is the slope, which is the rate of change.The point is [tex](x_0, y_0)[/tex].We have two points: (1, 3555) and (8,3240).
Taking the first point, [tex]x_0 = 1, y = 3555[/tex].The slope is given by change in y divided by change in x, thus:[tex]m = \frac{3240 - 3555}{8 - 1} = -45[/tex]
Then
[tex]y - y_0 = m(x - x_0)[/tex]
[tex]y - 3555 = -45(x - 1)[/tex]
The amount after 60 days is y when x = 60, thus:
[tex]y - 3555 = -45(60 - 1)[/tex]
[tex]y = 900[/tex]
The amount of water left in the ship after 60 days is of 900 cubic units.
A similar problem is given at https://brainly.com/question/13967935
what is the difference between linear and nonlinear functions?
Answer: Linear Function is a relation between two variables that produces a straight line when graphed. Non-Linear function is a function that does not form a line when graphed.
Step-by-step explanation:
ANSWER: Degrees
explanation:
The difference between the linear and nonlinear functions are their degrees. For linear functions, the highest order is only 1 while more than for those nonlinear functions. If these are presented in graphs, linear functions would generate straight lines while parabola or other curved lines will be generated for nonlinear functions.
HOPE THAT HELPED PLEASE MRAK ME AS brilliant i would love it :)
If f(x) = 2x2-4x+12 , what is f(-4)
A movie production company was interested in the relationship between the budget to make a movie and how well that movie was received by the public. The company collected information on several movies and used it to obtain the regression equation y = 0.145x+0.136, where x represents the budget of the movie (in millions of dollars) and y is the predicted score of that movie (in points from 0 to 1). Which statement best describes the meaning of the y-intercept of the regression line?
When the score of a movie is 0 points, the predicted budget is $0.
When the score of a movie is 0 points, the predicted budget is $0.136 million.
When the budget of a movie is $0, the predicted rating is 0.136 points. This interpretation is not meaningful, because a movie cannot have a budget of $0.
When the budget of a movie is $0, the predicted rating is 0.145 points. This interpretation is not meaningful, because a movie cannot have a budget of $0.
Answer:
Pretty sure it's (C), although I am unable to check. --> IT IS C I GOT 100%
"When the budget of a movie is $0, the predicted rating is 0.136 points. This interpretation is not meaningful, because a movie cannot have a budget of $0."
The y intercept is the starting "points", which is .136. Basically the company uses the equation to figure out how much money they got from a movie and how it increases as the budget increases. They make money off points.
So when there's no budget or a budget less than a million, thats what they earn in points.
Which is, .136 ; this means when theres no budget, they are expected to start with .136 points. (Probably cuz they're a cool company or something)
========================
If you're looking for a question that asks "What is the predicted score of a movie that has a $5 million budget?", its (C), .861
If you're looking for a question that asks "What is the predicted score of a movie that has a $250,000 budget?", it's (B) 0.17225 points
[THIS PART IS SEPARATE FROM THE ORIGINAL QUESTION]
========================
ED2021
The interpretation of a given situation is required.
When the budget of a movie is $0, the predicted rating is 0.136 points. This interpretation is not meaningful, because a movie cannot have a budget of $0.
The regression equation is
[tex]y=0.145x+0.136[/tex]
where,
[tex]y[/tex] = Predicted score of that movie
[tex]x[/tex] = Budget of movie in millions of dollars
The y intercept is the value of the function when [tex]x=0[/tex]. So,
[tex]y=0.145\times 0+0.136\\\Rightarrow y=0.136[/tex]
When [tex]x=0[/tex] this means the budget of the movie is 0 million dollars.
This is not meaningful.
So, the correct interpretation of the y intercept is When the budget of a movie is $0, the predicted rating is 0.136 points. This interpretation is not meaningful, because a movie cannot have a budget of $0.
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PLEASE HELP QUICK What are the solutions for x when y is equal to 0 in the quadratic function
y= x2 + x - 72?
x = -9 and x = 8 when y = 0 is the answer
Answer: x= -9,8
Step-by-step explanation:
x=?
y=0
y=x^2+x-72
0=x^2+x-72
0=(x+9)(x-8)
x+9=0 x-8=0
-9 -9 +8 +8
x= -9 x=8
How are linear functions used in everyday life?
Answer:
Step-by-step explanation:
Almost any situation where there is an unknown quantity can be represented by a linear equation, like figuring out income over time, calculating mileage rates, or predicting profit. Many people use linear equations every day, even if they do the calculations in their head without drawing a line graph.
Answer:
They don't bro
Step-by-step explanation:They should teach us how to do stuff that will actually help us in real world situations