Solve for x: -3(5x -2) - x - 2 = 116
Answer:
x = -7
Step-by-step explanation:
-3 (5x - 2) - x - 2 = 116
-15x + 6 - x - 2 = 116
-16x + 4 = 116
-16x + 4 - 4 = 116 - 4
-16x = 112
-x = 7
x = -7
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The elevation we call sea level is actually the average level of the sea. This means that at average sea level, the elevation is zero. In reality, the level of the sea rises and falls in what are called tides. Low tide is the point of lowest sea level in a tidal period. High tide is the point of highest sea level in a tidal period. The height above or below average sea level is called elevation. An elevation below sea level is considered a negative value, while an elevation above sea level is positive.
Winston lives near the ocean. He regularly brings an altimeter to the beach to measure the elevation of the ocean’s surface. You will use the data Winston gathered to complete tasks about the rising and falling of the ocean’s surface. When necessary, sketch a diagram of the situation on a separate sheet of paper to assist you.
On Monday at 1 p.m., when the ocean’s surface was at an elevation of 2.2 feet, Winston went to a surf shop that was 8.2 feet above the ocean’s surface. At 7 p.m. when the ocean’s surface was at an elevation of -2.4 feet, Winston ate dinner at a restaurant whose deck was 10 feet above the ocean’s surface.
uhm answer this.....plzzzzzz i will be ur friend (meaning imma add u, and answer ur stuff
(What was the net change in the elevation of the ocean’s surface from 1 p.m. to 7 p.m.?)
Answer:
-4.6 ft
Step-by-step explanation:
We need to learn to extract only the necessary information to answer question. The surf shop and the restaurant is extra information.
Monday 1 pm 2.2 ft
Monday 7 pm - 2.4 ft
Net change
-2.4 ft - 2.2 ft = -4.6 ft
The ocean went down 4.6 ft from 1 pm to 7 pm on Monday
Answer:
-4.6ft
Step-by-step explanation:
A triangle measures 85 degrees, 128 degrees, and x. Solve for x.
Answer:
A triangle can have at most angles totalling 180 degrees.
Two angles 85 + 128 total 213 degrees so the triangle cannot exist.
Step-by-step explanation:
Answer:
no solution
Step-by-step explanation:
The sum of the three angles in a triangle adds up to 180 degrees. We know two of the angles, 85 and 128. We are looking for the third, x.
x + 85+128 = 180
Add the like terms
x +213 = 180
This is an impossible problem
x would have to be negative
Find the larger of two consecutive integers if the larger is 149 less than twice the smaller.
Answer:
151
Step-by-step explanation:
Let x = the smaller integer and y = the larger integer.
We have two conditions:
(1) x + 1 = y
(2) y = 2x - 149 Substitute (1) into (2)
x + 1 = 2x - 149 Add 150 to each side
x + 150 = 2x Subtract x from each side
x = 150 Substitute into (1)
150 +1 = y
y = 151
The larger integer is 151.
Check:
(1) 150 + 1 = 151
151 = 151
(2) 151 = 2×150 -149
151 = 300 -149
151 = 151
Final answer:
The larger of the two consecutive integers is 151, determined by setting up an algebraic equation based on the given condition and solving for the smaller integer first.
Explanation:
The student is asked to find the larger of two consecutive integers given that the larger is 149 less than twice the smaller. Let's denote the smaller integer as n. Thus, the larger integer would be n + 1. According to the problem, we have the equation (2n) - 149 = n + 1, which simplifies to n = 150, making the larger integer 151.
Division in ratio: A company has a policy that the ratio between its full time employees and its part time employees should be fixed. (a) There are 25 full time employees and 10 part time employees. What is the ratio? (b) The company takes on more staff. There are now 30 full time employees. How many part time employees are there? (c) A year later, the firm is successful. There are now 16 part time employees. How many full time employees are there?
Answer:
a) 2.5
b) 12
c) 40
Step-by-step explanation:
a) The ratio would be the relation between fixed and part time employees: for this would be 25/10= 2.5 Fixed per part time employee
b) Previous we got the ratio. So we have to divvide the 30 fixed by 2.5 to meet units
c) b) Previous we got the ratio. So we have to multiply the 16 for 2.5 to meet units
Jackson is buying a good chain that had an original price of $795 but is advertised as 65% off. Sales tax of 8.50% is applied tot he discounted price. How much will Jackson pay for the chain ?
To find out how much Jackson will pay for the gold chain, you calculate the discount price by subtracting 65% of the original price from the original price, then apply an 8.50% sales tax to the discounted price, and add it to the discounted price to get the total cost. Jackson will pay a total of $301.90 for the gold chain.
Jackson is planning to buy a gold chain with an original price of $795 which is advertised at a 65% discount. The formula to calculate the discount price is:
Discount Price = Original Price - (Discount percentage x Original Price)First, we convert 65% to a decimal, which is 0.65:
Discount Price = $795 - ($795 x 0.65)Then, calculate the discount:
Discount Price = $795 - ($516.75)So after the discount, the price becomes:
Discount Price = $278.25On this discounted price, a sales tax of 8.50% is applied. Converting that to decimal will be 0.085 and now we multiply it with the discounted price:
Sales Tax Amount = 0.085 x $278.25Now, find the amount of sales tax:
Sales Tax Amount = $23.65125Round the sales tax to the nearest cent:
Sales Tax Amount = $23.65Finally, add the original discount price and the sales tax:
Total Price = Discount Price + Sales Tax AmountTotal Price:
Total Price = $278.25 + $23.65 = $301.90Jackson will pay $301.90 in total for the gold chain after applying the discount and sales tax.
When simplifying the quadratic formula to solve the equation x^2+6x-55=0, the number under the radical sign will be:
A)-184
B)232
C)256
x^2+6x-55=0
6²-4·6·(-55)=36+220=256
C)256
Answer:
C) 256
Step-by-step explanation:
the quadratic formula: x = (-b +- sqrt (b^2 - 4ac)) / 2a
a is the coficient of x^2: a=1
b is the coeficient of x: b = 6
c is the independent term: c= -55
introducing this values to the quadratic formula we have :
x= ( -6 +- sqrt (6^2 - 4(1)(-55)) ) /2(1)
in the radical sign we have:
6^2 - 4(1)(-55)
=36 + 220
=256
music magic offers live streaming for $9.99 a month with downloads at $0.50 a song. You have $30 a month budgeted for this service. The equation 0.5s+ 9.99=30 describes the situation. The solution to this equation is s=40.02. Explain what this means in terms of service.
Step-by-step explanation:
The equation 0.5s+ 9.99=30 describes the situation.
9.99 is the fixed amount
0.5 is the cost for each song download
30 is the maximum amount spend for a month
Here 's' represents the number of songs download
0.5s+ 9.99=30 means
0.5 times the number of songs plus the fixed cost 9.99 should be equal to 30 dollars.
The solution to this equation is s=40.02.
s= 40.02 means 40 songs can be downloaded as per the budget
A Car Travels m miles in t hours express its average speed algebraically
Answer:
speed = [tex]\frac{m}{t}[/tex]
Step-by-step explanation:
using the formula that relates distance/ speed/ time
distance = speed × time
hence speed = [tex]\frac{distance}{time}[/tex] = [tex]\frac{m}{t}[/tex]
Final answer:
The average speed is calculated by dividing the total distance traveled by the total time taken. In algebraic form for a car traveling m miles in t hours, the average speed is V_avg = m / t.
Explanation:
To express the average speed algebraically, we can use the formula for average speed which is the distance traveled divided by the time of travel. In algebraic terms, if a car travels m miles in t hours, the average speed would be represented as:
Vavg = m / t
Here, Vavg represents the average speed, m is the total distance in miles, and t is the time taken in hours. To demonstrate this with an example, if a car travels 150 kilometers in 3.2 hours, its average speed is calculated by dividing 150 km by 3.2 h, which gives an average speed of 47 km/h.
name the segment that is parallel to the given segment
Answer:
YZ
Step-by-step explanation:
Parallel lines never touch. Line yz would never touch line fg.
FG is parallel to ZY
What are parallel lines?Parallel lines are two or more straight lines in a plane that never intersect. They have the same slope and will continue indefinitely without ever crossing each other. In geometry, parallel lines are denoted by double vertical bars (||).
From the figure
Since FG bisects lines XZ and XY of the triangle XYZ
FGEZ forms a parallelogram
In a parallelogram opposite sides are equal and parallel
Therefore,
FG is parallel to ZE or ZY
Properties of parallelograms include opposite sides being equal and parallel, opposite angles being equal, consecutive angles being supplementary, and diagonals bisecting each other.
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Morgan scored 42 points in 3 games. How many points did she make per game?
Answer:
14 points per game
Step-by-step explanation:
We want to know the number of point per game, so we will take the number of points and divide by the number of games
42 points/ 3 games
14 points per game
can anyone help me graph these problems??? thank you so much :)
please tell me the points to put on the graphs
f(x) = -0.5x + 3
f(x) = -1/2x - 5
f(x) = 3/4x + 2
Answer:
1 = - 1/5
2= - 1/7
3= 3/6
Step-by-step explanation:
the step by step instructions are on the pic. but simply...
go the the full number then count from there. for example:
#2 - you go down 5 then since it says negative u go over 1 to the left then 2 down.
Use the graph of the function y = (x + 3)(x − 2) to find the solutions of the quadratic equation 0 = (x + 3)(x − 2). The solutions of the quadratic equation 0 = (x + 3)(x − 2) are –6 and 0. –4 and 3. –3 and 2. –2 and 1.
Answer:
option 3 is correct that is (-3,2) is the solution.
Step-by-step explanation:
We have been given the quadratic equation:
y=(x+3)(x-2)
You can look at the attachment to see the graph of the given quadratic equation.
The solution to the given quadratic equation is: -3 and 2
The solution is (-3,0) and (2,0).
Therefore, option 3 is correct.
Solution through graph is the point where line intersects the graph.
Answer:
the answer is c on edg
Step-by-step explanation:
The equation 0.3x = 7 was translated from the problem "_____."
0.3 is what percent of 7?
30% of what number is 7?
What number is 30% of 7?
7 is what percent of 0.03?
Answer:
B) 30% of what number is 7.
Step-by-step explanation:
The given equation is 0.3x = 7
Here "x" is a variable.
0.3x = 7 means 0.3 times of x equals 7.
The variable x is assigned for an unknown number and 0.3 = [tex]\frac{30}{100}[/tex] = 30 %
0.3x = 7
30% of x is 7
Which means 30% of the number(x) is 7.
Therefore, the answer B) 30% of what number is 7.
Note: Variables always assigned to find the unknown numbers.
Sean can spend at most $15.00 on snacks. He has ailready spent s5.00. which inequality could be solved to determine how much money Sean has left to spend on snacks?
Answer:
https://cougar.collegiate-va.org/cfoster/Mrs._Fosters_Classes/Algebra_1_files/0437_001.pdf
Step-by-step explanation: go to the 3rd page of link
The United States Air Force has 19 women for every 81 men in enlisted if a squadron has 750 members how many women are there
A:143
B:175
C:607
D:165
I need help nowww it’s a quiz last one ???
Answer:
Step-by-step explanation:
im gonna go out on a limb and say (B)
A string of a kite is 100 meters long and it makes an angle of 60° with horizontal. Find the height of the kite and then find the ground distance from the kite to the person flying the kite,assuming that there is no slack in the string.
1. Draw a figure for the information given in the problems.
2. Using the correct trig function, write out the mathematical problem.
3. Solve the problem to find the missing sides.
Answer:
Height of the kite is [tex]=50 \sqrt{3}[/tex] meters.
Ground distance from the kite to the person flying the kite is 50 meters.
Step-by-step explanation:
Given that a string of a kite is 100 meters long and it makes an angle of 60° with horizontal.
Which mans we are getting a shape of right angle triangle as shown in picture. Where "y" is the height of the kite and "x" is the ground distance from the kite to the person flying the kite. Now we can use trigonometric ratios to find the values of x and y.
[tex]\sin\left(60^o\right)=\frac{\left[opposite\right]}{\left[hypotenuse\right]}=\frac{y}{100}[/tex]
[tex]\sin\left(60^o\right)=\frac{y}{100}[/tex]
[tex]\frac{\sqrt{3}}{2}=\frac{y}{100}[/tex]
[tex]\frac{\sqrt{3}}{2}*100=y[/tex]
[tex]50 \sqrt{3}=y[/tex]
Hence height of the kite is [tex]=50 \sqrt{3}[/tex] meters.
similarly:
[tex]\cos\left(60^o\right)=\frac{\left[adjcent\right]}{\left[hypotenuse\right]}=\frac{x}{100}[/tex]
[tex]\cos\left(60^o\right)=\frac{x}{100}[/tex]
[tex]\frac{1}{2}=\frac{x}{100}[/tex]
[tex]\frac{1}{2}*100=x[/tex]
[tex]50=x[/tex]
Hence ground distance from the kite to the person flying the kite is 50 meters.
The height of the kite and the distance from kite to person are 86.6 meters and 50 meters respectively.
Using Trigonometry concept ;
The height of the kite , y can be obtained thus ;
Sine = opposite / HypotenusSin(60°) = y / 100
y = sin(60°) × 100
y = 86.6 meters
B.)
The distance from the kite to the person would be ;
Tangent = opposite / AdjacentTan(60) = 86.6667 / x
d = 86.6667 / Tan(60)
d = 50 meters
Therefore, the height of the kite and the distance from kite to person are 86.6 meters and 50 meters respectively.
A graph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent. True or False Explain your reasoning.
Answer: False
Explanation: What this statement describes is not a trapezoid, but rather a kite. A kite is a quadrilateral with two sides that are next to each other (ie adjacent) that are congruent. This is the result of combining two congruent triangles together. The diagonals of any kite are perpendicular, which is another way of saying "the diagonals have slope that are negative reciprocals".
If you had adjacent sides congruent, and a pair of parallel opposite sides, then the other two opposite sides must be parallel as well, but this would make the figure a parallelogram and not a trapezoid. This is another way to see why the answer is false.
Check out the attached image for an example.
Can you please solve this question with procedure, please????
. h (x) = 6x^2+ 3x + 1
Answer:
Step-by-step explanation:
H
[tex]6x^2+3x+1=0\\a=6,b=3,c=1\\(-b+-\sqrt{b^2-4ac} )/2a\\\\\frac{-3+-\sqrt{-15} }{12} \\\\[/tex]
The roots are:
[tex]\frac{-3+-i\sqrt{15} }{12}[/tex]
A number y is no more than -8
Answer:
y≤-8
Step-by-step explanation:
This sign represent y is no more than/is less than or equal to.
I hope this helps!=)
The number y is no more than -8 written as an inequality can be written as; y ≤ 8.
According to the question;
We are required to write the word sentence, y is no more than -8.The inequality form of the sentence, mean that the number y can only assume maximum value of -8.
Therefore; y ≤ 8
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a vehicle with power steering makes a hissing or whirring sound when the wheel is turned all the way to the stops. Technician A says that this is a normal condition. Technician B says a loud squealing noise during sharp turns may be caused by worn ball joints. who is correct?
Answer:
Technician B only
Step-by-step explanation:
Clunking Noises From the Front Suspension. One of the most common symptoms of a problem with suspension ball joints is clunking noises coming from the vehicle's front suspension. ... Usually, the clunking will get continuously louder as the ball joints wear out, or until they eventually completely fail and break.
Final answer:
Technician B is correct. A loud squealing noise during sharp turns may be caused by worn ball joints and indicates a potential issue with the suspension system.
Explanation:
Technician B is correct. A loud squealing noise during sharp turns can indeed be caused by worn ball joints. This indicates a potential issue with the suspension system which includes components like ball joints. On the other hand, a hissing or whirring sound when the wheel is turned all the way to the stops in a vehicle with power steering is not typically considered a normal condition.
How do you graph y=1/2x
Answer:
you go to zero on the origin and you rise once and run twice.
Step-by-step explanation:
so start at the origin and go up one and over to the right twice because it is positive and you go to the left if the slope is a negative.
I don’t understand this somebody explain to me how to do it and the answer I really appreciated
Answer:
11
Step-by-step explanation:
3/2 y - 3 + 5/3 z
We know the values for y (y=6) and z( z=3), so we can substitute them into the expression
3/2 * (6) - 3 + 5/3 * (3)
Multiply the terms
18/2 - 3 + 15/3
Simplify the fractions
9 - 3 + 5
Simplfiy
6 + 5
11
A survey asked a group of students to choose their favorite type of refreshment from the choices of ice cream, soda, and popsicles. The results of the survey are shown in the graph.
Based on the graph, how many more students in a class of 210 students would be expected to choose ice cream than popsicles?
A) 80
B) 120
C) 160
D) 180
Answer:
it is not a my dude it is c
Step-by-step explanation:
PLEASE HELP QUICKLY! thank you!!
Answer:
-5.25, -3.5, -1.75, 0, 1.75
Step-by-step explanation:
To which subsets of the real numbers does the number 2.37 belong?
Out of the subsets of real numbers, 2.37 belongs in the rational number subset.
write an equation for the nth term of the geometric sequence 5, 10, 20, 40
Final answer:
The nth term of the geometric sequence 5, 10, 20, 40 is given by the formula T_n = 5 × 2ⁿ⁻¹.
Explanation:
To write an equation for the nth term of the geometric sequence 5, 10, 20, 40, we need to determine the first term (a) and the common ratio (r). In this sequence, the first term a=5 and the common ratio r can be found by dividing the second term by the first term (r=10/5=2).
The formula for the nth term (Tn) of a geometric sequence is given by Tn = a × rⁿ⁻¹.
So, for the given sequence, the nth term can be expressed as:
Tn = 5 × 2ⁿ⁻¹.
The picture shows a sandwich box:
A sandwich box is shown with a right triangle side. The right triangle has hypotenuse 14 cm and base 12 cm.
What is the approximate minimum height of a shelf in which this box can fit in the position shown in the picture?
5.6 centimeters
6.8 centimeters
7.2 centimeters
18.4 centimeters
Using the Pythagorean theorem we can find the height of the triangle:
height = √(14^2 - 12^2)
height = √(196 - 144)
height = √52
height = 7.2
The answer would be 7.2 centimeters.
C. 7.2 centimeters
How do you calculate the Pythagorean theorem?a 2 + b 2 = c 2. This is known as Pythagorean equation, named after the ancient Greek thinker Pythagoras. This relationship is useful because if 2 sides of the right triangle are known, the Pythagorean theorem could be used to determine the length of the 3rd side. Referencing the above diagram, if. a = 3 and b = 4
Using the Pythagorean theorem we can find the height of the triangle:
height = √(14^2 - 12^2)
height = √(196 - 144)
height = √52
height = 7.2
The answer would be 7.2 centimeters.
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It takes you 5 hours to complete a 375 kilometer trip. What was your average speed on this trip? Henry takes a boat ride for 15 minutes to reach his destination. If the boat was traveling at 6 meters/second, how far did the boat travel? A storm is moving east towards your house at an average speed of 35 km/hr. If the storm is currently 80 kilometers from your house, in how much time do you expect it to arrive? If the velocity of an object changes from 15 m/s to 50 m/s during a time interval of 4 s, what is the acceleration of the object? If the acceleration in problem 4 is constant, what's the average velocity of the object in the previous problem? Using the information provided and calculation in problems 4 and 5, find the distance traveled within that 4 s period. A truck decelerates at a rate of 2 m/s2. If it starts with a velocity of 15 m/s, how long will it take to stop? An object with a starting velocity of 15 m/s accelerates at 3 m/s2. How far does the object travel within 10 seconds?
Answer:
1. 75 kilometers per hour
2. 5.4 kilometers
3. I expect the storm to arrive 2.3 hours.
4. Acceleration = 8.75 [tex]m/s^{2}[/tex]
5. 200 meters
6. The truck will take 7.5 seconds to stop
7. The object travels 150 meters within 10 seconds
Step-by-step explanation:
1. Average speed = [tex]\frac{distance}{time}[/tex]
[tex]= \frac{375}{5}[/tex]
= 75 kilometers per hour
2. Distance = speed × time
Time taken = 15 minutes
= 15 × 60
= 900 seconds
Distance = 6 × 900
= 5400 meters
= 5400/1000
= 5.4 kilometers
So, the boat traveled 5.4 kilometers.
3. Time = [tex]\frac{distance}{speed}[/tex]
= [tex]\frac{80}{35}[/tex]
= 2.286
So, I expect the storm to arrive in 2.3 hours.
4. Acceleration = Rate of change of velocity
= [tex]\frac{50-15}{4}[/tex]
= [tex]\frac{35}{4}[/tex]
= 8.75 [tex]m/s^{2}[/tex]
5. Distance = speed × time
= 50 × 4
= 200 meters
6. Time = [tex]\frac{velocity}{acceleration}[/tex]
= [tex]\frac{15}{2}[/tex]
= 7.5 seconds
The truck will take 7.5 seconds to stop
7. Distance = Velocity × Time
= 15 × 10
= 150 meters
Hence, the object travels 150 meters within 10 seconds.
Answer:
Number 6&8 are wrong
Number 6. is 130 m
Number 8. is 300 meters in 10 seconds
Step-by-step explanation:
Rewrite the expression without using a negative exponent.
Simplify your answer as much as possible.
Answer:
[tex]\frac{n^4}{4}[/tex]
or
[tex]\frac{1}{4} n^4[/tex]
Step-by-step explanation:
The given expression is
[tex]\frac{1}{4n^{-4}}[/tex]
This is an exponential expression with a negative index in the denominator.
We can rewrite the expression so that it will be,
[tex]=\frac{1}{4}\times \frac{1}{n^{-4}}[/tex]
We now apply this property of indices. A negative index in the denominator becomes a positive index in the numerator.
[tex]\frac{1}{a^{-m}} =a^{m}[/tex]
When we apply this we get,
[tex]=\frac{1}{4}\times n^{4}[/tex]
We then simplify to obtain,
[tex]=\frac{1}{4}n^{4}[/tex]
Final answer:
To rewrite an expression without a negative exponent, take the reciprocal of the base with the positive exponent. Division of exponentials requires dividing coefficients and subtracting exponents of the same base. Eliminate negative exponents and simplify the expression to get the final result.
Explanation:
To rewrite an expression without a negative exponent, you simply take the reciprocal of the base and use the positive exponent. For example, seeking to rewrite x-n, you would transform it into 1/xn, moving the base x to the denominator and making the exponent positive.
Division of exponentials involves simplifying expressions by dividing the coefficients and subtracting exponents when the bases are the same. For instance, for expressions like am / an, the result would be am-n. In case there are numerical coefficients in front, divide those numbers directly. After simplifying, always check whether the answer makes sense and is in the simplest form.
Working with negative exponents, it's crucial to eliminate terms that result in a more straightforward expression and confirm that no negative exponents remain in the final answer, ensuring it is in its acceptable form.