Step-by-step explanation:
???
solve it for x ?
if that's the case :
4x + 7 - 6x = 10 + 3x + 12
-2x + 7 = 22 + 3x
-15 = 5x
x = -3
Answer:
-3Step-by-step explanation:
4x+7-6x = 10 + 3x + 12
4x + 7 - 6x - 10 - 3x - 12 = 0
-5x - 15
x = -3
------------
check
4 * (-3) + 7 - 6 * (-3) - 10 - 3 * (-3) - 12 = 0
the answer is good
given the following data, find the percentile of a diameter of 1.45 inches. diameters of golf balls (in inches) 1.34 1.54 1.47 1.38 1.51 1.39 1.34 1.58 1.60 1.57 1.52 1.42 1.46 1.61 1.51 1.61 1.66 1.55 1.33 1.34
Answer:
36.516th percentile (below the mean)
Step-by-step explanation:
First, find the mean of the dataset, which would be 1.4865 in this case.
We then find the standard deviation, which would be about 0.1059
Next, find the z-score for the observed value 1.45, which would be (1.45-1.4865)/0.1059, which is about -0.3447, and this corresponds to a percentile of 36.516%
A number j plus the quotient of 6 and a number c write the phrase as a expression
Answer:
\(j + ( 6 / c)\)
The owner of a construction company buys cement in bulk. he recently payd 600.00 for 12,000 pound of cement. how much did he pay per pound?
The owner of the construction company paid $0.05 per pound of cement.
What is probability?
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to happen. The probability of an event can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes. Probability is used in many fields, such as mathematics, statistics, science, engineering, economics, and finance, to model and analyze uncertain situations and make informed decisions based on data and evidence.
To find the cost per pound of cement, we need to divide the total cost by the total weight of cement purchased.
Cost per pound of cement = Total cost ÷ Total weight of cement
Total cost = $600.00
Total weight of cement = 12,000 pounds
Cost per pound of cement = $600.00 ÷ 12,000 pounds
Cost per pound of cement = $0.05
Therefore, the owner of the construction company paid $0.05 per pound of cement.
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I need to know where to put it on the number line! Please help
Answer:
Graph uploaded!
Step-by-step explanation:
First, let's simplify the inequality before graphing it on the line.
2x + 4 < 8=> 2x < 8 - 4=> 2x < 4=> x < 2Now, let's graph it on the line. Please consider looking at my graph.
Hoped this helped!
Please look at the photo. Thank you!
The equations of the composite functions are (h o h)(x) = (x² + 3)² + 3 and (f o f)(x) = x
How to calculate the composite functionsFrom the question, we have the following equations that can be used in our computation:
h(x) = x² + 3
f(x) = 3/4x
From the above, we have
(h o h)(x) = h(h(x))
So, we have
(h o h)(x) = (x² + 3)² + 3
Also, we have
(f o f)(x) = 3/[4(3/4x)]
Evaluate
(f o f)(x) = x
Hence, the composite functions are (h o h)(x) = (x² + 3)² + 3 and (f o f)(x) = x
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Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared. x2+3/2x
Answer:
The added term needed for that expression to be a square is 9/16.
Step-by-step explanation:
We're provided with two terms, and asked to add an additional term to make this a perfect square. For this to work, the term needs to be a scalar value that is the square of half the coefficient of the second term.
That coefficient is 3/2, so half of that is 3/4, and its square is 9/16.
If we tack that on the end then, we get:
\(x^2 + \frac{3x}{2} + \frac{9}{16}\\=(x + \frac{3}{4})^2\)
To confirm the answer, let's expand it and see if we get the original expression:
\((x + \frac{3}{4})^2\\= (x + \frac{3}{4})(x + \frac{3}{4})\\= x^1 + \frac{3x}{4} + \frac{3x}{4} + \frac{9}{16}\\= x^2 + \frac{6x}{4} + \frac{9}{16}\\=x^2 + \frac{3x}{2} + \frac{9}{16}\)
So 9/16ths is the scalar that needs to be added on the end.
Fred is standing at a point looking north. He walks on a bearing 056° for 9.8km before stopping. He then walks an additional 3.5 km on a bearing of 112° before stopping to rest. (a) Find out how far he is away from his start point using sine or cosine rule (b) Determine the area of the enclosed shape (c) Draw neat labeled scale diagram of the same
The area of the enclosed shape is about 14.47 km^2.
We are given that;
056° for 9.8km and 3.5 km on a bearing of 112°
Now,
We can see that the enclosed shape is a triangle with sides 9.8 km, 3.5 km, and z km, and angles 56°, 112°, and y°. We can use the fact that the sum of angles in a triangle is 180° to find y:
y = 180° - 56° - 112°
y = 12°
Now we can use the cosine rule to find z:
z^2 = 9.8^2 + 3.5^2 - 2(9.8)(3.5)cos(12°)
z^2 ≈ 101.87
z ≈ 10.09
Therefore, Fred is about 10.09 km away from his start point.
To find the area of the enclosed triangle, we can use the sine rule to find x, the height of the triangle:
sin(56°) = x/9.8
x = 9.8 sin(56°)
x ≈ 8.27
The area of a triangle is given by half the base times the height, so:
A = (1/2)(3.5)(8.27)
A ≈ 14.47
Therefore, by trigonometric ratios the answer will be 14.47 km^2.
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Given f(x) =2x2 + 1 and g g(x) = 3x-5 , find the following. f(g)(2))
The value of f(g(2)) from the given functions f(x) and g(x) is 3.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
The given functions are f(x)=2x²+1 and g(x)=3x-5.
We need to find f(g(2)).
Put x=2 in the function g(x)=3x-5, we get
g(2)=3×2-5
= 6-5
= 1
So, g(2)=1
Put x=1 in the function f(x)=2x²+1, we get
f(g(2))=2(1)²+1
= 2+1
=3
Therefore, the value of f(g(2)) is 3.
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Find the interquartile range using the following.
Minimum: 1
Q1: 3
Median: 5
Q3: 7
Maximum: 9
A. 8
B. 4
C. 5
D. 10
Answer: B. 4
Step-by-step explanation: The interquartile range is just the distance in between the upper and lower quartiles. Therefore, to find the interquartile range, the equation in this case is 7 - 3, which equals 4.
Of the students taking a gym class, 4 students take cricket for every 3 students who take golf. This is represented in the diagram. Explain how you can use the diagram to find the number of students who are taking golf if there are 32 students taking cricket.
Answer:
96
Step-by-step explanation:
i did 32 times 3
Work out the question ?
4 1/2 - 1 1/3=
Answer:
Today: Tuesday, 12th January 2021
16.31 PM
\( \tt 4 \frac{1}{2} - 1 \frac{1}{3} \)
\( = \tt \frac{9}{2} - \frac{4}{3} \)
\( = \tt \frac{27 - 8}{6} \)
\( \tt = \frac{19}{6} \)
\({\orange{\boxed{\red{ \tt = 3 \frac{1}{6} }}}}\)
Bill keeps a colony of honeybees on his property. He has created an expression to represent the number of honeybees that are in the colony t years after he decided to create the colony. The expression Bill created is -16t4 + 160t2 – 144.
After deciding to create the colony, it took a fair amount of time to prepare before actually getting bees in his colony. After some time, the population in the colony started to decrease; eventually Bill lost his colony.
Set the term being squared from part b equal to x and rewrite the expression in terms of x.
Answer:
x is 12
Step-by-step explanation:
In the diagram below, FC = 10.9,
DE = 17.5, and DF = 13.1. Find the
length of EB. Round your answer to the
nearest tenth if necessary.
D
F
E
C
B
The length of EB is approximately 14.6 units when rounded to the nearest tenth.
To find the length of EB, we can use the property of similar triangles in this diagram. By looking at triangle DFE and triangle CFB, we can see that they are similar triangles.
Using the similarity ratio, we can set up the proportion:
DF / CF = DE / EB
Plugging in the given values, we have:
13.1 / 10.9 = 17.5 / EB
To find EB, we can cross-multiply and solve for EB:
13.1 * EB = 10.9 * 17.5
EB = (10.9 * 17.5) / 13.1
EB ≈ 14.6
Therefore, the length of EB is approximately 14.6 units when rounded to the nearest tenth.
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Exponential form of 0.0625
Answer:
2⁻⁴
Step-by-step explanation:
0.0625 = 1/16 = 1/2⁴ = 2⁻⁴
Reuben made a shirt using 7/8yards of red fabric and 1/4yards of yellow fabric. How many more yards of red fabric did Reuben use?
Answer and Step-by-step explanation:
To find out how many more yards of red fabric Reuben used, we need to subtract the amount of yellow fabric from the amount of red fabric. Since the two fractions have different denominators, we need to find a common denominator before subtracting them. The least common multiple of 8 and 4 is 8, so we can rewrite both fractions with a denominator of 8:
7/8 - 1/4 = 7/8 - (1/4) * (2/2) = 7/8 - 2/8 = (7 - 2)/8 = 5/8
So, Reuben used 5/8 yards more red fabric than yellow fabric.
Which mixed numbers have 12 as the LCD (lowest common denominator)?
2 11/12
3 1/7
5 3/4
6 4/5
8 38
MARK
The mixed numbers that have 12 as the LCD are 2 11/12 and 6 4/5. All other fractions do not have 12 as the denominator and are not equivalent.
What are mixed numbers?Mixed numbers consist of a whole number and a fractional part. To add or subtract mixed numbers, the fractions must have the same denominator (the bottom number of the fraction).
The LCD (lowest common denominator) is the smallest number that all of the denominators can be divided into evenly. In this case, the LCD is 12.
2 11/12 and 6 4/5 both have 12 as the denominator. The denominator of 11/12 can be divided by 11 and 12, so it is the same as 12/12. The denominator of 4/5 can be divided by 4 and 12, so it is the same as 48/12 (4 x 12 = 48). Therefore, both fractions have the same denominator.
The other fractions do not have 12 as their denominator. 3 1/7 can be divided by 3, 7, and 12, so it is the same as 21/12 (3 x 7 = 21). 5 3/4 can be divided by 4, 5, and 12, so it is the same as 60/12 (4 x 5 = 60). 8 38/47 can be divided by 8, 47, and 12, so it is the same as 376/12 (8 x 47 = 376). Since none of these fractions are equal to 12/12, they are not equivalent to the other two fractions.
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Question :
Which mixed numbers have 12 as the LCD (lowest common denominator)?
2 11/12
3 1/7
5 3/4
6 4/5
8 38/47
A marching band performs on the football field at half-time. As they perform, the members of the band stand in
the shape of a sinusoidal function. While playing, they move, but still maintain the sinusoidal function,
transforming it in different ways.
Darla is a member of the marching band. As the band begins to play she is positioned in the exact center of the
field. The person closest to her on the same horizontal line, stands 10 yards away. The sinusoidal function
extends to the ends of the playing field.
The playing area of football field measure 300 feet by 160 feet. Place the playing area of a football field on the
coordinate plane such that the origin is the lower left comer of the football field.
(Score for Question 1: of 2 points)
1. What is the period and the amplitude of the sine function representing the position of the band members as
they begin to play?
Answer.
The period of the sine function representing the position of the band members is 60 feet, and the amplitude is approximately \(170.3 feet.\)
What is the coordinate plane?Since the band members are standing in the shape of a sinusoidal function, we can assume that their positions can be represented by the equation:
\(y = A sin(Bx)\)
where y is the vertical position of a band member, x is the horizontal position on the field, A is the amplitude, and B is the period.
Since Darla is positioned in the exact center of the field, and the person closest to her on the same horizontal line stands 10 yards away, we can assume that the sinusoidal function has a phase shift of 0. This means that the midline of the function passes through the point (0, 0).
To find the amplitude, we need to determine the maximum and minimum heights of the function.
Since the playing area of the football field measures 300 feet by 160 feet, the distance between the two farthest points on the field is the diagonal distance, which can be calculated using the Pythagorean theorem:
\(sqrt(300^2 + 160^2) \approx 340.6 feet\)
Since the distance between the farthest points on the field is equal to the distance between two peaks or two valleys of the sinusoidal function, the amplitude is half of this distance:
\(A = 340.6/2 \approx170.3 feet\)
To find the period, we can use the fact that the distance between two consecutive peaks or valleys is equal to the period of the function.
Since the person closest to Darla stands 10 yards away, or 30 feet away, we can assume that this person is standing at a peak or a valley of the function. This means that the period is twice the distance between Darla and the person closest to her:
\(P = 2(30) = 60 feet\)
Therefore, the period of the sine function representing the position of the band members is 60 feet, and the amplitude is approximately \(170.3 feet.\)
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HELPP! I LOVE YOU! due today btw
In August 2006, a report was issued about an Internet poll conducted on behalf of the Oxygen Television Network. The survey included 1400 women and 700 men, aged 15 to 49. The following is part of a press release about the findings.
"Apparently if it's a gadget, women gotta have it, according to a survey done by Oxygen Media, an American cable network owned and operated by women. The Women's Watch: Girls Gone Wired survey released in August indicates that 77 per cent of women fancy a new plasma TV over a diamond solitaire necklace, 78 per cent would rather have a sleek new cell phone than shoes, and 86 per cent would prefer a new digital video camera over designer footwear."
What can be said about these poll results?
Answer:
Results of the Assembly elections in five States are indeed a shot in the arm for the Bharatiya Janata Party (BJP), which won in all four States where it was in power. The Hindu editorial captures the broad trends that emerge out of these results. Prime Minister Narendra Modi has said these results have sealed the outcome of the 2024 Lok Sabha elections too in the BJP’s favour. He said people have rejected caste and dynastic politics.
Country A has an exponential growth rate of 4.3% per year. The population is currently 4,079,000, and the land area of Country A is 19,000,000,000 square yards. Assuming this growth rate continues and is exponential, after how long will there be one person for every square yard of land?
The number of years it would it take for there to be one person for every square yard is 108,325.68 years.
How many years would it take for there to be one person for every square yard?When there is one person for every square yard, it means that the population and land area are equal in value.
Number of years = (In FV / PV) / r
FV = future populationPV = present populationr = rate of growth(In 19 billion / 4,079,000) / 0.043 = 108,325.68 years
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Please someone help me with this question...
Answer:
(❁´◡`❁)
Step-by-step explanation:
How many solutions does this system have? no solutions one unique solution O O two solutions O or an infinite number of solutions
Answer:
no solutions
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
equation of blue line is y = x + 2 , in slope- intercept form
with slope m = 1
equation of red line is y = x - 3 , in slope- intercept form
with slope m = 1
• Parallel lines have equal slopes
then the blue and red lines are parallel.
the solution to the system is at the point of intersection of the 2 lines
since the lines are parallel then they do not intersect each other.
thus the system shown has no solution.
Solve for x.
A. 6/3
B. 5
C. 12
D. 12.5
Answer:
x=12
Step-by-step explanation:
Using Proportion:
\(\tt \cfrac{x}{16} =\cfrac{9}{x}\)
\(\tt x^2=9(16)\)
\(\tt x=12\)
PLEASE AM N MDDLE SCHOOL!
Use the listing method to write the following set \ 1,2,3\; [0, 1, 2, 3] O (1, 2)
Which tiles should be added to the model below to make zero?O6 negative tilesO6 positive tilesO3 negative tiles and 3 positive tilesO6 negative tiles and 6 positive tiles
If the tiles have the same value then to make 0 you need:
3 negative tiles and 3 positive tiles.
Explanation:
If one tile has the value of 1 and you pot:
- 1 -1 - 1 + 1+ 1 + 1
it will be zero.
5/8 dived by 3/5
Help please
Answer:
5/6
Step-by-step explanation:
you must flip 3 over 5 and multiply
21,437 to the nearest ten thousand
Answer:
the question is not well defined
Answer:
20,000
Step-by-step explanation:
the 1 will make the 21437 round down because it is less than 5
Helppp plzzzzzz!!!!!!
Answer: a
Step-by-step explanation:
An oak tree is 4 meters tall and a bird is standing on the ground 3 meters from the tree. If the bird flies directly
to the top of the tree, how far will it fly? Draw a picture and show your work.
Answer:
5 meters
Step-by-step explanation:
4m^2+3m^2= C^2
16m+9m=C^2
25=C^2
5=C