The disparity -9x/11 - 7 < -5 is x > -22/9
Explain about the inequality?The equals sign in the equation-like statement 5x 4 > 2x + 3 has been replaced by an arrowhead. This is a prime instance of inequality. This indicates that the left half, 5x 4, is larger than the right part, 2x + 3, in the equation.
Mathematical expressions with inequalities on both sides are known as inequalities. In an inequality, we compare two values as opposed to equations. In between, the equal sign is changed to a less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
The equals sign in the equation-like statement 5x 4 > 2x + 3 has been replaced by an arrowhead. This is a prime instance of inequality.
-9x/11 < 2 (add 7 to both sides) (add 7 to both sides)
-9x < 22 (multiply both sides by 11) (multiply both sides by 11)
x > 22/-9 Because you are dividing by a negative integer, change the sign.
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Answer: x > \(\frac{-22}{9}\)
Step-by-step explanation:
To solve this inequality, we will isolate the variable, x, with inverse operations.
Given:
\(\frac{-9x}{11}\)- 7 < -5
Add 7 to both sides of the inequality:
\(\frac{-9x}{11}\) < 2
Multiply both sides of the inequality by 11:
-9x < 22
Divide both sides of the inequality by -9:
* note, we must "flip" the sign since we are dividing by a negative integer
x > \(\frac{-22}{9}\)
Convert 0.0555 m to mm
Answer:
0.0555 meter =
55.5 millimeters
Answer:
55.5mm
Step-by-step explanation:
100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!
The scaled triangle will be larger than the initial size by a factor 2.
The scaled square will be smaller than the initial side by a factor 4.
What is dilation?Dilation refers to a transformation that changes the size of a geometric figure without altering its shape.
Dilation involves scaling an object by a certain factor, that might result in enlarging or reducing its dimensions uniformly in all directions.
Based on the given diagram, the new length and size of the object is calculated as follows;
For the triangle, (measure the length with ruler)
new lengths = 2 times the original lengthoriginal length = 2 cm, new length = 4 cmthe new size of the triangle will increase by a factor 2For the square; (measure the length with ruler)
new lengths = 0.25 times the original lengthoriginal length = 4 cm, new length = 2 cmthe new size of the square will decrease by a factor 4Learn more about dilation here: brainly.com/question/20482938
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I need help with this question please.
Answer:
It's B. 2/5
Step-by-step explanation:
Because: line G to E is 2/5 of G to F.
The volume V, of a cylinder is V=pie times radius to the power of 2 h, where r is the radius of the cylinder and h is the height. Using rounding to the nearest whole number, which of the following is an estimate of the volume of a cylinder with a radius of 3.75 inches and height of 6.21 inches
Answer:
\(274\,\text{in}^3\)
Step-by-step explanation:
\(V=\pi r^2h=\pi(3.75)^2(6.21)\approx274\,\text{in}^3\)
y = x^2 + 6x + 4
Find the vertex
And please explain how I don't understand.
Answer:
(-3, -5) This is my answer I hope it helps
-(4-x)=3/4(x-6) i need help pls
Solve for x by simplifying both sides of the equation, then isolating the variable.
x=−2
hope this is what your looking for
Answer:
x = -2
Step-by-step explanation:
\(-4+x=\frac{3}{4}x-\frac{9}{2}\)
\(\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\)
\(-4+x+4=\frac{3}{4}x-\frac{9}{2}+4\)
\(Simplify\)
\(x=-\frac{1}{2}+\frac{3}{4}x\)
\(\mathrm{Subtract\:}\frac{3}{4}x\mathrm{\:from\:both\:sides}\)
\(x-\frac{3}{4}x=-\frac{1}{2}+\frac{3}{4}x-\frac{3}{4}x\)
\(\frac{1}{4}x=-\frac{1}{2}\)
\(\mathrm{Multiply\:both\:sides\:by\:}4\)
\(4\cdot \frac{1}{4}x=4\left(-\frac{1}{2}\right)\)
\(x=-2\)
~lenvy~
What is the midpoint of the line segment with the given endpoints (4,6) (3,-3)
Help it’s urgent
The coordinates of the midpoints of the given line segment is:
(3.5, 1.5)
How to find the midpoints of a line segment?The midpoint of a line segment is simply referred to as the center of that specific line segment.
Thus, the coordinates at that point will be referred to as the coordinates of the midpoint.
The coordinates of the endpoints of the line are:
(4,6) and (3,-3)
The formula to find the coordinates of the midpoint of the line is:
(x, y) = (x₁ + x₂)/2, (y₁ + y₂)/2
Thus, we have:
(x, y) = (4 + 3)/2, (6 - 3)/2
= (3.5, 1.5)
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5. Select all expressions that are equivalent to 3^8.
A. 3^2x3^4
B. 3²x3^6
C. 3^16/3^2
D. 3^12/3^4
E. (3^4)²
F. (3¹)^7
The expressions that are equivalent to 3^8 are:
B 3²x3^6D. 3^12/3^4E. (3^4)²How to solve the expressionsWe have to solve these out
3^8. = 6561
From the options
A. 3^2x3^4
= 9 x 81
= 729
B 3²x3^6
= 9 x 729
= 6561
C. 3^16/3^2
= 43046721/9
= 4782969
d. 3^12/3^4
= 531441 / 81
= 6561
E. (3^4)²
= 3⁴ x 3⁴
= 3⁴⁺⁴
= 3⁸
= 6561
F. (3¹)^7
= 3⁷
= 2187
The expressions that are equivalent to 3^8 are:
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Which of the following is the best estimate of the temperature at 11:00 pm if the temperature continues to drop at the same rate?
In order to calculate the rate, we calculate the variation of temperature and time
\(\begin{gathered} \Delta time=8-6 \\ \Delta time=2 \\ \\ \Delta temperature=-17-(-13) \\ \Delta temperature=-17+13 \\ \Delta temperature=-4 \end{gathered}\)then, calculate the rate by dividing the variation of temperature by the variation of time
\(\frac{\Delta temperature}{\Delta time}=\frac{-4\degree C}{2h}=-\frac{2\degree C}{h}\)the rate is equal to -2°C per hour, then from 8:00 pm to 11:00 pm, there is a difference of 3 hours.
Multiply the time by the rate:
\(-\frac{2\degree C}{h}\times3h=-6\degree C\)The temperature drops another 6°C, then,
\(-17\degree C-6\degree C=-23\degree C\)Answer:
The temperature will be about -23°C
Hello, I need help graphing with y = x+4,
WILL GIVE BRAINLIEST TO CORRECT ANSWER!!!
This scale drawing shows a reduction in a figure.
What is the value of x?
Enter your answer as a decimal in the box.
X =
The value of x for the second triangle if it is the reduction of the first drawing is 6.3 feet.
Given two triangles.
Also given that, the scale drawings given are the reduction of the figure.
Most probably, the second triangle must be formed after a reduction with a scale factor of k.
Let k be the required scale factor.
The value of k can be found by taking the ratio of the corresponding sides.
k = 5.2 / 10.4
= 0.5
So all the corresponding sides will be half of the first triangle.
x = 0.5 × 12.6
= 6.3 feet
Hence the value of x is 6.3 feet.
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Choose the most reasonable volume for the air in a four-man, hot air balloon.
2500 m^3
2.5 m^3
25 000 m^3
0.25 m^3
Answer:
2500m^3
Step-by-step explanation:
beucase it is the most reasonable
Determine the number of solutions of each system of equations.
Answer:
no solutions
Step-by-step explanation:
x+y = 5
-2x-2y = 10
Multiply the first equation by 2
2x+2y =10
Add this to the second equation
2x+2y =10
-2x-2y =10
0 =20
This is not true so there are no solutions
HELP ME PLZ IM SO STRESSED UGH IM CHOOSING BRAINLEST !!!!!!!!!!!!!!!! ONLY IF U GET IT RIGHT
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On a certain hot summer's day, 379 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for adults. The
receipts for admission totaled $693.50. How many children and how many adults swam at the public pool that day?
Let, number of children and adults swam at the public pool that day is x and y.
So, x + y = 379 .....1)
It is given that daily prices are $1.75 for children and $2.00 for adults.
Also, the receipts for admission totaled $693.50.
So, 1.75x + 2y = 693.50 .....2)
Putting value of y from equation 1 to equation 2 , we get :
1.75x + 2( 379 - x ) = 693.50
758 - 2x + 1.75x = 693.50
0.25x = 64.5
x = 258
So, y = 379 - 258 = 121
Therefore, number of children are 258 and adults are 121.
what is the surface area for this figure
The surface area of the triangular prism is 313.47 cm².
Given is a triangular prism, we need to find the surface area,
A triangular prism is a 3D shape with two identical faces in the shape of a triangle connected by three rectangular faces. The rectangular faces are referred to as the lateral faces, while the triangular faces are called bases. The bases are also called the top and the bottom (faces) of the prism.
Triangular Prism Meaning: A triangular prism is a 3D polyhedron with three rectangular faces and two triangular faces. The 2 triangular faces are congruent to each other, and the 3 lateral faces which are in the shape of rectangles are also congruent to each other. Thus, a triangular prism has 5 faces, 9 edges, and 6 vertices. Observe the following image of a triangular prism in which l represents the length of the prism, h represents the height of the base triangle, and b represents the bottom edge of the base triangle.
so, the surface area of a triangular prism =
perimeter × length + 2 × base area
So,
SA = (4.5+7.2+9) × 8.1 + 2 × 8.1 × 9
= 167.67 + 145.8
= 313.47
Hence the surface area of the triangular prism is 313.47 cm².
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Solve: 12x² +5x-4_122x+6
Ox=2
O x = -5
O x = 2, x = -5
Ono solution
Solution of the expression are,
⇒ x = - 5, x = 2
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ \(12^{x^{2} + 5x - 4} = 12^{2x + 6}\)
Now, We can compare as;
⇒ x² + 5x - 4 = 2x + 6
Solve for x as;
⇒ x² + 3x - 10 = 0
⇒ x² + 5x - 2x - 10= 0
⇒ x (x + 5) - 2 (x + 5) = 0
⇒ (x + 5) (x - 2) = 0
⇒ x = - 5, x = 2
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solve the system of equations y = 2x - 5; y = -2x + 3
Answer:
Solving gives us the result, x = 2, y = -1
Step-by-step explanation:
The system of equations is,
y = 2x-5
y=-2x+3
equating the two equations, we get,
(since y = y)
\(2x-5 = -2x + 3\\4x -5 = 3\\4x = 3+5\\4x=8\\x=8/4\\x=2\)
and then since y = 2x-5
\(y=2(2)-5\\y=-1\)
so, x =2, y = -1
Anyone please solve for me
Answer:
A
Step-by-step explanation:
9. In the figure shown ABCD is a rectangle, DE ~ FC, BC EC, and F is the midpoint
of BC. Find the perimeter of AAEF. Give an exact answer.
A
D
2
E
B
F
C
The perimeter of the right triangle is 15 units
How to find the perimeter of the triangleThe dimensions of the triangle is solved by Pythagoras theorem given by the the formula
hypotenuse² = opposite² + adjacent²
Since F is mid segment then BF = F'C and DE = 2 = F'C
hence B'C = B'F + F'C = 2 + 2 = 4
In a rectangle B'C = AD = 4 = EC
F'E² = F'C² + EC²
F'E² = 2² + 4²
F'E² = 4 + 16
F'E = √20
F'E = 4.47
Solving for AE
AE² = AD² + DE²
AE² = 2² + 4²
AE² = 4 + 16
AE = √20
AE = 4.47
Solving for A'F
A'F² = AE² + FE²
A'F² = √20² + √20²
A'F² = 20 + 20
A'F = √40
A'F = 6.32
The perimeter of the triangle is
P = A'F + AE + FE
P = 6.32 + 4.47 + 4.47
P = 15.26
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Michael and Tracy are carpeting their family room that is 15 1/2 feet long and 12 1/4 feet wide. To find the amount of carpet needed, Michael says to multiply 15 1/2 and 12 1/4 and Tracy says to multiply 12 1/4 and 15 1/2. Who is right? How much carpet is needed?
Answer:
Both of them are right
The amount of carpet needed is 189 7/8 feet
Step-by-step explanation:
Here, we want to get the person with the right calculations step between Michael and Tracy
From what we can see in the question, both exactly have the same calculations
They only differ in the number to put first
So we can say both are right
The amount of carpet needed will be;
12 1/4 * 15 1/2
= 49/4 * 31/2 = 1519/8
= 189 7/8 square feet
I don’t think I got the right answer?
Answer:
it's third option the one who says 10 units up
Which equation can be used to find the area of the blue triangle?
A) A=2(7)(12)
B) A= 1/2 (7)(12)
C)A=2(7²)(12²)
D)A= 1/2(7²)(12²)
Answer:
The answer is D. A=1/2(7 to the power of 2) 12 to the power of 2)
Step-by-step explanation:
Emma paid $26 in all for hammer and a screwdriver the hammer cost 10$ write an addition equation using the variable n to show how much she spent on the screwdriver
Answer:
s= 26-10
Step-by-step explanation:
You don't exactly have to use "S" as the variable, but since she paid $26 in all and we know that the hammer cost $10, you would just subtract 26 from 10 and get 16, the price of the screwdriver.
I need help. 18 = a/2
\(a = 36\) ✔
Step-by-step explanation:
\(18 = \frac{a}{2} \\ ➡ \: a \: = 18 \times 2 \\ ➡ \: a = 36\)
\(\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆\)
I need help ASAP thanks if you help
Answer:
10
Step-by-step explanation:
because i know
For groups of 80 or more people, a charter bus company determines the rate r (in dollars per person) according to the formula
r = 8 − 0.05(n − 80), n ≥ 80
where n is the number of people.
(a) Express the revenue R for the bus company as a function of n.
(b) Complete the table.
(c) Criticize the formula for the rate. Would you use this formula? Explain your reasoning.
The formula for rate given is not ideal, as it does not take into account factors like the distance traveled or additional services offered by the bus company. It also does not account for additional fees or taxes. Therefore, it does not provide an accurate representation of the price and should not be used.
(a) R(n) = r(n) * n = (8 − 0.05(n − 80)) * n
(b)
n r (dollars per person) R (dollars)
80 8 640
90 7.5 675
100 7 700
(c) This formula for the rate is not ideal, as it does not take into account factors like the distance traveled or any additional services that the bus company may offer. It also does not account for any additional fees or taxes. I would not use this formula, as it does not provide an accurate representation of the price the bus company should charge for its services.
The formula for rate given is not ideal, as it does not take into account factors like the distance traveled or additional services offered by the bus company. It also does not account for additional fees or taxes. Therefore, it does not provide an accurate representation of the price and should not be used.
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if a coin is flipped 35 times and lands on heads 21 times what is the relative frequency of Landing on heads
Work Shown:
21/35 = (7*3)/(7*5) = 3/5
Out of 20 people how many would you expect to say that they like all seasons
Answer:
None
Step-by-step explanation:
Truly, I'm not sure what type of problem this is, but most people don't favor all the seasons. If there is more to the problem, I would be glad to help further.
Answer:
One possible way to estimate how many people out of 20 would say that they like all seasons is to use a simple random sample. A simple random sample is a subset of a population that is selected in such a way that every member of the population has an equal chance of being included. For example, one could use a random number generator to assign a number from 1 to 20 to each person in the population, and then select the first 20 numbers that appear. The sample would then consist of the people who have those numbers.
Using a simple random sample, one could ask each person in the sample whether they like all seasons or not, and then calculate the proportion of positive responses. This proportion is an estimate of the true proportion of people in the population who like all seasons. However, this estimate is not exact, and it may vary depending on the sample that is selected. To measure the uncertainty of the estimate, one could use a confidence interval. A confidence interval is a range of values that is likely to contain the true proportion with a certain level of confidence. For example, a 95% confidence interval means that if the sampling procedure was repeated many times, 95% of the intervals would contain the true proportion.
One way to construct a confidence interval for a proportion is to use the formula:
p ± z * sqrt(p * (1 - p) / n)
where p is the sample proportion, z is a critical value that depends on the level of confidence, and n is the sample size. For a 95% confidence interval, z is approximately 1.96. For example, if out of 20 people in the sample, 12 said that they like all seasons, then the sample proportion is 0.6, and the confidence interval is:
0.6 ± 1.96 * sqrt(0.6 * (1 - 0.6) / 20)
which simplifies to:
0.6 ± 0.22
or:
(0.38, 0.82)
This means that we are 95% confident that the true proportion of people who like all seasons in the population is between 0.38 and 0.82. Therefore, based on this sample and this confidence interval, we would expect between 8 and 16 people out of 20 to say that they like all seasons in the population.
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Solve using tangent and cosine
The value of side length x in diagram a) is 4.3mm and side length x in diagram b) is 309.7 m.
What are the sides of the triangle labelled x?The figures in the image are right triangles.
A)
angle D = 17 degree
Adjacent to angle D = 14 mm
Opposite to angle D = x
To solve for the missing side length x, we use the trigonometric ratio.
Note that: tangent = opposite / adjacent
Hence:
tan( 17 ) = x/14
x = tan( 17 ) × 14
x = 4.3mm
B)
angle Z = 82 degree
Adjacent to angle Z = 43.1 m
Hypotenuse = x
Using trigonometric ratio,
cosine = adjacent / hypotenuse
cos( 82 ) = 43.1 / x
x = 43.1 / cos( 82 )
x = 309.7 m
Therefore, the measure of x is 309.7 meters.
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