Step-by-step explanation:
Composite numbers are 32,35,and 49 .
I hope it's helpful!
what is the approximate surface area of a cylinder with a radius of 3 inches and a height of 10 inches?
1. 30in^2
2. 87in^2
3. 217in^2
4. 245in^2
The correct Standard Form of the equation y=3/2x+3
Answer:
3x-2y=-6
My mom listening to wap
Is the following statement true? Justify your answer to get credit: “If X1, · · · , Xn are independently distributed, then for large enough n, the central limit theorem says that the sample mean Xn has a normal distribution.”
Using the Central Limit Theorem, it is found that the statement is true, as for sample sizes of 30 or more, the sampling distribution of sample means is normal.
What does the Central Limit Theorem state?It states that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).
For a skewed variable, the sampling distribution is also approximately normal, as long as n is at least 30.
Hence, the statement is true, as for sample sizes of 30 or more, the sampling distribution of sample means is normal, no matter the underlying distribution of the variable.
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Answer all questions about the solid.
The shape is a triangular prism with a triangular base, base area of 24in², height of 5in and volume of 40in³
Determining the volume of a prismThe given solid is a triangular prism since its base figure is triangular in nature.
Since the base is a triangle, the area of the base is expressed as:
Area = 1/2 * base * height
Area of base = 1/2 * 6 * 8
Area of base = 24 square inches
The height of the solid is 5 inches and the required volume is calculated as:
Volume = BH/3
Volume = 24*5/3
Volume = 40 cubic inches
The shape is a triangular prism with a triangular base, base area of 24in², height of 5in and volume of 40in³
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I will give you the brainliest!!! And 25 points!!!!
Someone solve this for me with explanation please. I need help
The perimeter of the given triangle with given lengths is; 78
What is the perimeter of the triangle?The perimeter of a triangle is defined as the sum total of the 3 side lengths of the triangle.
Now, we are given the triangle as QRS.
We are given that;
A is the midpoint of QR
B is the midpoint of RS
C is the midpoint of SQ
Thus;
QA = RA = 10
BR = SB = 15
SQ = 28
Thus;
Perimeter of Triangle = 2(10) + 2(15) + 28 = 78
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A person is walking at a rate of 9 feet every 4 seconds.
(a) Find their speed, i.e. the rate the distance
Answer:
v = 2.25 ft/s
Step-by-step explanation:
Given that,
A person is walking at a rate of 9 feet every 4 seconds.
We need to find their speed. We know that, the speed of total distance divided by time taken. So,
\(v=\dfrac{d}{t}\\\\v=\dfrac{9\ ft}{4\ s}\\\\v=2.25\ ft/s\)
So, the speed is 2.25 ft/s.
There are 80 Students in the marching band.
Can they match in 2,5, and /or 10 equal rows? Explain.
Answer:
Step-by-step explanation: Yes, they can match in 2, 5, and/or 10 equal rows. This is because the number of items in the set can be divided evenly by 2, 5, and 10. For example, if there are 20 items in the set, it can be divided into 2 rows of 10, 5 rows of 4, or 10 rows of 2.
Which of the following equations has a graph in the
xy-plane for which y is always greater than or equal
to -1 ?
A) y = |x| - 2
B) y = x2 - 2
C) y = (x - 2)2
D) y = x3 - 2
Answer: (x-2)2
Step-by-step explanation:
The required equation is \(y=(x-2)^2\)
The correct answer is an option (C)
What is an equation?"It is a mathematical statement which consists of equal symbol between two algebraic expressions."
For given question,
We have been given four equations.
We need to find an equation for which y is always greater than or equal
to -1.
Consider,
A. y = ∣x∣ - 2
We know that the minimum value of ∣x∣ is 0.
So, the minimum value of y becomes -2
Hence, this is not a required equation.
B. \(y=x^{2} -2\)
We know that the square of any number is always positive.
The minimum value of \(x^{2}\) is 0.
So, the minimum value of y becomes −2
Hence, this is not a required equation.
C. \(y=(x-2)^2\)
We know that the square of any number is always positive.
The minimum value of y is zero.
This means, the y value of equation \(y=(x-2)^2\) is always greater than -1.
D. \(y=x^3-2\)
We know that \(x^3\) can go have negative values. This means it may have value that tends to negative infinity.
This means, the y can be less than -1 and this is not a required equation.
Therefore, the required equation is \(y=(x-2)^2\)
The correct answer is an option (C)
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2. Marco is 56.8 pounds and his brother Brent is pounds. How much lighter is Marco? 63 2/5
Brainliest point
Answer: now u can crown him
Step-by-step explanation:
A study was done by an online retail store to determine the rate at which users used its website. A graph of the data that was collected is shown: A line graph with Number of Months on the x axis and Number of Users, in thousands, on the y axis. The x axis has a scale from 0 to 36 with an increment of 4. The y axis has a scale of 0 to 60 with increments of 6. A straight line connecting 0, 0 and approximately 36, 54 is drawn. What can be interpreted from the range of this graph? v
Answer:
A graph of the data that was collected is shown: A line graph with Number of Months on the x axis and Number of Users, in thousands, on the y axis. The x axis has a scale from 0 to 36 with an increment of 4. The y axis has a scale of 0 to 60 with increments of 6. A straight line connecting 0, 0 and approximately 36, 54 is drawn. What can be interpreted from the range of this graph? v .
Answer:
c
Step-by-step explanation:
Please help me find the answer to this question
-------------------------------------------------------------------------------------------------------------
Answer: The top right table
-------------------------------------------------------------------------------------------------------------
Given: \(\textsf{y = 30 - 3x}\)
Find: \(\textsf{Match the table of values with the equation}\)
Solution: First we must understand what form our equation is in and what each of the numbers represent. This form is known as the slope intercept form which is formatted as y = mx + b. Our equation is slightly re-ordered but we can change that by converting it to y = -3x + 30 where m is equal to -3 and b is equal to 30. Let us know talk about what m and b are. M is the slope of the equation or also known as the rise/run or the change in y over the change in x. B is the y-intercept which is basically the value of y when x is equal to 0. In this case, our b is equal to 30.
Looking at the tables we can see what the value of y when x is equal to 0 for each table. The only table that matches up stating that y is equal to 30 when x is 0 is the top right table.
You do not have to go any further but if you want to confirm that the slope is as expected we can do the following: \(\frac{y_2\ -\ y_1}{x_2\ -\ x_1}\).
Plug in the values and simplify
\(\frac{48\ -\ 30}{-6\ -\ 0}\)\(\frac{18}{-6}\)\(-3\)Therefore, we can confirm that the slope matches up with the given equation as well. So, the final answer would be that the top right table would correspond to the equation y = 30 - 3x.
which equation represents a linear function?
Answer:
Equation 3
Step-by-step explanation:
Answer:Equation 3
linear functions dont have exponents
Step-by-step explanation:
For the equation f(x)=1.9(0.41)*, state the initial value C, the growth or decay factor a, and percent change R for each unit increase in x.
C=(Type an integer or a decimal.)
Initial value C is 1.9, Decay factor =0.41 and Growth factor = 0.59 when the function f(x)=1.9(0.41)ˣ.
Given that,
The equation f(x)=1.9(0.41)ˣ.
We have to state the initial value C, the growth or decay factor a, and percent change R for each unit increase in x.
We know that,
What is growth and decay?In order to translate their graphs over the 2D coordinate plane, I will offer the vertex form of an exponential equation for both the growth and decay functions.
In the case of growth, f(x) = a(1+r\()^{x-h}\)+k, where b = 1+r
Decay is defined as f(x)=a(1-r)(x-h\()^{x-h}\)+k, where b=1-r.
Consider the function f(x)=1.9(0.41)ˣ.
We write as
f(x)=1.9(1-0.59)ˣ
So, initial value C is 1.9
Decay factor =0.41
Growth factor = 0.59
Therefore, Initial value C is 1.9, Decay factor =0.41 and Growth factor = 0.59 when the function f(x)=1.9(0.41)ˣ.
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50 POINTS ASAP!!!!!!!!!!!!!!!! 50 POINTS ASAP!!!!!50 POINTS ASAP!!!!!50 POINTS ASAP!!!!!!!!!!!!!!!! 50 POINTS ASAP!!!!!50 POINTS ASAP!!!!!
Identify the transformation that moves quadrilateral ABCD to A'B'C'D'.
Answer:
C - Reflect over the x-axis
Step-by-step explanation:
This is a reflection over the x-axis.
To remember the difference between reflectinon over the x-axis and reflectino over the y-axis, memorize this.
If you reflect over the x-axis, the x value of the reflected point stays the same. (only the y is multiplied by -1)
If you reflect over the y-axis, the y value of the reflected point stays the same. (only the x is multiplied by -1)
Roation about the origin involves multiplying both x and y by -1. (x and y change)
Create an equation that has a solution of 6.
A washer and dryer cost a total of $980. The cost of the washer is three times the cost of the dryer. Find the cost of each item.
Answer:
Washer $735
Dryer $245
Step-by-step explanation:
If x is the cost of the washer, and y is the cost of the dryer, then:
x + y = 980
x = 3y
Solve with substitution.
3y + y = 980
4y = 980
y = 245
x = 735
Find the value of y for the given value of x.
y=2x3;x=3
y=
Answer:
54
Step-by-step explanation:
2x^3
2(3)^3
2*3*3*3
54
3. Error Analysis Isabel says that the equation x - 2 = -(x - 2) has no
solution because a number can never be equal to its opposite. Explain the
error Isabel made
Given:
The equation is
\((x-2)=-(x-2)\)
Isabel says that the given equation has no solution because a number can never be equal to its opposite.
To find:
Isabel's mistake.
Solution:
Her reason "a number can never be equal to its opposite" is not correct.
Zero is a number that can be equal to its opposite.
So, the given equation has solution for which LHS=RHS=0.
We have,
\((x-2)=-(x-2)\)
\(x-2=-(x)-(-2)\)
\(x-2=-x+2\)
Add x and 2 on both sides.
\(x-2+x+2=-x+2+x+2\)
\(2x=4\)
Divide both sides by 2.
\(x=\dfrac{4}{2}\)
\(x=2\)
So, the given equation has a solution x=2.
The diagram shows a shape made from a solid cube and a solid cylinder.
The cube has sides of length 8.7 cm.
The cylinder has a radius of 2.7 cm and a height of 4.9 cm.
Calculate the total surface area of the solid shape.
Give your answer correct to 3 significant figures.
The total surface area of the solid shape made from the cube and cylinder is approximately 583.31 cm².
How to calculate the areaThe side length of the cube is 8.7 cm, so the surface area of one face is A = 8.7²
= 75.69 cm²
Since there are six faces, the total surface area of the cube is 6 * 75.69 = 454.14 cm²
Since there are two circular bases, the total surface area of the bases is 2 * 22.91 = 45.82 cm².
In this case, the radius of the cylinder is 2.7 cm and the height is 4.9 cm, so the curved surface area is A_curved = 2 * π * 2.7 * 4.9 ≈ 83.35 cm².
Total surface area = surface area of the cube + surface area of the cylinder
Total surface area = 454.14 cm² + 45.82 cm² + 83.35 cm²
Total surface area ≈ 583.31 cm²
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Please help,, Consider the sequence of steps to solve the equation: 5(x - 3) = 7x2 Step 1 ⇒ 10(x - 3) = 7x Step 2 ⇒ 10x - 30 = 7x Step 3 ⇒ 3x - 30 = 0 Step 4 ⇒ 3x = 30 Step 5 ⇒ x = 10 Identify the property of equality which yields Step 5.
Summary: The solution to the equation (x - 3)(x + 9) = -27 is x = 0 and x = -6.
Graph the line containing the given pair of points and find
the slope.
(-5,5), (0,1)
Answer: See attached for the graph. The slope is \(\frac{-4}{5}\).
Step-by-step explanation:
First, we will graph the points.
See attached.
Next, we will find the slope. This can be done with "rise over run". We will start at (-5, 5) and count 4 down and 5 right to (0, 1). This gives us a slope of;
\(\frac{-4}{5}\)
Round 765.2 to nearest hundreds
30-60-90 , how do I get the short leg , long leg and hypotenuse
the given triangle is a right angle triangle.
in the right angle triangle, we know the sine rule
\(\sin \theta=\frac{perpendicular}{hypontenuse}\)\(\begin{gathered} \sin 60=\frac{12}{y} \\ \frac{\sqrt[]{3}}{2}=\frac{12}{y} \\ y=\frac{24}{\sqrt[]{3}} \end{gathered}\)\(\begin{gathered} or\text{ } \\ y=\frac{24}{\sqrt[]{3}}\times\frac{\sqrt[]{3}}{\sqrt[]{3}}=\frac{24\sqrt[]{3}}{3} \\ y=8\sqrt[]{3} \end{gathered}\)Now cosine rule,
\(\cos \theta=\frac{base}{hypontenuse}\)\(\begin{gathered} \cos 60=\frac{x}{8\sqrt[]{3}} \\ \frac{1}{2}=\frac{x}{8\sqrt[]{3}} \\ x=4\sqrt[]{3} \end{gathered}\)A quadratic equation, y = ax^2 - 6x + 10, has exactly one real root. Calculate the value of a.
Answer:
a = 0.9
Step-by-step explanation:
For the quadratic equation \(\boxed{ax^2 + bx + c = 0}\) to have exactly one real root, the value of its discriminant, \(\boxed{b^2 - 4ac}\), must be zero.
For the given equation:
\(y = ax^2 - 6x + 10\),
• a = a
• b = -6
• c = 10.
Substituting these values into the formula for discriminant, we get:
\((-6)^2 - 4(a)(10) = 0\)
⇒ \(36 - 40a = 0\)
⇒ \(36 = 40a\)
⇒ \(a = \frac{36}{40}\)
⇒ \(a = \bf 0.9\)
Therefore the value of a is 0.9 when the given quadratic has exactly one root.
Jack is two years older than bob. If bob is x years old, what is the sum of jacks age and bobs age
Expression 2(x+1) represents the sum of bob and Jacks age.
What is Expression?An expression is combination of variables, numbers and operators.
Given,
Bob is x years old,
Jack is two years older than bob=x+2
we need to find the sum of jacks age and bobs age
x plus x plus two
x+x+2
Two times of x plus two
2x+2
Take two as common, two times of x plus one
2(x+1)
Hence expression 2(x+1) represents the sum of bob and Jacks age.
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1. A boat is 15 ft away from a point perpendicular to the shoreline. A person stands at a point down the shoreline so that a 65° angle is formed between the closest point to the boat, the person, and the boat. How far is the person from the boat? Round your answer to the nearest tenth of a foot. Show your work.
The person is 16. 55ft from the boat
How to determine the distanceFrom the information given, we have that;
The boat is 15ft away from the shoreline65° angle is formed between the closest point to the boatTo determine the distance between the boat and the person, let's use the trigonometric identity, sine
sine θ = opposite side/hypotenuse side
Given that;
Opposite side = 15ftHypotenuse side = dθ = 65 degreeSubstitute the value
sin 65 = 15/d
cross multiply
d = 15/sin 65
Find the value
d = 15/0.9063
divide the values
d = 16. 56 ft
Hence, the value is 16.56ft
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(15 POINTS) Select the correct answer.
Which equation has infinitely many solutions?
A. -5(x + 2) = -4x - 12 - X + 2
B. 3x – 4 + 2x = 5(x-4)
C. 5(x + 7) = -5(X - 7)
D. 6x + 2 - x = -2x - 2 + 7 x
PLEASE HELP I AM BEGGING YOU...IT'S FOR MY TEST...I WILL GIVE BRAINLIEST AND FOR THE FIRST AND CORRECT ANSWER
Reflections on a Coordinate Grid
Predict the coordinates of the new vertices when each shape is reflected across the y-axis
Answer:
a=(-4,0)
b=(2,3)
c=(-5,1)
Step-by-step explanation:
So since you are replicating it on the y-axis, you won't need to change anything on the x axis. Just conut until the centerpoint and replicate that on the y axis
î 10 Bedroom Bath 1 Living Room Kitchen 18 1 15 8 a) Area of her living room = ft2 b) Area of her entire apartment = 644 ft2 Blank 1: Blank 2: 644
PLEASE HELP FAST!! 1) Construct the perpendicular bisector of the given
line segment.
2) Construct the perpendicular bisector of the side
opposing A.
Answer:
1) The perpendicular bisector of the given line segment is 90 degrees
Step-by-step explanation:
I don't know the second one