Answer:
36/5 as a decimal is 7.2
Step-by-step explanation:
In the fraction 36/5, 36 is the numerator and 5 is the denominator, the fraction bar means "divided by". Therefore, the fraction 36/5 is same as "36 divided by 5" or "36 ÷ 5".
When we calculated 36 divided by 5, we found that 36/5 in decimal form is:
36 ÷ 5 = 7.2
Therefore, the decimal form of 36/5 is 7.2
The length of a rectangle is three more than double the width. if the perimeter is 78 inches, find the dimensions.
The length of a rectangle is 27 inches and the width of a rectangle is 12 inches.
Given that, the length of a rectangle is three more than double the width and the perimeter of a rectangle = 78 inches.
We need to find the dimensions of the rectangle.
What is the perimeter of a rectangle?The perimeter of a rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).
Let the width of the rectangle be x.
Then, length=2x+3
Now, perimeter=2(2x+3+x)
⇒ 78=2(3x+3)
⇒ 3x+3= 39
⇒ 3x=36
⇒ x=12 inches
So, width=12 inches and length=2x+3=27 inches
Therefore, the length of a rectangle is 27 inches and the width of a rectangle is 12 inches.
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The sum of 2, 6, and a number amounts to 15. Find the number.
Please help with math question
Answer:
5b+35
Step-by-step explanation:
5*b=5b
5*7=35
Which of the following options are examples of how you can name the angle?
Answer:
3rd and 4th
Step-by-step explanation:
Answer:
∠C and ∠DCB and ∠BCD
Step-by-step explanation:
We can name an angle either using one letter that represents it or use all three letters together.
When we use a single letter to represent or point an angle we must choose the center letter, C in this case.
And when we use all three letter to point an angle we must place the center letter, again C in this case, in the middle
Therefore the angle can be named as
∠C or ∠DCB or ∠BCD
In the figure, angles ABC and AST are right angles. If AC = 35, AT = 11, and BT = 9, then what is AS?
AS=6.28
First, draw a line joining C and T;
Two triangles TBC and TSC are formed;
Also, AC=35, AT=11,BT=9;
AB=AT+BT=11+9=20
Using pythagoras theorem;
AB² + BC² = AC²
BC²=35²-20²=825
Using pythagoras theorem on triangle TBC;
BC² + TB²= CT²
825 + 9²=CT²
CT²=906;
In triangle CST, using pythagoras theorem;
CS²+ST²=CT²=906 -1
In triangle AST, using pythagoras theorem;
AS²+ST²=AT²=11²=121 -2
Subtract 1 from 2;
AS²+ST²-CS²-ST²=121-906
AS²-CS²=-785
AS²-(AC-AS)²=-785
AS²-(35-AS)²=-785
AS²-AS²-35²+70AS=-785
AS=6.28
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Eleri has 97 cents credit on her phone it costs 6 cents to send a message. How many people can eleri send a message to? Explain how you worked it out.
please and thank you.
Calculate the surface area of the object provided.
A. 56 cm
B. 64cm³
C. 80cm²
D. 112cm²
Answer:
112cm^2
Step-by-step explanation:
A=2(wl+hl+hw)=2·(2·8+4·8+4·2)=112
Answer: B. 64 cm³
Step-by-step explanation:
Let's lenth of the object set is a, width - b and height - h
Thus,
V=abh
a=8 cm b=2 cm h=4 cm
Hence,
V=8*2*4
V=64 cm³
Solve:
4(x+3)-2=6
SHOW ALL WORK
Answer:
[tex] \sf \large \: x=−1[/tex]
Step-by-step explanation:
Let's solve your equation step-by-step.
4(x+3)−2=6
Step 1: Simplify both sides of the equation.
4(x+3)−2=6
(4)(x)+(4)(3)+−2=6(Distribute)
4x+12+−2=6
(4x)+(12+−2)=6(Combine Like Terms)
4x+10=6
4x+10=6
Step 2: Subtract 10 from both sides.
4x+10−10=6−10
4x=−4
Step 3: Divide both sides by 4.
4x/4 = −4/4
x=−1
Explain why researchers formulate a null hypothesis in addition to a hypothesis when designing an experimental study.
A null hypothesis outlines what a researcher should see if the tested hypothesis is incorrect. In essence, it presents an "alternative" theory to the first.
What is the null hypothesis?The null hypothesis is a type of hypothesis that explains the population parameter and is used to examine if the provided experimental data are reliable. Depending on whether the population or sample under consideration is viable, this hypothesis is either rejected or not. Or to put it another way, the null hypothesis is a hypothesis that assumes that the sample observations are the result of chance. It is claimed to be a claim made by surveyors who wish to look at the data.
The basic idea behind null hypothesis testing is to gather data and calculate the probabilities of a particular set of data during an experiment on a random sample, presuming that the null hypothesis is correct.
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A rectangular sheet of tin measures 20 inches by 12 inches. suppose you cut a square out of each corner and fold up the sides to make an open-topped box. what size square should you cut out to maximize the box's volume? show all work to earn credit.
The volume of the box is maximized when a 6 x 6 inch or 10 x 10 inch square is cut from the corners of the rectangular sheet.
Volume of rectangle:
The volume of an object is the amount of space occupied by the object or shape, which is in three-dimensional space. It is usually measured in terms of cubic units.
The formula for Volume of the rectangle is
V = l x b x h
where
l represents the length
b represents the breadth
h represents the height.
Given,
A rectangular sheet of tin measures 20 inches by 12 inches. suppose you cut a square out of each corner and fold up the sides to make an open-topped box.
Here we need to find the volume of the box is maximized when a square is cut from the corners of the rectangular sheet.
Here we have the following values:
h = x
l = 20 - 2x
b = 12 - 2x.
Here we have to subtract two times of x value because in the question they said that we have to cut a square from it.
Apply the values on the volume formula then we get,
=> V = (20 - 2x) x (12 - 2x) x (x)
=> V = [240 - 40x - 24x + 4x²] x (x)
=> V = [240x - 64x² + 4x³]
Now differentiate:
=> V' = 240 - 64x + 4x²
Simplify and order the equation,
Then we get,
=> V' = x² - 16x + 60
When we factorize the equation then we get,
=> V' = x² - 6x - 10x + 60
Take the common term out of it,
=> V' = x (x-6) -10(x -6)
Therefore, the value of x is, either 6 or 10.
Now you need to look at your solutions.
At x=6, the volume is,
=> V = (20 - 2(6)) x (12 - 2(6)) x (6)
=> V = (20 - 12) x (12 - 12) x 6
=> V = 8 x 0 x 6
=> V = 0
our corner squares devour the entire piece of cardboard and you are left with zero volume; so that solution is a minimum.
Now at the value of x = 10,
The volume is
=> V = (20 - 2(10) x (12 - 2(10)) x (10)
=> V = (20 - 20) x (12 - 20) x 10
=> V = 0 x (-8) x 10
=> V = 0
So, in both cases we have 0 as minimum volume. So, we can take any one of the value to get the maximum out of it.
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Parallelogram be is a scaled copy of parallelogram U what is the value of w ( please answer ASAP I'm in a rush)
13⅘ + (2.6)
11.2
16.0
-10.8
-11.2
Step-by-step explanation:
[tex] {13}^{ \frac{4}{5} } + 2.6 \\ [/tex]
[tex] \sqrt[5]{(13) {}^{4} } + 2.6 \\ [/tex]
[tex] \sqrt[5]{28561} + 2.6 \\ [/tex]
[tex]7.78 + 2.6 = 10.38 \\ [/tex]
385 people get on an empty train at a station. At the first stop, 264 more people get on the train, and 89 people get off. There are no more stops until the train reaches it final destination, where everybody gets off the train.
How many people get off the train at the final destination?
385 people get on an empty train at a station. At the first stop, 264 more people get on the train, and 89 people get off. There are no more stops until the train reaches it final destination, where everybody gets off the train.
560 is the answer
560 people get off the train at the final destination.
Given that 385 people get on an empty train. At the first stop, 264 more people get on, and 89 people get off.
There are no more stops until the train reaches it final destination,
We need to find the number of the people who get off the train at the final destination.
To find out how many people get off the train at the final destination, let's break down the information given step by step.
385 people get on the empty train at the station.
At the first stop, 264 more people get on the train, bringing the total number of people on the train to 385 + 264 = 649.
Additionally, 89 people get off the train at the first stop.
After the first stop, there are no more stops until the final destination.
To find out how many people get off at the final destination, we need to subtract the number of people who got off at the first stop from the total number of people on the train after the first stop.
Total number of people on the train after the first stop = 649 (from step 2)
People who got off at the first stop = 89 (from step 3)
Number of people who get off at the final destination = Total number of people on the train after the first stop - People who got off at the first stop
Number of people who get off at the final destination = 649 - 89 = 560
Therefore, 560 people get off the train at the final destination.
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What is the graph of y = -3/4x – 2?
In the graph of y = -3/4x – 2 is represent linear equation.
What in mathematics is a linear equation?
There are only one or two variables in a linear equation. No variable can be multiplied by a number larger than one or used as the denominator of a fraction in a linear equation. All of the points fall on the same line when you identify the values that together make a linear equation true and plot those values on a coordinate grid.A linear equation with one variable is one that contains just one variable. It has the formula Ax + B = 0, with A and B being any two real numbers and x being an ambiguous variable with only one possible value. One such linear equation in one variable is 9x + 78 = 18.The graph is represent a linear equation .
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f(x) = 12x² - 81, find f(0).
Answer:
f(0) = - 81
Step-by-step explanation:
f(0) means what is the value of f(x) when x = 0
substitute x = 0 into f(x)
f(0) = 12(0)² - 81 = 12(0) - 81 = 0 - 81 = - 81
Which value of x makes the equation 3.5(x+20)=6+.75(x+1) true?
Answer:
x = -23
Step-by-step explanation:
3.5(x+20) = 6 + .75(x + 1) Multiply the terms inside the parentheses on the left by 3.5 and the parentheses on the left by .75
(3.5)x +(3.5)(20) = 6 + (.75)x +(.75)(1)
3.5x + 70 = 6 + .75x + .75 Combine the 6 and .75 on the right side
3.5x + 70 = 6.75 + .75x Subtract .75x from both sides of the equation
2.75x + 70 = 6.75 Subtract 70 from both sides of the equation
2.75x = -63.25 Divide both sides by 2.75
x = -23
Check
3.5(-23+20) = 6 + .75(-23 + 1)
3.5(-3) = 6 +.75(-22)
-10.5 = 6 +(-16.5)
-10.5 = -10.5
Answer:
x = -23
Step-by-step explanation:
3.5(x+20)=6+.75(x+1)
3.5x + 70 = 6 + .75x + .75
3.5x+70=.75x+6.75
2.75x+70=6.75
2.75=−63.25
divide^
x = -23
Two similar bottles are shown.
The smaller bottle can hold 500 ml of water. How much water can the larger bottle hold? + 2³ 15 cm 主要 66% E 21 cm
The larger bottle holds a 700ml volume of water.
What is volume?
Volume is a measure of enthralled three-dimensional space. It's frequently quantified numerically using SI-deduced units or by colorful Homeric units. The description of length is interrelated with volume. Volume is the volume of three-dimensional space enthralled by a liquid, solid, or gas. Common units used to express volume include liters, boxy measures, gallons, milliliters, ladles, and ounces, however, numerous other units live. In mathematics,' Volume' is a fine volume that shows the quantum of three-dimensional space enthralled by an object or an unrestricted face.Two(2) bottles given in the pic are similar(no difference)
Therefore, the volume/cm height of both(2) bottles will proportional
By using the proportionality rule, [tex]\frac{15}{500} =\frac{21}{x}[/tex]
x = 700ml(seven hundred)
Hence, the correct answer is 700ml.
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Find parametric equations and symmetric equations for the line of intersection of the given planes. x + y + z = 5, x + z = 0
The next set is the parametric equations of the same line .
x = t, y = 5 and z = -t .
What is the meaning of parametric and non parametric?
The assumptions behind parametric statistics relate to the population's distribution from which the sample was drawn. Since no presumptions are made while using nonparametric statistics, data can be gathered from samples that do not fit any particular distribution.x + y + z = 5, x + z = 0
the line satisfies
x + z = 0 , y = 5
thus
x = t, y = 5 and z = -t .
the first one is technically already the symmetric equations of the line.
thus:
x = -z ; y = 5
the next set is the parametric equations of the same line .
x = t, y = 5 and z = -t .
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Nine added to twice a number, x, is -5
what is the equation?
what is the solution?
Answer: -7
Step-by-step explanation: -7 times 2= -14, -14 +9= -5
A distribution of scores in which almost the entire class scored very high, but a few students scored fairly low would be ______.
A distribution of scores in which almost the entire class scored very high, but a few students scored fairly low would be representing a negatively skewed distribution.
What is the skewness?A real-valued random variable's probability distribution's asymmetry can be quantified by looking at how skew it is around its known as skewness.
There are three types of probabilities of a value can be:
Positively skewed
negatively skewed
unskewed
From the given question, the distribution of scores in which almost the entire class scored very high, but a few students scored fairly low would be representing a negatively skewed distribution.
Therefore the correct answer would be an option (D)
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Your question is incomplete, probably the missing part is:
A distribution of scores in which almost the entire class scored very low, but a few students scored fairly high would be ______.
a. normally distributed
b. positively skewed
c. unskewed
d. negatively skewed
Given m|n, find the value of x.
Answer:
127°
Step-by-step explanation:
The angle that's represented with x and the angle with the measure 127 are alternate exterior angles because line m and line n are parallel.
And alternate angles has equal measures so if one is 127 then so is the other.
Therefore the value of x = 127
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Answer:
Step-by-step explanation:
1. a. coordinates of polygon B: (-2, 1), (-4, 1), (-2, 3), (-4, 4)
b. coordinates of polygon C: (-2, -1), (-4, -1), (-2, -3), (-4, -4)
c. coordinates of polygon D: (-2, 1), (-4, 1), (-2, 3), (-4, 4) -> same as polygon B because you after reflecting B to C, they are asking you basically reflect it back to B
2. C (-2, -1)
A composite figure is shown.
6 ft
6 ft
6 ft
20 ft
What is the total surface area of the figure?
A. 180 sq ft
B. 60 sq ft
C. 480 sq ft
D. 720 sq ft
4 ft
The total surface area of the given figure is 720 ft² that is option (D).
The Lateral Surface Area( LSA) of an object is the area covering all the sides of the object except it top and bottom .
Let us divide the given Composite figure into three parts ,
Part(a) = top part having shape of pyramid
First we will calculate the LSA of the top pyramid.
Given that
base = 6ft
perpendicular distance = 4ft
Slant height(l) = [tex]\sqrt{(\frac{base}{2} )^{2} +(perpendicular . distance )^{2} }[/tex]
On substituting the values we get
l=√(3²+4²)
l=√25
l=5 ft
LSA of pyramid = (1/2)* perimeter of base * slant height
Substituting the values we get ;
=(1/2)*(4*6)*5
=60 ft² ....(i)
Part (b)
the 2nd part is a rectangular prism with length = 20 ft
and breadth = 6 ft
Surface area of rectangular prism = 4*Area of side
=4*20*6
=480 ft² ...(ii)
Part(c)
The last part is a cube with only 5 sides of side 6ft.
Surface Area of the cube = 5*Area of side
=5*6*6
=180 ft² ....(iii)
Total surface area of the figure= LSA of pyramid + Surface area of rectangular prism + Surface Area of the cube
Substituting the values from equation (i) , (ii) and (iii) we get ,
Total surface area of the figure = 60+480+180
=720 ft²
Therefore , the total surface area of the given figure is 720 ft².
hence option (D) 720sq ft is correct.
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The expression √81-√100 represents the number of feet between home plate and first base. What is the distance, in feet, between home plate and first base?
The distance between home plate and first base is -1 feet
How to determine the numberFrom the information given, we have that;
The expression for the number of feet between home plate and first base is given as;
√81-√100
Where;
√81 is the number of feet at home plate√100 is the number of feet at the first baseTo determine the distance, we take find the square root of the numbers and substitute, we have;
9 - 10
Find the difference
-1 feet
Thus, the distance between home plate and first base is -1 feet
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Evaluate.
10/1⋅(−4)
Enter your answer in the box.
Answer:
Step-by-step explanation:
-40
Melissa rents out her barn for weddings and special events. She charges $550 for the space plus $10 per hour for utilities. The equation that represents this situation is y=10+550
Complete the following statements.
The variable,x, in this context is defined as [Drop Down 1]. The parameter is the coefficient of x, which is [Drop Down 2], and is [Drop Down 3]. The constant [Drop Down 4] is [Drop Down 5]. The variable that is the output in this context is [Drop Down 6] and represents [Drop Down 7].
drop down 1:
the hourly rate
the base fee to rent
the number of hours the barn is rented
the total amount charged to rent the barn for a certain number of hours
drop down 2:
y
10
550
drop down 3:
the hourly rate
the base fee to rent
the number of hours the barn is rented
the total amount charged to rent the barn for a certain number of hours
drop down 4:
y
10
550
drop down 5:
the hourly rate
the base fee to rent
the number of hours the barn is rented
the total amount charged to rent the barn for a certain number of hours
drop down 6:
y
10
550
drop down 7:
the hourly rate
the base fee to rent
the number of hours the barn is rented
the total amount charged to rent the barn for a certain number of hours
Answers:
Choice C) the number of hours the barn is rentedChoice B) 10Choice A) the hourly rateChoice C) 550Choice B) the base fee to rentChoice A) The variable yChoice D) total amount charged========================================================
Explanation:
The equation is y = 10x+550
If x = 0, then it leads to y = 550. This is the smallest amount paid, and it's the base fee. Think of it like the fee to get in the door. This is the y intercept of the equation.
On top of this base fee is the $10 per hour fee for utilities. Each time an hour goes by, add on another extra $10. So we attached x to this to reflect what's going on. This is the slope of the equation, aka rate of change.
It might be helpful to compare y = mx+b to y = 10x+550
m = 10 = slope = how things change
b = 550 = y intercept = starting point
----------
Example:
Let's say you rented the barn for 2 hours.
That means x = 2 and 10x = 10*2 = 20 extra dollars is added on top of the base fee of $550
total = 20+550 = 570
This is what the steps could look like when plugging in x = 2
y = 10x+550
y = 10*2 + 550
y = 20 + 550
y = 570
Therefore, renting the barn for x = 2 hours leads to a total cost of y = 570 dollars.
Find the equation of the line.
Use exact numbers.
y=
#+
what is the formula of (a+b)²
Hey there!
Finding the the answer to the [Binomial]
(a + b)^2
CONVERT:
= (a + b)(a + b)
DISTRIBUTE
= a(a) + a(b) + b(a) + b(b)
= a^2 + ab + ab + b^2
COMBINE the LIKE TERMS
= (a^2) + (ab + ab) + (b^2)
= a^2 + ab + ab + b^2
= a^2 + 1ab + 1ab + b^2
= a^2 + 2ab + b^2
Therefore, your answer should be:
a^2 + 2ab + b^2
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
If the length of the shorter arc AB is 22cm and C is the center of the circle then the circumference of the circle
The circumference of the circle with arc AB as 22 cm and C as the center will be 176 cm.
We are given that:
Length of the shorter arc forming an angle of 45° with the center = 22 cm
AB = 22 cm
C is the center of the circle.
We know that the length of the arc is calculated as:
Length of an Arc = θ × (π / 180) × r
22 = 45 × (3.14 / 180) × r
22 = 0.785 r
r = 22 / 0.785
r = 28.0255
Circumference = 2 π r
Circumference = 2(3.14) (28.0255)
C = 176 cm
Therefore, we get that, the circumference of the circle with arc AB as 22 cm and C as the center will be 176 cm.
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which of the following pairs of ratios form a proportion? a. 9 boys to 5 girls and 12 boys to 8 girls
Answer:
12 to 8
Step-by-step explanation:
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