Answer: 19 is my answer 19 is left over
to properly measure the volume of water in a calibrated glass device, such as a graduated cylinder, one should________
The lowest point should be used for measurement. To acquire a correct reading, students must read the meniscus at eye level. In order to read the meniscus at eye level, students need first set the graduated cylinder on the table and then stoop.
A measuring cylinder, often referred to as a graded cylinder, a cylinder measuring cylinder, or a mixing cylinder, is a piece of lab apparatus used to gauge the quantity of fluids, chemicals, or solutions used during a typical lab session. Compared to common laboratory flasks and beakers, graduated cylinders offer higher precision and accuracy. The graduated cylinder is a scientific tool that employs the metric system rather than the American standard system, so measurements are made in millilitres rather than ounces. The volume of an object or quantity of liquid is measured using a graduated cylinder, a common piece of laboratory glassware. It is a glass cylinder with side markings resembling those on a measuring cup, as its name suggests.
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if a car wheel has a circumference of 2.51 how many full rotations will it make in 10,000 miles.
The wheel will make approximately 2,520,718 full rotations in 10,000 miles.
First, we need to find the distance that the wheel will travel in one revolution:
distance traveled in one revolution = circumference of wheel
= 2.51 units
Next, we need to find the number of revolutions the wheel will make in 10,000 miles. We can use the formula:
number of revolutions = distance traveled ÷ distance traveled in one revolution
Since we know that the car will travel 10,000 miles, we can convert this to the distance that the wheel will travel:
distance traveled = circumference of wheel × number of revolutions
10,000 miles = 5280 feet/mile × 12 inches/foot × 10,000 miles = 6,336,000 inches
Plugging these values into the formula gives:
number of revolutions = 6,336,000 inches ÷ 2.51 inches/revolution
= 2,520,718.12 revolutions
Therefore, the wheel will make approximately 2,520,718 full rotations in 10,000 miles.
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√4(x-5)^2=40 HELPPPPPPPPPPPPPP
Answer:
x = 15
Step-by-step explanation:
\((\sqrt{4(x -5}) ^{2}\) = 40 If you square the square root of something, it would end up being itself.
4(x - 5) = 40
4x - 20 = 40 Add 20 to both sides
4x = 60 Divide both side by 4
x = 15
Answer:
\(\sqrt{4}(x-5)^2=40 \implies x=5 +2 \sqrt{5}, \quad x=5-2 \sqrt{5}\)
\(\sqrt{4(x-5)^2}=40 \implies x=-15, \quad x=25\)
Step-by-step explanation:
Given equation:
\(\sqrt{4}(x-5)^2=40\)
Simplify √4 = 2 :
\(\implies 2(x-5)^2=40\)
Divide both sides by 2:
\(\implies (x-5)^2=20\)
Square root both sides:
\(\implies x-5=\pm \sqrt{20}\)
Simplify the right side of the equation:
\(\implies x-5=\pm \sqrt{4 \cdot 5}\)
\(\implies x-5=\pm \sqrt{4} \sqrt{5}\)
\(\implies x-5=\pm 2 \sqrt{5}\)
Add 5 to both sides:
\(\implies x=5 \pm 2 \sqrt{5}\)
Therefore, the solutions are:
\(x=5 +2 \sqrt{5}\)\(x=5 -2 \sqrt{5}\)---------------------------------------------------------------------------------------
Given equation:
\(\sqrt{4(x-5)^2}=40\)
Square both sides:
\(\implies 4(x-5)^2=1600\)
Divide both sides by 4:
\(\implies (x-5)^2=400\)
Square root both sides:
\(\implies x-5=\pm \sqrt{400}\)
\(\implies x-5=\pm 20\)
Add 5 to both sides:
\(\implies x=5-20=-15\)
\(\implies x=5+20=25\)
Therefore, the solutions are:
\(x = -15\)\(x = 25\)Dont answer this PLEAS
Answer:
why? also the answer is 1.6y+y-4/15y+7/6y=21/3
We move all terms to the left:
1.6y+y-4/15y+7/6y-(21/3)=0
Domain of the equation: 15y!=0
y!=0/15
y!=0
y∈R
Domain of the equation: 6y!=0
y!=0/6
y!=0
y∈R
We add all the numbers together, and all the variables
1.6y+y-4/15y+7/6y-7=0
We add all the numbers together, and all the variables
2.6y-4/15y+7/6y-7=0
We calculate fractions
2.6y+(-24y)/90y^2+105y/90y^2-7=0
We multiply all the terms by the denominator
(2.6y)*90y^2+(-24y)+105y-7*90y^2=0
We add all the numbers together, and all the variables
(+2.6y)*90y^2+(-24y)+105y-7*90y^2=0
We add all the numbers together, and all the variables
105y+(+2.6y)*90y^2+(-24y)-7*90y^2=0
Wy multiply elements
-630y^2+105y+(+2.6y)*90y^2+(-24y)=0
We get rid of parentheses
-630y^2+105y+(+2.6y)*90y^2-24y=0
We add all the numbers together, and all the variables
-630y^2+81y+(+2.6y)*90y^2=0
Step-by-step explanation:
Wich is the correct ratio representation of the books to pens?
Answer:
6/5
Step-by-step explanation:
There is 6 books and there is 5 pens, ans since it is books to pens you put the number of books on top and the number of pens on the bottom.
Which problem could be solved using this equation? 12x + 3 = 39
A. Three eggs fewer than some dozen make a total of 39 eggs. How many dozens are there?
B. Three inches and some number of feet have a total measurement a of 39 inches. How many feet are there?
C. One dozen regular milk cartons and some 3-packs of chocolate milk make a total of 39 cartons. How many 3-packs are there?
D. An order with 12 books and 3 magazines is in a box of 39 items. How many other items are in the box?
Answer:
B) Three inches and some number of feet have a total measurement a of 39 inches. How many feet are there?
Step-by-step explanation:
A is wrong since you add 3, not remove it.
C is wrong because 12 is the one being multiplied, not 3
D is wrong because x has to be the same thing as 12, just how many of it there are.
Please give brainliest if I helped! :)
Adam purchased some items at the school store. He bought 3 pencils for $0.15 each and 5 single-subject notebook
If these items cost a total of $6.45, what was the cost of each notebook?
O A. $1.20
B. $1.26
O c. $1.29
OD. $1.38
Answer:
The answer is A
Step-by-step explanation:
Fist multiply 3 and .15 to get .45 for 3 pencils. Then subtract .45 from 6.45 and get 6. Then divided 6 by 5 to get 1.2 for each book
i think the answer is a: $1.20
my work:
3 x 0.15 = 0.45.
6.45 - 0.45 = 6.00
6.00 / 5 = 1.20
and i checked my work by doing 1.20 x 5 + 0.40 = $6.45.
Someone Please Help Me!!. If the radius is 14 cm and the area of sector of the circle are 18.48 cm2, calculate the angle at the centre of the circle.
Answer: approximately 11 degrees
======================================================
Explanation:
If the radius is r = 14, then the area of the full circle is
A = pi*r^2
A = 3.14*14^2
A = 615.44
The area of the full circle is roughly 615.44 cm^2
However, the pizza slice area is only 18.48 cm^2
Divide the two values: (18.48)/(615.44) = 0.030027
The pizza slice is roughly 3% of the full circle.
Multiply that decimal result with 360 to get the final answer
0.030027*360 = 10.80972
That rounds to approximately 11 degrees
-------------
Here's another example:
Let's say the full circle area was 100 cm^2 and the pizza slice was 25 cm^2. We can see that 25/100 = 0.25 = 25% of the full area is the pizza slice
25% of 360 = 0.25*360 = 90 degrees would be the central angle, which is basically what we expect when we cut the circle into 4 equal slices.
After one day, you read 40 pages of a book. On each
following day, you read 10 more pages.
Write an equation in point-slope form to model the number
of pages you have read, y, after a days.
Then use your equation to determine the number of pages
of the book will you have read after 9 days.
pages
The equation of the number of pages is y = 40 + 10x and for 9 days, you read 130 pages
How to determine the equation of the number of pages?From the question, we have
Initial number of pages = 40
Rate per day = 10 pages per day
The equation of the number of pages is then represented as
y = Initial number of pages + Rate per day x Number of days
Substitute the known values in the above equation, so, we have the following representation
y = 40 +10 * x
Evaluate
y = 40 + 10x
For 9 days, we have
x = 10
This gives
y = 40 +10 * 9
Evaluate
y = 130
Hence, the number of pages is 130
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Use the point-slope equation to identify the slope and the coordinates of a point on the line y - 4 = 7 (x-1). The slope of the line is A point on the line is
Answer:
slope is 7 and point on line is (1, 4 )
Step-by-step explanation:
the equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b ) a point on the line
given line A has equation in point- slope form of
y - 4 = 7(x - 1) , then
slope of line is 7 and a point on the line is (1, 4 )
I'll give you brainlist if u help :)A certain culture of yeast increases by 50% every three hours. A scientist places 9 grams of the yeast on a culture dish. write the explicit and recursive formulas for the geometric sequences formed by the growth of the yeast.
Answer:
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Answer:
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hope it helps you
I need help asappppppp please help me answer this question
9514 1404 393
Answer:
solutions: (1, -2), (5, 2)not solutions: (-3, 6), (1, -7)Step-by-step explanation:
The first inequality describes a line with negative slope and y-intercept -4. The solution space is above that line.
The second inequality describes a line with positive slope and y-intercept +1. The solution space is below that line.
Together, the lines make a sort of X on the graph. The resulting solution space will be in the right-side quadrant of that X. Any sufficiently small y-value for a sufficiently large x-value will be a solution. Any point to the left of x=-4 will not be a solution. Values in each category are listed above and shown on the attached graph.
4) Find the perimeter of square whose side is 6.4cm
Answer:
Perimeter = 25.6 cm
Explanation:
Square Perimeter Formula: \(P = 4 * s (side length)\)
\(P = 4*6.4cm \\P = 25.6 cm\)
1) At the supermarket you can fill your own honey bear container. A customer buys 12 oz of honey for $5.40.
From the problem, the cost of 12 oz honey is $5.40
a. the cost of honey per ounce will be :
\(\frac{\$5.40}{12oz}=\$0.45\text{per oz}\)The answer is $0.45 per ounce.
b. the amount of honey per dollar will be :
\(\frac{12oz}{\$5.40}=2.22\)The answer is 2.22 oz per dollar
c. when h = ounces of honey and c = cost in dollar
The equation will be :
For the cost of honey per ounce :
\(c=0.45h\)For the amount of honey per dollar :
\(h=0.22c\)d. Graphing one equation, we will graph c = 0.45h
A line with points (0, 0) and (12, 5.40)
x-axis will be the amount of honey
y-axis will be the cost in dollar.
The ratio of the measures of three sides of a triangle is 1/4:1/3:1/6. its perimeter is 31.5 inches
Answer:
10.5 inches, 14 inches, 7 inches
Step-by-step explanation:
Let's say x is the multiplier of the ratio value and the actual length of the sides:
1/4 * x = side 1
1/3 * x = side 2
1/6 * x = side 3
Since the perimeter is the sum of all sides, the perimeter is equal to:
31.5 = 1/4 * x + 1/3 * x + 1/6 * x ==> 31.5 inches is the perimeter
(31.5 = x/4 + x/3 + x/6)*12 ==> multiply the equation by 12 since 12 is the
LCM (Least Common Multiple) of 4, 3, and 6
12 * 31.5 = 12 * x/4 + 12 * x/3 + 12 * x/6 ==> multiply each term by 12
378 = 12x/4 + 12x/3 + 12x/6 ==> simplify
378 = 3x + 4x + 2x
378 = 9x
x = 378/9 ==> divide both sides by 9
x = 42
Now find each side length [Refer to the first three equations] :
Side length 1: 1/4 * 42 = 42/4 = 10.5 inches
Side length 2: 1/3 * 42 = 42/3 = 14 inches
Side length 3: 1/6 * 42 = 42/6 = 7 inches
Answer: 10.5 inches, 14 inches, 7 inches
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Hi,please help !
Simplify : 10c³de² ÷ 2cde =
Step 1: Think about this as four separate division questions:
\(\dfrac{10c^3de^2}{2cde} =\dfrac{10}{2} \cdot \dfrac{c^3}{c} \cdot\dfrac{d}{d}\cdot \dfrac{e^2}{e}\)
Step 2: Simplify each of the four, one at a time:
\(\begin{aligned}\dfrac{10c^3de^2}{2cde} &=\dfrac{10}{2} \cdot \dfrac{c^3}{c} \cdot\dfrac{d}{d}\cdot \dfrac{e^2}{e}\\[0.5em]&=5 \cdot c^{3-1} \cdot1\cdot e^{2-1}\\[0.5em]&=5 c^{2} e\end{aligned}\)
In 1000 sq. meter of land a farmer cultivated 765 kg of rice with the wastage of 23.5%. I) Find the weight of the wastage. II) Find the weight and percentage of rice cultivated. 3) If the area has been increased 40 times in size, how much rice will be cultivated (excluding the wastage)
Answer:
i. 179.775 kg
IIa)the weight=585.225 kg
IIb) percentage=75.6%
3)=30240 kg
Step-by-step explanation:
From the question were given the total area of the land as 1000 sq. meter
Amount of cultivated rice= 765 kg
the percentage of wastage rice =23.5%.
But we can convert the amount of the wastage rice from percentage to kilogram which is
23.5/100=0.235
Then to kilogram 0.235× 765 kg= 179.775 kg
Then amount of wastage rice= 179.775 kg
I)Find the weight of the wastage. ?
The amount of wastage rice is the conversion of it's percentage to kilogram which I did above
Then amount of wastage rice= 179.775 kg
II) Find the weight and percentage of rice cultivated.
Since we know amount of wastage as 179.775 kg, then the amount of cultivated will b difference between the cultivated and wastage=765 - 179. 775 = 585.225 kg
Then it's percentage is the substraction of the percentage of wastage from 100%
= 75.6%
3)If the area has been increased 40 times in size, how much rice will be cultivated (excluding the wastage)
Increase in the land in 40 times= 40×1000= 40,000sm
Then the rice cultivated= 75.6% ×40000
=30240 kg
Evaluate the definite integral. 3 25) ja S (3x2 + x + 8) dx
The value of the definite integral ∫[3 to 25] (3x^2 + x + 8) dx is 16537.
To evaluate the definite integral ∫[a to b] (3x^2 + x + 8) dx, where a = 3 and b = 25, we can use the integral properties and techniques. First, we will find the antiderivative of the integrand, and then apply the limits of integration.
Let's integrate the function term by term:
∫(3x^2 + x + 8) dx = ∫3x^2 dx + ∫x dx + ∫8 dx
Integrating each term:
= (3/3) * ∫x^2 dx + (1/2) * ∫1 * x dx + 8 * ∫1 dx
= x^3 + (1/2) * x^2 + 8x + C
Now, we can evaluate the definite integral by substituting the limits of integration:
∫[3 to 25] (3x^2 + x + 8) dx = [(25)^3 + (1/2) * (25)^2 + 8 * 25] - [(3)^3 + (1/2) * (3)^2 + 8 * 3]
= [15625 + (1/2) * 625 + 200] - [27 + (1/2) * 9 + 24]
= [15625 + 312.5 + 200] - [27 + 4.5 + 24]
= 16225 + 312.5 - 55.5
= 16537
Therefore, the value of the definite integral ∫[3 to 25] (3x^2 + x + 8) dx is 16537.
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please help me answer this question asap
Answer:
It's quite easy
Step-by-step explanation:
people less than 30 years = frequency of people 0 to 15 + 15 to 30 = 8+15 =23
Therefore there are 23 people less than 30 years old.
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how do i solve \(2x^{5} y -3x^{2} y
Susan has two coupons for a bicycle. Coupon A: 20% off of a $81 bicycle Coupon B: $19 rebate on a $81 bicycle Choose the coupon that gives the lower price. Then fill in the blank with the correct value.
The coupon that gives the lower price, based on the percentage discounts is Coupon B.
How to find the better coupon?To find the coupon that gives the lower price, apply the coupons to the price of the bicycle to see which value would be less after the coupon is applied.
Coupon A value after discount is:
= 81 x ( 1 - discount)
= 81 x ( 1 - 20%)
= $64.80
Coupon B value after discount is:
= 81 - 19
= $62
The coupon that gives the lower price is Coupon B.
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The circumference of the base of a cylinder is 24π mm. A similar cylinder has a base with circumference of 60π mm. The lateral area of the larger cylinder is 210π mm2. What is the lateral area of the smaller cylinder? 17.1π mm2 33.6π mm2 60π mm2 84π mm2
Answer: Step 1
Find the scale factor
we know that
If the two cylinders are similar
then
The ratio between the circumference of the larger cylinder to the circumference of the smaller cylinder is equal to the scale factor
Step 2
Find the lateral area of the smaller cylinder
we know that
If the two cylinders are similar
then
The ratio between the lateral area of the larger cylinder to the lateral area of the smaller cylinder is equal to the scale factor squared
Let
x--------> the lateral area of the larger cylinder
y-------> the lateral area of the smaller cylinder
z--------> the scale factor
In this problem we have
substitute in the formula and solve for y
therefore
the answer is
33.6π mm2
The correct option is Option D: the lateral area of the smaller cylinder is 84π mm².
What is the lateral area of the cylinder?The lateral area of the cylinder is the area of the curved surface which can be calculated by the formula given below
lateral area of the cylinder= 2πrl
where r is the radius of the cylinder and l is the length of the cylinder.
Here given that the two cylinders are similar.
The larger cylinder has base of circumference = 60π mm
As we know the circumference of base of cylinder= 2πR
⇒60π= 2πr
⇒2πR= 60π
Given the lateral area of the larger cylinder is 210π mm²
From above formula, it is clear that the lateral area of the cylinder= 2πrl
⇒ 210π = 2πrl
⇒2πRl= 210π
⇒60πl= 210π (as from above it is derived that 2πr= 60π)
⇒l= 210π/ 60π= 7/2
⇒l= 3.5 mm
the smaller cylinder has base of circumference = 24π mm
⇒ 2πr= 24π mm
then the lateral area of the smaller cylinder is= 2πrl= 24π*3.5= 84π mm²
Therefore the correct option is Option D: the lateral area of the smaller cylinder is 84π mm².
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Let functions f and g such that f(n) is O(g(n)) and following statements:I. log f(n) is O(log g(n))II. 2f(n) is O(2g(n))III. f(n)2 is O(g(n)2)Which of the following statement(s) is/are false?A. I and IIB. I and IIIC. II and IIID. All I, II, III
Option D, All I, II, III, is false. The log of f(n) is O(log g(n)) is true.
What is logarithm ?
The logarithm is the inverse function to exponentiation. That means the logarithm of a number x to the base b is the exponent to which b must be raised, to produce x.
The statement(s) that is/are false is option D. All I, II, III.
I. log f(n) is O(log g(n)) - True
II. 2f(n) is O(2g(n)) - False
III. f(n)^2 is O(g(n)^2) - False
The big O notation describes the upper bound of the growth rate of a function, but it does not take into account the exact relationship between two functions. So, it is possible that the log of f(n) is O(log g(n)), but it does not necessarily mean that 2f(n) is O(2g(n)) or that f(n)^2 is O(g(n)^2).
Option D, All I, II, III, is false. The log of f(n) is O(log g(n)) is true.
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no need for explanation just answer
Answer:
19
Step-by-step explanation:
what does it mean to say that two variables are negatively correlated
A.)When one variable increases, the other decreases.
B.)When variable increases, the other also
C.)When one variable decreases, the other also decfreases
D.)Both variables changes at the same rate
To say that two variables are negatively correlatted means that when one variable increases, the other variable decreases.
Negative correlation refers to a relationship between two variables where they tend to move in opposite directions. When one variable increases, the other variable tends to decrease, and vice versa. This negative relationship indicates an inverse association between the two variables.
Option A, "When one variable increases, the other decreases," accurately describes negative correlation. As one variable increases, the other variable decreases, reflecting the negative relationship between them.
Negative correlation does not imply that both variables change at the same rate (Option D). In negative correlation, the relationship is characterized by the opposite direction of change, not necessarily the same magnitude or rate of change.
Option B, "When variable increases, the other also," suggests a positive correlation, where both variables move in the same direction. This is not the case in negative correlation.
Option C, "When one variable decreases, the other also decreases," is a misinterpretation of negative correlation. In negative correlation, when one variable decreases, the other variable tends to increase, not decrease.
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I need help plssssss
Answer:
14 cups of flour
Step-by-step explanation:
14 cups of sugar multiplied by 2 is 28 cups of sugar
7 cups of flour multiplied by 2 is 14 cups of flour
Travis bought 14 tickets to the school play for 54$. Children tickets cost $3 and adult tickets cost $5. How many adult tickets did he buy?
Answer:
Step-by-step explanation:
Let x be the number of adult tickets Travis bought, and y be the number of children tickets he bought.
We know that Travis bought a total of 14 tickets, so x + y = 14.
We also know that the total cost of the tickets was $54, so 5x + 3y = 54.
We can use the first equation to solve for y in terms of x: y = 14 - x.
Substituting this into the second equation, we get:
5x + 3(14 - x) = 54
Simplifying and solving for x, we get:
5x + 42 - 3x = 54
2x + 42 = 54
2x = 12
x = 6
Therefore, Travis bought 6 adult tickets and 14 - 6 = 8 children tickets.
to find maximum wage of number equality of boy adult and child.
I mean: 48 = 6.8
12 person from here
2 person remain
6 $ remain as well
6 = 2 child ticket
so the answer is 6
2. The delivery trucks are all different sizes. That means the workers have to change the number of boxes that go on a truck. Three small delivery trucks can hold 330 boxes. If the same number of boxes is in each truck, how many boxes can one small delivery truck hold?
Answer:
Each small truck can hold a total of 110 boxes.
Step-by-step explanation:
It says three small delivery trucks can hold 330. That meant all three together. So you just have to do 330 divided by 3 and you get 110. So that's the number of boxes ONE small truck can hold. Also, If u do it backward, 3 x 110 =330.
the cost of a meal at a restaurant was $\$15$ before tax and tip. if the $7\%$ tax and an $18\%$ tip are each based solely upon the cost of the meal, what is the total cost in dollars of the meal, tax and tip? express your answer as a decimal to the nearest hundredth.
Total cost in dollars of the meal, tax and tips is $18.75
What is tip?Tips are bonus or extra payment that a customer wants to pay to the counter of restaurant or to certain workers to express the gratitude toward their hospitality. How much money will be paid is determined by the customer himself.
What is the total cost in dollars?given, cost of meal = $15 before tax and tip
After that $7% tax and $18% tip are included upon the cost of meal
Now, cost for tax = $ (7/100 × 15) = $1.05
cost for tip = $ (18/100 × 15) =$2.7
Total cost for meal, tax and tips = cost for meal + cost for tax + cost for tip
Total cost = $18.75
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Which unit of measurement is part of the metric system?
O pound
Oliter
O quart
O foot