A rectangular block of copper metal has a mass of 1800 grams. The dimensions of the block
are 8 cm by 5 cm by 4 cm. From this data, what is the density?
Answers
P is density
M is mass
V volume
So you have the volume already now 8x5x4= 160 which is the volume
P= 1800/160 after you divide you get 11.25
The density is 11.25
Related Questions
A line passes through the points (2, -2) and (8, -20), and satisfies the equation "y + 2 = ?". What goes in the equation
where the question mark is?
Answers
Answer:
-3x + 6
Step-by-step explanation:
(2,-2) (9,-20)
Slope \(\frac{-20- - 2}{8-2}\) = \(\frac{-18}{6}\) = -3
y = mx + b
Use the slope -3 and the point (2,-2) to find the y intercept
m = -3
y = -2 From the point given
x = 2 From the point given
y = mx + b
-2 = -3(2) + b
-2 = -6 +b Add six to both sides
4 = b
y = -3x + 4 We want to have y = 2 so we will add 2 to both sides
y + 2 = -3x + 4 + 2
y + 2 = -3x + 6
Alex writes a simple Program to calculate the final cost of a purchase:cost <— 0.7tax <— 0.1 final <— cost + tax They're surprised to see that final Stores the value 0.7999999999999999 instead of 0.8.What is the best explanation for that result?A. The computer stored the result with floating-point representation instead of integer represantation.B. An integer overflow error occuredC The result was too large of a number to be stored in floating-point representation.D. The arithmetic operations on floating-point. numbers resulted ina round-off-error.
Answers
The best explanation for the rounding error in Alex's program is that the arithmetic operations on floating-point numbers resulted in a round-off error, as binary floating-point representation cannot represent the number 0.8 exactly. The correct option is D).
The best explanation for the result is that the arithmetic operations on floating-point numbers resulted in a round-off error. In most programming languages, floating-point numbers are represented using a finite number of bits, which can result in some rounding errors when performing arithmetic operations.
This can occur because some numbers cannot be represented exactly using the available bits. In this case, the number 0.8 cannot be represented exactly using binary floating-point representation, leading to a small rounding error.
While this error may seem insignificant, it can accumulate over multiple operations and lead to more significant errors in certain situations.
Therefore, it is important to be aware of the limitations of floating-point arithmetic when working with numerical data in programming. The correct option is D).
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Given that x = 2y + 8 and 3x + y = 12, which of the following equations is true? Select all that apply.
A. 3 (2y + 8) + y = 12
B. 3 (12 − y) = 2y + 8
C. 4x + y = 2y + 20
D. x = 2 (12 + 3x) + 8
E. 3x = 6y + 24
Answers
The equation that is true from the given options are 3(2y+8) + y = 12 and x = 2(12-3x) + 8
What are system of equations?A system of equations, usually referred to as an equation system, is a collection of finite equations for which common solutions are sought.
Given the simultaneous equations below
x = 2y + 8 and;
3x + y = 12
This equations can be solved using the substitution method. From equation 1;
x = 2y + 8
In order to write the equation as a function of one variable, we will substitute equation 1 into 2 to have:
3(2y+8) + y = 12
Expand
6y + 24 + y = 12
7y = 12 - 24
7y = -12
y = -12/7
Similarly from equation 2;
y = 12 - 3x
Substitute into 1;
x = 2y + 8
x = 2(12-3x) + 8
Hence the equation that is true from the given options are 3(2y+8) + y = 12 and x = 2(12-3x) + 8
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What is the value of the expression?
5 (3+4)
A 19
B) 35
C 12
D) 60
Answers
Answer:
B (35)
Step-by-step explanation:
5 * 3 = 15
5 * 4 = 20
20+15= 35
Answer:
B) 35
Step-by-step explanation:
Solve the equations inside the parenthesis first
so 3 + 4 = 7
now multiply 7 x 5 = 35
Secants ⎯⎯⎯⎯⎯⎯⎯⎯⎯ and ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯ intersect in the exterior of a circle. DJH measures 191° and EG measures 53°. Determine the measure of ∠ EFG.
Answers
Answer:
\( m\angle EFG =69\degree \)
Step-by-step explanation:
\( m\angle EFG =\frac{1}{2}(191- 53)\degree \)
\( m\angle EFG =\frac{1}{2}\times 138\degree \)
\( m\angle EFG =69\degree \)
What is y={\dfrac{4}{5}}x+2y=
5
4
x+2y, equals, start fraction, 4, divided by, 5, end fraction, x, plus, 2 written in standard form?
\
Answers
y = 4/5x + 2 written in standard form is expressed as: - 4/5x + y = 2.
What is the Equation of a Line in Standard Form?The equation of a line can be rewritten or expressed as Ax + By = C in standard form, where:
A, B, and C are integers.
So, if we are given the equation of a line that is expressed in maybe slope-intercept form as y = mx + b, we can rewrite the equation to express it in standard form as Ax + By = C.
Given the equation in slope-intercept form as, y = 4/5x + 2, rewrite in standard form as shown below:
y = 4/5x + 2
- 4/5x + y = 2
This means that the standard form of the equation, y = 4/5x + 2 is expressed as: - 4/5x + y = 2.
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Question:
What is y = 4/5x + 2 written in standard form?
Garrett's company believes minimizing air emissions is the right thing to do, and it will not contract with a supplier who thinks otherwise. this idea about what the company believes to be right is an example of a
Answers
The idea about what the company believes to be right, specifically regarding minimizing air emissions and its influence on supplier contracts, is an example of a value or ethical stance.
Values represent the guiding principles and beliefs that shape an individual's or organization's behavior and decision-making processes. In this case, the company's belief in minimizing air emissions aligns with its values and serves as a criterion for selecting suppliers. It reflects the company's commitment to environmental responsibility and sustainability.
Values play a significant role in shaping corporate culture, defining priorities, and establishing ethical standards within an organization. They serve as a compass for decision-making, guiding actions that align with the organization's core principles and objectives.
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If there are 20 cookies and 40 carrot each number are the same number of one whole cookies how many cost members might have been at the party,explain
Answers
2, 4, 5, 10 and 20 cast members were possible attendees at the celebration.
The acting teacher provided 20 biscuits and 40 carrot sticks as refreshments in light of this.
What are the factors?
A factor in mathematics is an integer that evenly divides another number by itself, leaving no residue.
2, 4, 5, 10, and 20 make up the factors of 20 and 40.
Additionally, the number of cast members must be greater than one and a divisor of 20 and 40.
Therefore, there could be 2, 4, 5, 10, or 20 cast members.
Therefore, 2, 4, 5, 10 and 20 cast members may have attended the celebration.
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30 points Solve for y 4y+11=17
Answers
Answer:
1.5
Step-by-step explanation:
4y + 11 = 17
-11 -11
4y = 6
/4 /4
1y = 1.5
What expression is equivalent to -16-9
A. 16+(-9)
B. 16+9
C. -16+(-9)
D.-16+8
Answers
Karl bought 3 1/2 gallons of milk that cost $2.70 per gallon.What was the total cost of the milk?
Answers
Answer:
The answer is 9.45
Step-by-step explanation:
2.7*3.5=9.45
Select the correct answer.
As part of a community-service project, a local club has decided to paint 864 walls across town. The club has 36 volunteers. If the work is divided evenly, how many walls must each volunteer paint?
A.
24
B.
29
C.
34
D.
39
Answers
The 24 walls must paint by each volunteer if the work is divided evenly and the club has 36 volunteers.
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have:
As part of a community-service project, a local club has decided to paint 864 walls across town. The club has 36 volunteers.
Total number of volunteers = 36
Number of walls = 864
The number of walls each volunteer paint can be expressed as a fraction:
= 864/36
= 24
Thus, the 24 walls must paint by each volunteer if the work is divided evenly and the club has 36 volunteers.
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Question:
The current (in amps) in a simple
electrical circuit varies inversely to
the resistance measured in ohms.
The current is 24 amps when the
resistance is 20 ohms. Find the
current (in amps) when the
resistance is 12 ohms.
Answers
The current in the circuit when the resistance is 12 ohms is 40 amps.
What is fraction?
A fraction is a mathematical term that represents a part of a whole or a ratio between two quantities.
We can use the inverse proportionality formula to solve this problem, which states that:
current (in amps) x resistance (in ohms) = constant
Let's call this constant "k". We can use the information given in the problem to find k:
24 amps x 20 ohms = k
k = 480
Now we can use this constant to find the current when the resistance is 12 ohms:
current x 12 ohms = 480
current = 480 / 12
current = 40 amps
Therefore, the current in the circuit when the resistance is 12 ohms is 40 amps.
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How can probability be applied to decision making?
Answers
Answer:
ANSWER============================You can calculate the probability that an event will happen by dividing the number of ways that the event can happen by the number of total possibilities. Probability can help you to make better decisions, such as deciding whether or not to play a game where the outcome may not be immediately obvious.============================#CarryOnLearningAnswer: Using Probability to Increase the Odds of success
60 8th grade students chose to watch a movie on the last day of school. this is 20% of the class. how many students are there in 8th grade?
Answers
Answer:
the answer is 300 8th grade students
Step-by-step explanation:
can you help me please
Answers
Answer:
the first one
Step-by-step explanation:
because you would use Pythagorean theorem to find a missing side
the equation would be a^2+b^2= C^2
and ya
Points B and D are points of tangency. Find the values of x.
D
C С
2x + 5
B
A
3x2 + 2x - 7
X=
Answers
Answer:
X=2
Step-by-step explanation:
3x²+2x-7=2x+5
-2x -2x
3x²-7= 5
+7 +7
3x² = 12
3 3
\(\sqrt{x^{2}\) = \(\sqrt{4}\)
X=2
Answer:
Step-by-step explanation:
Pa tulong po pleasee
Answers
Answer:
1. 7
2. 54÷2=27
only this I know please put brainlest
Answer:
1.x+5=12
2.2x=54
Javier says that when you add a positive and a negative number the sum is always negative. Is javier statement true or false? explain your reasoning
Answers
Step-by-step explanation:
False
If the positive number is greater than the negative, then it will stay positive.
say the question is 5+ -3.
The answer would be 2
Answer:
False
Step-by-step explanation:
It depends on what sign the larger number is. For example, -5+9= 4 because they are opposite signs and 9 is the larger number of the two, therefore the answer is a positive 4.
Abby sold half of her comic books and then bought seventeen more. She now has 32. With how many did she begin?
Answers
Answer:
15 because 32 - 17 = 15
Step-by-step explanation:
It was just a second,but it changed everything essay
Answers
i dont know what you are asking me
HELP NOW (+ brainlist)
Answers
Answer:
2/6
Step-by-step explanation:
What proportion of these candy bars have fewer than 200 calories? (round your answer to two decimal places.)
Answers
The proportion of candy bars with fewer than 200 calories cannot be determined without additional information.
To calculate the proportion of candy bars with fewer than 200 calories, we need to know the total number of candy bars and the number of candy bars that have fewer than 200 calories.
Without this information, we cannot determine the proportion. The number of candy bars with fewer than 200 calories could vary greatly depending on the specific dataset or context.
The proportion of candy bars with fewer than 200 calories cannot be determined without additional information regarding the total number of candy bars and the number of candy bars that fall into that category.
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someonneee help me !!!!
Answers
expand the following:
a) 8(×-2y)
Answers
Answer:
8x-16y
Step-by-step explanation:
8*x-8*2y
8x-16y
Answer.
8x - 16y
Explained in the picture atteached:
I WILL GIVE
Create an equivalent expression for this
Answers
Answer: C
Step-by-step explanation:
Answer: I think the answer is A.
Step-by-step explanation:
Find the point on the line 3x + y = 4 which is closest to the point (-3,1). Answer: (6/5,2/5) Note: Your answer should be a point in form (x-coordinate, y-coordinate)
Answers
To find the point on the line 3x + y = 4 that is closest to the point (-3, 1), we can use the concept of perpendicular distance.
First, let's express the equation of the given line in slope-intercept form (y = mx + b):
y = -3x + 4
Now, we can consider a perpendicular line passing through the point (-3, 1). The slope of the perpendicular line will be the negative reciprocal of the slope of the given line, which is 1/3.
Using the point-slope form of a line (y - y1 = m(x - x1)), we can write the equation of the perpendicular line:
y - 1 = (1/3)(x + 3)
y - 1 = (1/3)x + 1
y = (1/3)x + 2
To find the intersection point of the two lines, we can solve the system of equations:
y = -3x + 4
y = (1/3)x + 2
By equating the two equations, we get:
-3x + 4 = (1/3)x + 2
Simplifying the equation:
-3x - (1/3)x = 2 - 4
-10/3 x = -2
x = 6/5
Substituting the value of x back into either equation, we find:
y = -3(6/5) + 4
y = -18/5 + 20/5
y = 2/5
Therefore, the point on the line 3x + y = 4 closest to the point (-3, 1) is (6/5, 2/5).
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A firm offers routine physical examinations as part of a health service program for its employees. The exams showed that 16% of the employees needed corrective shoes, 23% needed major dental work, and 3% needed both corrective shoes and major dental work. What is the probability that an employee selected at random will need either corrective shoes or major dental work
Answers
Probability of people needing corrective shoes or dental work is 0.36.
What is probability?The proportion of favorable cases to all possible cases used to determine how likely an event is to occur.
What are mutually exclusive events?A statistical term used to describe events that cannot occur concurrently is "mutually exclusive".
Here, the two events getting corrective shoes and getting dental work are not mutually exclusive events.
P(corrective shoes or dental work) = P(corrective shoes) + P(dental work) - P(corrective shoes and dental work)
P(corrective shoes or dental work) = 0.16 + 0.23 - 0.03
P(corrective shoes or dental work) = 0.36
Hence, the probability of people needing corrective shoes or dental work is 0.36.
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what decimal fraction of 200g of 1kg
Answers
Answer:
1/5
Step-by-step explanation:
F=200/1000 = 2/10 = 1/5 Pretty simple just convert to the same unit if it doesn't make sense watch videos about the topic of unit conversion :D
Kainoa went to GameStop and spent $54 in total.
Video games are $15 and card games were $6. Write
and solve the equation to show how many card games
Kainoa bought if he bought 2 video games.
Answers
Answer:the answer of your question is 10
Step-by-step explanation: