By taking the quotient between the distance and the time, we will see that the speed is 16 miles per hour.
How to find the speed of the ship?Remember that the speed is defined as the quotient between the distance traveled and the time in which that distance is traveled.
Such that:
speed = (distance)/(time)
Here we know that the ship can travel 48 miles in 3 hours, so:
distance = 48 mi
time = 3 hours
Then the speed is:
S = 48mi/3h
S = 16 mi/h
So the speed of the ship is 16 miles per hour.
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!!! 50 points !!!
Rug to place in the middle of his bedroom. He draws a diagram to show where he will place is rug. Part A: Sam needs to find the perimeter of his bedroom. Use the picture to write three expressions that represent the perimeter, in feet, of Sam’s room.
Part B: now, Sam wants to find the area of his bedroom. He says that he can find the area using the expression 40x + 12 square feet. Is he correct? If he is incorrect, how many square feet is he off by?
Part C: Sam’s friend Carla has a square a bedroom with side length 4x + 6. Compare the perimeter of Carla’s room to the perimeter of Sam’s room.
**I need all answers and explanations, as I am required to show my work!**
A:Expression 3: 4(4x + 6) = 16x + 24 feet, B: No, he is incorrect
C: The perimeter of Carla’s room is 16x + 24, which is the same as Sam’s room.
What is an expression?An expression is a combination of numbers, symbols, and variables that represents a certain value otherwise set of values.
For example, 2x + 5 is an expression that represents any value that can be obtained by substituting any number for the variable x.
In this question
Part A:
The perimeter of Sam's bedroom can be expressed using the following equations:
1. P = 2(x+2) + 2(y+2)
2. P = 2x + 4 + 2y + 4
3. P = 2x + 2y + 8
Part B:
No, Sam is incorrect. The correct expression for the area of his bedroom is A = (x+2)(y+2). He is off by 8 square feet.
Part C:
The perimeter of Carla's room is 4x + 12, which is 4 more than the perimeter of Sam's room.
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Complete the statements describing the process of converting z = 2 + 3i to polar coordinates using technology.
Write the complex number as a point in the complex plane,
(2, 3pi)
(2, 3)
(3i, 2)
(-3, 2)
Substitute _ for a and _ for b.
Options for the first _:
2
2pi
3
3i
Options for the second _:
2
2i
3
3i
Using radians for θ, record the result ___ as your answer in polar coordinate form.
(3.606cos(.983), 3.606sin(.983))
(3.606, 0.983)
3.606
0.983
Answer:
The correct statements describing the process of converting z = 2 + 3i to polar coordinates using technology are:
Write the complex number as a point in the complex plane: (2, 3i)
Substitute a = 2 and b = 3 for the real and imaginary parts respectively.
Using radians for θ, record the result as r = 3.606 and θ = 0.983 as your answer in polar coordinate form: (3.606, 0.983).
To convert a complex number in the form of z = a + bi to polar coordinates using technology, we can use the following steps:
Write the complex number as a point in the complex plane, with the real part as the x-coordinate and the imaginary part as the y-coordinate.
Substitute a for the real part and b for the imaginary part.
Using the Pythagorean theorem, we can find the distance from the origin to the point, which is the magnitude or modulus of the complex number, represented by r.
Using the tangent function, we can find the angle of the point from the positive x-axis, which is the argument or phase of the complex number, represented by θ.
Record the result in polar coordinates as (r, θ), where r is the magnitude and θ is the argument, given in radians.
It's also worth noting that polar coordinates can also be represented in the form of (r, θ ) or (r, arg(z)) or (r, angle(z))
Answer:
z = 2 + 3i
Step-by-step explanation:
1. The population of the country Ghana was 24 658 823 in the year 2010. In the year 2020, Ghana Statistical Service gave an estimated number of people in the country Ghana a 31 072 940.
a. Find the difference in the two data provided.
b. Calculate the sum of the two data to the nearest thousand hundred.
a. the difference in the two data provided =31072940 - 24658823 = 6414117
b. the sum of the two data to the nearest thousand hundred = 31072940 - 24658823 = 55731763
nearest to Thousand hundred = 55730000
75+(4²- 6²) +12=
15³- 16 × 2+28=
Answer:
75+(4²- 6²) +12= 67
15³- 16 × 2+28=3371
The points on this graph represent a relationship between x- and y-values. Which statement about the relationship is true?
The statement about the relationship of the data in the table is indicated in the option;
It can not be proportional because the straight line through the points does not go through the originWhat is a proportional relationship?A proportional relationship is one in which one variable (the output variable) is a constant multiple of the input variable, such that a point on the graph of ordered pairs of variable is the point (0, 0), which is the origin.
The points on the graph are; (1, 3.5), (2, 4.5), (3, 5,5)
The slope of the graph is therefore; (4.5 - 3.5)/(2 - 1) = 1
The equation in point-slope form is therefore; y - 3.5 = x - 1
y = x - 1 + 3.5 = x + 2.5
y = x + 2.5
The equation is a linear relationship. The equation is in the form; y = m·x + c, with the slope m = 1 and a y-intercept, c = 2.5
The y-intercept is 2,5, therefore, the graph does not pass through the origin.
The relationship of the line passing through the points, is a linear relationship. The line passing through the points does not pass through the origin, therefore the relationship is not a proportional relationship
The correct option is therefore; It cannot be a proportional because the straight line through the points does not go through the origin.
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Can a negative number be an exponential function?.
Yes, it is possible for a negative number to be an exponential function.
The number of times a number is multiplied by itself is indicated by the positive exponent, as we are aware. In contrast, the negative exponent indicates how many times the base number must be divided. The negative exponent, in other words, indicates how many times the reciprocal of the base must be multiplied. 3-2 is a prime example of a negative exponent.Two negative exponents can be multiplied together in the same way as two numbers. Since we are aware that negative exponents can be reduced to fractions, simplifying negative exponents is simple. Converting the negative exponents to their fractional form is the first step in multiplying negative exponents, after which the procedure is the same as multiplying two fractional numbers.
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ZA and B are vertical angles. If m/A= (2x +20)° and m/B = (3x + 1)°,
then find the value of x.
Answer:
The value of x is -19.
Step-by-step explanation:
Given that ZA and B are vertical angles and m/A = (2x +20)°, and m/B = (3x + 1)°, we know that ZA and B are congruent, meaning they have the same measure. We can set the two given equations equal to each other: m/A = (2x + 20)° = m/B = (3x + 1)°. Then, by isolating x on one side of the equation, we subtract 20 from both sides of the equation, then subtract 2x from both sides of the equation, which gives us x = -19, thus the value of x is -19.
Answer:
x = 19
Step-by-step explanation:
since vertical angles are equal we can set the value of angles A and B equal and solve for 'x'
2x + 20 = 3x + 1
20 = x + 1
19 = x
how does understanding unit rates help us with unit pricing
How do you write greater than 4?.
To show that one value is greater than another, use the "greater than" symbol (>). It can be used to express a comparison between two values in mathematical operations, programming, and other forms of notation.
For instance, the "greater than" symbol can be used to compare integers in mathematical operations. For instance, you would write "x > y" to indicate that x is greater than y. This can alternatively be understood as "x exceeds y."
Other comparison symbols, such as "less than," "greater than," and "less than or equal to," can be used in addition to the "greater than" symbol. These symbols can be used to describe many forms of value comparisons in programming and mathematical processes.
The word "greater than" is represented by the symbol ">," therefore to write "greater than 4" you would write ">4".
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Calculate the average speed of a cyclist that travels 30km in 3 hours
Answer:
V = 10 km/h
Step-by-step explanation:
Formula for speed --> V = X/t being X equal to space and t the time wasted.
X = 30 km
t = 3 hours
then,
V = 30/3
V = 10 km/h
JK is a tangent to the circle KLM at K and JML is a straight line. The value of x is
A. 30° B. 45° C. 60° D. 75°
The value of angle x is 45°. Thus, option B is correct.
How to find the value of x?A corner is an angle if it forms a projecting part or a partially enclosed space. An angle is a figure made up of two lines that extend from the same point. a measurement of an angle or the amount of turning required to align or make parallel two lines or planes.
step1:
o is center
JK is a tangent
so <OKJ =90°
<OKM=90°-30°=60°
OM=OK=><OMK=60°
step2:
because LO=LO, LM=LK, ON=OK
So Triangle OLM ≅ Triangle OLK => <LOM=<LOK
so <LOM=150° => <LMO =15°
so 60° +15° =30°+x°=>x= 45
so the answer is B. 45°
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URGENT PLEASE HELP I NEED IT RN! THANKS
7. Critique Reasoning Julio states that he can use the SAS Triangle Congruence
Theorem to prove that two right triangles are congruent. He constructs two right
triangles to have congruent hypotenuses and one set of congruent legs. What does
Julio need to do in order to use the SAS Triangle Congruence Theorem? Explain your
reasoning
Julio needs to prove that two sides of the two triangles are congruent, in addition to the hypotenuse and one set of legs that are already congruent, to use the SAS Triangle Congruence Theorem.
Julio needs to prove that the two triangles have congruent sides in order to use the SAS Triangle Congruence Theorem. This means that he needs to show that one side of one triangle is congruent to a corresponding side of the other triangle and the same applies to the other two sides. This can be done by using methods such as measuring the sides, using algebraic equations, or using geometric constructions.
According to Julio statement, he has already constructed two right triangles to have congruent hypotenuses and one set of congruent legs, which means he has already proved that one side of one triangle is congruent to a corresponding side of the other triangle (hypotenuse) and one set of legs are congruent.
Therefore, Julio need to prove the remaining side of the triangle congruent to the corresponding side of the other triangle. Once he proves this, he can use the SAS Triangle Congruence Theorem to state that the two triangles are congruent.
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The probability of events A
and B is
P(A)=1/2
P(B)=1/3
P(A∩B)=1/4.
What is the value of P(A or B)?
Enter your answer as a fraction, like this: 4/25
Answer: 2/3
Step-by-step explanation:
To find the probability of A or B, we can use the formula: P(A or B) = P(A) + P(B) - P(A ∩ B)
Plugging in the given values:
P(A or B) = 1/2 + 1/3 - 1/4
To solve this, we must find a common denominator in order to add the fractions:
P(A or B) = 3/6 + 2/6 - 1/6
Simplifying:
P(A or B) = 4/6 = 2/3
So the value of P(A or B) is 2/3
What is a 2 term polynomial?.
Two term polynomial called as a binomial .
An algebraic equation that has more than two terms, particularly the accumulation of numerous phrases that each include a different power of the same variables known as polynomial.
But when we reduce more than two terms into only two terms we get binomial.
A formula in algebra that expresses the difference or sum of two terms is known as binomial.
For example:
[tex]x^{4} + x y^{2} +x^{2} + x[/tex] is polynomial because it has more than two separate terms which are [tex]x^{4}[/tex] , [tex]x y^{2}[/tex] , [tex]x^{2}[/tex] and [tex]x[/tex]
[tex]x^{2} + y^{2}[/tex] is binomial because it has only two separate terms which are [tex]x^{2}[/tex] and [tex]y^{2}[/tex].
[tex]4x+6y[/tex] is also binomial because it has also only two separate terms which are [tex]4x[/tex] and [tex]6y[/tex]
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Example 1: Fill in the missing values in the table of solutions for the linear equation, y=-x+4, plot the points, and then draw the line through the points
Answer:
so plot a 4 and the go up one over right one that way you have the linear equation graphed
SOMEONE PLS HELP
1 1/2 - 3 2/3
Answer:
= -13/6 OR -2.1667
Step-by-step explanation:
1 1/2 - 3 2/3
=3/2 - 11/3
LCM of 2 and 3 is 6
3/2 - 11/3
= 9 - 22
6
= - 13/6 OR -2.5
Answer: is it
-2 1/6
Step-by-step explanation:
Rewriting our equation with parts separated
=1+12−3−23
Solving the whole number parts
1−3=−2
Solving the fraction parts
12−23=?
Find the LCD of 1/2 and 2/3 and rewrite to solve with the equivalent fractions.
LCD = 6
36−46=−16
Combining the whole and fraction parts
−2−16=−216
Simple bro
Point MM is located at (-4,4)(−4,4) on the coordinate plane. Point MM is reflected over the yy-axis to create point M'M
′
. Point M'M
′
is then reflected over the xx-axis to create point M''M
′′
. What ordered pair describes the location of M''?M
′′
?
The ordered pair which describes the location of M''M" is (4, -4).
What is a reflection?In Geometry, a reflection over the y-axis is given by this transformation rule (x, y) → (-x, y). This ultimately implies that, a reflection over the y-axis would maintain the same y-coordinate while the sign of the x-coordinate changes from positive to negative or negative to positive.
By applying a reflection over the y-axis to the coordinates of the image coordinates include the following:
(x, y) → (-x, y)
Coordinate M = (-4, 4) → Coordinate M' = (-(-4), 4) = (4, 4).
Next, we would apply a reflection over the x-axis to the above coordinates as follows:
(x, y) → (x, -y)
Coordinate M' = (4, 4) → Coordinate M" = (4, -(4)) = (4, -4).
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PLEASE HURRY
What is the highest fraction that is reduced to 1/2
I WILL MARK U BRAINLIST
Answer:
The fractions which are equivalent to 1/2 are 2/4, 3/6, 4/8, 6/12 etc.
But there are more fractions that are equivalent to 1/2 such as 7/14, 8/16, 9/18, 10/20, 11/22, 12/24, 13/26, 14/28, 15/30, 16/32, 17/34, 18/36, 19/38, 20/40, 21/42, 22/44, 23/46, 24/48, 25/50, 26/52, 27/54, 28/56, 29/58, 30/60 and so on.
I might not get it but I tried :)
What is the solution of 7x 9 16?.
The solution to the equation 7x - 9 = 16 is x = 25/7. This can be achieved by using the addition property of equality and simplifying the equation.
The equation 7x - 9 = 16 can be solved by using The equation's solution can be changed by adding the same amount to either side of the equation, according to the addition property.
To both sides of the equation, add 9.
7x - 9 + 9 = 16 + 9
Simplify the equation.
7x = 25
Divide both sides of the equation by 7.
7x/7 = 25/7
Simplify the equation.
x = 25/7
Therefore, the solution to the equation 7x - 9 = 16 is x = 25/7.
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The ratio of boys to girls in the 9th grade is 7 to 9. There are 218 girls. Set up a proportion to model this information.
Answer:
7/9=b/218
Step-by-step explanation:
the cost in the dollar of operating machine per day is given the formula by C = 3T2 -96t + 1,014 , where is T is the time of the machine operating in hours
What is the maintenance cost of running the machine?
Answer:
T is the cost
Step-by-step explanation:
by looking at the question you can see the answer.
Two torage hed are to have the ame area. One i quare and one i rectangular. The rectangular hed i 3 meter wide and 12 meter long
By using the area of the square formula, it can be concluded that the side of the square shed is 6 meters.
The area of a square or a rectangle can be defined as the number of square units needed to fill it.
Area of a Square = side × side = side²
Area of a rectangle = width x length
Area of the square = area of the rectangle
Rectangle width = 3 meter
Rectangle length = 12 meter
To find the side of the square shed, we can do the following:
Area of the square = Area of the rectangle
side² = width x length
= 3 x 12
= 36
side = √36
= 6
Thus the side of the square shed is 6 meters.
Two storage sheds are to have the same area. One is square and one is rectangular. The rectangular shed is 3 meters wide and 12 meters long. How large is one side of the square shed in meters?
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help with this question
Answer:
Answers in the attached photo.
Step-by-step explanation:
SolutionSteps are in the attached photo, do note this question is testing on the knowledge of Pythagoras' Theorem.
Branly. Com math mr klammer ha a garden. One half of her garden i planted in vegetable and the other half i planted in flower he planted cucumber in 1/3 of the vegetable part of the harden how much of the whole garden i planted in cucumber. Brainly
1/6 of the whole garden is planted in cucumber.
What is cucumber ?
Cucumber is a type of vegetable that belongs to the cucurbit family, which also includes melons, squash and gourds. They are typically long, cylindrical in shape, and have a green skin that is typically eaten raw.
The proportion of the garden planted in cucumber is 1/3 of the vegetable part of the garden. To find out what proportion of the entire garden is planted in cucumber, we can use this proportion and multiply it by the proportion of the garden that is planted in vegetables.
Half of the garden is planted in vegetables, so the proportion of the garden planted in vegetables is 1/2.
1/3 of the vegetable part of the garden is planted in cucumber, so the proportion of the garden planted in cucumber is ,
(1/2) x (1/3) = 1/6
So, 1/6 of the whole garden is planted in cucumber.
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Half of the garden is planted in vegetables, so the proportion of the garden planted in vegetables is 1/2.
1/3 of the vegetable part of the garden is planted in cucumber, so the proportion of the garden planted in cucumber is ,
(1/2) x (1/3) = 1/6
1/6 of the whole garden is planted in cucumber
The graphs of f (x) and g (x) are shown below.
Answer:
B) (-∞, 2)
Step-by-step explanation:
Given functions:
[tex]f(x)=x-3[/tex]
[tex]g(x)=-0.5x[/tex]
To find the interval for which (f - g)(x) is negative, set (f - g)(x) less than zero and solve for x:
[tex]\begin{aligned}(f-g)(x)& < 0\\f(x)-g(x)& < 0\\(x-3)-(-0.5x)& < 0\\x-3+0.5x& < 0\\1.5x-3& < 0\\1.5x& < 3\\x& < 2\end{aligned}[/tex]
Therefore, the interval for which the composite function (f - g)(x) is negative is:
(-∞, 2)QUICK!! NEED RN!!! HELP ASAP!!!
From 1995 to 2000, the glaciers thinned by 6 ft per year. What was the change in glacier thickness during this period?
Answer this functions question
Answer:
ff(x)=9x-48
Step-by-step explanation:
f(x)=3x-12
ff(x)=f(3x-12)
=3(3x-12)-12
= 9x-36-12
= 9x-48
NEED TO FINISH BY 5!!! WILL MARK BRAINLIEST
Answer:
10 1/8
Step-by-step explanation:
25 3
8
+
-15 1
4
= (25 + -15) + (
3
8
+
-1
4
)
= 10 +
3
8
+
-1 × 2
4 × 2
= 10 +
3
8
+
-2
8
= 10 +
3 + -2
8
= 10 +
1
8
=
10 1
8
To solve the system of linear equations 3 x minus 2 y = 4 and 9 x minus 6 y = 12 by using the linear combination method, Henry decided that he should first multiply the first equation by –3 and then add the two equations together to eliminate the x-terms. When he did so, he also eliminated the y-terms and got the equation 0 = 0, so he thought that the system of equations must have an infinite number of solutions. To check his answer, he graphed the equations 3 x minus 2 y = 4 and 9 x minus 6 y = 12 with his graphing calculator, but he could only see one line. Why is this?
Henry could only see one line since both lines had the same slope, which means that the graphs of both equations will be identical and hence overlap.
Identify the linear equation?Linear equations in a system 3x + 2y = 4, and 9x + 6y = 12
We must demonstrate why Henry could only make out one line when he plotted the equations 3x-2y=4 and 9x-6y=12 on a graph.
Take the provided linear equation system into consideration.
3x - 2y = 4 ................(1)
9x - 6y = 12 ..................(2)
Due to the fact that equation (2) is a multiple of equation (1), 3 (3x - 2y = 4) = 9x - 6y = 12
The slopes of the provided equations are also same.
Difference with regard to x for equation (1) yields,
additional to equation (2),
With regard to x, we can differentiate to get,
The graphs of both equations will overlap since both lines have the same slope and hence have the same appearance on the graph.
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Estimation Rita goes to the mall. If b is the number of items she bought, the expression 13.06b+ 29 gives the amount she
spent in dollars at one store. Then she spent 22 dollars at another store. Find the expression which represents the amount
Rita spent at the mall. Then estimate how much Rita spent if she bought 2 items.
What expression represents the amount in dollars that Rita spent at the mall? Help please! This is due tomorrow!
The total amount Rita spend on the mall for 2 items is $77.12.
How to solve the expression to find total amount?When we combine numbers and variables in a valid way, using operations like addition, subtraction, multiplication, division, exponentiation, and other yet unlearned operations and functions, the resulting combination of mathematical symbols is known as a mathematical expression.Given that,
The expression of amount spend on the first store = 13.06b + 29
The amount spend on the second store = 22
Total amount Rita spends= 13.06b + 29 + 22
= 13.06b + 51
Then to estimate the amount Rita spent if she had bought 2 items.
Now, we have the value of b = 2.
So by substituting,
= 13.06 x 2 + 51
= 77.12
Therefore the total amount Rita spend on the mall is $77.12.
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