Answer:
The bag contains $2.39
Explanation 40% of 50 coins is 20 dimes which equals 2 dollars
8 percent is 4 pennies
2.00+ .04 is 2.04
Plus 7 nickels because there are 3 more nickels than pennies 7*5= 35
2.04+.35= 2.39
A water tank holds 657 gallons but is leaking at a rate of 4 gallons per week. A second water tank holds 876 gallons but is leaking at a rate of 7 gallons per week. After how many weeks will the amount of water in the two tanks be the same?
Someone help it’s due in some time
Answer:
A
Step-by-step explanation:
Answer:
3/2
Step-by-step explanation:
Divide second triangle measurements by first to see what was used to multiply
6/4 = 3/2
7.5/5 = 3/2
12/8 = 3/2
1Last year, a city received 16.4 inches of snow. This year, the same city received 7.91 inches of snow
What was the difference in the amounts of snowfall?
08.49 inches
8.51 inches
9.87 inches
9.51 inches
Answer: 8.49 inches
Step-by-step explanation:
16.4-7.91=8.49 inches
B= \(-9\frac{x}{y} 3\sqrt{x} + 5\)
Answer: \(-\frac{27x\sqrt{x}}{y}+5\)
Step-by-step explanation:
\(-9\cdot \frac{x}{y}\cdot \:3\sqrt{x}+5\)
\(=-\frac{27x\sqrt{x}}{y}+5\)
The fastest speed recorded forerunner 27 mph. This is 20% of the fastest speed for a water skier find the record for a water skier.
Answer: 135
Step-by-step explanation: We know that the forerunner is 1/5 the speed of the water skier as 20/100 is 1/5. Now if we "reverse" this we can multiply 27 by 5 to find the speed of the water skier, this is 135 which is the speed of the water skier. Hope this helped :)
PLZ HELP DUE IN 30 minutes
For the cube first we find the surface on one side which is 3x3=9ft^2
we have 6 sides 9x6=54ft^2
For the pyramid first we find the surface of the base which is 15x15=225in^2
next we find the surface of the sides which is 7*15/2=52.5in^2 52.5*4=210in^2
210+225=435in^2
Answer:
435 inches for pyramid 54ft for cube
Step-by-step explanation:
52.5 x 4=210
15 x 15 = 225
cube 3 x 3 ft equals 9 feet repeat for all 6 faces u get 54ft
can someone please help me
Answer:
x squared, i dont know how to do the lil 2 on a computer lolz
julie the jeweler has two gold necklaces worth $105, seven silver necklaces valued at $100, twenty-seven plated necklaces valued at $55, and twenty-two beaded necklaces worth $25. what is the average value of a necklace at julie's shop? express your answer rounded to the nearest cent.
The average value of a necklace at Julie's shop is $4.90. For further explanation;-
Julie the jeweler has two gold necklaces worth $105, seven silver necklaces valued at $100, twenty-seven plated necklaces valued at $55, and twenty-two beaded necklaces worth $25. The average value of a necklace at Julie's shop can be calculated by finding the sum of the values of all the necklaces and dividing it by the total number of necklaces.
The total value of all the necklaces is $105 + $100 + $55 + $25 = $285. The total number of necklaces is 2 + 7 + 27 + 22 = 58.
Therefore, the average value of a necklace is $285 / 58 = $4.90. This answer should be rounded to the nearest cent, giving an average value of $4.90 per necklace at Julie's shop.
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2x - 4y = -2
2x + 3y = 12
Answer: x=3 and y=2
Your welcome
Please Guys
-4n(5n+6)-5(3+3n)
Answer:
I tried this but i got it wrong it is not b on the test thing
Step-by-step explanation:
oop
2x^3y + 18xy - 10x^2y - 90y
Part A: rewrite the expression so that the GCF is factored completely
Part B: rewrite the expression completely factored. Show the steps of your work
___________________________
Part A: the area of a square is (9x^2 + 24x + 16) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work.
Part B: the area of a rectangle is (16x^2 - 25y^2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work.
___________________________
f(x) = 2x^2 - 5x + 3
Part A: what are the x-intercepts of the graph of f(x)? Show your work
Part B: is the vertex of the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answer and show your work.
Part C: what are the steps you would use to graph f(x)? Justify that you can use the answer in part A and part B to draw the graph.
The expression where the greatest common factor (GCF) is factored completely is \(2x^3y + 18xy - 10x^2y - 90y = 2y(x^3 + 9x - 5x^2 - 45)\)
The expression completely factored in is
\(2y(x^3 + 9x - 5x^2 - 45) = 2y[x(x^2 - 5) + 9(x^2 - 5)]\\= 2y(x - 5)(x^2 + 9)\)
Please refer below for the remaining answers.
We have,
Part A:
To rewrite the expression 2x³y + 18xy - 10x²y - 90y so that the greatest common factor (GCF) is factored completely, we can factor out the common terms.
GCF: 2y
\(2x^3y + 18xy - 10x^2y - 90y = 2y(x^3 + 9x - 5x^2 - 45)\)
Part B:
To completely factor the expression, we can further factor the quadratic term.
\(2y(x^3 + 9x - 5x^2 - 45) = 2y[x(x^2 - 5) + 9(x^2 - 5)]\\= 2y(x - 5)(x^2 + 9)\)
Now,
Part A:
To determine the length of each side of the square given the area expression (9x² + 24x + 16), we need to factor it completely.
The area expression (9x² + 24x + 16) can be factored as (3x + 4)(3x + 4) or (3x + 4)².
Therefore, the length of each side of the square is 3x + 4.
Part B:
To determine the dimensions of the rectangle given the area expression (16x² - 25y²), we need to factor it completely.
The area expression (16x² - 25y²) is a difference of squares and can be factored as (4x - 5y)(4x + 5y).
Therefore, the dimensions of the rectangle are (4x - 5y) and (4x + 5y).
Now,
f(x) = 2x² - 5x + 3
Part A:
To find the x-intercepts of the graph of f(x), we set f(x) equal to zero and solve for x.
2x² - 5x + 3 = 0
The quadratic equation can be factored as (2x - 1)(x - 3) = 0.
Setting each factor equal to zero:
2x - 1 = 0 --> x = 1/2
x - 3 = 0 --> x = 3
Therefore, the x-intercepts of the graph of f(x) are x = 1/2 and x = 3.
Part B:
To determine if the vertex of the graph of f(x) is maximum or minimum, we can examine the coefficient of the x^2 term.
The coefficient of the x² term in f(x) is positive (2x²), indicating that the parabola opens upward and the vertex is a minimum.
To find the coordinates of the vertex, we can use the formula x = -b / (2a), where a and b are the coefficients of the quadratic equation.
For f(x),
a = 2 and b = -5.
x = -(-5) / (2 x 2) = 5/4
To find the corresponding y-coordinate, we substitute this x-value back into the equation f(x):
f(5/4) = 25/8 - 25/4 + 3 = 25/8 - 50/8 + 24/8 = -1/8
Therefore, the vertex of the graph of f(x) is at the coordinates (5/4, -1/8), and it is a minimum point.
Part C:
To graph f(x), we can start by plotting the x-intercepts, which we found to be x = 1/2 and x = 3.
These points represent where the graph intersects the x-axis.
Next,
We can plot the vertex at (5/4, -1/8), which represents the minimum point of the graph.
Since the coefficient of the x² term is positive, the parabola opens upward.
We can use the vertex and the symmetry of the parabola to draw the rest of the graph.
The parabola will be symmetric with respect to the line x = 5/4.
We can also plot additional points by substituting other x-values into the equation f(x) = 2x² - 5x + 3.
By connecting the plotted points, we can draw the graph of f(x).
The steps to graph f(x) involve plotting the x-intercepts, the vertex, and additional points, and then connecting them to form the parabolic curve.
The answer in part A (x-intercepts) and part B (vertex) are crucial in determining these key points on the graph.
Thus,
The expression where the greatest common factor (GCF) is factored completely is \(2x^3y + 18xy - 10x^2y - 90y = 2y(x^3 + 9x - 5x^2 - 45)\)
The expression completely factored in is
\(2y(x^3 + 9x - 5x^2 - 45) = 2y[x(x^2 - 5) + 9(x^2 - 5)]\\= 2y(x - 5)(x^2 + 9)\)
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define Multiplication Property Of equality
Answer:
The multiplication property of equality states that when we multiply both sides of an equation by the same number, the two sides remain equal. Example 1 : Lisa and Linda have got the same amount of money.
Step-by-step explanation:
The ordered pairs shown below represent a relation. (3, 2) (5, 1) (6, 0) (4, 4) (5,2) Which number is not in the domain of the relation?
a2
b3
c4
d5
Answer:
d) 5
Step-by-step explanation:
we can observe that the x-value 5 appears twice in the relation. However, in a function or a relation, each x-value should only have one corresponding y-value. Therefore, the repetition of (5, 1) and (5, 2) indicates an inconsistency or ambiguity in the relation. As a result, 5 is not a valid x-value in the domain.
Alex simplified an equation as far as he could and determined that his equation has an infinite number of solutions. Which simplified equation leads Alex to this conclusion?
WHICH ONE IS CORRECT
A
B
C
D
The simplified equation leads Alex to this conclusion is x=5 or x= 0.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
We have given few Resultant value.
So, x = 5 shows that the resultant value of x is 5.
and, x = 0 shows that the resultant value of x is 0.
and, 5 = 5 shows only equality and for equation there must be variable.
and, 5 = - 5 shows only inequality and for equation there must be variable.
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Evaluate the algebraic expression 4x+2y–3z when x=–5, y=10, and z=6.
The evaluation of the expression is -18.
What is an expression?In mathematics, expression is the combining of variables with the application of operations and prescribed rules. It could take the shape of an equation, some numbers, etc.
Given, the algebraic expression 4x+2y–3z.
Given,
algebraic expression in mathematics is an expression which is made up of variables x, y and z and constants, along with algebraic operations (addition, subtraction, etc.).
Coefficients of x, y and z are 4, 2 and -3 respectively.
To find the value of expression 4x+2y–3z at x=–5, y=10, and z=6.
Substitute all the values in the expression,
4x+2y–3z
= 4(-5)+2(10)–3(6)
= -20 + 20 -18
= -18
That means, when x=–5, y=10, and z=6 the expression 4x+2y–3z yields -18.
Therefore, the value of the expression is 4x+2y–3z = -18.
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Translate the sentence into an inequality. A number x increased by 6 is less than or equal to -30.
x + 6 ≤ -30
Explanation:
let the number = x
x increased by 6 = x + 6
less than or equal means ≤
number x increased by 6 is less than or equal to -30:
x + 6 ≤ -30
A downtown business tower has 25 floors. Mr. Adams got on the elevator on floor 12. He rode the
elevator down 3 floors to attend a meeting. After the meeting, he rode the elevator up 9 floors to
his office. What floor is his office on?
F 20th floor
G 18th floor
H 24th floor
3 Not Here
a group of $10$ caltech students go to lake street for lunch. each student eats at either chipotle or panda express. in how many different ways can the students go to lunch?
Therefore, there are $2^{10} = 1024$ different ways that the group of 10 Caltech students can go to lunch at Lake Street, either choosing Chipotle or Panda Express.
To solve this problem, we can use the fundamental principle of counting, also known as the multiplication principle.
For the first student, there are two choices - either Chipotle or Panda Express. Similarly, for the second student, there are two choices, and so on. Therefore, the total number of ways that the group of 10 students can go to lunch is simply the product of the number of choices for each student:
$2 \times 2 \times 2 \times \dots \times 2$ (10 times)
This can be simplified using exponential notation as $2^{10}$.
It is worth noting that if the group were to split up and some students went to Chipotle while others went to Panda Express, then the number of ways would be different and would require a different approach to solve. But since the problem specifies that each student goes to either Chipotle or Panda Express, we can use the multiplication principle to find the answer.
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What is 564-53.2
Explain how you worked it out
Then what is 700.3-89.3
Explain how you worked it out
Quadrilateral PQRS is located at P (0, 1), Q (3, 2), R (4, 0), and S (1, −1). Russell and Jamie have both classified PQRS differently. Examine their proofs. Who is correct?
Russell Jamie
PQRS is a parallelogram because opposite sides are both congruent and parallel.
Segment PQ
P (0, 1) and Q (3, 2)
d equals the square root of the quantity 3 minus 0 all squared plus 2 minus 1 all squared equals the square root of the quantity 9 plus 1 equals the square root of 10
m equals 2 minus 1 over 3 minus 0 equals one third
Segment SR
S (1, −1) and R (4, 0)
d equals the square root of the quantity 4 minus 1 all squared plus 0 plus 1 all squared equals the square root of the quantity 9 plus 1 equals the square root of 10
m equals 0 plus 1 over 4 minus 1 equals one third
Segment PS
P (0, 1) and S (1, −1)
d equals the square root of the quantity 1 minus 0 all squared plus negative 1 minus 1 all squared equals the square root of the quantity 1 plus 4 equals the square root of 5
m equals negative 1 minus 1 over 1 minus 0 equals negative 2 over 1
Segment QR
Q (3, 2) and R (4, 0)
d equals the square root of the quantity 4 minus 3 all squared plus 0 minus 2 all squared equals the square root of the quantity 1 plus 4 equals the square root of 5
m equals 0 minus 2 over 4 minus 3 equals negative 2 over 1
Segments PQ and SR are both congruent and parallel, and segments PS and QR are both congruent and parallel. PQRS is a rectangle because opposite sides are both congruent and parallel and adjacent sides are perpendicular.
Segment PQ
P (0, 1) and Q (3, 2)
d equals the square root of the quantity 3 minus 0 all squared plus 2 minus 1 all squared equals the square root of the quantity 9 plus 1 equals the square root of 10
m equals 2 minus 1 over 3 minus 0 equals one third
Segment SR
S (1, −1) and R (4, 0)
d equals the square root of the quantity 4 minus 1 all squared plus 0 plus 1 all squared equals the square root of the quantity 9 plus 1 equals the square root of 10
m equals 0 plus 1 over 4 minus 1 equals one third
Segment PS
P (0, 1) and S (1, −1)
d equals the square root of the quantity 1 minus 0 all squared plus negative 1 minus 1 all squared equals the square root of the quantity 1 plus 4 equals the square root of 5
m equals negative 1 minus 1 over 1 minus 0 equals negative 2 over 1
Segment QR
Q (3, 2) and R (4, 0)
d equals the square root of the quantity 4 minus 3 all squared plus 0 minus 2 all squared equals the square root of the quantity 1 plus 4 equals the square root of 5
m equals 0 minus 2 over 4 minus 3 equals negative 2 over 1
Segments PQ and SR are both congruent and parallel, and segments PS and QR are both congruent and parallel. Segments PS and SR are perpendicular. Segments PQ and QR are perpendicular.
Russell
Jamie
Both
Neither
Hence, neither of them answered the question correctly.
What is a quadrilateral?A quadrilateral is a 2D shape with four sides. A list of five types of quadrilaterals: square, rectangle, parallelogram, trapezium, and rhombus.
How to solve?According to Russel, the given parallelogram is a rectangle which is not true as the adjacent sides of the quadrilateral are not perpendicular.
Similarly, Jamie says that the quadrilateral is a rectangle which is not true.
Hence, neither of them solved the question correctly.
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Jamie is correctly to describe for the proofs.
We have to given that,
Quadrilateral PQRS is located at P (0, 1), Q (3, 2), R (4, 0), and S (1, −1).
Here, Russell and Jamie have both classified PQRS differently.
Now, We know that,
The distance between two points (x₁ , y₁) and (x₂, y₂) is,
⇒ d = √ (x₂ - x₁)² + (y₂ - y₁)²
Hence, We get;
PQ = √(3 - 0)² + (2 - 1)²
PQ = √9 + 1
PQ = √10
QR = √(4 - 3)² + (0 - 2)²
QR = √1 + 4
QR = √5
RS = √(1 - 4)² + (- 1 - 0)²
RS = √9 + 1
RS = √10
SQ = √(1 - 0)² + (- 1 - 1)²
SQ = √1 + 4
SQ = √5
Hence, Segments PQ and SR are both congruent and parallel, and segments PS and QR are both congruent and parallel.
So, PQRS is a rectangle because opposite sides are both congruent and parallel and adjacent sides are perpendicular.
Thus, Jamie is correctly to describe for the proofs.
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What is the common difference of the sequence below?
-7, -11, -15, -19, ...
a) d = 4
Go to station 3
Go to station 7
b) d = 5
|
c) d= -4
Go to station 5
d) d = -5
Go to station 9
Answer:83999955 because of the gravity
Step-by-step explanation:
In the figure shown below all angles are right angles are right angles and the side lengths given are in yards what is the area in square yards of the figure? Please explain to me im confuse I got 134 and it's wrong
Answer:
98
Step-by-step explanation:
4 * 2 = 8
9 * 10 = 90
90 + 8 = 98
Product, Quotient, Chain rules and higher Question 4, 1.6.7 Part 1 of 3 a) Use the Product Rule to find the denvative of the given function. by Find the derivative by multiplying the expressions first y (5√x +4) x² a) Use the Product Rule to find the derivative of the function. Select the correct answer below and 5 in the answer box(es) to complete your choice OA. The derivative is (5√-4) (+ OB. The derivative is (5-√x+4) x² OC. The derivative is (5√/x-4) ( OD. The derivative is HW Score: 83.52%, 149.5 of 179 points Points: 0 of 10
To find the derivative of the function using the Product Rule, we have:
f(x) = y(5√x + 4) × x²
Using the Product Rule, the derivative is given by:
f'(x) = y' × (5√x + 4) × x² + y × [(5/2√x) × x²] + y × (5√x + 4) * 2x
Now, let's simplify the expression. First, we need to find the derivative of y with respect to x (y'):
As the problem does not provide any additional information about the function y, we cannot determine the value of y'. Therefore, we cannot fully evaluate the derivative using the Product Rule without more information.
Please provide any additional information or specify the function y to proceed with the calculation of the derivative.
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A building with a height of 6 m casts a shadow that is 8 m long while a taller building casts a 24 m long shadow. What is the height of the taller building?
Answer:
I am pretty sure it is 22m
Step-by-step explanation:
minus 2
Find the area of the trapezoid.
12
8
6
Density of rectangular blocks analysis Rectangular Block 1 Rectangular Block 2 Rectangular Block 3 Width (cm) Length (cm) 5.35 6.50 3.90 4.35 1.82 5.50 Height (cm) 1.80 1.70 1.82 Table view Mass (9) V
To calculate the density of the rectangular blocks, we would need the mass of each block in addition to the dimensions provided in the table view.
The given table provides the dimensions (width, length, and height) of three rectangular blocks, but it does not include the mass of each block. To calculate the density of a rectangular block, we need to know its mass and volume. The formula for density is:
Density = Mass / Volume
Without the mass values, it is not possible to calculate the density for each block. The mass of each block needs to be provided in order to perform the calculations.
The given information in the table view does not include the mass of the rectangular blocks. Therefore, we cannot calculate the density of the blocks based on the provided data. To determine the density, the mass of each block needs to be known.
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what is the value of x in the equation 4x + 1.3 = -7.9
Answer:
x = - 2.3Step-by-step explanation:
4x + 1.3 = -7.94x = -7.9 - 1.34x = -9.2x = -9.2/4x = - 2.3Answer:
\(4x + 1.3 = - 7.9 \\ 4x = - 1.3 - 7.9 \\ 4x = - 9.2 \\ x = \frac{-9.2}{4} \\ \boxed{x =- 2.3}\)
-2.3 is the right answer.What is the missing number in this sequence? 4, 5, 7, 10, 15, ?
A- 18
B- 22
C- 19
D-23
The missing number in the sequence is 22.
To find the missing number, we need to look for a pattern in the given numbers.
If we subtract each number from the next number in the sequence, we get the following:
5-4 = 1
7-5 = 2
10-7 = 3
15-10 = 5
So, the differences between the consecutive numbers are increasing by 1 each time.
Using this pattern, we can find the next number in the sequence by adding 6 to the last number (since the difference between the last two numbers is 5, we add 1 to get the next difference and add 6 to get the next number).
15 + 6 = 21
Therefore, the missing number should be 22, not D-23D-23.
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Help!! I'll name you the brainliest!!
Just get a brain
S
Jksjsisisisjsjjsjdjdjdjd
2
When a set of data has an even member the median is found by:
(1 Point)
O adding the two middle numbers
finding the mean of the two numbers at the end.
O finding the mean of the middle members
O choosing the number in the middle
Answer:
It is 1, or A: adding the two middle numbers
Step-by-step explanation:
When you think of it, here's an example:
15
23
55
34
Add 23 and 55:
23+55=78
We've got this now:
15
78
34
Now, all you've gotta do is find the mediam.
Hope this helped, and please mark as Brainliest <3