Rate at which the people moving apart 15 min after the woman starts walking is 22.214 ft/sec.
Given, Speed of man = 5ft/sec
A man walks at 5ft/sec .
5 minutes = 300 seconds
Speed of woman = 7ft/sec.
Distance covered by woman = 900 ×7
= 6300ft.
Distance covered by man in 15 minutes = 900 × 5
= 4500ft.
Total distance covered by the man = 900 + 4500 + 6300
= 11700ft.
Total distance covered by the woman = 6300ft
(900 + x+ y)² + 500² = z²
x = 4500ft
y = 6300ft
Put the values,
(900 + 4500 + 6300)² + 500² = z²
z = 6320.23
Differentiate (900 + x+ y)² + 500² = z² with respect to z,
\(2z\frac{dz}{dt} = 2(900 + x + y)(dx/dt + dy/dt)\)
\(\frac{dz}{dt} = (900 + 4500 + 6300)(5 + 7)/ 6320.23\\\frac{dz}{dt} = 22.214 ft/sec\)
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The first steps in writing f(x) = 4x2 + 48x + 10 in vertex form are shown. f(x) = 4(x2 + 12x) + 10 (twelve-halves) squared = 36 What is the function written in vertex form?
Answer:
\(f(x)=4(x+6)^2-134\)
Step-by-step explanation:
We are required to write the function\(f(x) = 4x^2 + 48x + 10\) in vertex form.
First, bring the constant to the left-hand side.
\(f(x) -10= 4x^2 + 48x\)
Factorize the right hand side.
\(f(x) -10= 4(x^2 + 12x)\)
Take note of the factored term(4) and write it in the form below.
\(f(x) -10+4\Box= 4(x^2 + 12x+\Box)\)
\(\Box = (\frac{\text{Coefficient of x}}{2} )^2\\\\\text{Coefficient of x}=12\\\\\Box = (\frac{12}{2} )^2 =6^2=36\)
Substitute 36 for the boxes.
\(f(x) -10+4\boxed{36}= 4(x^2 + 12x+\boxed{36})\)
\(f(x) -10+144= 4(x^2 + 12x+6^2)\)
\(f(x) +134= 4(x+6)^2\\f(x)=4(x+6)^2-134\)
The function written in vertex form is \(f(x)=4(x+6)^2-134\)
Answer:
C
Step-by-step explanation:
I just finished the unit test on Edge. and got a 100% and I selected "c" as my answer.
what is the value of x in the equation 0.3x = 0.2 - 0.2x?
Hey there!
0.3x=0.2−0.2x
Step 1: Simplify both sides of the equation.
0.3x=0.2−0.2x
0.3x=0.2+−0.2x
0.3x=−0.2x+0.2
Step 2: Add 0.2x to both sides.
0.3x+0.2x=−0.2x+0.2+0.2x
0.5x=0.2
Step 3: Divide both sides by 0.5.
0.5x/0.5=0.2/0.5
x=0.4
Therefore, x = 0.4
can anyone identify the center & radius of these
Answer:
43 is the answer to your question
An automobile travels 415 miles on 16 2/3 gallons of gasoline.
a) How many miles per gallon does the car get on the trip? (Enter your answer as a simplified mixed number.)
b) How many gallons would be required for the car to travel 498 miles?
The same honey is sold in 2 different size jars. Large jar=540 for £4.10 small jar= 360 for £2.81 which jar is the best value for money?
The large jar has better value for money than the smaller one.
Which jar is the best value for money?To see which jar is the best value for the money, we need to take the quotient between the cost of each jar and the size. The smaller that value gets, the best value we have.
For the first jar we have:
q = £4.10/540 = 0.0075
For the second jar we have:
q' = £2.81/360 = 0.0078
Then we can see that the large jar has the best value for money.
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Need answer for this
6 ÷ [ 3 × (5 - 3) ÷ (4² + 3) ] ÷ 2
= 6 ÷ [ 3 × 2 ÷ 19 ] ÷ 2
= 6 ÷ 6/19 ÷ 2
= 19/2
= 8.5
Ok done. Thank to me :>
11/40 fraction into a decimal
Answer:
0.275 is the answer for this question.
one third plus four sixths plus six eighteenths equals blank
Answer:
1 1/3
Step-by-step explanation:
Answer:
7/6
Step-by-step explanation:
1/3+4/8+6/18=7/6
In a survey, people were asked whether they like baseball or whether they like hockey. Here are the results: Likes hockey Doesn’t like hockey Likes baseball 12 18 Doesn’t like baseball 14 6 What value is missing to convert the two-way table to a two-way relative frequency table? Likes hockey Doesn’t like hockey Likes baseball 0.24 0.36 Doesn’t like baseball 0.28
The missing value 'x' in the two-way relative frequency table is 0.36.
To convert the two-way table to a two-way relative frequency table, we need to calculate the relative frequencies for each category. Relative frequency is calculated by dividing the frequency of a particular category by the total count in that row or column.
Let's denote the missing value as 'x'. To find the value of 'x', we need to ensure that the sum of the relative frequencies in each row and each column adds up to 1.
First, let's calculate the relative frequencies for each category:
Likes hockey: The total count in this row is 12 + 18 = 30.
Relative frequency of "Likes hockey" = 12/30 = 0.4
Relative frequency of "Doesn't like hockey" = 18/30 = 0.6
Likes baseball: The total count in this column is 12 + 14 = 26.
Relative frequency of "Likes baseball" = 12/26 ≈ 0.4615
Relative frequency of "Doesn't like baseball" = 14/26 ≈ 0.5385
To ensure that the relative frequencies add up to 1, we can set up the following equations:
0.4 + x = 1 (sum of relative frequencies in the "Likes hockey" row)
0.4615 + 0.5385 + x = 1 (sum of relative frequencies in the "Likes baseball" column)
Simplifying the equations, we have:
x = 0.6 (1 - 0.4) = 0.6 * 0.6 = 0.36
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Find the x-intercepts of the graph.
20
X =
10
y
2
4
y=-3x² + 14x + 5
], x=
X
X
The x-intercept of the function is (-1/3, 0) and (5, 0)
Given is a graph of a parabola having equation y = -3x²+14x+5, we need to find the x-intercept of the graph,
So to find the x-intercept put y = 0,
Therefore,
-3x²+14x+5 = 0
-3x²+15x-x+5 = 0
-3x(x-5)-1(x-5) = 0
(-3x-1)(x-5) = 0
Therefore,
x = -1/3 and x = 5
Hence the x-intercept of the function is (-1/3, 0) and (5, 0)
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Jalla's hourly wage is $27.932. Round her salary to the nearest cent.
how to divide −6x2−3x+12 by 3x−3.
solve -6x2-3x+12 dived by 3x-3 using pemdas
Step-by-step explanation:
The question is how to divide this this is how to solve it
Let A, B, C be three points with position vectors a, b, c respectively. You may assume that the three points A, B, C do not all lie on the same straight line. Let D, E, F be the midpoints of the line-segments BC, AC, AB respectively. What is the point with position vector 1/3 (a+b+c)?
The midpoint of three points with the position vector 1/3(a + b + c) is given by:
P = (b + c - B - C) / 2 + (1/3)(b + c)
The point with the position vector 1/3(a + b + c) is given by:
P = F - (2/3)D - (1/3)E + (1/3)(b + c)
To find the point with the position vector 1/3(a+b+c), we can use the fact that the position vector of a point that divides a line segment in a given ratio can be found by taking the weighted average of the position vectors of the endpoints.
Given that D, E, and F are the midpoints of line segments BC, AC, and AB, respectively, we know that:
D = (B + C) / 2
E = (A + C) / 2
F = (A + B) / 2
To find the point with the position vector 1/3(a+b+c), we can substitute a = 3F - 2D - E into the equation:
1/3(a + b + c) = 1/3((3F - 2D - E) + b + c)
Expanding the equation further:
1/3(a + b + c) = 1/3(3F - 2D - E + b + c)
= (F - (2/3)D - (1/3)E) + (1/3)(b + c)
Therefore, the point with the position vector 1/3(a + b + c) is given by:
P = F - (2/3)D - (1/3)E + (1/3)(b + c)
Substituting the midpoints:
P = (A + B) / 2 - (2/3)((B + C) / 2) - (1/3)((A + C) / 2) + (1/3)(b + c)
= (A + B - 2B - 2C - A - C + b + c) / 2 + (1/3)(b + c)
= (b + c - B - C) / 2 + (1/3)(b + c)
Therefore, the midpoint of three points with the position vector 1/3(a + b + c) is given by:
P = (b + c - B - C) / 2 + (1/3)(b + c)
The point with the position vector 1/3(a + b + c) is given by:
P = F - (2/3)D - (1/3)E + (1/3)(b + c)
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The figure is cut into 15 equal pieces. Shade 2/5 of the figure
Answer: Shade 6 pieces
Step-by-step explanation:
Because 2/5 of 15 is 6
-3w-4+5w=32 what is the solution?
Answer:
w = 18
Step-by-step explanation:
Step 0: Set up the equation
=> -3w - 4 + 5w = 32
Step 1: Move the same variable together
=> -3w + 5w = 32 + 4
Step 2: Add up and simplify
=> 2w = 36
Step 3: Divide both by 2
=> w = 18
Answer:
W=18
Step-by-step explanation:
-3w-4+5w=32
-3w+5w-4=32
2w-4=32
2w=32+4
2w=36
W=18
How do you do this question?
Step-by-step explanation:
Use the first fundamental theorem of calculus.
∫₆¹⁰ f'(x) dx = f(10) − f(6) = 8 − 8 = 0
A safety officer wants to prove that μ = the average speed of cars driven by a school is less than 25 mph. Suppose that a random sample of 14 cars shows an average speed of 24.0 mph, with a sample standard deviation of 2.2 mph. Assume that the speeds of cars are normally distributed. What is the p-value?
Answer:
\(t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70\)
The degrees of freedom are given by:
\(df=n-1=14-1=13\)
The p value for this case would be given by:
\(p_v =P(t_{(13)}<-1.70)=0.0565\)
Step-by-step explanation:
Information given
\(\bar X=24\) represent the mean height for the sample
\(s=2.2\) represent the sample standard deviation
\(n=14\) sample size
\(\mu_o =25\) represent the value that we want to test
t would represent the statistic
\(p_v\) represent the p value for the test
Hypothesis to verify
We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:
Null hypothesis:\(\mu \geq 25\)
Alternative hypothesis:\(\mu < 25\)
The statistic would be given by:
\(t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}\) (1)
Replacing the info given we got:
\(t=\frac{24-25}{\frac{2.2}{\sqrt{14}}}=-1.70\)
The degrees of freedom are given by:
\(df=n-1=14-1=13\)
The p value for this case would be given by:
\(p_v =P(t_{(13)}<-1.70)=0.0565\)
How many solutions does the following equation have? 14(z+3)=14z+21
Answer:
No solutions
Step-by-step explanation:
14(z + 3) = 14z + 21
Expand brackets.
14z + 42 = 14z + 21
Subtract 14z on both sides.
42 = 21
There are no solutions.
Answer:
No solution
Step-by-step explanation:
First, We have to simplify the right side.
Distribute 14, 14z+42.
Now the equation stands as 14z+42=14z+21
Subtract 14z from both sides,
this makes it 42=21.
We know when the solution is #=#, our answer is no solution.
(X to the second power y to the fifth power)5
Answer:
\((x^2y^5)5 = 5x^2y^5\)
Step-by-step explanation:
Remove the parentheses to factor.
\(= x^2y^5 \times 5\)
Flip the expression, creating a leading term and simplifying the equation.
\(= 5x^2y^5\)
Rehan was playing a game of Burger shop. He scored points for each burger he sell. Rehan
scored 140 points for selling his first burger. He scored 160 points for selling his second burger, 180
for selling his third burger, and so on .
(i) Find the number of points Rehan scored for selling his 20th burger.
(ii) Find the total number of points Rehan scored for selling his 20 burgers
Step-by-step explanation:
the answer is in the above image
The polynomial function f(x) = x³ - 4x²-3x + 18 has (x+2) as one of its linear factors. Use long division to find the other linear factors.
Separate multiple factors with a comma. If there are any repeated factors, only write them once.
The complete factorization of the polynomial function f(x) = x³ - 4x² - 3x + 18 is (x + 2)(x - 22).
What is a polynomial ?
A polynomial is a mathematical expression involving a sum of powers in one or more variables (indeterminates) multiplied by coefficients.
where n is a non-negative integer (the degree of the polynomial), x is the variable, and (the coefficients of the polynomial). The highest power of x in the expression is n, and this term is called the leading term. The coefficient of the leading term, a_n, is called the leading coefficient.
To find the other linear factors of the polynomial function f(x) = x³ - 4x² - 3x + 18, we can use long division by dividing the polynomial function by (x + 2).
Here's how the long division would look like:
x³ - 4x² - 3x + 18
÷ x + 2
__________________________
x² - 6x - 20
÷ x + 2
__________________________
x - 22
÷ x + 2
__________________________
-20
here -20 is the remainder.
The complete factorization of the polynomial function f(x) = x³ - 4x² - 3x + 18 is (x + 2)(x - 22).
So, the other linear factors are x - 22.
Therefore, The complete factorization of the polynomial function f(x) = x³ - 4x² - 3x + 18 is (x + 2)(x - 22).
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Please help with this!!! Multiply 6x5 7/8
Answer:
35 and 1/4
Step-by-step explanation:
6x47/8
6/1x47/8
282/8
35 1/4 or 35.25
Mario needs a loan to buy a tractor for his farm. He qualified for a loan at 2 different banks.
.
First Bank of Trust
Loan Amount: $25,000
Annual Simple Interest
Rate: 6.5%
Loan Length: 4 years
What is
.
Enter your answer in the box.
.
Valor Bank
Loan Amount: $25,000
Annual Simple Interest
Rate: 4%
Loan Length: 6 years
total amount Mario will pay, including loan amount and interest, for the First Bank of Trust loan?
Answer:$31,500
Step-by-step explanation:
To calculate the total amount Mario will pay, including the loan amount and interest, for the loan from First Bank of Trust, we need to calculate the interest and add it to the loan amount.
The formula to calculate simple interest is:
Interest = (Loan Amount) x (Interest Rate) x (Loan Length)
Let's plug in the values given:
Loan Amount = $25,000
Interest Rate = 6.5% (or 0.065 as a decimal)
Loan Length = 4 years
Interest = $25,000 x 0.065 x 4 = $6,500
Now, let's calculate the total amount Mario will pay:
Total Amount = Loan Amount + Interest = $25,000 + $6,500 = $31,500
Therefore, the total amount Mario will pay, including the loan amount and interest, for the First Bank of Trust loan is $31,500.
please help for this question
Using the translation vector of 3 units up and 1 unit right resulted to image coordinate of
(3, 7)
(3, 5)
(2, 5)
The image is attached
How to find the translation vectorThe translation vector is of the rule 3 units up and 1 unit to the right
The coordinate of the preimage are
(2, 4)
(2, 2)
(1, 2)
The translation is done as below
(2 + 1, 4 + 3) = (3, 7)
(2 + 1, 2 + 3) = (3, 5)
(1 + 1, 2 + 3) = (2, 5)
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What is the y-intercept when the coordinate is 9,1 and the slope is 4 8
Answer:
the formula for this is y=mx+b
b stands for the y, m is the slope of the line, and x stands for the x axis!
Step-by-step explanation:
i am pretty sure your answer is -1.4
hope this helps I to help you out attached a screenshot
A loaf of bread that originally sold for $1.87 undergoes a 5% price increase each year. Find the new cost of a loaf of bread after 12 years.
Answer:
$2.99
Step-by-step explanation:
find 5% of $1.87 by multiplying 1.87 by 0.05. to get 0.0935. then multiply 0.0935 by 12 to get 1.122. round that to 1.12 and add it to the original 1.87 to get 2.99.
WILL MARK BRAINLIEST
Use the function below to find F(3)
F(x)=(1/5)^x
The value of the function F(3) will be 1/125. It is obtained by putting the value 3 in the place of x.
What is a function?A connection between independent variables and the dependent variable is defined by the function. Functions help to represent graphs and equations.
A function is represented by the two variables one is dependent and another one is an independent function. The relation between them is shown as y if dependent and x is the independent variable.
F(x)=(1/5)ˣ
F(3)=(1/5)³
F(3)=1/125
Hence, the value of the function F(3) will be 1/125.
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What is the degree of the polynomial, y^2+7x^14-10x^2?
The degree of the polynomial is 14
How to determine the degree of the polynomial?The polynomial is given as:
y^2+7x^14-10x^2
Here, we assume that the variable of the polynomial is x
The highest power of x in the polynomial y^2+7x^14-10x^2 is 14
Hence, the degree of the polynomial is 14
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Find the length and width of a rectangle that has the given area and a minimum perimeter.
Area: 121 square feet
Length = _ meters
Width = _ meters
The Length and Width = 11 feet with minimum perimeter = 22 feet
What exactly is a math area?
The amount of space occupied by a flat (2-D) surface or an object's shape is known as its area. Draw a square on a piece of paper using a pencil. A 2-D figure, that is. The term "Area" refers to the area that a shape occupies on paper. Now picture that your square is composed of smaller unit squares.
Given that:
A=s^2 = 121, where s is a square side.
s=sqr121 = 11
length=width = 11
perimeter =4s=4(11)=22
A=LW
121=LW
L=121/W
utilizing calculus,
Perimeter = P = 2L+2W = 2(121/W) + 2W = 242/W + 2W
Set the derivative equal to zero before determining W.
P'(W) = 2 -242/W^2 = 0
2W^2 =242
W^2 = 121
W =sqr121 = 11 = width of the rectangle that minimizes perimeter
L= 121/sqr121 = sqr121 = 11 = length of the rectangle that minimizes perimeter
L=W means a square with 4 sides each = 11
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Write 9/7 as a mixed number. Give your answer in its simplest form.
Answer:
1 2/7 ........................................
Answer:
1 2/7.
Step-by-step explanation:
Divide 9 by 7 :- this gives 1 with a remainder of 2.
So it is 1 2/7.