Answer:
The y intercept is -5
Step-by-step explanation:
We in crease the y value by 5 each time x increases by 1, so we decrease the y value by 5 as we decrease x by 1
We want the value when x is zero
x=1 y = 0
Subtract 1 from x and 5 from y
x = 1-1 y = 0-5
x = 0 y = -5
The y intercept is -5
Which expression is equal to 4^5 x 4^-7 divided by 4^-2
A: 4^5 divided by 4^-9
B: 4^0
C: 4^-4
D: (4^5)(4^-2)/4^-7
What is the appropriate angle measure formed by a clock that reads 2 o clock
if x2 y2 z2 = 9, dx dt = 8, and dy dt = 9, find dz dt when (x, y, z) = (2, 2, 1).
Using implicit differentiation dz/dt = -34
What is differentiation?Differentiation is the process of finding the derivative of a function.
Since x² + y² + z² = 9, dx/dt = 8, and dy/dt = 9, we need to find dz/dt when (x, y, z) = (2, 2, 1).
So, differentiating implicitly and also applying the chain rule, we have that
x² + y² + z² = 9
d(x² + y² + z²)/dt = d9/dt
dx²/dx × dx/dt + dy²/dy × dy/dt + dz²/dz × dz/dt = d9/dt
2xdx/dt + 2ydy/dt + 2zdz/dt = 0
xdx/dt + ydy/dt + zdz/dt = 0
Making dz/dt subject of the formula, we have that
zdz/dt = -(xdx/dt + ydy/dt)
dz/dt = -(xdx/dt + ydy/dt)/z
Given that
dx/dt = 8, dy/dt = 9, x = 2, y = 2 and z = 1Substituting the values of the variables into the equation, we have that
dz/dt = -(xdx/dt + ydy/dt)/z
dz/dt = -(2 × 8 + 2 × 9)/1
= -(16 + 18)/1
= - 34
So, dz/dt = -34
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The question is incomplete. Here is the complete question
If x² + y² + z² = 9, dx/dt = 5, and dy/dt = 4, find dz/dt when (x, y, z) = (2, 2, 1).
1,164 divided by 80
Answer: The answer is 14.55
Step-by-step explanation:
Answer:
1,164 ÷ 80 is equal to 14.55.
Jimmy invests $4,000 in an account that pays 2% annual interest, compounded semi-annually. What is his balance, to the nearest cent, at the end of 10 years?
Answer:
$4,880.80
Step-by-step explanation:
A = P(1 + r/n)^nt
Where,
A = future value
P = principal = $4,000
r = interest rate = 2% = 0.02
n = number of periods = 2
t = time = 10
A = P(1 + r/n)^nt
= 4000( 1 + 0.02/2)^2*10
= 4000(1 + 0.01)^20
= 4000( 1.01 )^20
= 4000(1.2202)
= 4,880.8
A = $4,880.80 to the nearest cents
Jimmy's balance after 10 years will be $ 4880.8
Jimmy invests $4,000 in an account compounded semi annually according to the given conditions
Given
Principal = $4000
Annual Internet Rate = 2% =0.02
Let the amount be Amount = A
Compounding frequency = 2
Time = 10 years
Equation for amount of compound interest is given by the equation (1)
\(A = P\times (1 + \dfrac{r}{n} ) ^{nt}.....(1) \\A = 4000 ( 1 + \dfrac{0.02}{2} )^{ 2\times10}\\A = 4000 (1+ 0.01 )^{20} \\A = 4880.8\)
So his balance after 10 years will be $ 4880.8
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The sum of two numbers is
greater than either number
Answer:
x+ x=?
Step-by-step explanation:
What is the slope of the line shown below?
10+
5
(9, 1)
o A. -
OB.
OC
10
15
(-3,-7) 5
10
O
D.
WIN
Answer:
D 2/3
Step-by-step explanation:
Rise over run. The x values is -3 and 9 which is the distance or run between the dots. Find the distance by finding which number is between then so -3+x=9 where x is 12. The y values are -7 and 1. Find y where -7+y=1 where y is 8. That is the rise. So the rise is 8 and that is over the run, 12, gives you 8/12 which can be simplified to 2/3.
The optimal height h of the letters of a message printed on pavement is given by the formula h=0.00252d².²⁷ / e . Here d is the distance of the driver from the letters and e is the height of the driver's eye above the pavement. All of the distances are in meters. Find h for the given values of d and e . d=25 m, e=2.3m
The term "optimal height" typically refers to the ideal or best-suited height for a particular purpose or context. The specific meaning of optimal height can vary depending on the context in which it is used.
To find the optimal height (h) for the given values, we can substitute these values into the formula:
h = 0.00252d².²⁷ / e
Substituting d = 25 m and e = 2.3 m:
h = 0.00252(25)².²⁷ / 2.3
Calculating the values within parentheses first:
h = 0.00252 * 625².²⁷ / 2.3
Next, raise 625 to the power of 2.27:
h = 0.00252 * (625^2.27) / 2.3
Using a calculator or computer software, we can find the value of 625^2.27:625^2.27
≈ 810,529.948
Substituting this value back into the formula:
h ≈ 0.00252 * 810,529.948 / 2.3
Now, perform the multiplication:
h ≈ 2,045.520 / 2.3h ≈ 889.355652
Therefore, for the given values of d = 25 m and e = 2.3 m, the optimal height h is approximately 889.36 meters.
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When d = 25 m and e = 2.3 m, the optimal height of the letters, h, is approximately 0.3107 meters
To find the optimal height, h, of the letters, we can substitute the given values of d and e into the formula
\(h = \frac{0.00252d^{2.27}}{e}\)
Given values:
d = 25 m
e = 2.3 m
Substituting these values into the formula, we have:
\(h = \frac{0.00252(25)^{2.27}}{2.3}\)
First, let's simplify the numerator:
\(0.00252 * (25)^{2.27} &= 0.00252 * 25^{2.27} \\&\approx 0.00252 * 282.8475 \\&\approx 0.7135\)
Now, substitute the simplified values into the formula:
h = 0.7135 / 2.3
To find the value of h, divide the numerator by the denominator:
h ≈ 0.3107
Therefore, when d = 25 m and e = 2.3 m, the optimal height of the letters, h, is approximately 0.3107 meters.
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David rented a truck for one day. there was a base fee of $14.99 and there was an additional charge of 94 cents for each mile driven. david had to pay $209.57 when he returned the truck. for how many miles did he drive the truck
To determine the number of miles David drove the truck, we need to subtract the base fee and divide the remaining amount by the additional charge per mile.
Let's denote the number of miles driven by 'm'. The equation can be set up as follows:
$209.57 - $14.99 = $0.94 * m
Simplifying the equation:
$194.58 = $0.94 * m
To solve for 'm', we divide both sides of the equation by $0.94:
m = $194.58 / $0.94
m ≈ 206.7
Therefore, David drove the truck for approximately 206.7 miles. Since it's not possible to drive a fraction of a mile, we can assume that David drove either 206 or 207 miles, depending on the rounding convention used.
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What is the mean of 3, 5, 4, 3, 5, 4
Step-by-step explanation:
FX=3+5+4+3+5+4
=24
N=6
mean (x)=?
Now,
x=FX÷N
=24÷6
=4
can anyone help fast please
The rate at which Riya is applying mulch in m³/m² is 0.25m³/m²
From the question, we are to determine the rate at which Riya is applying mulch in m³/m²
From the given information, we have that
Riya is applying mulch to her garden at a rate of 250,000 cm³ of mulch for every m² of the garden space
That is,
The rate at which she is applying mulch is 250,000 cm³/m²
Now, to determine the rate in m³/m², we will convert 250,000 cm³ to m³
Converting 250,000 cm³ to m³
250,000 cm³ = 250000 × (10⁻²)³ m³
= 250000 × 10⁻⁶ m³
= 0.25 m³
Hence, the rate at which Riya is applying mulch in m³/m² is 0.25m³/m²
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Explain why the graph of a linear equation in the form of y = c is the horizontal line, parallel to the x axis passing through the point (0, c)
The line y = c is horizontal line, parallel to the x axis passing through the point (0, c).
What is Equation of line?The equation of line in point-slope form passing through the points
(x₁ , y₁) and (x₂, y₂) with slope m is defined as;
⇒ y - y₁ = m (x - x₁)
Where, m = (y₂ - y₁) / (x₂ - x₁)
Given that;
The line is,
⇒ y = c
Now, We know that;
Equation of line is,
⇒ y = mx + b
Where, m is slope and b is y - intersect.
When m = 0;
Equation of line is,
⇒ y = b
Hence, This line is the horizontal line, parallel to the x axis passing through the point (0, b).
Thus, The line y = c is horizontal line, parallel to the x axis passing through the point (0, c).
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ANSWER THIS PLZZZZZZ
a password must contain four characters in the following order: uppercase letter; lowercase letter; number; upper- or lower-case letter. if no upper or lower case letters can be repeated in the sequence, how many password combinations are possible?
Possible options:
uppercase letter: 26
lowercase letter: 26
number: 10
upper or lowercase letter: 50
Note: I'm interpreting the "no upper or lower case letters can be repeated in the sequence" to mean you could have Aa0b, where A is used as the uppercase and a is used as the lower case letter, but then you can't use A or a for the last character.
26 · 26 · 10 · 50 = 338,000 combinations
Now is using "A" and "a" isn't allowed, then you have:
Possible options:
uppercase letter: 26
lowercase letter: 25
number: 10
upper or lowercase letter: 48
26 · 25 · 10 · 48 = 312,000 combinations
Let f(t)=t2+7t+2. Find a value of t such that the average rate of change of f(t) from 0 to t equals 10.
t = ???
The value of t that satisfies the condition of the average rate of change of f(t) from 0 to t being equal to 10 can be found by setting up an equation and solving for t.
To find the average rate of change, we need to calculate the difference in the function values f(t) at t and 0, and divide it by the difference in the corresponding t-values. The equation can be set up as follows:
( f(t) - f(0) ) / ( t - 0 ) = 10
Substituting the given function f(t) = t^2 + 7t + 2, we have:
( t^2 + 7t + 2 - f(0) ) / t = 10
Simplifying the equation further, we get:
( t^2 + 7t + 2 - 2 ) / t = 10
( t^2 + 7t ) / t = 10
Now, we can solve this equation to find the value of t. By simplifying and rearranging terms, we get:
t + 7 = 10
t = 3
Therefore, the value of t that satisfies the given condition is t = 3.
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In a large population, 64 % of the people have been vaccinated. If 5 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated
In a large population, 64 % of the people have been vaccinated. If 5 people are randomly selected, then the probability that AT LEAST ONE of them has been vaccinated is 99.78% or 0.9978.
The probability that at least one person is vaccinated among a sample of five people selected randomly from a population in which 64% have been vaccinated is the complement of the probability that none of the five selected have been vaccinated. The probability of at least one vaccinated person is:
Probability of at least one vaccinated person = 1 - Probability that none of the selected have been vaccinated.
To find this probability, you first need to find the probability that none of the five selected have been vaccinated.
Probability of selecting one person who is not vaccinated = 1 - 0.64 = 0.36
Probability of selecting five persons who are not vaccinated = 0.36 × 0.36 × 0.36 × 0.36 × 0.36= 0.0022
So, the probability of at least one vaccinated person in the sample of five is:
Probability of at least one vaccinated person = 1 - Probability that none of the selected have been vaccinated
= 1 - 0.0022
= 0.9978
Therefore, the probability that at least one person is vaccinated among a sample of five people selected randomly from a population in which 64% have been vaccinated is 0.9978.
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The roots of a plant reach down 3/4 inches below ground. How many inches is the plant above the
ground?
12 1/2 in and 3 3/4 in
Answer:
sorry man i need free answers, good luck doe
Step-by-step explanation:
Answer:
39/4 or 9 3/4
Step-by-step explanation:
27/2 - 15/4
2 times 2 = 4 so 2 times 27=54
54/4 - 15/4 =39/4
: sephora is interested in improving its store layouts to allow for better flow during busy shopping periods. the researcher in charge of the study would like to examine shopper patterns to determine how frequently customers turn left when they walk into the store and which aisles are most popular. the best method to collect this data would be
To conduct a field study by observing shopper behavior in the store.
The researcher can track the number of customers who turn left upon entering the store and the number of customers who turn right, as well as the number of customers who go straight ahead. This information can be recorded manually or using a mobile device.
Additionally, the researcher can track which aisles are most frequently visited by placing tracking devices in each aisle or using cameras to capture foot traffic patterns. This information can then be analyzed to identify the most popular aisles and understand the flow of foot traffic within the store.
It's important to consider that the researcher should also consider other factors that may influence shopper behavior, such as promotions, store layout, and signage. To obtain a comprehensive understanding of shopper patterns, the researcher may also consider conducting surveys or interviews with customers to gather additional insights.
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Given the related graph 0=-(x+2) 2+3
Answer:
it’s D
Have a Nice Best Day : )
one sample has a variance of s2 = 10 and a second sample has a variance of s2 = 6.if the two samples have the same number of scores, what is the pooled variance for the two samples?
The pooled variance for the two samples is (8n - 8) / (n - 1)
How we can get the pooled variance for the two samples?
To calculate the pooled variance for two samples, we need to combine the variances of both samples. The formula for pooled variance is:
s_p^2 = [(n_1 - 1)s_1^2 + (n_2 - 1)s_2^2] / (n_1 + n_2 - 2)where s_p^2 is the pooled variance, s_1^2 is the variance of the first sample, s_2^2 is the variance of the second sample, n_1 is the sample size of the first sample, and n_2 is the sample size of the second sample.
Plugging in the given values, we get:
s_p^2 = [(n - 1)(10) + (n - 1)(6)] / (2n - 2)where n is the sample size for both samples.
Simplifying this equation, we get:
s_p^2 = (16n - 16) / (2n - 2)To simplify the expression further, we can divide both the numerator and denominator by 2:
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-4×(-2)[2×(-6)+3×(2×6-4-4)]
\(\large{\underline {\underline {\frak {SolutioN:-}}}}\)
➝ -4 × (-2) [2 × (-6)+ 3×(2×6-4-4) ]
➝ -4 × (-2) [2 × (-6) + 3 × (12-4-4) ]
➝ -4 × (-2) [2 × (-6) + 3 × (12-8) ]
➝ -4 × (-2) [2 × (-6) + 3 × (4) ]
➝ -4 × (-2) [2 × (-6) + 12 ]
➝ -4 × (-2) [(-12) + 12 ]
➝ -4 × (-2) [0]
➝ -4 × 0
➝ 0
Answer:
-4*-2
Step-by-step explanation:
the multiple of both side is 4*2*,26+*32*--=6 44
HELP PLEADE QUICK DHOW YOUR WORK!!!!!
best answer gets brainliest
Answer:
m= 70
s= 40
a= 110
d= 40
Step-by-step explanation:
Angle M is equal to 70 because it is an isoleases triangle.
The 3 sides of a triangle is equal yo 180. So if angle m is 70, then 70+70 is 140. 180-140 is 40. This makes angle s= 40.
Now we have to find angle a. Angle a and 70 make a straight line. So the line is 180. 180-70 is 110. Angle a is equal to 110.
Now we have to find angle d. As I said before All the angles of a triangle equal to 180. 30+110= 140 now 180 - 140= 40. This makes angle d= 40.
TRUE/FALSE. the number of degrees of freedom in cross-tabulation data with three rows and four columns is 12.
FALSE. The number of degrees of freedom in cross-tabulation data is calculated by subtracting 1 from the product of the number of rows and columns.
Therefore, in this case, the number of degrees of freedom would be (3-1) x (4-1) = 6.
Degrees of freedom refer to the number of independent pieces of information in a data set, which can be used to calculate statistical significance and test hypotheses.
In cross-tabulation, degrees of freedom indicate the number of cells in the contingency table that are not predetermined by the row and column totals.
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the base of a right prism has an area of 10 square feet. the height of the prism is 6 feet. what is its volume?
The volume of the right prism with a base area of 10 square feet and a height of 6 feet is 60 cubic feet.
A prism is a polyhedron that has a base and a top face that are the same in size and shape, with sides connecting them that are rectangles in a right prism.
A right prism is a prism in which all of the side faces are perpendicular to the base.
Therefore, the height of the right prism is perpendicular to the base as well.
A right prism has a volume equal to the product of the base area and the height.
This formula can be represented as:
V = Bh
Here, B represents the area of the base, and h represents the height.
The volume of the right prism can be found by multiplying the area of the base by the height of the prism, according to the formula:
V = Bh.
In this problem, the area of the base of the prism is given to be 10 square feet.
The height of the prism is 6 feet.
We can simply substitute these values into the formula to obtain the volume of the right prism as follows:
V = BhV
= 10 × 6V
= 60
Therefore, the volume of the right prism is 60 cubic feet.
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. find the unit tangent vector, the unit normal vector, and the binormal vector of r(t) = sin(2t)i 3tj 2 sin2 (t) k
The unit tangent vector, unit normal vector, and the binormal vector of r(t) = sin(2t)i 3tj 2 sin2(t) k can be obtained using the formulae:T(t) = r'(t) / ||r'(t)||N(t) = T'(t) / ||T'(t)||B(t) = T(t) x N(t) where r(t) is the position vector at time t, ||r'(t)|| is the magnitude of the derivative of r(t) with respect to time, i.e. the speed, and x denotes the cross product of two vectors.
Given r(t) = sin(2t)i + 3tj + 2 sin2(t) k
The derivative of r(t) is given by r'(t) = 2 cos(2t) i + 3 j + 4 sin(t) cos(t) k
The magnitude of the derivative of r(t) with respect to time is ||r'(t)|| = √(4cos2(2t) + 9 + 16sin2(t)cos2(t))
= √(13 + 3cos(4t))
Thus,T(t) = r'(t) / ||r'(t)||= [2 cos(2t) i + 3 j + 4 sin(t) cos(t) k] / √(13 + 3cos(4t))
N(t) = T'(t) / ||T'(t)|| where T'(t) is the derivative of T(t) with respect to time.
We obtain T'(t) = [-4 sin(2t) i + 4 sin(t)cos(t) k (13 + 3cos(4t))3/2 - (2cos(2t)) (-12 sin(4t)) / (2(13 + 3cos(4t))]j (13 + 3cos(4t))3/2
= [-4 sin(2t) i + 12cos(t)k] / √(13 + 3cos(4t))
Thus,N(t) = T'(t) / ||T'(t)||= [-4 sin(2t) i + 12cos(t)k] / √(16sin2(t) + 144cos2(t))
= [-sin(2t) i + 3 cos(t) k] / 2B(t) = T(t) x N(t)
= [2 cos(2t) i + 3 j + 4 sin(t) cos(t) k] x [-sin(2t) i + 3 cos(t) k] / 2
= [3 cos(t)sin(2t) i + (6 cos2(t) - 2 cos(2t)) j + 3 sin(t)sin(2t) k] / 2
Therefore, the unit tangent vector, unit normal vector, and the binormal vector of r(t) = sin(2t)i + 3tj + 2 sin2(t) k are:
T(t) = [2 cos(2t) i + 3 j + 4 sin(t) cos(t) k] / √(13 + 3cos(4t))N(t)
= [-sin(2t) i + 3 cos(t) k] / 2B(t) = [3 cos(t)sin(2t) i + (6 cos2(t) - 2 cos(2t)) j + 3 sin(t)sin(2t) k] / 2
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are two of the same looking triangle but different sizes mean they are congruent?
Answer:
No
Step-by-step explanation:
They are similar
Answer:
Congruent triangles Two or more triangles that have the same size and shape are called congruent triangles. The four triangles are congruent with each other regardless whether they are rotated or flipped. The congruence of two objects is often represented using the symbol
Step-by-step explanation:
A class has 30 students. 18 are boys. What is the ratio of boys to girls? (you must simplify)
Answer:
18:12
simplified 3:2
this is the answer to your problem
The ration between boys and girls are - 18:12
when simplified- 3:2
What is the slope of the line joining (1, 4) and (-3, 2)?
Answer:
1/2
Step-by-step explanation:
The slope of a line is defined as the change in y-value divided by the change in x-value between two points on the line. To find the slope of the line joining (1, 4) and (-3, 2), we can use the formula:
slope = (y2 - y1) / (x2 - x1)
Plugging in the coordinates of the two points, we get:
slope = (2 - 4) / (-3 - 1)
slope = -2 / -4
slope = 1/2
So the slope of the line joining (1, 4) and (-3, 2) is 1/2.
Answer:
1/2
Step-by-step explanation:
Write an equation in slope intercept form for the line with the point (-6,5) and has a slope of -5/2
Step-by-step explanation:
I don't understand what u mean
Answer:
y = -5/2x - 10
Step-by-step explanation:
You plug in the slope for m, so you have y = -5/2x + b.
You then plug in the x and y values from the given point to isolate b.
(5) = (-5/2)(-6) + b
5 = 15 + b
b = -10
Plug b into the initial equation, and you have your slope intercept form.
y = -5/2x - 10
Hope this helped!
What is the remainder when x 3 1 is divided by x 3 x 1?
The remainder when x³ - 1 is divided by (x + 3) is -28
How to determine the remainder of the polynomial division?The functions are given as
x 3 1 is divided by x 3
Rewrite them as
f(x) = x³ - 1 is divided by (x + 3)
Set the divisor to 0
So, we have
x + 3 = 0
Determine the value of x
This gives
x = -3
By the remainder theorem
Substitute x = -3 in the function f(x)
So, we have
f(-3) = (-3)³ - 1
Evaluate the expression
f(-3) = -28
By the remainder theorem, this represents the remainder
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