Answer:
The cyclist can travel 0.9 miles in 2 minutes.
Step-by-step explanation:
1 hour = 60 minutes
Set up a conversion equation:
27 mi/1 hr × 1hr/60 mins
It is easier to see when writing it on paper, but the fractions are set up in a way to cancel the units out until the only units left are miles and minutes
After multiplying the numerators together and then multiplying the denominators together, you should reach the answer:
27 mi/60 mins
The cyclist can travel 27 miles in 60 minutes, but how many miles can he travel in 2 minutes?
Set up an equation:
Variable x = number of miles
27 mi/60 mins = x/2 mins
Cross multiply
27 × 2 = 60 × x
54 = 60x
Divide both sides by 60
0.9 = x
The rule g = b + 3 expresses the relationship between the
number of girls g and the number of boys b in a classroom.
Rewrite this rule another way.
Answer:
g = 3 + b
b + 3 = g
3 + b = g
Step-by-step explanation:
Answer:
[see below]
Step-by-step explanation:
Rewriting the rule so 'b' would be the subject:
\(g = b + 3\\\\g - 3 = b + 3-3\\\\g-3=b\\\\\boxed{b=g-3}\)
Hope this helps.
true or false: the quantity represented by θ is a function of time (i.e., is not constant).
Answer: the answer to this is true
convert 22 2/5% into decimal
Answer:
0.224
Step-by-step explanation:
Multiply the whole number by the denominator:
22 × 5 = 110
Add the product you got in Step 1 to the numerator:
110 + 2 = 112
Divide the sum from Step 2 by the denominator:
112 ÷ 5 = 22.4
That's it folks! The answer to 22 2/5 in decimal form is displayed below:
22 2/5 = 22.40
\(22\frac{2}{5}\) % is equivalent to 0.225 as a decimal.
To convert \(22\frac{2}{5}\) % to a decimal, we divide the mixed number by 100.
Convert the mixed number 22 2/5 to an improper fraction:
\(22\frac{2}{5}\) = (22 × 5 + 2) / 5
= 112/5
Next, divide the resulting fraction by 100:
112/5 ÷ 100
= 112/5 × 1/100
= 112/500
Simplifying the fraction:
112/500
= 14/62
Divide numerator and denominator by 2:
= 7/31
=0.225
Therefore, \(22\frac{2}{5}\) % is equivalent to 0.225 as a decimal.
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Please help me I'm in fourth I'll give brainliest if you have a good answer :)
Answer:
1755
Step-by-step explanation:
When finding area, you want to multply the length, 45, by the width, 39. This yields the answer to the total area: 1755
ANOVA was used to test the outcomes of three drug treatments. Each drug was given to 20 individuals. The MSE for this analysis was 16. What is the standard deviation for all 60 individuals sampled for this study? a. 6.928 b. 48 c. 16 d. 4
The value of standard deviation is 4 .
According to the given problem the main information that can be observed is the value of the MSE
The MSE for the entire analysis is 16.
AUXILIARY INFORMATION:
There are 3 drug treatments.
Each drug has been give to 20 individuals . Hence there are 60 individuals in total.
WORKING THE SUM OUT:
The Mean Square Error (MSE) is calculated by dividing the Error Sum of Squares by the degrees of freedom.
Hence the MSE represents the variance(σ²).
MSE = σ²
Therefore standard deviation = √Variance = √MSE = √16 = 4 .
Hence option D will be correct .
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Solve. 6 · x = 42 plzzzzzz fast
Answer:
6 · x = 42 and x = 7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
BRAINIEST TO WHOEVER CAN ANSWER THIS QUESTION!
Find the product: 1 1/4×5 3/5.
Answer:
7
1x4+1/4 x 5 3/5
4+1/4 x 5 3/5
5/4x5 3/5
5/4 x 25+3/5
5/4x38/5
1/4x28
28/4
7
Answer:
=7
Step-by-step explanation:
(1 1/4)(5 3/5)
=5/4 (5 3/5)
=5/4 (28/5)
=7
Simplify: 3(s + 5)
3s + 15
3s + 5
8s
18s
Answer:
3s + 15
Step-by-step explanation:
Here,
3(s + 5)= 3(s) +3(5)
= 3s+15,,
i'll mark you brainliest for the answer<3
A vertical symmetrical summit curve has an ascending grade of +3.2% and a descending grade of -2.7% which intersect at station 11+145 whose elevation is at 220 m. If the length of the parabolic curve is 300m,
a. What is the vertical offset of the parabolic curve to the point of intersection of the tangent grades?
b. Where is the highest point of the curve located from the P.C?
C. What is the stationing of the highest point of the curve?
The vertical offset of the parabolic curve to the point of intersection of the tangent grades is 3.91 meters, and the highest point of the curve is located 100 meters from the P.C. The stationing of the highest point of the curve is at station 11+245.
a. To determine the vertical offset of the parabolic curve to the point of intersection of the tangent grades, we need to find the difference between the elevations of the ascending and descending grades at the intersection point. The vertical offset is given by the formula:
Vertical Offset = (Descending Grade Elevation - Ascending Grade Elevation)
Given that the ascending grade is +3.2% and the descending grade is -2.7%, we can calculate the elevations:
Ascending Grade Elevation = 220 m + (3.2/100) * 300 m = 229.6 m
Descending Grade Elevation = 220 m + (-2.7/100) * 300 m = 212.1 m
Therefore, the vertical offset is:
Vertical Offset = 212.1 m - 229.6 m = -17.5 m = 17.5 m (upward)
b. The highest point of the curve is located at a distance of 100 meters from the P.C. Since the length of the parabolic curve is given as 300 meters, the highest point is situated 1/3rd of the curve's length from the P.C. This implies that the highest point is 100 meters away from the P.C.
c. To determine the stationing of the highest point of the curve, we need to add the distance of the highest point from the P.C. to the stationing at the point of intersection. Given that the station at the point of intersection is 11+145, we can calculate the stationing of the highest point:
Stationing of the Highest Point = 11+145 + 100 = 11+245
Therefore, the stationing of the highest point of the curve is 11+245.
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Can someone please explain how to do this I going to have it on a test PLEASE HELP
Answer:
The Number is 11
Step-by-step explanation:
by first condition
we got it is an odd number
second condition
number less then12
third condition
between 10 to 14
Now,
odd number between 10 to 14
is 11 and 13
13 is greater then 12
therefore 11 is your answer
Terry buys an orange for 47p. He pays with a £1 coin. How much change does he get?
Answer:
if it works like the dollar 53p
Answer:
53p
Step-by-step explanation:
£1 = 100p
=> Change = 100p - 47p = 53p
According to the Yahoo website on Dec 8, 2012 the predicted daily high temperature in Fairbanks, AK for
the next 5 days was -2 degrees, 0 degrees, 3 degrees, -1 degrees, and -3 degrees Fahrenheit. What was the
average daily high temperature for that 5-day period?
Answer:
yes
Step-by-step explanation:
yes
Question 1: Which of these animals can travel at the greatest distance from sea level
Question 2: order the elevations of the animals from least to greatest
Answer:
Q1 : Ruppell's Giffrons
Q2 :
sperm whales
dolphins
missing birds
Ruppell's Giffrons
Step-by-step explanation:
I don't know if I can see the full picture, as it is clearly cut off.
my answers are based on what I can see :
Giffrons, migrating birds, dolphin and sperm whale.
here are the reasons for my 2 answers :
sea level = elevation of 0 ft. so, this is "point" 0.
Q1 now asks about what of the listed animals can move the farthest away from 0.
and distance is always positive. now matter the direction we are going. if we go from 0 to +5, the distance is 5. and if we go from 0 to -5, the distance is also 5.
so, we are looking for the animal with the largest absolute value of elevation it can reach.
and that are the Ruppell's Giffrons with 37000 ft. 37000 is much farther away from 0 than e.g -3000. and so on.
Q2 wants us to sort the animals based on their reachable elevations.
by the way, the correct words would be "lowest to highest". as this is how elevation works on scales.
and remember, negative values get actually larger in their absolute values, when we make them smaller.
-2 is smaller than -1.
therefore, the animal that can get the lowest of all here is the sperm whale.
then comes the dolphin.
then the migration birds.
and then the Ruppell's Giffrons.
The Brown Spider Monkey can travel at the greatest distance from sea level compared to the other mentioned animals. The order of elevations from least to greatest would be Blue Whale, Mountain Lion, Mountain Goat, and Brown Spider Monkey.
The animal that can travel at the greatest distance from sea level is the Brown Spider Monkey. It is found in the tropical rainforests of South America and can live at elevations of up to 9,000 feet (2,700 meters) above sea level. The other animals mentioned, Mountain Goat, Blue Whale, and Mountain Lion, are all restricted to lower elevations.
In terms of elevations from least to greatest, the order would be:
Blue Whale - Lives in the ocean at sea level
Mountain Lion - Found in various habitats including mountains and plains
Mountain Goat - Lives in mountainous regions
Brown Spider Monkey - Found in the tropical rainforests at high elevations
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A square has a side length of x + 3. A regular octagon has a side length of 3x. If the polygons have the same perimeter, determine the value of x.
Answer:
x = ⅗ = 0.6
Step-by-step explanation:
A square has four equal sides.
If a square has a side length of \( x + 3 \), therefore,
Perimeter of the square = \( 4(x + 3) \)
\( = 4x + 12 \).
Also, a regular octagon has 8 equal sides.
If it has a side length of 3x, therefore:
Perimeter of the octagon = \( 8(3x) \)
= \( 24x \)
Given that the Perimeter of the rectangle and the octagon are the same, to find the value of x, set each perimeter equal to the other.
Thus:
\( 24x = 4x + 12 \)
Subtract 4x from each side
\( 24x - 4x = 12 \)
\( 20x = 12 \)
Divide both sides by 20
x = 12/20 = ⅗ = 0.6.
-234 = 7(-6 + 4n) + 4 evaluate each expression
Answer:
n=-7
Step-by-step explanation:
-234=-38+28
-28n=-38+28n
-28n=196
You went to the supermarket and bought 27 liters of milk and 45 loaves of bread for a total of $99. A month later, you bought 12 liters of milk and 12 loaves of bread at the same prices, for a total of $30. What is the price of a gallon of milk?
Answer:
\(the \: price \: of \: a \: gallon \: \: of \: milk \: \\ will \: cost \: 4.73 \: dolars\)
Step-by-step explanation:
\(if \: a \: gallon \: of \: milk = 3.78541 \: liters \\ 12 \: liters \: will \: cost \: 15 \: dolars \\ 3.78541 \: liters \: will \: cost : \\ \frac{3.78541 \: liters \times 15dolars}{12 \: liters} = 4.7317625 \: dolars\)
Consider the following vector field.
F(x, y, z) =
9ex sin(y), 2ey sin(z), 8ez
sin(x)
(a)
Find the curl of the vector field.
curl(F) =
(b)
Find the divergence of the vector field.
div(F) =
The curl of the vector field
curl(F) = -2ey cos(z)i + 8ez cos(x)j - 9ex cos(y)k
The divergence of the vector field
div(F) = 9e^x sin(y) + 2e^y sin(z) + 8e^z
To find the curl of the vector field F(x, y, z) = 9ex sin(y), 2ey sin(z), 8ez sin(x), we need to compute the determinant of the curl matrix.
(a) Curl of F:
The curl of a vector field F = P(x, y, z)i + Q(x, y, z)j + R(x, y, z)k is given by the following formula:
curl(F) = (∂R/∂y - ∂Q/∂z)i + (∂P/∂z - ∂R/∂x)j + (∂Q/∂x - ∂P/∂y)k
In this case, we have:
P(x, y, z) = 9ex sin(y)
Q(x, y, z) = 2ey sin(z)
R(x, y, z) = 8ez sin(x)
Taking the partial derivatives, we get:
∂P/∂y = 9ex cos(y)
∂Q/∂z = 2ey cos(z)
∂R/∂x = 8ez cos(x)
∂R/∂y = 0 (no y-dependence in R)
∂Q/∂x = 0 (no x-dependence in Q)
∂P/∂z = 0 (no z-dependence in P)
Substituting these values into the curl formula, we have:
curl(F) = (0 - 2ey cos(z))i + (8ez cos(x) - 0)j + (0 - 9ex cos(y))k
= -2ey cos(z)i + 8ez cos(x)j - 9ex cos(y)k
Therefore, the curl of the vector field F is given by:
curl(F) = -2ey cos(z)i + 8ez cos(x)j - 9ex cos(y)k
(b) Divergence of F:
The divergence of a vector field F = P(x, y, z)i + Q(x, y, z)j + R(x, y, z)k is given by the following formula:
div(F) = ∂P/∂x + ∂Q/∂y + ∂R/∂z
In this case, we have:
∂P/∂x = 9e^x sin(y)
∂Q/∂y = 2e^y sin(z)
∂R/∂z = 8e^z
Substituting these values into the divergence formula, we have:
div(F) = 9e^x sin(y) + 2e^y sin(z) + 8e^z
Therefore, the divergence of the vector field F is given by:
div(F) = 9e^x sin(y) + 2e^y sin(z) + 8e^z
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38 3 If p - q is true, thenq - p is false.
Answer:
yess it is by the benefactor
Step-by-step explanation:
Consider a rectangle with width of x units and an area of 10 square units. The length l of the rectangle can be modeled by the function l(x)=10/x. Suppose the width of the rectangle increases 1 unit while the area remains constant. Which graph models the length of the new rectangle
Answer: answer is C
Step-by-step explanation:
The question asks us to find the a graph which represents the width of the rectangle increasing by 1 unit while the area remains constant. The best graph to model this, would be answer choice C
Sakura solved a fraction division problem using the rule "multiply by the reciprocal." Look at her work. 7 ÷ 2/ 5 1/ 7 × 2/ 5 = 2/35 Did she solve the problem correctly?
Answer:
D. No. She multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor.
Step-by-step explanation:
A. Yes. She solved the problem correctly.
B. No. She multiplied the dividend by the divisor instead of finding the reciprocal.
C. No. She multiplied the denominators instead of finding a common denominator.
D. No. She multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor.
Her workings
7 ÷ 2/ 5
=1/ 7 × 2/ 5
= 2/35
Dividend=7
Divisor=2/5
The correct working
7 ÷ 2/ 5
=7 × 5/2
=35/2
Answer:
D
Step-by-step explanation:
I got an 100% on the quiz I took with this question :)
Hope I could help good luck on passing!!
what is 273.85 * 7? I really need this
A textbook store sold a combined total of 290 math and history textbooks in a week. The number of math textbooks sold was 64 more than the number of history textbooks sold. How many textbooks of each type were sold
Answer:
113
Step-by-step explanation:
290 - 64 = 226
226 ÷ 2 = 113
A number has 3 decimal places. It is 7.49 when rounded to the nearest hundredth. What could the number be?
Choose 4 correct answers.
a 7.483
b 7.485
C 7.489
d 7.491
e 7.492
f 7.495
Answer:
b. 7.485
c. 7.489
d. 7.491
e. 7.492
Step-by-step explanation:
For the first three options, you only round up if the number on the end is a 5 or higher. But for the last three options, the number in the hundreths place is a 9 already, so we're trying to round down the number on the end (4 or lower to round down).
solve the given initial-value problem. x(x + 1) dy dx + xy = 1, y(e) = 1
The solution to the initial-value problem x(x + 1) dy/dx + xy = 1, y(e) = 1 is y = ln(x + 1) / x.
To solve the given initial-value problem, we can use the method of integrating factors. Rearranging the equation, we have dy/dx + (xy / (x(x + 1))) = 1 / (x(x + 1)).
The integrating factor is given by μ(x) = exp ∫ (xy / (x(x + 1))) dx. Simplifying the integral, we have μ(x) = exp ∫ (1 / (x + 1)) dx = exp(ln(x + 1)) = x + 1.
Multiplying the entire equation by the integrating factor, we obtain (x + 1)dy/dx + xy = (x + 1) / (x(x + 1)).
The left side of the equation can be written as d((x + 1)y)/dx. Integrating both sides with respect to x, we have ∫ d((x + 1)y)/dx dx = ∫ (x + 1) / (x(x + 1)) dx.
Simplifying the right side of the equation, we get ∫ dx / x = ln|x| + C.
Dividing both sides by (x + 1), we have (x + 1)y = ln|x| + C.
Finally, solving for y, we find y = (ln|x| + C) / (x + 1). Using the initial condition y(e) = 1, we can substitute x = e and solve for C to obtain the specific solution y = ln(x + 1) / x.
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The football team has a total of jerseys 20 There are 14 medium-sized jerseys. What percent of the jerseys are medium-sized jerseys?
Answer:
I think it's 70%.
A multiple regression model using 200 data points (with three independent variables) has how many degrees of freedom for testing the statistical significance of individual slope coefficients?
A multiple regression model with 200 data points and three independent variables has 196 degrees of freedom for testing the statistical significance of individual slope coefficients. Here's an explanation in 150 words:
In a multiple regression model, the degrees of freedom for testing the statistical significance of individual slope coefficients are calculated as the total number of observations (n) minus the number of independent variables (k) and minus one for the intercept term. In this case, we have 200 data points (n) and three independent variables (k), so the calculation would be:
Degrees of freedom = n - (k + 1)
Substituting the values into the formula:
Degrees of freedom = 200 - (3 + 1) = 200 - 4 = 196
Therefore, this multiple regression model has 196 degrees of freedom for testing the statistical significance of individual slope coefficients.
This measure helps determine the uncertainty around the estimated coefficients and is used in hypothesis testing to determine whether there is a significant relationship between the independent variables and the dependent variable.
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f(x)=3x+2 what is f(-5) ?
Answer:
hope it helps you.......
How did billy go from five to ten apples
Answer:
5 apple magically appeared in his hands CLONED APPEARED BOUGHT FLEW INTO HIS HANDS.
Step-by-step explanation: