d=vt
d=84 km/hr x 2/6 hr
d = 28 km
GEOMETRY
this triangle has a depression of 10 degrees and it’s 1150 feet long. i’m supposed to find the height but i don’t know how !? pls help
I think this is it if not I'm sorry
78264 in
please help brainliest to correct answer
Answer:
A, n = (8 - 7p)/m.
Step-by-step explanation:
mn + 7p = 8
mn = 8 - 7p
n = (8 - 7p)/m.
PLS HELP
Surface area of a cuboid is 158 cm²
Height 5 cm
Width is 3 cm
What is the length?
Answer:
10.5
Step-by-step explanation:
v=158
l×w×h =158
l×5×3=158
l×15=158
L =158÷15=10.5
evaluate the integral by reversing the order of integration. 4 0 12 5ex2 dx dy 3y
To reverse the order of integration, we need to rewrite the limits of integration in terms of the other variable.
The value of the given integral by reversing the order of integration is (5/12)(\(e^{24}\) - 1).
The given integral is ∫∫ \(5e^{(2x)}\) dx dy, where the limits of x are from 0 to 4 and the limits of y are from 0 to 3y.
To integrate with respect to y first, we need to express the limits of y in terms of x.
From the limits of y given, we have 0 ≤ y ≤ 3y, which simplifies to 0 ≤ y.
Now we need to find the upper limit of y. To do this, we set the expression for the upper limit equal to the constant 12, which is the upper limit of x.
So we have 3y = 12, which gives y = 4.
Thus, the limits of integration become ∫∫ \(5e^{(2x)}\) dy dx, where the limits of y are from 0 to 4 and the limits of x are from 0 to 3y.
Now we can integrate with respect to y:
∫∫ \(5e^{(2x)}\) dy dx = ∫ 0^4 ∫ 0^(3y) \(\int\limits^4_0 \int\limits^{(3y)}_0 5e^{(2x)} dx dy\)
= \(\int\limits^4_0 [5/2 e^{(2x)}]_0^{(3y)} dy\)
= \(\int\limits^4_0 [5/2 (e^{(6y)} - 1)] dy\)
= \([5/12 (e^{(6y)} - 1)]_0^4\)
= \((5/12)(e^{24} - 1)\)
Note that the order of integration can be reversed if the integrand is continuous on a rectangular region that contains the original region of integration.
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Could someone please help me with this?
A regular child admission ticket to the San Diego Zoo is $52. If you have a special pass, you can get a 20% discount on the original ticket price. What is the discounted amount of the ticket when you use the discount?
simplify
75 ÷ 15 × (-6+17-8) x4
Answer:
60
Step-by-step explanation:
-6 + 17 - 8 = 3Plug 3 in: 75 ÷ 15 × (3) × 475 ÷ 15 = 5Plug 5 in: 5 × 3 × 45 × 3 × 4 = 60I hope this helps!
The Mackenzie family celebrates with movie night every Saturday night. Their favorite snack is popcorn mixed with M&Ms, and they think the perfect mixture is ounces of popcorn and ounces of M&Ms.
Answer:
more info?
Step-by-step explanation:
answer this please.
Answer:
2. absolute value of p - q
Explanation:
Because when you calculate distance, you always use absolute value.
Can I get a thx and brainliest?
How do I determine maximal velocity from the acceleration vs time graph?
To determine the maximal velocity from an acceleration vs. time graph, you need to follow these steps:
Identify the time interval during which the acceleration remains constant or nearly constant. This interval can be identified as a straight line on the graph.
Calculate the acceleration value during this interval by finding the slope of the line. The slope is the change in acceleration divided by the change in time.
Use the acceleration value and the time interval to calculate the change in velocity during this interval using the formula:
Δv = aΔt
Where Δv is the change in velocity, a is the acceleration, and Δt is the time interval.
Add the change in velocity to the initial velocity at the start of the time interval to obtain the maximal velocity. If the initial velocity was zero, then the maximal velocity will be equal to the change in velocity.
vmax = vi + Δv
Where vmax is the maximal velocity and vi is the initial velocity.
Note that this method assumes that the acceleration is constant or nearly constant during the time interval of interest. If the acceleration changes significantly during this time interval, you will need to break it down into smaller intervals and repeat the above steps for each interval to determine the maximal velocity.
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3/7×1/3×7/8. Simplify this, if you please.
Answer:
0.125
Step-by-step explanation:
Renji owes his parents $204. He pays them back $8.50 every week. How many payments will it take until Renji has paid his parents back fully?
Answer:
24 payments.
Step-by-step explanation:
$204 divided by $8.50 = 24
Can you help me please??
Answer:
y = \(\frac{4}{5}x+\frac{54}{5}\)
Step-by-step explanation:
Equation of a line has been given as,
\(y=\frac{4}{5}x+\frac{3}{5}\)
Here, slope of the line = \(\frac{4}{5}\)
y-intercept = \(\frac{3}{5}\)
"If the two lines are parallel, there slopes will be equal"
By this property slope of the parallel line to the given line will be equal.
Therefore, slope 'm' = \(\frac{4}{5}\)
Since, slope intercept form of a line is,
y = mx + b
Therefore, equation of the parallel line will be,
y = \(\frac{4}{5}x+b\)
Since, this line passes through a point (-6, 6),
6 = \(\frac{4}{5}(-6)+b\)
6 = \(-\frac{24}{5}+b\)
b = \(6+\frac{24}{5}\)
b = \(\frac{30+24}{5}\)
b = \(\frac{54}{5}\)
Equation of the parallel line will be,
y = \(\frac{4}{5}x+\frac{54}{5}\)
. if an m-by-n matrix a multiplies an n-dimensional vector x, how many separate multiplications are involved? what if a multiplies an n-by-p matrix b?
If a multiplies an n x p matrix b then the total number of multiplications involved is m x p. And is given by Dimensional vector.
For explanation, There are two separate cases to consider when multiplying an m-by-n matrix and an n-dimensional vector, or an m-by-n matrix and an n-by-p matrix.
When an m-by-n matrix, A, multiplies an n-dimensional vector, x, the number of separate multiplications involved is m. This is because in order to compute the dot product of A and x, each row of A needs to be multiplied by the vector x, resulting in m separate multiplications.
On the other hand, when A multiplies an n-by-p matrix, B, the number of separate multiplications involved is m x p. This is because in order to multiply A and B, each row of A must be multiplied by each column of B, resulting in m x p separate multiplications.
Therefore, the number of separate multiplications involved when multiplying an m-by-n matrix and an n-dimensional vector is m, and the number of separate multiplications involved when multiplying an m x n matrix and an n x p matrix is m x p.
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3. The line segment drawn from a vertex of the triangle to the mid-point of the opposite
side is called
a) altitude
b) median
c) centroid
please help me!?))),)$&$(
Answer:
Put a point at -5 on the Y axis.
Then move up 6 (still on the Y axis)
Then move to the right 1 (this should be the point 1,1 on the graph)
Draw a line through the points
Shade to the right of the line you drew
Complete these divisions with money. How will you show any remainders? Why?
$447/5
$664/4
$447/10
Answer Now!!
Answer:
$447/5 = $88.4
$664/4 = $166
$447/10 = $44.7
For the remainders, it would be,
For $447/5 = 4/10 = 2/5
For $664/4 = 0
For $447/10 = 7/10
Step-by-step explanation:
how do you write 41/20 as a percentage?
Answer:
205%
Step-by-step explanation:
Percent means out of 100, so we want to get the denominator as 100
41/20 * 5/5
205/100
The percent is 205
205%
Simplify (Use sums and differences of angles formulas) sin (π/2 -x) + sin(π - x) + sin(3π/2 - x) + sin(2π-x)
The expression of sine function sin(π/2 - x) + sin(π - x) + sin(3π/2 - x) + sin(2π - x) simplifies to -cos(x).
To simplify the expression using the sums and differences of angles formulas, we can break down each term and apply the formulas. Here's the step-by-step process:
1. Use the sums and differences of angles formulas:
The formulas we will use are:
- sin(A + B) = sin(A)cos(B) + cos(A)sin(B)
- sin(A - B) = sin(A)cos(B) - cos(A)sin(B)
2. Apply the formulas to each term:
a) sin(π/2 - x):
Using the formula sin(A - B), we have:
sin(π/2 - x) = sin(π/2)cos(x) - cos(π/2)sin(x) = 1 * cos(x) - 0 * sin(x) = cos(x)
b) sin(π - x):
Using the formula sin(A - B), we have:
sin(π - x) = sin(π)cos(x) - cos(π)sin(x) = 0 * cos(x) - (-1) * sin(x) = sin(x)
c) sin(3π/2 - x):
Using the formula sin(A - B), we have:
sin(3π/2 - x) = sin(3π/2)cos(x) - cos(3π/2)sin(x) = (-1) * cos(x) - 0 * sin(x) = -cos(x)
d) sin(2π - x):
Using the formula sin(A - B), we have:
sin(2π - x) = sin(2π)cos(x) - cos(2π)sin(x) = 0 * cos(x) - 1 * sin(x) = -sin(x)
3. Combine the terms:
sin(π/2 - x) + sin(π - x) + sin(3π/2 - x) + sin(2π - x) simplifies to:
cos(x) + sin(x) - cos(x) - sin(x)
4. Simplify the expression:
The cos(x) and -cos(x) terms cancel each other out, and the sin(x) and -sin(x) terms also cancel each other out. Therefore, we are left with:
-sin(x)
So, the simplified expression is -cos(x).
In the given expression, the angles π/2, π, 3π/2, and 2π correspond to the quadrants where sin(x) and cos(x) have specific values. The simplification relies on the properties and relationships between trigonometric functions in different quadrants.
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ah help!!!
i’ll give a brainiest to the correct answer:D
What is the solution of the system of equations below?
x + 3y = 7
2x - y = 7
Answer:
y = 1
x = 4
Step-by-step explanation:
x + 3y = 7 → ( 1 )
2x - y = 7 → ( 2 )
First, let us make x the subject in equation ( 1 ).
x = 7 - 3y → ( 3 )
Let us find the value of y.
For that let us take equation (1) & replace x with ( 7 - 3y ).
2x - y = 7
2 ( 7 - 3y ) - y = 7
Solve the brackets.
14 - 6y - y = 7
Combine like terms.
14 - 7y = 7
Subtract 14 from both sides.
-7y = 7 - 14
-7y = -7
Divide both sides by -7.
y = 1
Let us find value of x
For that let us take equation (3) & replace y with 1.
x = 7 - 3y
x = 7 - 3 × 1
x = 7 - 3
x = 4
Find the value of X
2x
3x+10
Answer:
-10 = x
Step-by-step explanation:
2x = 3x + 10 Is this what you meant to write? Subtract 2x from both sides
0 = x + 10 Subtract 10 from both sides
-10 = x
or are you combining like terms?
2x + 3x + 10
5x + 10
Roads in Manhattan are called streets and avenues.
Streets run from east to west and avenues run from
north to south.
The distance between streets is around 80 m and the
distance between avenues is around 260 m, as shown
below.
Point X is at the centre of the junction of 15th Street
and 7th Avenue.
Point Y is at the centre of the junction of 21st Street and
4th Avenue.
Using the information above,
a) calculate the straight-line distance between point X
and point Y.
b) calculate the shortest distance along the roads to get
from point X to point Y.
Give your answers to the nearest metre.
The straight-line distance and the shortest distance between point X and point Y will be 2,260 m and 2,361.78, respectively.
What is a Pythagoras theorem?The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.
The Pythagoras theorem formula is given as
H² = P² + B²
The distance between streets is around 80 m and the distance between avenues is around 260 m, as shown below.
The straight-line distance between point X and point Y will be given as,
⇒ (24 - 15) x 260 + (9 - 5) x 80
⇒ 2,340 + 320
⇒ 2,260 m
The shortest distance along the roads to get from point X to point Y will be given as,
D² = (2,340)² + (320)²
D² = 5,475,600 + 102,400
D² = 5,578,000
D = 2,361.78 meters
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The complete question is attached below.
Are the expressions -0.5(3x + 5) and
-1.5x + 2.5 equivalent? Explain why or why not.
Answer:
No, because the first equation equals -1.5x + 2.5 when simplified, but when the second equation is simplified it equals 1
f the following, which is the smallest sample size that will result in a margin of error of no more than 5 percentage points? responses 73 73 97 97 271 271 385 385 1,537 1,537 skip to navigation
The smallest sample size that will result in a margin of error of no more than 5% for a 95% confidence interval is given as follows:
385.
What is a confidence interval of proportions?A confidence interval of proportions has the bounds given by the rule presented as follows:
\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)
In which the variables used to calculated these bounds are listed as follows:
\(\pi\) is the sample proportion, which is also the estimate of the parameter.z is the critical value.n is the sample size.The margin of error is modeled as follows:
\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)
The confidence level is of 95%, hence the critical value z is the value of Z that has a p-value of \(\frac{1+0.95}{2} = 0.975\), so the critical value is z = 1.96.
We have no estimate, hence we consider that:
\(\pi = 0.5\)
The minimum sample size is obtained as n when M = 0.05, hence:
\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)
\(0.05 = 1.96\sqrt{\frac{0.5(0.5)}{n}}\)
\(0.05\sqrt{n} = 1.96 \times 0.5\)
\(\sqrt{n} = 1.96 \times 10\) (0.5/0.05 = 10).
\((\sqrt{n})^2 = (1.96 \times 10)^2\)
n = 384.16
Hence rounded to 385, as a sample size of 384 would have a margin of error slightly above 0.05.
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Which type of error explains the variability in the results between groups: mistakes, random, or systemic
The type of error that explains the variability in the results between groups is "random error."Explanation:Random error is the variability between the groups' results due to the imprecision of the measuring instrument or technique.
It is caused by minor differences in the experimental conditions that are unpredictable and can not be controlled or accounted for in the experiment. Random error can lead to imprecise results that fluctuate from the main answer, which means that it is not biased towards one particular direction.The other type of error that is commonly known is "systematic error" which is characterized by consistent errors that occur in a specific direction due to the method or instrument used.
Systematic error is due to the inaccuracy of the measuring instrument or incorrect experimental design, and it can affect the accuracy of the main answer. Mistakes or human errors, on the other hand, are due to human error, such as incorrect calculations or transcriptions, and are not part of the sources of errors.
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suppose that a classroom has 4 light bulbs. the probability that each individual light bulb works is 0.25. suppose that each light bulb works independently of the other light bulbs. what is the probability that all four of the light bulbs work?
The Probability that all four of the light bulbs work is 0.004 approx.
The probability that all four light bulbs work can be calculated by taking the product of the probability that each individual light bulb works. If each light bulb works independently of the other light bulbs, then the probability that all four light bulbs work is:
P(all 4 bulbs) = P(bulb 1) * P(bulb 2) * P(bulb 3) * P(bulb 4)
P(all 4 bulbs) = 0.25 * 0.25 * 0.25 * 0.25
P(all 4 bulbs) = 0.25^4
P(all 4 bulbs) = 0.00390625
So, the probability that all four light bulbs work is 0.00390625 or approximately 0.004.
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Can someone help me
Answer:
Question 1: each corresponding term in #2 is the term in #1 * 3.Question 2: answer DStep-by-step explanation:
Question 1: the defined rules dictates that series 1 is multiples of 3 and series 2 is multiples of 9, making the ratio always 3.
Question 2: You must pay attention to the values of the coins based on how many going from 0 to 3 so the nickels are 0, 5, 10, 15 and the values of dimes is 0, 10, 20, 10. Looking only at the values one could easily jump to answer A because the values initially double for each, but breaks down at 3 coins.
Kim went to the store and bought 4 items: $32.45, $46.78, $12.91, and $52.38. How much did Kim spend if the sales tax is 8%?
To find out how much Kim spent in total with the 8% sales tax included, we first need to add up the cost of all 4 items: $32.45 + $46.78 + $12.91 + $52.38 = $144.52
Next, we'll multiply that total cost by the sales tax rate as a decimal (8% expressed as 0.08) to find out how much tax Kim had to pay: $144.52 x 0.08 = $11.56
Finally, we'll add the total cost of the items and the tax to find out how much Kim spent in total: $144.52 + $11.56 = $156.08
Write a function rule that represents the sentence.
y is 4 less than the product of 7 and x.
On a map of Arizona 2 inches represents 54 miles. The map distance from Yuma to Sentinel is 3 inches. What is the actual distance in miles between the cities?
Answer: 81 miles
Step-by-step explanation:
if 2 inches = 54miles then 1 inch is 27 miles because 54/2=27
so 3 inches means 3(27)=81 miles from yuma to sentinel