which expression represents the distance between point j and point k?
The calculated expression that represents the distance between point j and point k is |j - k|
Which expression represents the distance between point j and point k?From the question, we have the following parameters that can be used in our computation:
Point j and point k
The expression that represents the distance between point j and point k is the absolute difference of the points j and k
Using the above as a guide, we have the following:
Distance = |point j - point k|
So, we have
Distance = |j - k|
Hence, the expression that represents the distance between point j and point k is |j - k|
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Consider the line 3x+2y=-1.
Find the equation of the line that is perpendicular to this line and passes through the point (5, 3).
Find the equation of the line that is parallel to this line and passes through the point (5, 3).
Note that the ALEKS graphing calculator may be helpful in checking your answer.
Equation of perpendicular line:
Equation of parallel line:
0
find the point p that partitions the line segment AB given the ratio. A(3,5)B(4,3) with the ratio. 3:1
The coordinates of p which divides the line AB in ratio 3:1 is (3.75, 3.5).
What is section Formula?The section formula provides the coordinates of a point that, either internally or externally, divides the line connecting two locations in a ratio.
P ( x , y ) = ( c ⋅ m + a ⋅ n m + n , d ⋅ m + b ⋅ n m + n ) .
Ratio of line = 3:2
m and n represents the ratios 3:2
let the coordinates of p(x, y).
using Section formula
= [ (3(4) + 1(3) / (3+1), 3(3) + 1(5) / 3+ 1]
= (15/ 4, 14/4)
= (3.75, 3.5)
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The pair of points (5, 6) and (10, y) lie on a line with a slope of 4/5. Set up and solve for the missing y-value using the slope formula. Show all work.
Answer:
y = 10
Step-by-step explanation:
calculate the slope m of the 2 points using the slope formula and equate to the given slope.
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (5, 6 ) and (x₂, y₂ ) = (10, y )
m = \(\frac{y-6}{10-5}\) = \(\frac{y-6}{5}\)
equate this expression for m to the given m of \(\frac{4}{5}\)
\(\frac{y-6}{5}\) = \(\frac{4}{5}\) ( cross- multiply )
5(y - 6) = 20 ( divide both sides by 5 )
y - 6 = 4 ( add 6 to both sides )
y = 10
On a distant planet, a ball is thrown upwards from ground level , reaching a maximum height of 12m and hitting the ground again in eight seconds. Determine a quadratic equation in the form a * x ^ 2 + bx + + c =0 that could be used to calculate when the ball is a height of 3m. Do not solve the equation
Answer:
(-3 ÷ 4)x^2 + 6x
Step-by-step explanation:
Data provided in the question
Maximum height = 12m
Number of seconds = 8
Height = 3m
Based on the above information, the quadratic equation is as follows
Since it took 8 seconds for reaching the maximum height and then it returned to the ground level so here the highest point is done after 4 seconds also this graph represents the motion in parabola so the a should be negative
Now it is mentioned that
a × x ^ 2 + bx + c =0
We can assume that
x = 0
x = 8
As these {0.8} are intercepts of x
When x = 0, then it would be
a × 0 ^ 2 + b(0) + c = 0 .................... (i)
Therefore 0 = 0
Now x = 8, it would be
a × 8 ^ 2 + b(8) + c = 0
Therefore a(8)^2 + b(8) + c = 0 ..................(ii)
As we can see that in the first equation c should be zero
While the second equation would be
64a + 8b = 0
i.e.
8a = -b or a = -b ÷ 8
Now as per the quadratic function, it appears
(-b ÷8)x^2 + bx + 0
Now the parabola vertex is (4, 12)
Now put this in the place of a
(-b ÷ 8)(4)^2 + b(4) = 12
Now for solving this b, all terms should be multiplied by 8
That comes
-b(16) + 32b = 96
16b = 96
So, b = 6.
As a = -b ÷8
a = -6 ÷ 8
a = -3 ÷4
Now the equation is
= (-3 ÷ 4)x^2 + 6x
Hence, this is the equation
A scientist has two solutions what she has labeled solution a and solution b each contains salt she knows that solution a is 60% salt and solution b is 85% salt she wants to obtain 70 ounces of a mixture that is 80% salt how many ounces of each solution should she use
Solving a system of equations we can see that:
She needs to use 56 oz of the 85% solution.She needs to use 14 oz of the 60% solution.How many ounces of each solution should she use?We can use the variables:
x = mass of the 60% solution.
y = mass of the 85% solution.
We can write a system of equations.
x + y = 70
x*0.6 + y*0.85 = 70*0.8
We can isolate x on the first equation to get:
x = 70 - y
Replace that in the other one:
(70 - y)*0.6 + y*0.85 = 70*0.8
Now we can solve this for y.
y*0.25 = 70*0.8 - 70*0.6
y = 14/0.25 = 56
Then he needs to use 56 ounces of the 85% solution, and 14 ounces of the 60% solution.
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Geometry Question!! PLEASE HELp
The difference between the distance travelled by any point on the record and it's label is; 27.57cm.
What is the difference between the distance travelled in each case?According to the task content, it follows from observation that the quantity required is the difference between the circumference in each case and can be evaluated as follows;
Difference = π(17.78 - 9)
Difference = (22/7) × 8.78
Difference = 27.57cm.
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Patrick has an art supplies box with colored pencils and markers. The ratio of colored pencils to markers is 7:4. If Patrick has 63 colored pencils in the box, how many markers does he have.
The model for radioactive decay is y=y0e−kt
. A radioactive substance has a half-life of 1470
years. If 70
grams are present today, in how many years will 27
grams be present? (Round the value of k to 7 decimal places.) Round your answer to two decimal places, if necessary.
It will take approximately 2020.79 years for 70 grams of the radioactive element to remain 27.
How to find the number present in 27 yearsThe half-life of a radioactive element is the duration during which half of the initial quantity decays. Therefore, we can write:
\(t_{1/2} =0.693/k\)
k is the decay constant
\(t_{1/2}\) = half life
plugging in the values
1470 = 0.693 / k
k = 0.693 / 1470
k = 0.0004714
\(y = y_{0}e(-kt)\)
where
y0 is the first amount,
y is the remnant after time
t has passed
plugging in the values
\(27 = 70e^{-0.0004714t}\)
\(\frac{27}{70} = e^{-0.0004714t}\)
taking the natural logarithm of both sides we obtain:
\(In\frac{27}{70} = In (e^{-0.0004714t})\)
\(In\frac{27}{70} = -0.0004714t\)
Solving for t, yields:
\((In\frac{27}{70})/( -0.0004714) = t\)
Using a calculator, it can be determined that:
t = -0.9526 / -0.0004714
t ≈ 2020.79 years
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2.
3.5 in.
4 in.
6 in.
What is surface area
Given that three factors are given and the surface area is required, this means that we are dealing with a three-dimensional shape. Where the above is a rectangular prism, the surface area = 118 In².
What is the explanation for the above response?
Surface area is the measure of the total area that the surface of a three-dimensional object occupies.
To calculate the surface area of an object, you need to add up the areas of all its faces. The formula for finding the surface area of a rectangular prism, which has three pairs of congruent rectangular faces, is:
Surface area = 2(lw + lh + wh)
where l, w, and h are the length, width, and height of the rectangular prism, respectively.
So, if we have a rectangular prism with the following dimensions:
Length (l) = 3.5 inches
Width (w) = 4 inches
Height (h) = 6 inches
The surface area can be calculated as follows:
Surface area = 2(lw + lh + wh)
= 2(3.5 x 4 + 3.5 x 6 + 4 x 6)
= 2(14 + 21 + 24)
= 2(59)
= 118In²
Therefore, the surface area of this rectangular prism is 118 In².
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Full Question:
Although part of your question is missing, you may be referring to this full question:
Given a rectangular prism with the following dimensions:
3.5 in.
4 in.
6 in.
What is surface area?
14 adults and 20 children attended a piano recital. If two people are selected to receive door prizes at the recital, what is the probability that both will be children?
What is the m∠A in triangle ABC if m∠B = 35° and m∠C = 92°? *
Find the value of x.
x = ___
Three times the sum of a number and 7 is equivalent to 57.
Answer:
3(x+7)=57
Step-by-step explanation:
3 is being multiplied by "the sum of a number(or x) and 7". So, we write it as 3(x+7). That is equal to 57, so that makes the expression 3(x+7)=57.
-hope it helps
Equivalent expressions are expressions that have the same values.
The expression is \(3(x + 7) = 57\) and the number is 12
Represent the number with x.
So, the sum of a number (x) and 7 would be represented as: x + 7
Three times the sum would be represented as: 3(x + 7)
This expression is equivalent to 57.
So, we have:
\(3(x + 7) = 57\)
Divide both sides of the equation by 57
\(x + 7 = 19\)
Subtract 7 from both sides of the equation
\(x + 7 - 7 = 19 - 7\)
\(x = 12\)
Hence, the number is 12
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Pls help with the math!! It would mean a lot if you could print it out and do it! Tyyyyyy WILL MARK BRAINLIST!
Answer:
Step-by-step explanation:
Answer:
mark the answer below as brainliest x
Step-by-step explanation:
What is the period of y = sin(3x)?
sin 3 x = sin ( 3 x + 2 π ) = sin [ 3 ( x + 2 π/ 3 ) ] = sin 3 x
This means "after the arc rotating three time of ( x + ( 2 π /3 ) ) , sin 3x comes back to its initial value"
So, the period of sin 3x is 2 π /3 .
Maine has a cold climate in the winter. What is the probability of the temperature falling below 32 Fahrenheit in Maine during the month of January.
The probability is closer to one than zero.
Probability theory is used to analyze and predict the likelihood of events happening in various fields such as statistics, gambling, physics, finance, and more. It allows us to make informed decisions based on the likelihood of different outcomes. In probability theory, the total number of possible outcomes is important to determine the probability of a single event occurring. By comparing the favorable outcomes to the total outcomes, we can calculate the probability of an event happening.
Probability is a measure of the likelihood of an event to occur. Many events cannot be predicted with total certainty. We can predict only the chance of an event to occur i.e., how likely they are going to happen, using it. Probability can range from 0 to 1, where 0 means the event to be an impossible one and 1 indicates a certain event. Probability for Class 10 is an important topic for the students which explains all the basic concepts of this topic. The probability of all the events in a sample space adds up to 1.For example, when we toss a coin, either we get Head OR Tail, only two possible outcomes are possible (H, T). But when two coins are tossed then there will be four possible outcomes, i.e {(H, H), (H, T), (T, H), (T, T)}.
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A tree that is 40 feet tall casts a 30 foot shadow. At the same time another tree casts a 20 foot shadow. How tall is the second tree?
Answer:26 2/3 feet
Step-by-step explanation:40/30 = 4/3
(26 2/3) / 20= 4/3
4. Chelsea determined that the value of x in the triangle at the right was 5.
a. Find the value of each angle by substituting 5 for x.
b. Was Chelsea's solution, x = 5, correct? How do you know?
15x
x
11x
(8x+5)
Z
Step-by-step explanation:
a) 11*5=55
15*5=75
8*5+5=45
b) No, because (55+75+45=175°) and the perimeter of a triangle is 180°
perform the indicated operation 2 1/6+7 3/6
The solution to the indicated operation will be 9 and 2/3.
We have to find the sum of 2 and 1/6 and 7 and 3/6.
We can write the mixed fractions as:-
2 and 1/6 = 13/6
7 and 3/6 = 45/6
Adding the improper fractions, we get,
(13+45)/6 = 58/6 = 29/3
We can this improper fraction write it as :-
9 and 2/3
Mixed fraction
It is a form of a fraction which is defined as the ones having a fraction and a whole number.
2 and (1/7), where 2 is a whole number and 1/7 is a fraction.
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NO LINKS YOU SUSSY BAKA'S
Claire power walks 1/7 of a mile in 1/63 of an hour. Compute the unit rate in miles per hour.
2 hour and 52 minute
Step-by-step explanation:
Sana makatulong ito sa inyo
1,2,3,4,5 what is probability that an even number will be chosen?
Answer:
Step-by-step explanation:
step 1
100%/the total number = percent for one probability
100/5 = 20%
2 and 4 is even.
total even number * percent for one probability = total percent for even number
20% * 2 = 40%
therefore total even number is 40%
The probability is:
2/5Step-by-step explanation:
Remember the formula for probability:
\(\boxed{\!\!\boxed{\bold{Probability=\frac{Favourable~outcome}{total~outcomes}\quad}}\!\!}\)
In this case, the favourable outcome (an even number) is 2, because there are only 2 even numbers in the set.
As for the total outcomes, there are 5 of them, because we have 5 numbers total.
So the probability of choosing an even number is 2/5.
825 use each digit once. make the smallest 3digit number
Step-by-step explanation:
Given: To make smallest 3-digit number of 825.
To find: The smallest 3-digit number of 825.
Solution: We can make the smallest 3-digit number of 825 by separating the numbers and arranging it to ascending order. The given number is 825. ...
Final answer: The smallest 3-digit number of 825 is 258.
hope it helps
Answer:
258
Step-by-step explanation:
We are given 3 numbers:
8 2 5
And we are asked to find the smallest 3 digit number using those 3 digits above.
To make the smallest number, place the numbers in value from least to greatest:
2 5 8
This is your 3 digit number: 258.
Hope this helps! :)
A straight highway is 100 miles long, and each mile is marked by a milepost numbered from 0 to 100. A rest area is going to be built along the highway exactly 7 miles away from milepost 58. If m is the milepost number of the rest area, which of the following equations represents the possible locations for the rest area?
Answer:
Step-by-step explanation:
The milepost number of the rest area is 7 miles away from milepost 58, so it can be represented by the equation:
m = 58 + 7
This equation states that the milepost number of the rest area is equal to 58 plus 7, or 65. Therefore, the rest area can be located at milepost 65.
What is the base higher and area
Answer:
5
8
20
Step-by-step explanation:
Answer:
Base: 6 units. Height: 4 units. Area: 24 units.
Step-by-step explanation:
To find the base of the parallelogram, it is literally the bottom line of the parallelogram. In this case, it is the line below the x-axis that is also parallel to it. To find the length of the base line, just count the squares between both ends of the line. There are 6 squares, so the base is 6 units long. To find the height of the parallelogram, you count the squares (units) between the bottom and top lines of the parallelogram, both parallel to the x-axis. There are 4 squares between the lines, so the height of the parallelogram is 4 units. To find the area of a parallelogram, multiply the base by the height. 6 * 4 = 24, so the area of the parallelogram is 24 units.
7 wholes times 1 3/8
What is the slope-intercept equation for the line below? (4, 3); (0, 1) A . y = - 2x + 1 B . y = - 1/2 * x + 1 . y - 1/2 * x + 1 D. y = 2x + 1
y = 1/2x + 1 is the line's equation in slope-intercept form.
Slope-intercept form of a lineThe equation of a line in slope intercept form is expressed as y = mx + b where:
m is the slope
b is the y-intercept
Given the following coordinate points (4, 3) and (0, 1), the slope is calculated as:
Slope = 1-3/0-4
Slope = -2/-4
Slope = 1/2
For the y-intercept, it is the point where the x-coordinate is zero, hence the y-intercept if (0, 1)
Determine the required equation
y = mx + b
y = 1/2x + 1
Hence the equation of the line in slope-intercept form is y = 1/2x +1
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Cómo despejar an
Sn= (a1 + an)/2 n
Step-by-step explanation:
The formula:
�
�
=
�
2
(
�
1
+
�
�
)
S
n
=
2
n
(a
1
+a
n
)
is used to solve for the sum of the arithmetic sequence given the first term a₁, the number of terms n, and the last term in an.
Example:
3, 6, 9, 12, 15,...,123
The first term, a₁ = 3
The last term an = 123
Common difference, d = 3 (because the sequence are multiples of 3)
Number of terms, n= ?
Find the number of terms, n:
an = a₁ + (n-1) (d)
123 = 3 + (n-1) (3)
123 = 3 - 3 + 3n
123/3 = 3n/3
n = 41
To find the sum of the given sequence without adding 3 + 6 + 9, ... + 123, we use the formula:
S₄₁ = (41/2) (3 + 123)
S₄₁ = (41/2) (126)
S₄₁ = (41)(63)
S₄₁ = 2,583 ⇒ the sum of the given sequence
7= -10s-3 Solve the equation
Answer:
s = 1
Step-by-step explanation:
7 = -10s - 3
=> 7 + 3 = 10s
=> 10 = 10s
=> 10/10 = s
=> 1 = s
Answer: s= -1
Step-by-step explanation:
Find the missing coordinates.
Answer:
1) (2, 1)
2) (2, -2)
3) (-1, -1)
4) (-5, -5)
Answer:
1. Pairs A(2, 5), B(6, 5), and C(6, 1)
missing coordinate is (2,1)
2. Pairs A(2, 3), B(7, 3), and C(7, -2)
missing coordinate is (2,-2)
3. Pairs A(-5, -1), B(1, -1), and C(1, -5)
missing coordinate is (-5,-5)
4. Pairs A(-1, 4), B(7, 4), and C(7, -1)
missing coordinate is (-1,-1)
Hope this is correct!! Have a nice day!!<3