Answers in bold:
Which line is steeper? Line B) y = -6x+1
Are the lines parallel, perpendicular, or neither? Neither
====================================================
Explanation:
Let's solve line A for y
-6x+2y=4
2y = 6x+4
y = 6x/2 + 4/2
y = 3x+2
This equation is in slope-intercept form y = mx+b
m = 3 = slopeb = 2 = y interceptThe slope of line A is 3.
Compared to the equation for line B, y = -6x+1, it has a slope of -6 which makes the second line to be steeper. The further the slope value is away from 0, the more steep the line gets.
-----------------------
Since the slope of line A (3) is not equal to the slope of line B (-6), this means the lines aren't parallel.
The lines aren't perpendicular either because the two slopes do not multiply to -1. In other words, the slopes aren't negative reciprocals of one another.
Therefore, we go with "neither".
9. Find BD if AABC~AXYZ
A
BD and
and
B
12
A
D
C X
YW
are medians.
We have found that: AB = (BD/2) * (XZ/AY) and we can solve for BD:
BD = 2 * AB * AY / XZ
What is triangle?
A triangle is a three-sided polygon with three angles. It is a fundamental geometric shape and is often used in geometry and trigonometry.
Since BD is a median of triangle ABC, it divides side AC into two equal parts. Let's label the midpoint of AC as M. Similarly, YW is a median of triangle XYZ and it divides side XZ into two equal parts, with the midpoint labeled as N.
Since AABC~AXYZ, we know that the corresponding sides are proportional. Thus,
AB/AX = AC/AY = BC/BZ
Since AB = BC (given that B is a vertex of both triangles), we have:
AB/AX = AC/AY
We can rewrite this equation as:
AB/AC = AX/AY ----(1)
Since BD is a median of triangle ABC, we have:
BD = 1/2 AC ----(2)
Similarly, since YW is a median of triangle XYZ, we have:
YW = 1/2 XZ ----(3)
From equation (1), we have:
AB/AC = AX/AY
Multiplying both sides by AC, we get:
AB = AX * (AC/AY)
Now, using equation (2), we can substitute AC/2 for BD:
AB = AX * BD/AY
Finally, using equation (3), we can substitute XZ/2 for YW:
AB = (BD/2) * (XZ/AY)
Therefore, we have found that:
AB = (BD/2) * (XZ/AY)
Hence, we can solve for BD:
BD = 2 * AB * AY / XZ
Note that we need to know the actual values of AB, AY, and XZ to find BD.
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I’ll give you so many point SOOOO MANY POINTS HELP IM GONNA FAIL MY CLASS
Answer:
502
Step-by-step explanation:
4 times 125.50 equals 502
G is the centroid of triangle ABC.
What is the value of x?
22
What is the length of segment DG?
units
What is the length of segment AG?
units
What is the length of segment AD?
unit
Applying the centroid ratio theorem, we have:
x = 37
DG = 22
AG = 44
AD = 66.
What is the Centroid Ratio Theorem?According to the centroid ratio theorem, we have:
AG = 2/3(AD)
AG = x + 7
DG = x - 15
AD = x + 7 + x - 15 = 2x - 8
Plug in the values into the equation
x + 7 = 2/3(2x - 8)
3(x + 7) = 2(2x - 8)
3x + 21 = 4x - 16
3x - 4x = -21 - 16
-x = -37
x = 37
DG = x - 15 = 37 - 15 = 22
AG = x + 7 = 37 + 7 = 44
AD = 22 + 44 = 66
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Answer:
The value of x is 37
The length of segment DG is 22 units
The length of segment AG is 44 units
The length of segment AD is 66 units
Select the correct answer.
It costs $480.00 to rent an apartment on the Gold Coast for a weekend. Last year it cost $400.00.
What method below shows how you would calculate the % increase?
The method is: Find the increase and find the ratio of the increase and the old price.
The percentage increase is 20%
What method below shows how you would calculate the percentage increase?A percentage is defined as the ratio that can be expressed as a fraction of 100.
The method below shows how you would calculate the % increase.
First step: Find the increase:
increase = 480 - 400 = $80
Second step: Find the ratio of the increase and the old price and multiply by 100 to express in percentage:
80/400 * 100 = 20%
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Mario's net worth is $8,250.63. His liabilities are $3,222.35. What is the value of his assets?
and another question
Lizzie's net worth is $3,285.22. Her assets are $6,255.85. What is the dollar amount of her liabilities?
Answer:
.
Step-by-step explanation:
Answer:
1) $11472.98
2) $2970.63
Step-by-step explanation:
Find all possible values of x.
Using the secant-secant theorem, the possible values of x are x = 6 and x = -10. -10 cannot be a value of x because length cannot be negative.
Secant-secant theorem: Calculating the value of of xFrom the question, we are to determine the value of x in the given diagram.
The Secant-secant theorem states that
"Given two secant segments which share an endpoint outside of the circle, the product of one secant segment and its external segment is equal to the product of the other segment and its external segment"
Thus,
We can write that
5 × (5 + 7) = x × (x + 4)
Simplifying
5 × 12 = x² + 4x
60 = x² + 4x
x² + 4x - 60 = 0
Solve the quadratic equation
x² + 4x - 60 = 0
x² + 10x - 6x - 60 = 0
x(x + 10) - 6(x + 10) = 0
(x - 6)(x + 10) = 0
x - 6 = 0 or x + 10 = 0
x = 6 or x = -10
Since x cannot be negative,
x = 6
Hence, the value of x is 6
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Which of the following are equivalent expressions-240 - (+370)370240370240
Question: Which of the following are equivalent expressions-240 - (+370).
Solution:
Notice that
-240 -(+370) = -240 - 370 ( that is because - times + is)
then, we have:
240 -(+370) = -240 - 370 = -610.
someone please help!!
Answer:
Option 2: (1,0) is the correct answer
Step-by-step explanation:
Given inequality is:
y>-5x+3
In order to find which point is solution to the given inequality we'll put the point one by one in the inequality. If the point satisfies the inequality, then the point is the solution of the inequality.
Putting (0,3) in inequality
\(3 > -5(0)+3\\3>0+3\\3>3\)
Putting (1,0) in inequality
\(0>-5(1)+3\\0>-5+3\\0>-2\)
Putting (-3,1) in inequality
\(1 > -5(-3)+1\\1> 15+1\\1>16\)
Putting (-1,-2) in inequality
\(-2>-5(-1)+3\\-2>5+3\\-2>8\)
The inequality is true for (1,0)
Hence,
Option 2: (1,0) is the correct answer
at a party 136 handshakes took place. each person shook hands exactly once with each of the others present. how many people were at the party?
9514 1404 393
Answer:
17
Step-by-step explanation:
The number of handshakes among n people is n(n -1)/2. Then ...
n(n -1)/2 = 136
n(n -1) = 272 = 17×16*
n = 17
There were 17 people at the party.
_____
* This factoring can be facilitated by recognition that √272 ≈ 16.5, the number midway between the consecutive factors.
Select the correct answer.
Which graph represents the solutions to this equation?
x2 + 8x = -20
(as a graph pls!)
Answer:
Step-by-step explanation:
√38 I’m not sure how to solve these kinds of equations
Answer:
√38
Step-by-step explanation:
√38
step 1: Check which squared numbers can be multiplied by another number to get 38.
Start with these numbers: 4, 9, 16, and 25
Step 2: Testing out the numbers
√25 × __ = 25 can't be divided by 38
√16 × ___ = 16 can't be divided by 38
√9 × ____ = 9 can't be divided by 38
√4 × ____= 4 can't be divided by 38
Step 3: Answer
After trying the square root numbers that could possibly work with √38 none work; which means √38 can't be simplified. So the answer is √38
I hope this helps!
A student makes a number of measurements of electrical current in the circuit. The average of the measurements is 12.33 mA. The standard deviation of the sample is 0.14 mA. How should this measurement be written to the correct number of significant figures with error range to show a 95% confidence
Answer:
The way to represent this it is
\( 12.33 - \frac{0.27}{\sqrt{n} } < \mu < 12.33 + \frac{0.27}{\sqrt{n} } \)
Step-by-step explanation:
From the question we are told that
The sample mean is
The standard deviation is
Given that the confidence level is 95% then the level of significance is mathematically represented as
\(\alpha = (100-95)\)
\(\alpha = 0.05\)
The critical value for \(\frac{\alpha }{2}\) is obtained from the normal distribution table that value is
\(Z_{\frac{\alpha }{2} } = 1.96\)
Now the margin of error is mathematically represented as
\(E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }\)
\(E = \frac{0.27}{\sqrt{n} }\)
Now the error range to show a 95% confidence is mathematically represented as
\(\= x - E < \mu < \= x + E\)
\( 12.33 - \frac{0.27}{\sqrt{n} } < \mu < 12.33 + \frac{0.27}{\sqrt{n} } \)
Here notice that the significant figure is keep to three to match the significant figure of the given values
David is starting a collection of baseball cards. He currently has 16 cards in his collection. He hopes to buy 5 more each month. Write and solve an inequality that can be used to find the least number of weeks it will take him to collect 50 cards.
Answer:
69
Step-by-step explanation:
Given m∠ABC=37°m∠ABC=37°and m∠CBD=165°m∠CBD=165°. According to the Angle Addition Postulate, what is the measure of ∠ABD∠ABD, that contains −−→BCBC→?
According to the Angle Addition Postulate, the measure of m∠ABD = 202°.
What is an angle addition postulate?According to the Angle Addition Postulate, an angle's measure is equal to the sum of the measures of any two adjacent angles. The Angle Addition Postulate can be used to determine the measurement of a missing angle or to determine the angle produced by two or more other angles.
Given:
The angle measures:
m∠ABC=37°,
and m∠CBD= 165°.
So, according to the angle addition postulate;
m∠ABD = m∠ABC + m∠CBD
Substituting the values,
m∠ABD = 37° + 165°
m∠ABD = 202°
Therefore, the angle measure of m∠ABD = 202°.
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If you buy 10 pounds of lettuce for $70, what is the rate which one pound of lettuce costs?
Answer:
$7/lb
Step-by-step explanation:
$70 / 10 lb = $7/lb
Answer:
$7 per pound of letuce
Step-by-step explanation:
We know
10 pounds = $70
1 pounds = ?
We cross multiply and get:
$7 per pound of letuce
So, the answer is $7 per pound of letuce
Consider a tree T with n vertices, where n is an odd integer greater than or equal to 3. Let v be a vertex of T. Prove that there exists a vertex u in T such that the distance between u and v is at most (n-1)/2
There must exist a vertex u in T such that the distance between u and v is at most (n-1)/2.
To prove the existence of a vertex u in tree T such that the distance between u and v is at most (n-1)/2, we can employ a contradiction argument. Assume that such a vertex u does not exist.
Since the number of vertices in T is odd, there must be at least one path from v to another vertex w such that the distance between v and w is greater than (n-1)/2.
Denote this path as P. Let x be the vertex on path P that is closest to v.
By assumption, the distance from x to v is greater than (n-1)/2. However, the remaining vertices on path P, excluding x, must have distances at least (n+1)/2 from v.
Therefore, the total number of vertices in T would be at least n + (n+1)/2 > n, which is a contradiction.
Hence, there must exist a vertex u in T such that the distance between u and v is at most (n-1)/2.
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6. Job A: $53,210 per yearJob B: $4,500 per month
a. Which job pays more?
b. How much more?
A) A year is 12 months. Multiply monthly pay by 12 for yearly amount:
4500 x 12 = $54,000 per year.
B) the monthly rate of 4,500 per month pays more by: 54,000 - 53,210 = $790 per year
Ben left a 20% tip for his waiter. If he left $4.20, how much did his bill come to before the tip?
Answer:
21
Step-by-step explanation:
Which kind of graph is shown here?А.
demand graph
B. product graph
C. supply graph
One of the following is a regression example for which Entity and Time Fixed Effects could be used: ________
a. minimum wages on teenage employment using annual data from the 48 contiguous states in 2006.
b. various performance statistics on the (log of) salaries of baseball pitchers in the American League and the National League in 2005 and 2006.
c. inflation and inflationary expectations on unemployment rates in the United States, using quarterly data from 1960-2006.
d. drinking alcohol on the GPA of 150 students at your university, controlling for incoming SAT scores.
Answer:
b
Step-by-step explanation:
The regression which comprises of both entity & time effect can be expressed as;
\(Y_{it} = B_1X_{it} + \alpha_i + \lambda_i + \mu_{it}\)
Where;
take charge of the state-explicit qualities that don't change over the long run
controls the variables that differ after some time yet not across substances,
\(u_{it}\) controls state-specific qualities which shift after some time.
Thus, from the options given above:
The first option lacks or does not involve the time effect as we are only looking for a particular year.
The second option comprises only 2 years of data which implies that we have a time effect involved. In addition to that, there exist a few variables in executing measurements that join fixed effects. In this case, we can utilize regression with time and fixed effect.
(c) The information here is quarterly over an extended period of time. Hence, it would prefer a period arrangement information than a fixed and time impact information. Thus, this is incorrect.
(d) Since no time variable is associated, we reject the option.
what property is it ?
Answer:
what do you mean?
Step-by-step explanation:
Can someone answer this please
The notation "m^2" is a shorthand way of saying "square meters".
Chances are you'll simply type in the number and leave out the units, as that's already taken care of.
==========================================================
Work Shown:
area = base*height
area = 8*3
area = 24 square meters
---------
Explanation:
We simply multiply the base 8 and height 3 and that's our answer. It's not a trick question even if it might seem like it.
The side that's 7 meters long is never used. The base and height are always perpendicular to one another, which means that they form a right angle (aka 90 degree angle).
The area formula of a parallelogram and rectangle are the same. We can think of a non-rectangular parallelogram as a slanted rectangle in a sense. Imagine you had stacks of blocks to form a rectangle. Now imagine nudging that stack slightly to one side. The blocks themselves don't change, so the area of one wall doesn't change. All that's changed is the shape.
How to write Eight more than four times a number is -12 as an equation
Step-by-step explanation:
4x +8=-12 is the answer
yooo smart score is 67 and I need at least 70 so can someone help me plz
Answer:
R=50
x=65
x-15=50+2x=180
Answer: The answer is: " m∡R = 20° " .
__________________________
Step-by-step explanation:
__________________________
Note that ∡R and ∡Q are "supplementary angles".
In these particular case:
" m∠R + m∠Q = 180 " ;
We are given (in the picture):
_____________________________
" m∠R = (x - 15) " :
and " m∠Q = 2x " ;
_____________________________
So we plug in these values:
_____________________________
→ m∠R + m∠Q = 180 ;
→ (x - 15) + 2x = 180 ;
→ x - 15 + 2x = 180 ;
→ combine the "like terms" on the "left-hand side of the equation" :
x + 2x = 1x + 2x = 3x ;
Rewrite as: 3x - 15 = 180 ;
Now add "15" to each side of the equation:
3x - 15 + 15 = 180 + 15 ;
to get:
3x = 195 ;
Now, divide each side of the equation by "3" ; to isolate "x" on the left-hand side of the equation; and to solve for " x" ;
3x / 3 = 195/3 ;
to get: x = 65 ;
Now, we are to solve for: m∡R ; which is: " (x - 15) " ;
So we substitute "65" ; for "x" ;
→ m∡R = x - 15 = 65 - 15 = 50 ;
The answer is: " m∡R = 50.°
__________________________________
Note: Alternate method:
Above; when we have:
"3x - 15 = 180 " ;
we can divide each side of the equation by "3";
to get:
1x - 5 = 60 ;
→ x - 5 = 60 ;
Add "5" to each side of the equation:
x - 5 + 5 = 60 ;
→ x = 60 ;
and then continue acordingly.
__________________________
Best wishes!
solve the system of equations
y=x-2
x+y=10
Answer:
Step-by-step explanation:
x + x - 2 = 10
2x - 2 = 10
2x = 12
x = 6
y = 6 -2
y = 4
(6,4)
Jessica needs to know how much water her new fish tank can hold:
A rectangular prism with a length of 8 inches, a width of 4 inches, and a height of 9 inches.
Determine the total volume of the fish tank.
The fish tank has a total volume of 288 inch³. As a result, Jessica's new fish tank has a capacity of 288 inch³ for water.
The volume of a rectangular prism can be calculated using the formula:
V = l x b x h..........(i)
where,
V ⇒ Volume
l ⇒ length
b ⇒ width
h ⇒ height
From the question, we are given the values,
l = 8 inches
b = 4 inches
h = 9 inches
Putting these values in equation (i), we get,
V = 8 x 4 x 9
⇒ V = 288 in³
Therefore, the fish tank has a total volume of 288 inch³. As a result, Jessica's new fish tank has a capacity of 288 inch³ for water.
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The width of a picture frame is 1/4 the length. Write an algebraic expression of four terms for the perimeter of the picture frame. Use x as your variable.
Answer:
P = 2.5xStep-by-step explanation:
Let the length is x, then the width is 1/4x.
Find the perimeter of rectangle:
P = 2(l + w)P = 2(x + 1/4x) = 2x + 1/2x = 2 1/2x = 2.5xWhich function is graphed below?
The graph of the function is y = arcsec(x).
Given the exponential growth function f ( x ) = 75 ( 1.02 ) x f ( x ) = 75 ( 1.02 ) x What is the initial value of the function? What is the growth factor, or growth rate of the function (as a percent)? %
Answer:
Step-by-step explanation:
The initial vale is when x = 0
- That is 75,
The growth factor is 2%.
Fill in the P (X=x) values to give a legitimate probability distribution for the discrete random variable X, whose possible values are -3, 1, 3, 5, and 6.
P(X=x)
-3: 0.14
1:
3: 0.13
5: 0.30
6:
These are a legitimate probability distribution:
P(X=-3) = 0.14P(X=1) = 0.1P(X=3) = 0.135P(X=5) = 0.306P(X=6) = 0.319How to determine legitimate probability distribution?To have a legitimate probability distribution, the probabilities for all possible values of X must satisfy two conditions:
Each probability value must be between 0 and 1, inclusive.
The sum of all probability values must equal 1.
Check if the given probabilities satisfy these conditions:
P(X=-3) = 0.14 (valid)
P(X=1) = 0.1 (valid)
P(X=3) = 0.135 (valid)
P(X=5) = 0.306 (valid)
Now, calculate the remaining probability to check if it satisfies the second condition:
P(X=6) = 1 - (P(X=-3) + P(X=1) + P(X=3) + P(X=5))
P(X=6) = 1 - (0.14 + 0.1 + 0.135 + 0.306)
P(X=6) = 1 - 0.681
P(X=6) = 0.319
Since the calculated probability is valid (between 0 and 1), There is a legitimate probability distribution for the discrete random variable X:
P(X=-3) = 0.14
P(X=1) = 0.1
P(X=3) = 0.135
P(X=5) = 0.306
P(X=6) = 0.319
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