Answer:
Similar but not congruent
Step-by-step explanation:
For them to be congruent, they have to have same everything but not necessarily the same orientation. They are not congruent because their corresponding sides aren't the same measurement.
You can tell if two triangles are similar if each pair of corresponding are congruent.
They will also have corresponding sides are proportional.
That is 50/40=60/48=40/32 in this case? Well does it? It does, because each one of them is equal to 1.25.
Answer:
The correct answer is second option
They are similar, but not congruent
Step-by-step explanation:
From the given diagram we can see two triangles.
ΔUVW and ΔXYZ
m<X = m<U,
m<Y = m<V and
m<Z = m<W
Therefore two triangles are similar
The sides of these two triangles are not congruent, therefore these two triangles are not congruent.
The correct answer is second option
They are similar, but not congruent
Luis, Diego, and Cecil are going fishing.
Luis brings 4 cans of worms. Diego brings
3 cans of worms plus 2 extra worms. Cecil
brings 2 cans of worms. If they have a
total of 65 worms and each can contains
the same number of worms, how many
worms are in each can?
Answer:
7 worms
Step-by-step explanation:
Let each can have x worms, so we can say
Luis has 4x worms
Diego has 3x + 2 worms
Cecil has 2x worms
Since, in total they have 65 worms, we can write and equation and solve:
4x + 3x + 2 + 2x = 65
9x + 2 = 65
9x = 63
x = 63/9
x = 7
There are 7 worms in each can.
Answer:
7
Step-by-step explanation:
Alex skateboarded 2 1/3 miles. Carla skateboarded 4 1/5 miles. How much farther did Carla board then Alex
Carla skateboarded 28/15 miles farther than Alex.
To find out how much farther Carla skateboarded than Alex, we first calculate the total distance each student skateboarded:
Alex: 2 1/3 miles = 7/3 miles.Carla: 4 1/5 miles = 21/5 miles.Next, we find the difference:
Carla - Alex = 21/5 - 7/3 = 63/15 - 35/15 = 28/15 miles.
Therefore, Carla skateboarded 28/15 miles farther than Alex.
which is the area of a rectangle with a length of 21 feet and a width of 15 feet
Answer:
315 ft^2
Step-by-step explanation:
Answer: [tex]315\ ft^2[/tex]
Step-by-step explanation:
In order to calculate the area of a rectangle, you can use the following formula:
[tex]A=lw[/tex]
Where "l" is the lenght of the rectangle and "w" is the width.
In this case you know that this rectangle has a length of 21 feet and a width of 15 feet. Then:
[tex]l=21\ ft\\w=15\ ft[/tex]
Therefore, you can substitute these values into the formula, getting that the area of this rectangle is:
[tex]A=(21\ ft)(15\ ft)\\\\A=315\ ft^2[/tex]
LeAnn wants to gift wrap a present she got for her little brother. How many square inches of gift wrap will be needed to cover a box that is 5in x 7in x 3in?
A box has six sides.
Using the dimensions of the box:
2 sides are 5 x 7
2 sides are 7 x 3
2 sides are 5 x 3
Now calculate the total area:
2 x 5 x 7 = 70
2 x 7 x 3 = 42
2 x 5 x 3 = 30
Total area = 70 + 42 + 30 = 142 square inches.
Answer:
The answer is 142 square inches.
Step-by-step explanation:
Let length be = 5
Let the width be = 7
Let the height be = 3
The gift box is a 3 D box with 6 faces.
So, we get three possible combinations, and each combination is multiplied by 2 for a parallel face.
Hence, we get;
[tex](5)(7)(2)=70[/tex] square inches
[tex](5)(3)(2)=30[/tex] square inches
[tex](7)(3)(2)=42 [tex] square inches
Therefore, the amount of gift wrap needed will be:
[tex]70+30+42=142[/tex] square inches.
James, Matt and Emily are participating in a free throw contest for charity. Matt made four times as many points as James. Emily made 20 points more than Matt. Together they made a total of 155 points.
how to write an equation for the situation?
Solve equation for variable.
Answer:
James=x=15 points
Matt=4x=4×15=60 points
Emily=4x+20= (4×15)+20= 60+20=80points
Step-by-step explanation:
You should breakdown the question by writing an expression to represent the points for each person
Lets assume James had x points
So Matt had 4 times as many points as James= 4x points
Emily had 20 points more than Matt= 4x+20 points
Total number of points all together was =155
Write an expression for the total number of points all together
[tex]x+4x+4x+20=155[/tex]
Solve for x in the equation
[tex]x+4x+4x+20=155\\\\9x+20=155\\\\\\9x=155-20\\\\\\9x=135\\\\\\x=15[/tex]
Substitute values in expressions
James=x=15 points
Matt=4x=4×15=60 points
Emily=4x+20= (4×15)+20= 60+20=80points
what is the y-intercept of the line with a slope of -7 that passes through the point (-1,-5
Answer:
-12
Step-by-step explanation:
Slope-intercept form of a line is y=mx+b where m is the slope and b is the y-intercept.
We are given m=-7 and a point (x,y)=(-1,-5) in on the line.
Entering this information into y=mx+b, we will be allowed enough information to find the y-intercept, b.
y =mx+b with m=-7 and (x,y)=(-1,-5):
-5=-7(-1)+b
-5=7+b
Subtract 7 on both sides:
-5-7=b
-12=b
So the y-intercept is -12.
The sum of the first two terms and the sum to infinity of a geometry progression are 48/7 and 7 respectively. Find the values of the common ratio r and the first term when r is positive.
Answer:
r = ±1/√7
a₁ = 7 − √7
Step-by-step explanation:
The first term is a₁ and the second term is a₁ r.
a₁ + a₁ r = 48/7
The sum of an infinite geometric series is S = a₁ / (1 − r)
a₁ / (1 − r) = 7
Start by solving for a₁ in either equation.
a₁ = 7 (1 − r)
Substitute into the other equation:
7 (1 − r) + 7 (1 − r) r = 48/7
1 − r + (1 − r) r = 48/49
1 − r + r − r² = 48/49
1 − r² = 48/49
r² = 1/49
r = ±1/√7
When r is positive, the first term is:
a₁ = 7 (1 − r)
a₁ = 7 (1 − 1/√7)
a₁ = 7 − 7/√7
a₁ = 7 − √7
The value of the common ratio r is 1/√7 and the first term is 7 − √7 in the geometry progression.
What is geometric series?The geometric series defined as a series represents the sum of the terms in a finite or infinite geometric sequence. The successive terms in this series share a common ratio.
The nth term of a geometric progression is expressed as
Tₙ = arⁿ⁻¹
The first term is a
So the second term is a r.
a + ar = 48/7
The sum of an infinite geometric series is :
S = a / (1 − r)
a / (1 − r) = 7
Solve for a,
a = 7 (1 − r)
Substitute value into the equation:
7 (1 − r) + 7 (1 − r) r = 48/7
1 − r + (1 − r) r = 48/49
1 − r + r − r² = 48/49
1 − r² = 48/49
r² = 1/49
r = ±1/√7
When r is positive, the first term will be:
a = 7 (1 − r)
a = 7 (1 − 1/√7)
a = 7 − 7/√7
a = 7 − √7
Thus, the value of the common ratio r is 1/√7 and the first term is 7 − √7 in the geometry progression.
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what is the answer for : f(x)=x^3 - 4x^2 +2x -6 divided by x-3
Answer:
[tex]x^2-x-1+\frac{-9}{x-3}[/tex]
Step-by-step explanation:
I prefer to use synthetic division when possible. Here it is possible since we are dividing by a linear factor.
Since we are dividing by x-3, 3 goes on the outside.
If we were dividing by x+3, -3 goes on the outside.
3| 1 -4 2 -6
| 3 -3 -3
_______________
1 -1 -1 -9
So the quotient is 1x^2-1x-1 + (-9)/(x-3).
Let's simplify this and also put in the pretty math code:
[tex]x^2-x-1+\frac{-9}{x-3}[/tex]
What is the meaning of pi?
Answer:
[tex]\pi-\bold{pi}\\\\\pi\ \text{it's the ratio of a circle's circumference to its diameter}\\\\\pi=\dfrac{\text{circumference of a circle}}{\text{circle diameter}}\\\\\pi\ \text{it's irrarional number}\\\\\pi=3.14159265358979323846264338327...\\\\\text{Approximation of}\ \pi:\\\\\pi\approx3.14\\\\\pi\approx\dfrac{22}{7}\\\\\pi\approx\dfrac{355}{113}[/tex]
The number pi occurs when calculating the surface area or volume of the rotational solids.
Cylinder:
[tex]S.A.=2\pi r^2+2\pi rH\\\\V=\pi r^2H[/tex]
Cone:
[tex]S.A.=\pi r^2+\pi rl\\\\V=\dfrac{1}{3}\pi r^2H[/tex]
Sphere:
[tex]S.A.=4\pi R^2\\\\V=\dfrac{4}{3}\pi R^3[/tex]
The number pi occurs when calculating the area and the circumference of a circle.
[tex]C=\pi d=2\pi r\\\\A=\pi r^2[/tex]
It is also used to convert angle measure in degrees to radians.
[tex]x^o=\dfrac{x\pi}{180}\ rad[/tex]
The meaning of pi is when you calculate the volume for cylinders, cone, and spheres. A cone volume shows [tex]\frac{1}{3}[/tex][tex]\pi[/tex][tex]r^2h[/tex]. You see, it shows pi. Also, pi means 3.14 in approximation, but if it was not in approximation, it would have been 3.141592654. Pi is a irrational number, since it goes on forever. For the circumference to the diameter (of a circle) formula would be [tex]\pi[/tex] = C/D. And there more about the definition of pi, it is also the sixteenth letter of the Greek alphabet, considering to be the letter P.
Hope this helped!
Nate
in the diagram below, what is the approximate length of minor arc de?
A.17.3 cm
B. 69.1 cm
C.29.7 cm
D. 34.5 cm
help me please !!!!!!!!!!!!
Answer:
Option D, 34.5 cm
Step-by-step explanation:
Length of arc is represented by (rθ)
Where r = radius and θ = angle at the center formed by arc in radians.
length of arc = [tex]33\times (\frac{\Theta}{180})\pi[/tex]
= [tex]33\times (\frac{60\pi}{180})[/tex]
= (33 × π/3)
= (11π)
= 11 × 3.14
= 34.5 cm
Option D, 34.5 cm is the answer.
Complete the table for the given rule y=x/4
The table of values consists of a grouped data representing the function. The corresponding vaues of x if y is 4,2, and 9 are 16, 8 and 36
Table of values and functionThe table of values consists of a grouped data representing the function.
Given the equation y = x/4
If y = 4
4 = x/4
x = 16
If y = 2
2 = x/4
x = 8
If y = 9
9 = x/4
x = 36
Hence the corresponding vaues of x if y is 4,2, and 9 are 16, 8 and 36
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Identify the initial amount a and the growth factor b in the exponential function.
f(x) = 620 - 7.8^x
Step-by-step explanation:
An exponential function has the form:
y = a · b^x
Are you sure you copied the problem correctly? Perhaps instead of minus, you meant multiplication:
f(x) = 620 · 7.8^x
If so, then a = 620 and b = 7.8.
Determine the vertex of the function f(x) = 2(x-4)^2+5
Answer:
(4,5)
Step-by-step explanation:
The vertex is written in vertex form.
y = a(x - b)^2 + c
Vertex: (b,c) Notice the sign change on b.
So for your equation, you get (4,5) No sign change on the 5.
Answer: (4, 5)
Proof of validity is shown below.
URGENTLY NEED HELP ON THIS WORD PROBLEM!!! PLEASE HELP ME OUT :)
Answer:
B there were 4 ducks living in Anoops pond when he first built it
Step-by-step explanation:
The equation is in the form
y = a b^x
The a is the initial value at time x =0
The b is the growth rate
x is the time
So
4 * 3^t
4 is the initial amount of ducks
3 is the growth rate, or the duck population increase by a factor of 3 each time period
t is the time period in years
in 9 hours 2 in of rain fell at this rate how many inches will fall in 12 hours
Answer:
2 2/3 or
2.666667 inches rainfall or
8/3 inches of rainfall.
Step-by-step explanation:
Set up a proportion. Since you are going to be looking for inches of rainfall, it should go in the numerator.
2 in rainfall/9 hours = x / 12 inches. Multiply both sides by 12
2*12 /9 = x
8/3 inches = x
2 2/3 inches should fall in 12 hours.
Answer:
2.67 in
Step-by-step explanation:
∵ In 9 hours amount of rainfall = 2 in
∴ In 1 hours amount of rainfall = 2/9 in
∴ in 12 hours amount of rainfall = (2/9) × 12
= [tex]\frac{24}{9}[/tex] = [tex]\frac{8}{3}[/tex]
≈ [tex]2\frac{2}{3}[/tex] in or 2.67 in.
In 12 hours 2.67 in. rain fell.
distance between coordinates -10, -
9 and 6,8
Answer:
sqrt(545)
Step-by-step explanation:
The distance between 2 points can be found by
d = sqrt( (x2-x1)^2 + (y2-y1)^2)
= sqrt( (6--10)^2 + (8--9)^2)
sqrt( (6+10)^2 + (8+9)^2)
sqrt( (16)^2 + (17)^2)
sqrt( 256+289)
sqrt(545)
[tex]\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-10}~,~\stackrel{y_1}{-9})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{8})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[6-(-10)]^2+[8-(-9)]^2}\implies d=\sqrt{(6+10)^2+(8+9)^2} \\\\\\ d=\sqrt{256+289}\implies d=\sqrt{545}\implies d\approx 23.35[/tex]
Please please answer this correctly
Answer:
189ish
Step-by-step explanation:
use a calculator
and I think that this is right...
A system of inequalities can be used to determine the depth of a toy, in meters, in a pool depending on the time, in seconds, since it was dropped. Which constraint could be part of the scenario?
PLEASE ANSWER ASAP TIMED QUIZ
Answer:
The correct option is 1.
Step-by-step explanation:
It is given that a system of inequalities can be used to determine the depth of a toy, in meters, in a pool depending on the time, in seconds, since it was dropped.
Let y be the depth of a toy and x is time, in seconds.
In the given graph a solid horizontal line passes through the point (0,-1) and shaded region is above the line. So, the inequality of red line is
[tex]y\geq -1[/tex]
The depth of a toy can be less than -1. It means the pool is 1 meter deep.
The blue line is a dashed line which passes through (0,0) and (2,-1).
So the slope of line is
[tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{-1-0}{2-0}=-\frac{1}{2}[/tex]
The equation of blue line is
[tex]y=mx+b[/tex]
where, m is slope and b is y-intercept.
[tex]y=-\frac{1}{2}x+0[/tex]
[tex]y=-\frac{1}{2}x[/tex]
The shaded region is below the line so the required inequality is
[tex]y< -\frac{1}{2}x[/tex]
it means the toy sinks at a rate of less than 1/2 meter per second.
Therefore the correct option is 1.
Answer:The Answer is A
Step-by-step explanation: I took the test on edge
What is the discriminant of the polynomial below?
2х2 + 4x - 9
А. 88
в. 22
с. -56
D. -2
Let d = discriminant
d = b^2 - 4ac
Let a = 2, b = 4 and c = -9
We now plug and chug.
d = (4)^2 - 4(2)(-9)
d = 16 - 8(-9)
d = 16 + 72
d = 88
Answer:
А. 88
Step-by-step explanation:
2х^2 + 4x - 9
This is in the form
ax^2 +bx +c
where a=2 b=4 and c=-9
The discriminant is
b^2 -4ac
Substituting into the equation
4^2 -4(2) (-9)
16 - (-72)
16+72
88
A store owner estimates that by charging x dollars each for a certain lamp, he can sell 25 - x lamps each week. What price will yield maximum revenue?
Answer:
[tex]\frac{25}{2}[/tex] or 12.5
Step-by-step explanation:
So if 25 - x items are sold, and they each cost x, we can write an equation for the revenue to be
y = (25 - x)x
The vertex of this equation will represent the maximum revenue. So we need to write this equation in vertex form so we can find the vertex.
Vertex from is
y = a(x - h)^2+ k,
where (h,k) represent the vertex.
the vertex form of this equation would be
[tex]y= -(x-\frac{25}{2} )^{2} +\frac{625}{4}[/tex]
And the vertex would be
[tex](\frac{25}{2} ,\frac{625}{4})[/tex]
This means the maximum revenue will occur when x = 25/2
The maximum revenue is at a price of $11.5 each for a certain lamp
The revenue is the total amount of money that can be made from selling a number of goods.
Revenue = price * total number of items
Since the price per item is x dollars and the total number of items is 25 - x, hence:
Revenue (R) = x * (25 - x) = 25x - x²
R = 25x - x²
The maximum revenue is at dR/dx = 0, hence:
dR/dx = 25 - 2x
25 - 2x = 0
2x = 25
x = $11.5
Hence, The maximum revenue is at a price of $11.5 each for a certain lamp.
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how much water could my well hold if the depth of the well is 30ft and the diameter of the well is 24ft
Answer:
[tex]4,320\pi\ ft^{3}[/tex] or [tex]13,564.8\ ft^{3}[/tex]
Step-by-step explanation:
we know that
The volume of the cylinder (well) is equal to
[tex]V=\pi r^{2}h[/tex]
we have
[tex]h=30\ ft[/tex]
[tex]r=24/2=12\ ft[/tex]
substitute
[tex]V=\pi (12)^{2}(30)[/tex]
[tex]V=4,320\pi\ ft^{3}[/tex]
assume
[tex]\pi=3.14[/tex]
substitute
[tex]V=4,320(3.14)=13,564.8\ ft^{3}[/tex]
If abc is reflected across the y-axis,what are the coordinates of c?
Answer:
(- 5, 3 )
Step-by-step explanation:
Under a reflection in the y- axis
a point (x, y ) → (- x, y )
Hence
C(5, 3 ) → C'(- 5, 3 )
If ABC is reflected across the y-axis then the coordinates of c is (-5,3).
What are coordinates?The coordinates refers to a point on the graph which are used to draw a line, a shape on the graph by plotting these points.
How to determine coordinates?The coordinates of ABC presently are (1,3),(3,6),(5,3). If we just reflect ABC cross y-axis then on the second quadrant only the value of x changes, the value of y remains same. So we have to just put a negative sign in front of the value of x and it becomes -5 with the value of y=3.
Hence the coordinates of C is (-5,3).
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Jacob surveyed members of three different gyms and recorded the number of hours they exercised last week. The mean and standard deviation (SD).
of the data he gathered, is shown in the table.
Gym A
Mean = 7
SD = 2.9
Gym B
Mean = 8
SD = 4.2
Gym C
Mean = 6
SD = 3.2
Use the information in the table to complete the following statement
The members of gym show the most consistency in the number of hours they exercised last week, because the
of this data set is the
Answer:
Step-by-step explanation:
Given that Jacob surveyed members of three different gyms and recorded the number of hours they exercised last week.
Table is as follows:
Gym Mean Std dev
A 7 2.9
B 8 4.2
C 6 3.2
We know that std deviation is a measure of variation of the data set from the mean.
Hence if std deviation is the least the data would be more consistent.
Here A has the least sd
Hence The members of gym show the most consistency in the number of hours they exercised last week, because the
of this data set is the one which has lowest std deviation
Final answer:
Gym A's members show the most consistency in their exercise habits because it has the lowest standard deviation (2.9) compared to Gyms B and C.
Explanation:
The members of Gym A show the most consistency in the number of hours they exercised last week, because standard deviation of this data set is the lowest. To assess consistency among data sets, we look at the standard deviation, which measures the spread of data around the mean. A lower standard deviation indicates that the data points tend to be closer to the mean. Looking at the given data for the three gyms:
Gym A: Mean = 7, SD = 2.9Gym B: Mean = 8, SD = 4.2Gym C: Mean = 6, SD = 3.2Gym A has the lowest standard deviation of 2.9, which suggests the members' weekly exercise hours vary less from the mean compared to Gyms B and C, indicating more consistency.
There are 15 red, 10 green and 9 white balls in the dark room. Jack wants to take a minimal number of balls such that at least 8 of them have the same color. How many balls does he take?
Please add an explanation and show work!!
=================================================
Explanation:
If Jack were to get really lucky and draw either
* 8 red balls in a row
* 8 green balls in a row, or,
* 8 white balls in a row
then the answer would be 8. However, this event of drawing the same color ball 8 times in a row is fairly unlikely. What is more likely is that there will be multiple colors involved (because we have roughly the same number for each color mors or less). So consider the scenario in the next section below.
----------
If Jack were to draw a red ball first, then a green ball second, and then a white ball third, then so far has selected 3 balls from the drawer. None of the colors match up. This is leading to the worst case scenario in terms of the number of balls to select. In other words, Jack is really unlucky to not get any colors match up so far. When aiming for a guarantee like this, it is wise to think of the worst case scenario.
If we repeat the pattern (red, green, white) then so far we have 2 balls of each color. In total we have selected 6 overall. Note how 3*2 = 6.
Repeat this a third time, then we'll select 9 balls total (3*3 = 9)
The fourth iteration of this pattern has 3*4 = 12 balls overall picked out, and so on.
If we continue the pattern, then we'll see that we will need to select 3*8 = 24 balls to guarantee that we have at least 8 of the same color (eg: 8 red balls). Chances are that we'll have 8 of the same color before we hit the 24 ball mark, but we wont have a 100% guarantee of such. Reaching 24 balls is the only way to guarantee the claim is true.
So to summarize: I pictured the worst case scenario (red,green,white) and extended out the pattern so that it led to 24 as the final answer.
He would have 8 balls of one color and 7 of each of the other two colors, making a total of 23 balls, which is less than the total number of balls available.
In this problem, we have a dark room with a total of 15 red balls, 10 green balls, and 9 white balls. Jack wants to take the minimum number of balls such that he has at least 8 balls of the same color. We'll find out how many balls he needs to achieve this goal.
Let's assume Jack takes "x" balls. To find the minimum number of balls he needs to have at least 8 of the same color, we can apply the Pigeonhole Principle. This principle states that if there are "n" pigeonholes and "m" items to be placed in them, and if "m" is greater than "n," then there must be at least one pigeonhole with more than one item.
In our problem, the colors of the balls represent the pigeonholes, and the balls that Jack takes represent the items to be placed in those pigeonholes. To guarantee that at least 8 balls have the same color, we need to find the minimum value of "x" such that at least one color has 8 balls.
The worst-case scenario for the minimum number of balls needed is when Jack takes 7 balls of each color. In this case, he would have 7 red balls, 7 green balls, and 7 white balls, making a total of 21 balls. However, this is more than the total number of balls available (15 + 10 + 9 = 34).
Thus, Jack can take 8 balls to ensure that he has at least 8 balls of the same color. In the worst-case scenario, he would have 8 balls of one color and 7 of each of the other two colors, making a total of 23 balls, which is less than the total number of balls available.
So, the minimum number of balls Jack needs to take is 8.
Let "R," "G," and "W" represent the sets of red, green, and white balls, respectively.
Given:
|R| = 15, |G| = 10, |W| = 9
Let "x" be the number of balls Jack takes.
We need to find the minimum "x" such that:
max(|R∩x|, |G∩x|, |W∩x|) ≥ 8
The worst-case scenario is when Jack takes 7 balls of each color, so:
|R∩x| ≤ 7, |G∩x| ≤ 7, |W∩x| ≤ 7
Total balls available in the worst-case scenario:
Total = |R∩x| + |G∩x| + |W∩x| ≤ 7 + 7 + 7 = 21
However, Total < |R| + |G| + |W|, so Jack can take 8 balls (x = 8) to guarantee that he has at least 8 balls of the same color, and the worst-case scenario would result in a total of 23 balls, which is less than the total number of balls available.
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Which of the following is the best name for the following definition?
A trapezoid with congruent legs and congruent bases.
isosceles trapezoid
parallelogram
trapezoid
quadrilateral
Answer:
parallelogram
Step-by-step explanation:
If both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
The best name for a trapezoid with congruent legs and congruent bases is Option (B) parallelogram .
What is a trapezoid ?A quadrilateral with at least one pair of parallel sides is called, a trapezoid. It can have right angles (a right trapezoid), and it can have congruent sides (isosceles trapezoid).
What is the shape of a trapezoid with congruent legs and congruent bases ?A parallelogram is a simple quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure.
Therefore, a trapezoid having parallel sides with congruent legs and bases have the opposite adjacent sides of equal lengths. The shape thus will form a parallelogram satisfying each and every property.
Thus, the best name for a trapezoid with congruent legs and congruent bases is Option (B) parallelogram .
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Prove that the median to the hypotenuse of a right triangle is half the hypotenuse.
Plan: Since midpoints will be involved, use multiples of __ to name the coordinates for M and N.
Answer:
D. 2
Step-by-step explanation:
Since midpoints will be involved, use multiples of 2 to name the coordinates for M and N.
Let
M(0,2b)N(2a,0)Then the midpoint P coordinates are
[tex]P\left(\dfrac{2a+0}{2},\dfrac{0+2b}{2}\right)\Rightarrow P(a,b)[/tex]
Use distance formula to find OP and MN:
[tex]OP=\sqrt{(a-0)^2+(b-0)^2}=\sqrt{a^2+b^2}\\ \\MN=\sqrt{(2a-0)^2+(2b-0)^2}=\sqrt{4a^2+4b^2}=2\sqrt{a^2+b^2}[/tex]
So,
MN=2OP
or
OP=1/2 MN
Answer:
The correct option is D.
Step-by-step explanation:
Given: ΔMNO is a right angled triangle with right angle ∠MON, P is midpoint of MN.
To prove: [tex]OP=\frac{1}{2}MN[/tex]
Since midpoints will be involved, use multiples of _2_ to name the coordinates for M and N.
Let the coordinates for M and N are (0,2m) and (2n,0) receptively.
Midpoint formula:
[tex]Midpoint=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
The coordinates of P are
[tex]Midpoint=(\frac{2n+0}{2},\frac{2m+0}{2})[/tex]
[tex]Midpoint=(n,m)[/tex]
The coordinates of P are (n,m).
Distance formula:
[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Using distance formula, the distance between O(0,0) and P(n,m) is
[tex]OP=\sqrt{(n-0)^2+(m-0)^2}=\sqrt{n^2+m^2}[/tex]
Using distance formula, the distance between M(0,2m) and N(2n,0) is
[tex]MN=\sqrt{(2n-0)^2+(0-2m)^2}[/tex]
[tex]MN=\sqrt{4n^2+4m^2}[/tex]
On further simplification we get
[tex]MN=\sqrt{4(n^2+m^2)}[/tex]
[tex]MN=2\sqrt{(n^2+m^2)}[/tex]
[tex]MN=2(OP)[/tex]
Divide both sides by 2.
[tex]\frac{1}{2}MN=OP[/tex]
Interchange the sides.
[tex]OP=\frac{1}{2}MN[/tex]
Hence proved.
Therefore, the correct option is D.
Complete factored form of -8a2b-a6b4
[tex]-a^2b\left(8+a^4b^3\right)[/tex]
Step-by-step explanation:When we factor out a expression, we seek the terms that are common and then take it away. This is the opposite of applying distributive. In this exercise, we need to factor the following expression:
[tex]-8a^2b-a^6b^4[/tex], so:
STEP 1: Applying exponent rules:
We know that:
[tex]a^{m+n}=a^mb^n[/tex]
So:
[tex]a^6b^4=a^2a^4bb^3[/tex]
Then, our expression remains:
[tex]-8a^2b-a^2a^4bb^3[/tex]
STEP 2: Taking common factor [tex]-a^2b[/tex], we finally get:
[tex]\boxed{-a^2b\left(8+a^4b^3\right)}[/tex]
Find the inverse of 3^√256/3^√4
No Solution
Brainliest Please :)
The probability of winning a race is 5/12. What are the odds in favor of winning the race?
Answer:
7/12
Step-by-step explanation:
If the probability of winning a race is 5/12, the odds in favor of winning the race is 7/12.
Probability of winning a race: 5/12 or a 5 out of 12 chance.
12 - 5 = 7
Numerator = 7
The denominator would stay 12.
Denominator = 12
Therefore, the odds of winning the race is 7/12.
Solve 8x+ c = k for X.
Answer:
[tex]x=\frac{k}{8} -\frac{c}{8} \\[/tex]
The Solution of x in the given equation [tex]8x+ c = k[/tex] is [tex]x =\frac{k-c}{8}[/tex]
How can the value of x be known?An equation with two polynomial sides or a set of polynomial equations is known as an algebraic equation or a polynomial equation. They are further divided into levels: linear formula for level one. degrees 2 quadratic equation.
Given that [tex]8x+ c = k[/tex]
[tex]8x = k-c[/tex]
[tex]x =\frac{k-c}{8}[/tex]
Learn more about equation at
https://brainly.com/question/29174899
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