Answer:
Parallel lines are lines in the same plane
that never intersect and are always the same distance apart
Giving brainliest to CORRECT answer.
Answer:
B) (-3,4)
Step-by-step explanation:
I graphed the function on the graph below to show you that vertex of the function.
If this answer is correct, please make me Brainliest!
The answer is B because it appears on my graphing calculator as this.
Un coche tarda 12 minutos en dar la vuelta a un circuito si va a una velocidad de 80 km/h. Cuánto tiempo tardara en recorrer el mismo circuito si va a una velocidad de 100 km/h?
A sample of matter experiences a decrease in average kinetic energy as it continues to cool. One would anticipate that the particles will eventually come to a complete stop. The temperature at which particles should theoretically stop moving is absolute zero. Thus, option B is correct.
What theory directly contradicts concept of absolute zero?
All molecules are predicted to have zero kinetic energy and, as a result, no molecular motion at absolute zero (273.15°C). Zero is a hypothetical value (it has never been reached).
Absolute zero signifies that there is no kinetic energy involved in random motion. A substance's atoms don't move relative to one another.
Therefore, Kinetic energy because it can create heat which goes against the absolute zero. A gas molecule's kinetic energy tends to zero when the temperature reaches absolute zero.
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A card is randomly selected from a standard deck of 52 cards. What is the probability that it is a
2 or an 8?
Answer:
c
Step-by-step explanation:
for this question, it helps to know what cards are in the deck. since there are four of everything (four suits), there will be four 8's and four kings. this means that we are aiming for one of 8 cards. therefore, 8/52= .1538 or answer C.
3
Suppose that a very la: Enter your search term
cameras and that of them are defective. A sample of 2 cameras is
8
selected at random. Define the random variable X as the number of defective cameras in the sample.
a. Write the probability distribution for X. Round to two decimal places.
X
P(X)
b. What is the expected value of X? Round to two decimal places.
Preview
Answer:
you were present when a senor student bullied a junior one. describe what happened to the teacher on duty
Fide the volume and round to the nearest tenth . Please help I will give you brainless
Answer:
46
Step-by-step explanation:
Answer:
4.18 inch^3
Step-by-step explanation:
use the sphere volume formula :
V = (4/3)*pi*r^3
the radius of this sphere is 2/2 = 1 ( diameter / 2)
plugging in the values :
V = (4/3)*3.1415*1^3 = 4.18
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.
Marco wants to know how much the other students in his mathematics class study. He recorded the data he collected in
the following table.
Time spent studying per week (in hours)
2.0
5.0
1.0
2.5
2.5
3.5
0.0
4.5
2.5
4.0
3.5
3.0
2.0
1.5
4.0
2.0
0.5
3.0
1.0
3.0
3.5
1.5
1. Construct a histogram for the data.
Answer:
Step-by-step explanation:
This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.
Consider the first quadrant of the unit circle. How does the covenant ratio change as the sine ratio increases?
Answer:
For acute angles, remember what sine means: opposite over hypotenuse. If we increase the angle, then the opposite side gets larger. That means "opposite/hypotenuse" gets larger or increases.
Step by Step:
Keep this in mind >>
Consider the unit circle > The sine and cosine ratios are the only ratios that have 1 (the radius or hypotenuse) as the denominator. The numerators (sides) vary between 0 and 1, thus determining that the sine and cosine do the same.
All of the other ratios (tangent, cotangent, secant, cosecant) have a side as the denominator, varying between 0 and 1. As any denominator approaches 0, the value of the ratio approaches infinity.
surface area of a cylinder 1m radius and 5m side
Answer:
37.7 m
Step-by-step explanation:
Use this formula:
A=2πrh+2π\(r^{2}\)
Answer: A=12pi
Step-by-step explanation:
A= 2*pi*R*H + 2*pi*R^2
A=2*pi*1*5 + 2*pi*1^2
A=10pi + 2pi
A=12pi
A sequence starts with: 44, 176, 704, 2816... Calculate the next 4 terms. 0 SCH
Since the terms of the sequence are increasing with large magnitudes (with a multiplicative factor of 4), it appears to be a geometric sequence.
As such, we have the first term to be:
\(a=44\)and the common ratio is:
\(r=\frac{176}{44}=4\)Now, given that the nth term of a geometric sequence is given by:
\(T_n=ar^{n-1}\)Thus, the fifth term is:
\(\begin{gathered} T_5=ar^{n-1} \\ T_5=(44)\times(4)^{5-1} \\ T_5=(44)\times(4)^4 \\ T_5=(44)\times(256) \\ T_5=11264 \end{gathered}\)Also, the sixth term is:
\(undefined\)If the weather in City A decreased constantly through the night from
5:00 PM to 9:00 PM, what is the rate of decrease of the weather in
degrees per hour if the temperature dropped from 20 degrees to 12
degrees?
A) 2
B) -2
C) 8
D) -8
E) 1
The rate of decrease of the weather in degrees per hour is 2 degrees.
EquationsThe time elapsed is from 5:00 PM to 9:00 PM, which is 4 hours.
The temperature dropped from 20 degrees to 12 degrees, which is a change of -8 degrees.
Therefore, the rate of decrease of the weather in degrees per hour is:
-8 degrees / 4 hours = -2 degrees per hour
What is rate of change of temperature?A measurement of how quickly the temperature changes over time is the rate of change. Depending on the time frame being considered, it is typically represented in units of degrees per hour, degrees per minute, or degrees per second. Depending on whether the temperature is rising or falling, the rate of temperature change can be either positive or negative. The temperature rises when the rate of change is positive; it falls when the rate of change is negative.
Many variables, including the amount of sunlight, wind speed, humidity, and the time of day, have an impact on the pace of temperature change. Generally speaking, temperature varies more quickly during the day than it does at night, and it varies more quickly in places with less foliage and more exposed ground. Human activity, such as the emission of greenhouse gases into the atmosphere, which can eventually lead to an increase in global temperatures, can also have an impact on the pace of change of temperature.
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A mug of coffee cools down
1/2
of a degree in
1/5
of an hour. At what rate is the coffee cooling?
I need it now pleaseeee
Answer:
2 1/2
ggez
Step-by-step explanation:
how you would use the distributive property to expand 7(x + 4). I NEED HELPP
Answer:
7x+28
Step-by-step explanation:
7(x+4)
Use the distributive property to multiply 7 by x+4.
7x+28
Graph if needed:
1. Find the m
2. Determine the length of side AB.
3. What are the sine and cosine ratios for angles A and B?
sin
cos
sin
cos
4. What do you notice about the sine of angle A and cosine angle B?
5. What do you notice about the cosine of angle A and the sine of angle B?
6. Add up angles A and B. What do they equal?
7. Given the information you obtained in numbers 1-5, determine the kissing angles in A-D below.
a. sin40 degrees=cos
b. cos27 degrees= sin
c. sin90 degrees = cos
d. cos65 degrees = sin
Step-by-step explanation:
remember, the sum of all angles in a triangle is always 180°.
1. you mean find the angle at A, yes ?
180 = angle A + angle B + angle C =
= angle A + 38 + 90
angle A = 180 - 38 - 90 = 90 - 38 = 52°
2. Pythagoras
AB² = 11² + 8.5² = 121 + 72.25 = 193.25
AB = 13.90143877... in
3. sine/cosine ratio is tangent.
sin(38) × AB = 8.5 in
cos(38) × AB = 11 in
sin(38)/cos(38) = tan(38) = 8.5/11 = 0.772727272...
sin(52) × AB = 11 in
cos(52) × AB = 8.5 in
sin(52)/cos(52) = tan(52) = 11/8.5 = 1.294117647...
4. they are equal. as sin(x) = cos(90-x).
5. they are equal. as cos(x) = sin(90-x).
6. 90°. again, the sum of all angles must be 180°. so, when one angle is all by itself already 90°, then there are only 90° left for the other 2 angles.
7. not sure what you mean by "kissing angles" but
a. sin(40°) = cos(90-40) = cos(50°) = 0.64278761...
b. cos(27°) = sin(90-27) = sin(63°) = 0.891006524...
c. sin(90°) = cos(90-90) = cos(0°) = 1
d. cos(65°) = sin(90 - 65) = sin(25°) = 0.422618262...
Find the volume of a cone with a diameter of 12.9 cm and a height of 16.6 cm.
Answer:
112cm^3
Step-by-step explanation:
Formula for volume of a cone is:
\( \frac{1}{3} \times \pi \times {r}^{2} \times h\)
r = radius and h = height
To find the radius you divide the diameter by 2:
12.9 ÷ 2 = 6.45
Now substitute values into the formula:
\( \frac{1}{3} \times \pi \times {6.45}^{2} \times 16.6\)
Which equals 112cm^3
whats 10 x 34? please tell me
Answer:
340=10*340 calculated
Answer:
340
Step-by-step explanation:
i know math alot
If -3 is a lower bound for the real zeros of f(x), then -2 is also a lower bound.
True or False?
The statement is false, because -2 is larger than -3.
Is the statement true?We know that -3 is a lower bound for the real zeros of f(x).
So, if we define k as the smallest real zero of f(x), we have:
-3 < k.
Then we can take, for example, k = -2.5
That is an allowed value for the real zero.
In that case, -2 is not a lower bound, because is false that:
-2 < k = -2.5
Then if -3 is a lower bound for the real zeros of f(x), we can't assume that -2 is also a lower bound (because -2 is larger than -3).
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help please i got absolutely no clue how to solve this
Answer:
A)
Step-by-step explanation:
To complete the square, we need to find such p and q that:
r^2 - 12r - 27 = (r - p)^2 - q = r^2 - 2pr + h^2 - q
Because we know that 2pr = 12r, then p = 6
(r - p)^2 - q = (r - 6)^2 - q = r^2 - 12r + 36 - q
We know that 36 - q = -27, so q = 36+27 = 63
Now we can solve for = 0
(r - 6)^2 - 63 = 0
(r - 6)^2 = 63
r - 6 = √63 or r - 6 = -√63
r = 6 + √63 = 6 + 3√7 or r = 6 - √63 = 6 - 3√7
Identify the method that will be used to solve for x for each equation.
4x = 20
X - 11 = 9
5x + 6x = 22
5 (x - 2) = 30
Answer:
Identify the method that will be used to solve for x for each equation.
4x = 20
✔ division property of equality
x – 11 = 9
✔ addition property of equality
5x + 6x = 22
✔ combining like terms
5(x – 2) = 30
✔ distributive property
Step-by-step explanation:
Find the value of the polynomial x2–3xy+ 1/2 y2 if x= 1/2 and y= 2/3 .
The value of the given polynomial x² - 3xy + 1/2y² if x = 12 and y = 2/3 is; -19 / 36.
What is the value of the polynomial for the given variable values?It follows from the task content that the value of the polynomial be determined for the given polynomial expression.
As evident in the task content; the given expression is;
x² - 3xy + 1/2 y².
Hence, since the given values of x and y are: 1/2 and 2/3 respectively.
On this note, we have that;
( 1/2 )² - ( 3 × 1 / 2 × 2 / 3 ) + ( 1 / 2 × (2 / 3)² )
= 1/4 - 1 + ( 2 / 9 )
= -3 / 4 + 2 / 9
= -19 / 36
On this note, the value of the given polynomial is; -19 / 36.
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What are the subsets of real numbers -7
The subsets of real numbers are known as:
rational numbers (decimals that don't repeat)irrational numbers (decimals that repeat)integers (a number that isn't a fraction)whole numbersnatural numbers (a positive number)Best of Luck!
Provide the reasons for the following proof.
The figure shows triangle W X Y with a segment X Z drawn from vertex X to point Z on side W Y.
Given: Segment W X is congruent to Segment X Y and segment X Z bisects angle W X Y
Prove: triangle W X Z is congruent to triangle Y X Z
Statements Reasons
1.Segment W X is congruent to Segment X Y and segment X Z bisects angle W X Y 1. Given.
2. angle W X Z is congruent to angle Y X Z 2. Definition of an angle bisector.
3. Segment X Z is congruent to segment X Z. 3. _____________
4. triangle W X Z is congruent to triangle Y X Z 4. _____________
A. Reflexive Property of congruent to; SSS
B. Symmetric Property of congruent to; SSS
C. Reflexive Property of congruent to; SAS
D. Symmetric Property of congruent to; SAS
SOMEONE HELP! PLEASE!
The two column proof showing that ΔWXZ ≅ ΔYXZ is as shown below
From the given triangle, we see that;
Given: WX ≅ XY, XZ bisects WXY
Prove: ΔWXZ ≅ ΔYXZ
The two column proof for the above is as follows;
Statement 1; WX ≅ XY, XZ bisects 2
Reason 1; Given
Statement 2: ∠WXZ ≅ YXZ
Reason 2; Angle bisector
Statement 3; XZ ≅ XZ
Reason 3: Reflexive property of congruence
Statement 4: ΔWXZ ≅ ΔYXZ
Reason 4: SAS Congruence Postulate
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the bottom of a rectangular swimming pool is 23 meters wide and 29 meters long. What is its perimeter
Answer:
104m
Step-by-step explanation:
23+23+29+29=104m
Which table represents a linear function? ( all x tables adre "1,2,3,4" i.e. A. x 1,2,3,4. y 1/2, 1, 1 1/2, 2. B. y 1, 1/2, 1/3, 1/4. C. y 7, 9, 13, 21. D. y 0, 6, 16, 30
Step-by-step explanation:
Based on the given tables for x = 1, 2, 3, and 4:
A. x: 1, 2, 3, 4. y: 1/2, 1, 1 1/2, 2
B. x: 1, 2, 3, 4. y: 1, 1/2, 1/3, 1/4
C. x: 1, 2, 3, 4. y: 7, 9, 13, 21
D. x: 1, 2, 3, 4. y: 0, 6, 16, 30
A linear function has a constant rate of change (slope). Let's calculate the differences in y-values for each table:
A. 1 - 1/2 = 1/2, 1 1/2 - 1 = 1/2, 2 - 1 1/2 = 1/2 (constant differences)
B. 1 - 1/2 = 1/2, 1/2 - 1/3 = 1/6, 1/3 - 1/4 = 1/12 (not constant)
C. 9 - 7 = 2, 13 - 9 = 4, 21 - 13 = 8 (not constant)
D. 6 - 0 = 6, 16 - 6 = 10, 30 - 16 = 14 (not constant)
Table A represents a linear function, as the differences in the y-values are constant (1/2).
Write an equation in general form (Ax+By+C =0) for the line that passes through A(2, 4) and B(11, 8).
Answer:
4x - 9y + 28 = 0------------------------
Find the slope of AB:
m(AB) = (8 - 4)/(11 - 2) = 4/9Use point-slope form and point A(2, 4) to determine the line:
y - 4 = (4/9)(x - 2)Multiply both sides by 9 to clear fraction:
9(y - 4) = 4(x - 2)Open parenthesis and convert the equation into ax + by + c = 0:
9y - 36 = 4x - 8 ⇒4x - 9y - 8 + 36 = 0 ⇒4x - 9y + 28 = 0given a pair of similar triangles find the missing length x and the missing angles a,b,c
Angles of similar triangles are always congruent a: 63, b: 88, c: 29 and x = 53.75
Find the missing length?Based on the information available, there are numerous equations for calculating the area of a triangle. As indicated in the calculator above, please use the Triangle formula for additional information and equations for calculating the area of a triangle as well as determining the sides of a triangle using whatever information is available.
find the ratio between the two triangles:
40 on the left corresponds to 50 on the right = 40/50 = 43/x
to find x:
40x = 43 × 50
40x = 215
x = 215/40
x = 53.75
"angles of similar triangles are always congruent."
a: 63
b: 88
c: 29
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Full question:
Given a pair of similar triangles, find the missing length x and the missing angles A, B, and C.
Help! Look at the figure. If mzJ = 55, find m
90
35
70
55
The value of the required missing angle is;
m<JKM = 35°
How to find the missing angle of the triangle?We know from geometry that the sum of angles in a triangle sums up to 180 degrees.
Now, we are trying told that in the given Triangle that the angle m<J = 55 degrees.
We also see that the angle <KMJ is equal to 90 degrees becasue it is a right angle.
Thus to find the angle m<JKM, we can write the name expression as;
m<JKM = 180 - (90 + 55)
m<JKM = 35°
Thus that's the value of the required missing angle.
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an airlane is on heading of 075 degree at 250 km/h wind is blowing from 300 Determine the resultan velocity of the airplane using cartesian vectors and state the ground speed and bearing of the resultant
The airplane's groundspeed is approximately 242.25 km/h, and the resultant bearing is approximately 55.04° (relative to true north, measured clockwise).
How to solve for the airplane's groundspeed
To determine the resultant velocity of the airplane, we need to break down the airplane's velocity and the wind's velocity into their respective components and add them. Let's assume that the angles are measured clockwise from true north.
Let's denote:
Vp = airplane's speed = 250 km/h
θp = airplane's heading = 075 degrees
Vw = wind's speed = 85 km/h
θw = wind's heading = 300 degrees
We can then find the eastward (x) and northward (y) components of the velocities:
For the airplane:
Vpx = Vp * cos(θp) = 250 * cos(75 degrees) = 64.95 km/h
Vpy = Vp * sin(θp) = 250 * sin(75 degrees) = 241.92 km/h
For the wind:
Vwx = Vw * cos(θw) = 85 * cos(300 degrees) = 73.60 km/h
Vwy = Vw * sin(θw) = 85 * sin(300 degrees) = -42.50 km/h
We then sum the x and y components of the two velocities to find the resultant velocity components:
Vrx = Vpx + Vwx = 64.95 km/h + 73.60 km/h = 138.55 km/h
Vry = Vpy + Vwy = 241.92 km/h - 42.50 km/h = 199.42 km/h
The magnitude of the resultant velocity, which represents the groundspeed (Vr), is found using the Pythagorean theorem:
Vr = sqrt((Vrx)^2 + (Vry)^2) = sqrt((138.55)^2 + (199.42)^2) = 242.25 km/h
The bearing (θr) of the resultant velocity (relative to north) can be found using inverse tangent:
θr = atan2(Vry, Vrx) = atan2(199.42, 138.55) = 55.04 degrees
Therefore, the airplane's groundspeed is approximately 242.25 km/h, and the resultant bearing is approximately 55.04° (relative to true north, measured clockwise).
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A ping pong ball is drawn at random from an urn consisting of balls numbered 2 through 10. A player wins 1 dollar if the number on the ball is odd and loses 1 dollar if the number is even. What is the expected value of his winnings?
Answer:
The expected value is defined as:
EV = ∑xₙ*pₙ
Where xₙ represents the n-th event, and pₙ is the probability of that event.
Now, the events are:
The possible outcomes are: {2, 3, 4, 5, 6, 7, 8, 9, 10} 9 in total.
Winning $1, when the number is odd. The outcomes in this case are: {3. 5. 7. 9}
4 out of 9, then the probability is p = 4/9.
Lossing $1 when the number is even. The outcomes in this case are {2, 4, 6, 8, 10}
5 out of 9, the probability is p = 5/9.
Then the expected value is:
EV = (4/9)*$1 - (5/9)*$1 = (-1/9)*$1 = -$0.11...
Select all lengths that are equal to 3 yards 16 inches.
The lengths equal to 3 yards 16 inches are 3 yards, 108 inches, 3.44 yards (approximately), and 108.44 inches (approximately).
To determine the lengths that are equal to 3 yards 16 inches, we need to convert the measurements into a consistent unit. Since both yards and inches are units of length, we can convert the inches into yards or the yards into inches to find the equivalent lengths.
1 yard is equal to 36 inches (since 1 yard = 3 feet and 1 foot = 12 inches).
Therefore, 3 yards is equal to 3 * 36 = 108 inches.
Now, we can compare 108 inches to 3 yards 16 inches.
108 inches is equal to 3 yards, so it matches the given length.
To convert 16 inches into yards, we divide it by 36 since 1 yard = 36 inches. 16 inches / 36 = 0.44 yards.
Therefore, 3 yards 16 inches is equivalent to:
3 yards
108 inches
3 yards 0.44 yards (or approximately 3.44 yards)
108 inches 0.44 yards (or approximately 108.44 inches)
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