Answer:
C. x = 1
Step-by-step explanation:
When we have an undefined slope, we have a vertical line of x = [a number]. This isn't a function and we have an undefined slope because we don't know what m equals in y = mx + b.
82 Find the circumference
of a circle with a radius
of 10cm.
A. 6.28 m
B. 62.8m
C. 628m
D. 6280m
Answer:
0.628 m (This is the correct answer but I cant find it in your options)
Step-by-step explanation:
Radius = 10 cm = 0.1 m
Now, The circumference:
=> Circumference = [tex]2\pi r[/tex]
=> C = 2(3.14)(0.1)
=> C = 0.628 m
Answer:
B. 62.8m
Step-by-step explanation:
C= 2πr= 2*3.14* 10 m= 62.8 m
Assumed radius is 10 m as the answer options are in metre
What is the range of the function graphed below?
1
-3
-2
-3
Answer:
1-(-3)=4
Step-by-step explanation:
To find the range you have to look at the list of numbers:
1, -2, -3, -3
Then you take the highest number, 1, and the lowest, -3, and then subtract.
1-(-3)
And once you do the math, that'll leave you with 4.
Car color preferences change over the years and according to the particular model that the customer selects. In a recent year, 20% of all luxury cars sold were white. Assume that 25 cars of that year and type are randomly selected. Define X to be the number of these cars that are white. What is the probability that exactly six of these cars are white?
Answer:
Step-by-step explanation:
Let x be defined as a random variable representing the number of these cars that are white. This is a binomial distribution since the outcomes are two ways. It is either a selected car of that year and type is white or not. The success would be that the selected car is white. The probability of success, p = 20/100 = 0.2
The probability of failure, q would be 1 - p = 1 - 0.2 = 0.8
Given the number of selected cars, n is 25 and number of success, x is 6, we would determine P(x = 6)
From the binomial probability calculator,
P(x = 6) = 0.16
Given that r||s and q is a transversal, we know that by the [________]. corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answer:
alternate interior angles theorem
Step-by-step explanation:
The alternate interior angles theorem states that when two parallel lines are cut by a transversal, the resulting angles produced are a pair of congruent alternate interior angles.
Given the image attached below, both line k and line l are parallel to each other and also, line t is the transversal, therefore the resulting congruent alternate interior angles produced are:
∠ 4 ≅ ∠6, ∠1 ≅ ∠7
Answer:
Step-by-step explanation:
A. Alternate interior angles theorem.
the slope of the line that passes through the points (7,1) and (x,4). What is the value of w?
Answer:
bbb
Step-by-step explanation:
bbb idk sorry x
According to a study conducted by an organization, the proportion of Americans who were afraid to fly in 2006 was 0.10. A random sample of 1 comma 200 Americans results in 132 indicating that they are afraid to fly. Explain why this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.
Answer: Even is not unusual.
Step-by-step explanation:
Given:
P = 0.10
n = 1200
x = 132
1. Sample of proportion ( ˆp ) = x/n
= 132/1200
= 0.11
2. Z = ˆp - p / √p ( 1 - p )/ n
= 0.11 - 0.10 / √0.10 ( 1 - 0.10 ) / 132
= 0.01 / 0.02611
= 0.3829
3. Probability
P ( ≥ 132 ) = P( Z > 1.50 ) = 1 - P( Z > 1.50 )
= 1 - 0.9332
= 0.0668
The probability is higher than (0.05). Which makes the event unusual, therefore there is no enough evidence which suggest that the number of Americans who are afraid to fly has increased.
The following quadrilateral is a parallelogram.
R
S
6x + 4
10x
Q
P
Angle Q measures
degrees.
Answer:
70
Step-by-step explanation:
Angle Q and angle P are supplementary angles, so they add up to 180 degrees.
6x + 4 + 10x = 180
16x + 4 = 180
16x = 176
x = 176/16
x = 11
Put x in angle Q as 11 and solve.
6(11) + 4
66 + 4
= 70
Angle Q measures 70 degrees.
This holiday weekend, Dave is going to Chicago to shop and see a baseball game. To avoid traffic, Dave decides to take the train. There is a proportional relationship between the time (in minutes) Dave spends riding the train, x, and the distance he travels (in miles), y. x (minutes) y (miles) 8 8 10 10 13 13 14 14 What is the constant of proportionality? Write your answer as a whole number or decimal. miles per minute
Answer:
k= 1 mile per minute
Step-by-step explanation:
There is a proportional relationship between the time (in minutes) Dave spends riding the train, x, and the distance he travels (in miles), y.
The table representing this information is given below:
[tex]\left|\begin{array}{c|ccccc}$x (minutes) & 8 &10&13&14 \\$y (miles) & 8 &10&13&14 \end{array}\right|[/tex]
The equation of proportionality is given as: y=kx
When x=8, y=8
Substituting we have:
8=8k
Divide both sides by 8
k=1
Therefore, the constant of proportionality, k= 1 mile per minute
Help me answer these questions
Answer:
See below.
Step-by-step explanation:
1. x = e^(x/y) Taking logs:
log x = x/y
x = y log x
Differentiating:
1 = dy/dx log x + y * 1/x
dy/dx log x = (1 - y/x)
dy/dx = (1 - y/x) / log x
dy/dx = ((x - y)/ x) / log x
dy/dx = (x - y) / x log x)
2. y^x = e ^(y - x)
Taking logs:
x log y = y - x --------------(A)
y = x + x logy --------------(B)
dy/dx = 1 + x * 1/y * dy/dx + 1*logy
dy/dx - dy/dx * x/y = 1 + log y
dy/dx ( (x - y) y)) = 1 + log y
dy/dx = y(1 + log y) / (y - x)
Using (A) and (B) :-
dy/dx = x(1 + logy)(1 + logy) / x logy The x's cancel, so:
dy/dx = (1 + logy)^2 / log y
Sorry I have to go right now..
The rest of the answers are on the re-post of these questions
In a school of 450 students, 110 of them are in the choir, 240 of them are in the band and 60 students are in the choir and the band Find the probability that a student chosen at random is in the choir or band or both
Answer:
29/45 ≈ 0.644
Step-by-step explanation:
There are 450 students in total
110-60=50 students are only in the choir
240-60=180 students are only in the band
60 students are in both
160 students are neither in the band nor in the choir
So the chance of being in either is (50+60+180)/450 = 29/45 ≈ 0.644
how do i find x and y?
Answer:
x=90
y=67
Step-by-step explanation:
as the line that bisects the vertical angle of isosceles triangle perpendicularly bisects the base
so x=90
and sum of all sides of triangle is 180 so
90+23+y=180
therefore,y=67
answer:
X = 90°y = 67°Solution,
We know ,
AB = AC
<B = <C
< A + <B + <C = 180° ( sum of angle in triangle)
or, 46 + y + y = 180°
or, 46 + 2y = 180°
or, 2y = 180° - 46°
or, 2y = 134
or, y = 134/2
y = 67°
The value of y is 67°
Now, In ∆ ABD
<BAD + <B + < ADB = 180°
or, 23 + 67 + X = 180°
or, 90 + X = 180
or, X = 180 - 90
X = 90°
The value of X is 90°
Hope this helps ...
Good luck on your assignment...
Which of the following terms can be combined in this expression?
Answer:
6.2y can be combined with -3/8y
PLEASE HELP ASAP !!!!!! In the diagram, ∠J ≅ ∠M and JL ≅ MR. What additional information is needed to show ΔJKL ≅ △MNR by SAS? KL ≅ NR ∠L ≅ ∠R ∠K ≅ ∠N JK ≅ MN
Answer:
D. JK ≅ MN
Step-by-step explanation:
i tookthe test
Hey, guys, I need help please give an answer and a good explanation thank you.
0.75-0.25+1/2=
Answer:
1
Step-by-step explanation:
Change 1/2 to 0.5 and then do 0.75-0.25+0.5.
Answer:
1
Step-by-step explanation:
0.75-0.25+1/2
=0.50+0.5
=0.5+0.5
=1
The mean age of 10 women in an office is 31 years old. The mean age of 3 men in an office is 20 years old. What is the mean age (nearest year) of all the people in the office?
Answer:
25.5
Step-by-step explanation:
To find the mean of all the people, do 31 plus 20 divided by 2( category of 2 means) = 51/2 = 25.5
Hope this helps
Answer: 28 years
Step-by-step explanation:
To combine the data for all the workers, multiply 31×10 the total ages of the women and 20× 3 for the total ages of the men.
Add 310+60= 370. Then divide by 13, the total number of workers. 370÷13=28.46. You can round to 28 years.
Let P be the transition matrix from B" to B', and let Q be the transition matrix from B' to B. What is the transition matrix from B to B"?
predict the number of visitors when the temp. is 102 degrees fahrenheit
Answer:
I think it would be around 350 visitors. If it says predict, your answer doesn't have to be exactly correct
Step-by-step explanation:
What is a Parallax Error(Human)?
Answer:
Please check explanation
Step-by-step explanation:
When we talk of parallax error, we are talking about one of the most important measurement errors that abounds.
It is also known as error due to parallax and might occur when measurements are taken of objects at positions which are not the correct positions.
In plain physics term, parallax error refers to the shift in apparent position of an object as a result of different viewing position
Hence what we are saying is that the error of parallax is likely to be committed when objects are viewed at incorrect positions causing an apparent shift in their actual position which thus gives rise to an incorrect observation of their real positions
the function N(t)=300/1+299e
Answer:
N(t)=300÷300e
Step-by-step explanation:
Add the 1 and the 299 together
this can ONLY be done since the problem actually looks like this in math:
N(t)= 300÷(1+299)e
Hope this helps
A hippopotamus can hold its breath for about 15 minutes. It can hold its breath 5 minutes longer than a sea otter. Use an equation to find how long a sea otter can hold its breath. A. 5 minutes B. 10 minutes C. 15 minutes D. 20 minutes
Answer:
B. 10 minutes
Step-by-step explanation:
Let x represent the number of minutes that a sea otter can hold its breath. A hippopotamus can hold its breath for 5 minutes longer than x. So, the equation would be:
x + 5 = 15
Subtract 5 from both sides.
x + 5 = 15
x + 5 - 5 = 15 - 5
x = 10
A sea otter can hold its breath for 10 minutes.
Hope that helps.
I am very confused in this question. Please Help!!!
Answer:
32
Step-by-step explanation:
A : B : C: total
2 3 4 2+3+4 = 9
Take the number of rolls received 72 and divide by 9
72/9 = 8
Multiply each number by 8
A : B : C : total
2*8 3*8 4*8 9*8
16 24 32 72
C received 32 rolls
Find the slope then the y - intercept of the line. Y = -5/2x + 3
Answer:
m = -5/2
b = 3
Step-by-step explanation:
The equation is in y = mx +b form where m is the slope and b is the y-intercept. This means that the slope is -5/2 and the y-intercept is 3.
❗️5 points❗️
Find the slope of the line.
A. -4
B. -1/4
C. 4
D. 1/4
Which of the following statements is correct? * A. If the edge of a cube is multiplied by 4, the volume of the cube is multiplied by a factor of 64. B. If the edge of a cube is multiplied by 5, the surface area of the cube is multiplied by 30. C. If the radius of a sphere is doubled, the volume of the sphere is multiplied by a factor of 4. D. If the edge of a cube is multiplied by 4, the volume of the cube is multiplied by a factor of 16.
Answer:
option A only is correct
Step-by-step explanation:
Here we want to evaluate the validity of some claims;
A. Mathematically; the volume of a cube is L^3
Now let’s multiply the length by 4 and the new length becomes 4L
The new volume would thus be (4L)^3 = 64 L^3
This is correct
B. Mathematically the area of a cube is;
6L^2. Now let’s multiply the length by 5 and the new length becomes 5L
The new volume is thus ;
6 * 5L * 5L = 150L^2 = 25(6L^2)
So this is wrong
C. Mathematically; area of a sphere is;
4/3 * pi * r^3
double the radius and the new radius becomes 2r
The volume is thus;
4/3 * pi * (2r)^3
= 4/3 * pi * 8r^3 = 32/3 * pi * r^3
We can see that the later answer is 8 times the former which makes the option wrong too
D. Volume of cube is L^3
Now let’s find the new volume at a length of 4L
(4L)^3 = 64L^3
we can see that the new is 64 times the old which makes this wrong
Which equation correctly shows how to determine the distance between the points (9, –2) and (6, 3) on a coordinate grid? d = StartRoot (6 minus 3) squared + (9 minus (negative 2)) squared EndRoot d = StartRoot (6 + 3) squared + (9 + (negative 2)) squared EndRoot d = StartRoot (6 minus 9) squared + (3 minus (negative 2)) squared EndRoot d = StartRoot (6 + 9) squared + (3 + (negative 2)) squared EndRoot
Answer:
Option 3
Step-by-step explanation:
The coordinates are (9,-2) and (6,3)
Distance Formula = [tex]\sqrt{(x2-x1)^2+(y2-y1)^2}[/tex]
D = [tex]\sqrt{(6-9)^2+(3-(-2))^2}[/tex]
Answer:
[tex]\sqrt{(6-9)^2+(3-(-2))^2}[/tex]
Step-by-step explanation:
To determine the distance between the points (9, -2) and (6, 3) on a coordinate grid, we use a formula to calculate the distance.
Distance Formula =[tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
[tex]\sqrt{(6-9)^2+(3-(-2))^2}[/tex]
[tex]\sqrt{(-3)^2+(5)^2}[/tex]
[tex]\sqrt{9+25}[/tex]
[tex]\sqrt{36} =6[/tex]
Clara would like to buy a toy for her baby sister that sells for
$12.49. How much will the toy cost after 13% tax? (Round to the nearest
cent)
Can anyone help me with this question
Answer:
Step-by-step explanation:
Like your other question, let's break it down systematically
6x + 9y - 9(6x - 3y + 8z)
Use the distributive property
6x + 9y - 9(6x - 3y + 8z)
6x + 9y - 54x - 27y + 72z
Match like terms
6x - 54x = -48x
9y - 27y = -18y
72z - 48x - 18y
Para medir la temperatura se pueden utilizar diferentes escalas, por ejemplo, la escala de grados Celsius (°C) y Fahrenheit (°F ). La relación entre estas escalas está dada por la expresión: C igual fracción numerador 5 por F menos 160 entre denominador 9 fin fracción ¿A cuántos grados Fahrenheit equivalen 62 °C?
Answer:
143.6F
Step-by-step explanation:
Entonces la ecuación establecida es;
C = [tex]\frac{5F-160}{9}[/tex]
Entonces, para resolver el Celsius, debes hacer de F el tema que hago a continuación.
[tex]C = \frac{5F - 160}{9}\\C * 9 =( \frac{5F-160}{9}) *9\\9C - 5F = 5F -160 - 5F\\9C-5F =-160 \\-5F = -160 - 9C\\\frac{-5F}{-5} = \frac{-160-9C}{-5}\\[/tex]
∴[tex]F = \frac{-160-9C}{-5}[/tex]
Ahora ingresamos los valores y resolvemos para F
F = [tex]\frac{-160 - 9(62)}{-5}[/tex]
=[tex]\frac{-160-558}{-5}[/tex]
= [tex]\frac{-718}{-5}[/tex]
= 143.6
∴ 62C = 143.6F
Choose the best estimate for the capacity of a bath tub. A. 5 ml B. 500 ml C. 50 cl D. 500 L
Answer:
D. 500 L
Step-by-step explanation:
Option D , 500 L can be used to estimate the capacity of bath Tub
What is Volume ?Volume is the space occupied by an object in three dimensional plane.
It is asked
Which among the given option is the best estimate for the capacity of a bath tub.
As the bath tub needs to contain large amount of water and so millilitre and centilitres will be very small unit.
Option D is 500 L and so can be used to estimate the capacity of bath tub
To know more about Volume
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I really need help, someone please help me
Answer:
18.84 meters.
Step-by-step explanation:
The formula for a circle is πr^2.
πr^2 = 28.26
3.14 * r^2 = 28.26
r^2 = 9
r = plus or minus 3.
But since this deals with the area of a circle, there is no way a radius can be negative. So, the radius is 3 meters.
The formula for the circumference is 2πr.
2 * 3.14 * 3 = 6 * 3.14 = 18.84.
So, the circumference of the circle is 18.84 meters.
Hope this helps!
