Answers
Related Questions
which of the following choices describe the bases of a cylinder? check all that apply.
a. discs
b. parallel
c. similar
d. congruent
Answers
Answer:
all apply
Step-by-step explanation:
All of the given descriptors apply. The bases of a cylinder are congruent parallel discs. Congruent figures are also similar.
Answer:
a,b,d
Step-by-step explanation:
WILL GIVE BRAINLIEST TO PERSON WHO ANSWERS CORRECTLY!!!!! PLEASE HELP ME!!!!!!
A specialty ice cream manufacturer collected data for the number of ice creams sold each day and the temperature on that day. The data was displayed in the following table.
Ice Creams Sold - 34, 39, 40, 36, 46, 47, 54, 27, 31, 56
Temperature (in °F) - 71.0, 73.8, 74.9, 71.4, 75.0, 76.9, 79.4, 68.6, 70.0, 81.4
What is the best interpretation of the correlation coefficient between the temperature and the number of ice creams sold?
* Because the correlation coefficient is close to -1, the ice cream sales decrease markedly with a rise in temperature.
* Because the correlation coefficient is close to 1, the ice cream sales increase markedly with a rise in temperature.
* Because the correlation coefficient is close to 1, the ice cream sales increase vaguely with a rise in temperature.
* Because the correlation coefficient is close to 0, the ice cream sales decrease vaguely with a rise in temperature.
Answers
S:[34, 39, 40, 36, 46, 47, 54, 27, 31, 56]
T:[71.0, 73.8, 74.9, 71.4, 75.0, 76.9, 79.4, 68.6, 70.0, 81.4]
n=10 = number of observations in each list.
We need the correlation coefficient ρ to select the right choice of answers.
We first calculate the mean μ and standard deviation σ of each list
[tex]\mu_s=\sum_{i=1}^{10}S_i=41.0[/tex]
[tex]\sigma^2_s=\sum_{i=1}^{10}(S_i-\mu_s)^2/n=83[/tex]
[tex]\sigma_s=\sqrt{\sigma^2_s}=\sqrt{83}=9.1104[/tex]
[tex]\mu_t=\sum_{i=1}^{10}T_i=74.24[/tex]
[tex]\sigma^2_t=\sum_{i=1}^{10}(T_i-\mu_t)^2/n=15.4524[/tex]
[tex]\sigma_t=\sqrt{\sigma^2_t}=\sqrt{15.4524}=3.9310[/tex]
We are now ready to calculate the correlation coefficient ρ :
[tex]\rho=\frac{E[(S-\mu_s)(T-\mu_t)]}{\sigma_s*\sigma_t}[/tex]
[tex]=\frac{\sum_{i=1}^{n}[(S_i-\mu_s)(T_i-\mu_t)]/n}{\sigma_s*\sigma_t}[/tex]
[tex]=\frac{\sum_{i=1}^{n}[(S_i-\mu_s)(T_i-\mu_t)]/n}{9.1104*3.9310}[/tex]
[tex]=\frac{35.27}{35.8127}[/tex]=0.9848
Because the correlation coefficient, ρ , is close to one, the ice cream sales increase markedly with a rise in temperature.
Note:
a correlation close to 1 means both increase (or decrease)
a correlation close to -1 means one increases while the other decreases
correlation close to 0 means one does not quite affect the other.
if you pay $26.50 for an item, including 6% sales tax, what was the original price?
Answers
26.5/1.06 = 25.00 dollars. You can check this by figuring out the sales tax separately
25 * (6/100) = 1.50
If you add 1.50 to 25 dollars, you get 26.5 just as you should.
There are 8 runners in a race.
The 4 fastest runners will win trophies.
Halfway through the race, 2 of the
runners drop out of the race. What
fraction of the remaining runners will win
a trophy?
Answers
Halfway, 2 dropped out, remaining 8 - 2 = 6 runners
4 fastest runners win
Fraction = 4/6 = 2/3
There are 6 runners left, and 4 will win a trophy. 4/6 simplifies to 2/3
what is the lateral area of the cone? base 10 yd height 12.1 yd
a. 242.6 yd2
b. 190.07 yd2
c. 603.19 yd2
d. 96.4 yd2
Please help me get this answer correct ! asap
Answers
L= r x [tex] \pi [/tex] x l
where: L = Lateral area
l = length or height
r = radius
[tex] \pi [/tex] = 3.1416
Now sorting out your given:
base = 10 yd
Height = 12.1 yd
To work out the lateral area, you will need the radius. Your base 10 yd, is the measure from one side to the other of the circle base, this is what you call diameter. What you need is radius, which is the measure of a circle from the middle of the circle to the outside, so it is half of a diameter.
So to get radius (r), divide the base by 2.
r = 10yd/2 = 5yd
Now that you have all that you need just input it into your formula:
L = r x [tex] \pi [/tex] x l
= 5 yd x [tex] \pi [/tex] x 12.1 yd
= 190.07 yd[tex] ^{2} [/tex]
So your answer is B.
base=10 yd-----------------> r=5 yd
lateral area=pi*r*h--> pi*5*12.1= 190.07 yd²
the answer is option b. 190.07 yd2
helppppppppppppppppppppppppppppppppp
Answers
The third choice is the correct one
Explanation:
Square root means that what is under the root has power of 1/2
8 = 4 * 2
Therefore:
√8 = √4 * √2 = 2√2
The given expression:
(8 * x^7 * y*8)^1/2 = (8)^1/2 * (x^7)^1/2 * (y^8)^1/2
= 2√2 * x^7/2 * y^4
= 2√2 * x^3 * y^4 * √x
= 2* x^3 * y^4 √2x
Hope this helps :)
How much will it cost to mail a first-class letter that weighs 3.7 oz? The rate is $.22 for the first ounce and $.17 for each additional ounce or fraction of an ounce. a. $.81 b. $.73 c. $.63 d. $.07
Answers
3.7 ounces minus the first ounce = 2.7 ounces
2.7 ounces x $.17/ounce = $0.459 = $0.46
$0.46 (the rate for 2.7 ounces + $0.22 (the rate for the first ounce) = $0.68
What are the slope and the y-intercept of the linear function that is represented by the graph?
Answers
The y-intercept is the point where the line cuts the y-axis, hence the y-intercept is (0,3)
Slope and intercept of a lineThe formula for calculating slope of a line is expressed as:
Slope = y2-y1/x2-x1
Using the coordinate points (0, 3) and (4, 0)
Slope = 0-3/4-0
Slope = -3/4
Since the y-intercept is the point where the line cuts the y-axis, hence the y-intercept is (0,3)
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which expression represents the volume of the box?
use the formula v=lwh.
please help....
Answers
V=lwh
V is the volumen of the box.
l is the length of the box.
w is the widht of the box.
2. When you substitute the values shown in the figure attached, into the formula V=lwh, you obtain:
V=(2x-1)(x+2)(3x+1)
3. You must apply the "Distributive property". Then, you have:
V=6x³+11x²-3x-2
Which expression represents the volume of the box?
The second expression, which is: 6x³+11x²-3x-2
What is the definition of a circle?
A circle is a set of all points that are the same distance form a fixed point called the center.
A circle is the set of all points in a plane that are the same distance from a fixed point called the center.
A circle is the distance from a set of points to a fixed point called the center.
A circle is the set of all points in a plane that are a given distance from a given line.
Answers
Answer:
A circle is the set of all points in a plane that are the same distance from a fixed point called the center.
Step-by-step explanation:
see picture
Circle can be defined as a set of all points in a plane that are the same distance from a fixed point called the center.
What is a circle?A circle has defined the set of all points in a plane that are the same distance from a fixed point called the center. The circle is a 2D shape.
In geometry, the circle is defined as the closed 2-dimensional curved shape. The distance from between the center of the circle to any point on the circle is known as the radius of the circle.
As we have discussed the definition of a circle, therefore, the correct option is 'A circle is the set of all points in a plane that are the same distance from a fixed point called the center.'
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Carly has 5 times as many markers as camden.Toegether they have 30 markers.How many markers does Carly have? How many markers does Camden have
Answers
5x6=30
Answer:
number of markers Camden has = [tex]5[/tex]
number of markers Carly has = [tex] 25[/tex]
Step-by-step explanation:
Let the number of markers Camden has = x
now it is given that Carly has 5 times as many markers as Camden has
Number of markers Carly has = 5 ( number of markers Camden has )
= [tex]5x[/tex]
now the total number of markers = 30
number of markers with Carly + number of markers with Camden = 30
so we have
[tex]5x+x = 30[/tex]
[tex]6x =30[/tex] ( adding like terms x and 5x)
[tex]x=\frac{30}{6}[/tex] ( dividing both sides by 6)
[tex]x= 5[/tex]
hence we have
number of markers Camden has = [tex]x=5[/tex]
number of markers Carly has = [tex]5x= 5(5) = 25[/tex]
A rectangle is 25 inches long and 13 inches wide. What is the area of the rectangle? Enter your answer in the box as a fraction in simplest form
Answers
25*13=325
The area of the rectangle is 325 sqr inches.
Choose the correct simplification of the expression a to the 7th power times b to the 8th power all over a to the 4th power times b to the 4th power
Answers
(a^7b^8)/(a^4b^4)
According to the rules of indices, when you divide numbers with the same base, it's the same as subtracting their powers. Hence we shall have:
(a^7b^8)/(a^4b^4)
=(a^(7-4))(b^(8-4))
=a^3b^4
the answer is a^3b^4
Janet has a square-shaped sheet of wrapping paper. To cover the top of a box, she cuts off 11 centimeters of the sheet along the width. The new area of the sheet is given by the expression below, where x represents the length, in centimeters, of the sheet of wrapping paper before being cut.
x^2-11x
Which statement best describes the term 11x?
the area cut from the sheet of wrapping paper
the area of the sheet of wrapping paper after being cut
the area of the sheet of wrapping paper before being cut
the width of the sheet of wrapping paper after being cut
Answers
The expression she has, x² - 11x, represents the area of the sheet of wrapping paper after she's cut it.
Answer:
The correct option is 1. It means 11x is the area cut from the sheet of wrapping paper.
Step-by-step explanation:
The shape of sheet is square.
Let x represents the length, in centimeters, of the sheet of wrapping paper before being cut.
The area of a square is
[tex]A=a\times a[/tex]
Where, a is side length.
The area of sheet before being cut is
[tex]A=x\times x=x^2[/tex]
The width of the piece cut from the sheet is 11 and length is x. So, the area of piece is
[tex]A=x\times 11=11x[/tex]
The remaining area of sheet is
[tex]A=\text{Area of sheet}-\text{Area of piece cut from the sheet}[/tex]
[tex]A=x^2-11x[/tex]
Therefore correct option is 1. It means 11x is the area cut from the sheet of wrapping paper.
The graph below shows the height of a kicked soccer ball f(x), in feet, depending on the distance from the kicker x, in feet: Part A: What do the x-intercepts and maximum value of the graph represent? What are the intervals where the function is increasing and decreasing, and what do they represent about the distance and height? (6 points) Part B: What is an approximate average rate of change of the graph from x = 22 to x = 26, and what does this rate represent? (4 points
Answers
the complete question in the attached figure
part A
the x intercept 0 is the point where the ball was hit, the x intercept 20 is the point where the ball fell back to the ground, 20 feet away from the kicker.
the function is increasing in the interval x∈(0, 10) and decreasing in x∈(10, 20)
this means that the height is increasing in the interval (0, 10) and decreasing as x goes through the interval (10,20)
the distance from the kicker is increasing during the whole interval (0, 20)
part B
the rate of change represents the slope of the secant line from A to B. It approximates the rate at which f(x) decreases or increases in the interval
x =[A, B]
Judi is 9 years older than Baz.Baz is twice as old as Caleb.All their ages add up to 64.What are their ages?
Answers
Baz is 22
Caleb is 11
Caleb is 11 years old, Baz is 22 years old, and Judi is 31 years old, which adds up to 64 years in total.
If Caleb's age is C, then Baz, being twice as old, is 2C. Judi is 9 years older than Baz, so her age is 2C + 9.
C + 2C + 2C + 9 = 64
5C + 9 = 64
Subtracting 9 from both sides gives:
5C = 55
C= 11
Special-effects artists often use scale models.the actual height of a velociraptor is estimated to have been approximately 2 ft.an artist draws the dinosaur with a height of 4 in. on paper.
a. what would be an appropriate scale for a model of the velociraptor?
b. the same scale is used for a model of a tyrannosaurus, whose actual height was 16 ft.what is the height of the model?
Answers
part A)
[scale]=[model height]/[actual height]
[scale]=[4 in]/[2 ft]=2 in/ft
that means
(2 in) in the model is -------------> (1 ft) in the actual
part B)
[actual height]=16 ft [model height]=? [scale]=2 in/ft
[scale]=[model]/[actual height]
[model height]=[scale]*[actual height]
[model height]=[2]*[16]=32 in
the answer part B) is 32 in
helppppppppppppppppppppppppppppppppppp
Answers
-16 + 37i
Explanation:
Note that i^2 = -1
(4+7i)(3+4i) = 4*3 + 4*4i + 7i*3 + 7i*4i
= 12 + 16i + 21i + 28i^2
= 12 + 37i + 28(-1)
= 12 + 37i - 28
= -16 + 37i
Hope this helps :)
Every cereal box has a gift inside, but you cannot tell from the outside what the gift is. the store manager assures you that 13 of the 47 boxes on the shelf have the secret decoder ring. the other 34 boxes on the shelf have a different gift inside. if you randomly select two boxes of cereal from the shelf to purchase, what is the probability that both of them have the secret decoder ring?
Answers
The probability that both selected boxes have the secret decoder ring is approximately 7.20%
Explanation:To find the probability that both selected boxes have the secret decoder ring, we can use the concept of independent events. Since the boxes are randomly selected, the probability of selecting a box with the secret decoder ring is 13/47 for the first box. After selecting the first box, there will be 12 boxes with the secret decoder ring left out of 46 total boxes. So, the probability of selecting a second box with the secret decoder ring is 12/46. To find the probability of both events occurring, we multiply the probabilities: (13/47) * (12/46) = 156/2162 ≈ 0.07197 or about 7.20%
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Select the correct product. ( a + 8)( b + 3)
ab + 8 a + 3 b + 24
ab + 3 a + 8 b + 24
11 ab
24 ab
Answers
ab + 3a + 8b + 24
i hope this helps :)
Answer:
ab + 3 a + 8 b + 24
Step-by-step explanation:
just did this question
If two sets are negatively correlated, as the values in one of the sets increase, the values in the other set tend to
decrease
stay the same
increase
Answers
If two sets are negatively correlated, as the values in one of the sets increase, the values in the other set tend to decrease.
What is the correlation of the sets?For a message to be processed by a certain orchestration, a correlation set specifies a collection of qualities and values for these properties. A maximum of three parameters are supported by each correlation set.
If two sets are negatively correlated, as the values in one of the sets increase, the values in the other set tend to decrease.
This means that there is an inverse relationship between the two sets, such that when one variable increases, the other variable tends to decrease.
This type of correlation is often expressed by a negative correlation coefficient,
which ranges from -1 to 0, with -1 indicating a perfect negative correlation.
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WILL GIVE BRAINLIEST!!! PLEASE HELP!!! 11 POINTS!!!
Given that a function, f(x), has a domain of -70 ≤ x ≤ -15 and a range of 30 ≤ f(x) ≤ 110 and that f(-60) = 80 and f(-17) = 40, select the statement that could be true for f(x).
* f(-10) = 25
* f(-60) = 95
* f(40) = -55
* f(-65) = 90
Answers
Answer:
Step-by-step explanation:
[tex]slope=\frac{40-80}{-17+60} =-\frac{40}{43}\\f(x)-80=-\frac{40}{43}(x+60)\\\\x=40\\f(x)=-\frac{40}{43}*100+80 \approx -93+80=-13\\x=-65\\f(-65)=-\frac{40}{43}*(-15)+80 \approx 14+80=94[/tex]
How can you find the number of inches in 1 mile, show your work.
Answers
1 foot=12 inches
63360 is the correct answer
The value of number of inches in 1 mile is,
⇒ 15,096 inches
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Given that;
To find the number of inches in 1 mile.
Since, We know that;
1 mile = 1258 foot
And, 1 foot = 12 inches
Thus, The value of number of inches in 1 mile is,
⇒ 1258 x 12
⇒ 15,096 inches
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Match term with the definition
__A) shape created when a right triangle is rotated about the y-axis
__B) shape created when a rectangle is rotated about the y-axis
__C) perpendicular cross section of a cylinder
__D) parallel cross section of a sphere
__E) perpendicular cross section of a pyramid
Triangle
Rectangle
Circle
Cylinder
Cone
Answers
I got A,B,E,D,C
Correct me if im wrong
It may be wrong.
A rectangular prism has a length of 312 inches, a width of 5 inches, and a height of 112 inches. What is the volume of the prism? Enter your answer as a simplified mixed number or a decimal
Answers
The volume of a rectangular prism is:
[tex]V=l*w*h[/tex]
Where
l=lenght,
w=width
h=height
So, as this prism has a length of 312 inches, a width of 5 inches, and a height of 112 inches, the volume is calculated as follows:
[tex]V=l*w*h=312 in*5 in*112 in=174 720 inches^3[/tex]
Select the correct answer. What is the LCM of the numbers 3, 6, and 9? 9 18 36 54
Answers
Answer:
18
Step-by-step explanation:
3 times 5
6 times 2
9 times 2
all 18
Jessica has $4 left in her pocket. She spent $7 on a ticket to a baseball game, $2 on a hot dog, and $11 on a hat. How much money did she have at the beginning of the day?
Answers
4 + 7 + 2 + 11 = 24
Jessica had $24 at the beginning of the day.
Answer:
Money Jessica had at the beginning of the day was:
$24
Step-by-step explanation:
Let Jessica had $x in the beginning of the day.
She spent $7 on a ticket to a baseball game, $2 on a hot dog, and $11 on a hat and left with $4
⇒ x=7+2+11+4
⇒ x=24
Hence, money Jessica had at the beginning of the day was:
$24
If s = 1 over 3 unit and A = 54s2, what is the value of A, in square units? ____ square units. (Input whole number only.)
Answers
Jake carries a green and yellow and a black guitar pick in his pocket he randomly chooses a guitar pick from his pocket before every concert what is the probability will he select the same color pic for two concert in a row?
Answers
Answer:
[tex]\bf\textbf{The required probability = }\frac{4}{9}[/tex]
Step-by-step explanation:
The total number of ways that he can pick a pic are 3 × 3 × 3 = 27 ways
If Jake selects the black pic in the first concert, then number of ways of success are :
B B G
B B Y
B G G
B Y Y
Total number of success = 4
If Jake selects the green pic in the first concert, then number of ways of success are :
G G B
G G Y
G B B
G Y Y
Total number of success = 4
If Jake selects the yellow pic in the first concert, then number of ways of success are :
Y Y B
Y Y G
Y B B
Y G G
Total number of success = 4
Therefore, in all the three cases total number of successes are :
4 + 4 + 4 = 12
[tex]Probability = \frac{\text{Number of successful ways}}{\text{Total number of ways}}\\\\\implies Probability = \frac{12}{27}=\frac{4}{9}[/tex]
[tex]\bf\textbf{Hence, The required probability = }\frac{4}{9}[/tex]
Answer:
For the people coming for the iready question answer, the answer is 1/3 lol
Step-by-step explanation:
Ellen is drawing two polygons. One of tue polygons has 3 more angles than the other. What shapes could she be drawing?
Answers
Polygon- A shape with at least three straight sides.
Triangle and a Hexagon is what I recommend
Hope this helps:D
Have a great rest of a brainly day!
"AB84"
Answer:
Pentagon and an OCTAGON
Step-by-step explanation:
Polygons are are plane figures with three or more sides. Since plane figures with 3sides are triangles and those with 4sides are quadrilaterals, I will take a plane figure of 5sides as one of the two polygons Ellen is drawing
A plane figure with 5sides and 5angles is a PENTAGON
If one of the polygons has 3 more angles than the other, then the other polygon she is drawing was a polygon with (5+3) i.e 8sides and 8angles. This polygon is known as an OCTAGON
Based on the conclusion, the shape Ellen could be drawing is a PENTAGON and an OCTAGON