Answer:
The way the sample was chosen may overrepresent or underrepresent students taking certain language classes.
Step-by-step explanation:
Answer options:
The sample size is not large enough to represent the population.
No. Sample size is quite small per language.The sample was not chosen at random.
No. There is no evidence if samples are not random.The way the sample was chosen may overrepresent or underrepresent students taking certain language classes.
Yes. Some of the classes my have large, some may have small population. Therefore taking 10 samples from each language is not right proportion and proper representation.The way the sample was chosen does not sample students from each different language class.
No. Each language class is considered.Answer:
C
Step-by-step explanation:
The way the sample was chosen may overrepresent or underrepresent students taking certain language classes.
The ratio 36:60 is equivalent to what other ratios? ( list at least 2)
b) make the ratio 36:60 equivalent to _:50 ( show proof)
Answer:
1.) 12:20
6:10
2.) 30:50
6*5=30 and 10*5=50
(6:5 is the proportional relationship)
Step-by-step explanation:
Part A: Since the base numbers are 6:5, you can multiply any number like 5 on both sides. They only have to be the same number.
Part B: Divide the numbers until you cannot any more. I divided them both by 6.
Find the volume of a rectangular prism that is 16 cm in length, 12 cm in height, and 10 cm in width.
What is the image of (-1,-6) after a reflection over the y-axis?
Answer:
your answer is (1,-6)
Step-by-step explanation:
when a point is reflected in y-axis, then the y-co-ordinate remains same and then x-co-ordinate becomes the opposite of that number.
When you reflect a point across the y-axis, only the x-coordinate changes while the y-coordinate stays the same. For example:
(-x, -y) -> (x, -y)
So:
(-1, -6) -> (1, -6)
Best of Luck!
Easy Question, Easy Points
Topic: Volume
Answer:
a 125600 cm^3
b 327910.2 m^3
Step-by-step explanation:
The volume of a cylinder is given by
V = pi r^2 h
a = 3.14 (20)^2 100
=125600 cm^3
b We know the diameter r =d/2 = 118/2 =59
V = pi r^2 h
3.14 (59)^2 *30
327910.2 m^3
Answer:
1) 125,600 cm³
2) 327,910.2 m³
Step-by-step explanation:
Volume of cylinder: pi × r² × h
1) 3.14 × 20² × 100
125,600 cm³
2) 3.14 × (118/2)² × 30
327,910.2 m²
From the top of a lighthouse 55 feet above sea level, the angle of depression to a small boat is 11.3*. How far is the boat from the base of the lighthouse? *
Answer:
275.248 ft
Step-by-step explanation:
this is a trigonometry question, so we first draw a triangle with height 55 and angles 11.3 (degrees) and 78.7 (degrees). tan(11.3)=55/base, so the base would be 275.248 ft.
How long would it take for a snail (average speed of 0.029) to travel 2,800 miles ?
Answer:
5 days 12 hours = 7920 minutes. x = 5280 feet = 1 mile.
Step-by-step explanation:
Answer:
answer is 5 days and 12 hours
Step-by-step explanation:
hope we can be friends
can i please get brainliest
Multiply 2/3 by 42, and then multiply that product by 10
Answer:
140 is the answer
Step-by-step explanation:
2/3 of 42 is 14 multiplied by ten is 140
Hope this helps ;)
Answer:
280
Step-by-step explanation:
the largest number which divides 60 and 75 leaving remainders 8 and 10 respectively is
Final answer:
To find the largest number that divides 60 and 75 and leaves remainders of 8 and 10 respectively, the GCD (greatest common divisor) can be used. The GCD between 60 and 8 is 4, and the GCD between 75 and 10 is 5. Thus, the largest number that satisfies the conditions is 4.
Explanation:
To find the largest number that divides 60 and 75 and leaves remainders of 8 and 10 respectively, we can use the concept of the greatest common divisor (GCD). The GCD is the largest number that divides two or more numbers without leaving a remainder. To find the GCD, we can use the Euclidean algorithm.
First, we divide 60 by 8. The quotient is 7 and the remainder is 4. Then, we divide 8 by 4. The quotient is 2 and the remainder is 0. Since the remainder is 0, we stop here. Therefore, the GCD of 60 and 8 is 4.
Next, we divide 75 by 10. The quotient is 7 and the remainder is 5. Then, we divide 10 by 5. The quotient is 2 and the remainder is 0. Again, since the remainder is 0, we stop here. Therefore, the GCD of 75 and 10 is 5.
Therefore, the largest number that divides 60 and 75 and leaves remainders of 8 and 10 respectively is 4.
Hudson is blocking off several rooms in a hotel for guests coming to his wedding. The hotel can reserve small rooms that can hold 3 people, and large rooms that can hold 6 people. Hudson booked a total of 19 rooms which can accommodate 87 guests altogether. Write a system of equations that could be used to determine the number of small rooms reserved and the number of large rooms reserved. Define the variables that you use to write the system.
Answer:
Our system is : S + L = 19, and 3S + 6L = 87
Let # of small rooms = S
# of Large rooms = L
10 Large rooms and 9 Small rooms
Step-by-step explanation:
Let # of small rooms = S
# of Large rooms = L
S + L = 19
3*S + 6*L = 87
Our system is : S + L = 19, and 3S + 6L = 87
solve.
S = 19 - L
3*(19 - L) + 6L = 87
57 - 3L + 6L = 87
57 + 3L = 87
3L = 30
L = 10
S = 19 - 10 = 9
Answer:
Step-by-step explanation:
Let the number of smaller rooms be x
Total rooms are 19. So, number of larger rooms = 19 - x
Total guests = 87
3x + (19-x)6 = 87
Please write the answer
x cube + x cube = ?
Answer:
[tex] {2x}^{3} [/tex]
Step-by-step explanation:
[tex] {x}^{3} + {x}^{3} = {2x}^{3} [/tex]
Answer:
[tex]2x^{3}[/tex]
Explain.
log2x = log2(3x + 5) + 4
It’s no solution but I need to explain how
The sum of three consecutive numbers is greater than 40. The inequality that represents this is x + x + 1 + x + 2 > 40. Which values of x hold true for the inequality?
Answer:
All integers greater than 12 (13 onwards) satisfy the inequality
Step-by-step explanation:
x + x + 1 + x + 2 > 40.
3x + 3 > 40
3x > 37
x > 12.3333
All integers greater than 12 (13 onwards) satisfy the inequality
Ross has a spinner that is split into eight equal sections numbered 1 through 8. He spun the spinner 1,104 times. Which of the following would be a good estimate of the number of times the spinner landed on number 6?
A.
291
B.
117
C.
209
D.
127
Answer:
D. 127
Step-by-step explanation:
Because our spinner is split up evenly 8 ways, we a have a 1/8th chance of getting 6 with any given spin. We will want to pick the number that is the closest to one 1/8th of 1104 from our options at the right.
Let's check them one by one. Note that 1/8 as a decimal is .125, if you are using a calculator to do this problem, decimals will be fastest and we'll work with those here.
A) 291/1104 = .264
B) 117/1104 = .106
C) 209/1104 = .189
D) 127/ 1104 = .115
Our closest number to .125 (ie, 1/8th) is .115. or 127 out of 1,104 spins.
Answer:
D, 127
Step-by-step explanation:
it would be d because if the spinners each have equal spots then you can divide it by 8. which gets you 138, but that isn't an option and its probability so its always around a number. so the closest one is 127 or D
what is 1/3 + 14 =26
Answer:
False
Step-by-step explanation:
In a game of luck, a turn consists of a player rolling 12 fair 6-sided dice. Let X = the number of dice that
land showing "l"in a turn.
Find the mean and standard deviation of X.
You may round your answers to the nearest tenth.
Answer:
The mean of X, μₓ is 2
The standard deviation of X, σₓ is 1.3
Step-by-step explanation:
Here we have the expected value given by the following relation
Expected value = P(x) × n
Where:
P(x) = Probability that the event occurs
n = Number of times the event occurs
The probability of the dice showing 1 = 1/6
The number dice rolled = 12
Therefore, out of 12, the expected number of dice that show 1 in a turn = 12×1/6 = 2
The proportion, p of dice that show 1 = 1/6, hence the mean, μx = np
Standard deviation of a proportion, [tex]\sigma _x =\sqrt{np{(1 - p)} }[/tex]
Where:
p = 1/6
n = 12
Hence;
μx = 12 × 1/6 = 2
[tex]\sigma _x =\sqrt{np{(1 - p)} } = \sqrt{12 \times \frac{1}{6} (1 - \frac{1}{6}) } = \sqrt{\frac{5}{3} } = 1.29099 \approx 1.3 \ to \ the \ nearest \ tenth[/tex]
Hence the mean and standard deviation of X are presented as follows;
The mean of X, μₓ = 2
The standard deviation of X, σₓ = 1.3.
apply the distributive property to create an equivalent expression to 6(a+2b+3c)
Answer:
6a+12b+18c
Step-by-step explanation:
Multiply 6 with the numbers inside the parentheses.
Solve the equation. 5x + 8 − 3x = −10 x = −9 x = −1 x = 1 x = 9
Answer:
[tex]x=-9[/tex]
Step-by-step explanation:
[tex]5x+8-3x=-10[/tex]
Simplify to get [tex]2x+8=-10[/tex]
Find what [tex]2x[/tex] equals to by taking away 8, [tex]2x = -18[/tex].
Divide by 2 to find x, [tex]x = -9[/tex]
Answer:
X = -9
Step-by-step explanation:
The Zamoras rent a storage room that is 10 feet wide, 12 feet long, and
8 feet high. How many cube-shaped boxes 1 foot on each edge can the
Zamoras store in the room?
Answer:
960 cubes
Step-by-step explanation:
To find how many cubes of side 1 foot can be contained in the room, we have to find the volume of the storage room and then, divide by the volume of the cube.
The storage room is in the shape of a rectangular prism, hence, its volume is:
[tex]V = L * W * H[/tex]
where L = length
W = width
H = height
The dimensions of the storage room are:
10 feet wide, 12 feet long, and 8 feet high
Hence, its volume is:
[tex]V = 10 * 12 * 8 = 960 ft^3[/tex]
The volume of the cube of side 1 foot is:
[tex]V = S^3\\\\V = 1^3 = 1 ft^3[/tex]
Hence, the number of cubes that can be contained in the storage room is:
960 / 1 = 960 cubes
960 cubes can be stored in the storage room.
Which statement is true about the effect of the 2-page introduction chapter?
The outlier of 2 increases the median page count.
The outlier of 2 increases the mean page count.
The outlier of 2 decreases the median page count.
The outlier of 2 decreases the mean page count.
Answer:
D
Step-by-step explanation:
The outlier of 2 decreases the mean page count.
What is Mean?The sum of all values divided by the total number of values determines the mean (also known as the arithmetic mean, which differs from the geometric mean) of a dataset. The term "average" is frequently used to describe this measure of central tendency.
If the outlier is included in the calculation of the median and mean, then it will affect the measures of central tendency.
However, if the outlier is excluded from the calculation, then it will not affect the measures of central tendency.
If the 2-page introduction chapter is an outlier on the higher side of the distribution, the outlier of 2 increases the mean page count more than the median page count.
If the 2-page introduction chapter is an outlier on the lower side of the distribution, the outlier of 2 decreases the mean page count more than the median page count.
therefore, The outlier of 2 decreases the mean page count.
Learn more about Mean here:
https://brainly.com/question/521501
#SPJ7
Complete question:
Can someone please help me with this problem?
Answer:
f'(1) = 2
Step-by-step explanation:
f(x) = 2x^2 -2x +3
Take the derivative
f'(x) = 2 * 2x - 2 * 1
f'(x) = 4x -2
f'(1) = 4(1) -2
=4-2
=2
To find the area of the regular hexagon, a classmate uses 12m for the perimeter. What is your classmates error?
Answer:
Required was area, they provided the perimeter
Area = 6sqrt(3) m²
Step-by-step explanation:
Perimeter = 6s
6s = 12
s = 12/6 = 2m
Area = 3sqrt(3)/2 × 2²
Area = 6sqrt(3) m²
sqrt: square root
Solve a triangle when A = 27.3°, B = 55.9°, and a = 8.6.
Answer:
The correct answer is A.
Step-by-step explanation:
i just did the test on edge and got it right, it’s not D, it’s A.
Answer:
A=
Step-by-step explanation:
jo triangles.
The base of the rectangle is 7 inches, and the height is
6 inches.
The area of one triangle is
square inches.
13
21
42
84
Answer:
21
Step-by-step explanation:
Area = 1/2 (Base x Height)
Area = 1/2 (7 x 6)
Area = 1/2 (42)
Area = 21
Answer:
Answer is B.21
Step-by-step explanation:
Solve the quadratic equation: -x^2+8x=7
Answer:
Step-by-step explanation:
To solve the quadratic equation [tex]-x^2 + 8x = 7[/tex], we first convert it to standard form and identify the coefficients. Using the quadratic formula, we find the solutions to be x = -1 and x = 7.
To solve the given quadratic equation, [tex]-x^2 + 8x = 7[/tex], we first need to bring the equation to the standard form of a quadratic equation, which is [tex]ax^2 + bx + c = 0[/tex]. We can do this by subtracting 7 from both sides, resulting in [tex]-x^2 + 8x - 7 = 0[/tex].
Now the equation is in standard form, we identify the coefficients: a = -1, b = 8, and c = -7. Applying these to the quadratic formula, x = [-b ± [tex]\sqrt(b^2 - 4ac)[/tex]] / (2a), we get:
x = [-8 ± [tex]\sqrt((8)^2[/tex] - 4(-1)(-7))] / [2(-1)]
x = [-8 ± [tex]\sqrt(64 - 28)[/tex]] / -2
x = [-8 ± [tex]\sqrt(36)[/tex]] / -2
x = [-8 ± 6] / -2
Now, solving for x, we get two solutions:
x = (-8 + 6) / -2 = -1
x = (-8 - 6) / -2 = 7
Therefore, the solutions to the quadratic equation are x = -1 and x = 7.
Which values are within the range of the piecewise-defined function? f(x) = StartLayout enlarged left-brace 1st Row 1st column 2 x + 2, 2nd column x less-than negative 3 2nd row 1st column x, 2nd column x greater-than negative 3 3rd Row 1st column negative x minus 2, 2nd column x greater-than negative 3 EndLayout y = –6 y = –4 y = –3 y = 0 y = 1 y = 3
Answer:
the answer is below frum ed
Step-by-step explanation:
y= -6
Y= -4
Y= -3
Y= 0
Linda shoots an arrow at a target in an archery competition. The arc of the arrow can be modeled by the equation y = −0.02x2 + 0.65x + 4, where x is the horizontal distance (in meters) from Linda and y is the height (in meters) of the arrow. How far from Linda does the arrow hit the ground? Round to the nearest tenth.
Answer:
Linda was 37.8 m away when the arrow hit the ground
Step-by-step explanation:
We are given that The arc of the arrow can be modeled by the equation :
[tex]y = -0.02x^2 + 0.65x + 4[/tex]
Where x is the horizontal distance (in meters) from Linda
y is the height (in meters) of the arrow.
Now we are supposed to find How far from Linda does the arrow hit the ground
So, y must be 0 when the arrow hits the ground
So, Substitute y = 0 in the equation :
[tex]y = -0.02x^2 + 0.65x + 4\\0 = -0.02x^2 + 0.65x + 4\\0.02x^2-0.65x-4=0\\0.02(x-37.79)(x+5.29)=0\\x=37.79,-5.29[/tex]
Since distance cannot be negative
So,Linda was 37.8 m away when the arrow hit the ground
If x =-4 and y= 3 , what is the value of x - 3y^2 ?
A. -13
B. -23
C. -31
D. -85
Answer:
-31
Step-by-step explanation:
= x - 3y^2
= -4 - 3 × 3^2
= -4 - 27
= -31
hope it helps!
what is the slope of a line that goes through the points (3, -2) and (2, 3)
Answer:
-5
Step-by-step explanation:
To find the slope between two points we use
m = (y2-y1)/(x2-x1)
= (3 - -2)/(2 - 3)
= (3+2)/(2-3)
= 5/ -1
- 5
Answer:
M=-5
Step-by-step explanation:
y2-y1 over x2-x1
3+2 divided by 2-3
5/-1
-5
Can somebody help me I have not been paying attention
Answer:
The answer is D.
Step-by-step explanation:
It have 5 different surface. I will name them as front, back, left, right and down. It's easier for you to see.
Front: 36*50= 1800
Back: 14*36=504
Left: 14*48/2=336
Right:14*48/2=336
Down:36*48=1728
Then, we add everything together and get the answer.
1800+504+336+336+1728=4702.
FP!!!!!!!!!!!!
(10 x 5 ) + 50 =
read comment plz
Answer:
(10 x 5) + 50 =
(50) + 50 = 100
Step-by-step explanation:
1. do parenthesis first
2. add them together
Answer:
(10*5)+50
50+50=100
Step-by-step explanation:
Hope I helped