Answer:
B. F,G,H
Step-by-step explanation:
Once a month, volunteers from the Green Sea Club clean up litter at the beach. Last month, the volunteers picked up 8 pounds of trash in 4 hours. This month, the same group of volunteers will spend 3 hours picking up trash.
If they pick up trash at the same rate, how many pounds of trash should the volunteers pick up this month?
Answer:
Step-by-step explanation:
8 pounds.... 4hours
x pounds.... 3 hours
x=3 ×8 :4
x=24 :4
x=6 pounds of trash
The number of pounds of trash should the volunteers pick up this month is 6.
Calculation of the number of pounds:Since Last month, the volunteers picked up 8 pounds of trash in 4 hours. This month, the same group of volunteers will spend 3 hours picking up trash.
So here we can do
x=3 ×8 :4
x=24 :4
x=6
Hence, The number of pounds of trash should the volunteers pick up this month is 6.
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Explain well and I’ll mark brainliest
The mean of 79, 76, 55, 20, 14, 68, 30, 29, and is 52. Calculate the missing
value.
Answer:
Step-by-step explanation:
The mean of an equation is the average of it. For example, if I take 3, 4, and 5 and I want to find the average of it, I would add them up (12) and then divide by 3, because there are 3 terms. So the mean of 3, 4, and 5 is 4. Now in your equation, you must find another number. 79, 76, 55, 20, 14, 68, 30, 29 added up is 371. Now, because there are 8 terms, I would divide 371/8. 371/8=46.38.
I am not done. I must find the missing value. I am going to use the process of elimination to solve. I hav etried all numbers in my calcualtor that equal a high number, and then got 468. I then divided 468 with a 97 and got 52. 52 is the Missing value.
Focus groups are not appropriate for generating statistics and making scientific generalizations. Select one: True False
Focus groups are not appropriate for generating statistics and making scientific generalizations.
The given statement is True.
Focus groups are qualitative research methods used to gather in-depth insights and subjective opinions from a small group of participants.
They typically involve a moderator guiding a discussion among a selected group of individuals to explore their perspectives, attitudes, and experiences on a specific topic.
The main objective of focus groups is to obtain rich, contextual information rather than to produce statistical data.
Focus groups usually consist of a small number of participants, typically ranging from 6 to 12 individuals, which makes it difficult to achieve statistical significance or representativeness.
The participants are not randomly selected, but rather purposively chosen based on specific criteria relevant to the research focus.
While focus groups offer valuable qualitative insights, they are not designed to generate statistically reliable data or make generalizations to a larger population.
The results obtained from focus groups are specific to the participants involved and their unique perspectives.
Therefore, it is not appropriate to use focus group findings as a basis for making scientific generalizations or drawing statistically significant conclusions about a broader population.
To make scientific generalizations and produce statistical data, researchers typically employ quantitative research methods, such as surveys or experiments, with larger and more diverse samples that allow for statistical analysis and inference.
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find the value of x
(6x-3)°
Answer:
x = 1/2
Step-by-step explanation:
6x-3= 0 (add 3 to both sides)
+3 +3
6x=3 (divide by 6 to isolate x)
/6 /6
3/6= 1/2 (simplify)
x=1/2
Zahir made this wooden perch for his pet bird. What is the volume of the bird perch? Round to the nearest tenth if necessary.
Answer:
675
Step-by-step explanation:
Set A consists of all positive integers less than 100; Set B consists of 10 integers, the first four of which are 2, 3, 5, and 7. What is the difference between the median of Set A and the range of Set B?
(1) All numbers in Set B are prime numbers;
(2) Each element in Set B is divisible by exactly two factors;
Regardless of whether statement (1) or statement (2) is true, the difference between the median of Set A and the range of Set B is 44.5.
To answer the question, let's consider each statement separately:
(1) All numbers in Set B are prime numbers:
Since the first four numbers in Set B are 2, 3, 5, and 7, which are all prime numbers, we can conclude that all numbers in Set B are prime numbers.
For Set A, we know that it consists of all positive integers less than 100. The median of Set A would be the middle value when the numbers are arranged in ascending order. Since the set consists of consecutive integers, the median would be the average of the two middle numbers. In this case, the two middle numbers are 49 and 50, so the median would be (49 + 50) / 2 = 49.5.
The range of Set B is the difference between the largest and smallest values in the set. The largest value in Set B is 7, and the smallest value is 2, so the range is 7 - 2 = 5.
Therefore, the difference between the median of Set A (49.5) and the range of Set B (5) is 49.5 - 5 = 44.5.
(2) Each element in Set B is divisible by exactly two factors:
Since each element in Set B is divisible by exactly two factors, it implies that all elements in Set B are prime numbers. The analysis and calculations for Set A and Set B would be the same as in the first case.
Therefore, the difference between the median of Set A (49.5) and the range of Set B (5) is still 49.5 - 5 = 44.5.
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Please need help on this questions!
THis is the answer for ur question
Answer:
1) volume = 102.92 m²
2a) Perimeter = 28 inches
2b) Actual perimeter = 672 inches or 56 feet
2c) Exactly 24 times greater
Step-by-step explanation:
1)
4x5.5 = 22
full circle = (5.5²)(π) = 95
(30/360)(95) = 7.92
95+7.92 = 102.92 m²
2a)
Perimeter = (2)(6+8) = 28 inches
2b)
Actual perimeter = (2)(144+192) = 672 inches or 56 feet
2c)
(24)(28) = (2)(144+192)
672 = 672
Exactly 24 times greater
Find the angle of nonnegative measure 29pi/12
Answer:
435 degrees
Step-by-step explanation:
Using unit circle, you move back 5/12 of the circle and add 360 degrees to it to get 360 + 75 = 435 degrees :)
make me brainliest if i helped
please help factorise 7ab+a
Answer:
= a(7b + 1)
Step-by-step explanation:
7ab + a
a(7b + 1).
determine the quadtratic that has the following square root (5/3, 7/3)
Answer:
9x^2 - 36x + 35.
Step-by-step explanation:
One would be (x - 5/3)(x - 7/3) <------ in factor form.
Getting rid of the fractions by multiplying each term by 3:
= (3x - 5)(3x - 7)
Converting to standard form
= 3x*3x -7*3x - 5*3x + 35
= 9x^2 - 36x + 35.
PLS HELP ASAP 100 POINTS
WHAT IS a squared + a squared = 1
value of a =
Answer:
\(a=\sqrt{0.5}\)\(, a=-\sqrt{0.5}\)
Step-by-step explanation:
\(a^2+a^2=1\)
\(2a^2=1\)
\(a^2=0.5\)
\(a=\sqrt{0.5}\)
Answer:
a=\(\sqrt{\frac{1}{2} }\) , or -\(\sqrt{\frac{1}{2} }\).
Step-by-step explanation:
We have 2a^2=1
a^2=1/2
a= plus or minus square root of 1/2.
A camera shop stocks eight different types of batteries, one of which is type A76. Assume there are at least 31 batteries of each type. (a) How many ways can a total inventory of 31 batteries be distributed among the eight different types
Answer: 12,620,256
Step-by-step explanation:
Given: The camera shop socks eight different types of batteries and there re at least 31 batteries of each type.
Here we want to select r= 31 batteries from n= 8 kinds of batteries, then formula we use to find number of ways is \(^{n+r-1}C_r=\ ^{31+8-1}C_{31}\)
\(=^{38}C_{31}=\dfrac{38!}{31!(38-31)!}\\\\=\dfrac{38!}{31!7!}\\\\=\dfrac{38\times37\times36\times35\times34\times33\times32\times31!}{31!\times5040}\\\\=12620256\)
Hence, the number of ways can a total inventory of 31 batteries be distributed among the eight different types = 12,620,256
!!!Help!!!
Including scholarships and financial aid, Madeline has $41,000 to spend on college. If the total cost of her college education is __________, she will have enough resources to pay.
A.$44,000
B.$47,000
C.$50,000
D.$38,000
Answer:
D
Step-by-step explanation:
Find the slope of the line
Answer: -4
Step-by-step explanation: Start where the y-intercept is and go from there to the next point.
You go down by 4 to go to the point and then to the left one.
-4/1 = rise/run
-4= rise/run
Adriana baked 42 cookies with 7 scoops of flour. With 8 scoops of flour, how many cookies
can Adriana bake? Solve using unit rates
Answer:
she can make 48 cookies.
Answer:
48
Step-by-step explanation:
If you divide 42 by 7 you get 6 so thats how many cookies she baked with one scoop. So then you add 6
Which function has the same graph as y= 5sin(x + 2)? Y=5cos x.
y=5cos(x-pie). Y=5cos(x- pie/2). Y=5cos(x+pie/2)
Answer:
y=5cosx
Step-by-step explanation:just took the test.
Help and explain pls and thankyouuu
Answer: (1, 8)
Step-by-step explanation:
Substitute y = 3x + 5 into the equation 2x + 3y = 26:
2x + 3(3x + 5) = 26
2x + 9x + 15 = 26
11x = 26 - 15
11x = 11
x = 1
Substitute the value of x into the equation y = 3x + 5:
y = 3(1) + 5 = 3 + 5 = 8
Each year the value of a car decreases by 12% of its value at the beginning of that year. The original value of the car is $20000. Calculate the value of the car at the end of 3 years
Answer:
The value of the car at the end of 3 years will be $13707.
Step-by-step explanation:
If the original value of the car is $20000, then after the first year, the value of the car will be $20000 - (12/100)*$20000 = $17600.
After the second year, the value of the car will be $17600 - (12/100)*$17600 = $15552.
After the third year, the value of the car will be $15552 - (12/100)*$15552 = $13707.
Therefore, the value of the car at the end of 3 years will be $13707.
For number 8 find the variable using the properties of a parallelogram
Applying one of the properties of a parallelogram, the value of x is 10°, then 6x=60° and 12x=120°.
QuadrilateralsThere are different quadrilaterals, for example square, rectangle, rhombus, trapezoid, and parallelogram. Each type is defined accordingly to its length of sides and angles. For example, a parallelogram presents some properties that are presented below.
the opposite sides are equal and parallelthe opposite angles and the diagonals are equal.the adjacent angles are supplementary.The figure of the exercise shows two adjacent angles. From the property: the adjacent angles are supplementary, you have:
6x+12x=180
18x=180
x=10°
Therefore, 6x= 6*10=60° and 12x=12*10=120°.
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The area of a triangle is 10 square cm. The base is LaTeX: 2\:\frac{1}{2}2 1 2 cm. Find the height.
Answer:
\(Height = 40\)
Step-by-step explanation:
Given
Shape: Triangle
\(Area = 10cm^2\)
\(Base = \frac{1}{2}cm\)
Required
Determine the height
Area of a triangle is calculated as:
\(Area = \frac{1}{2} * Base * Height\)
Substitute values for Area and Base
\(10= \frac{1}{2} * \frac{1}{2}* Height\)
\(10= \frac{1}{4}* Height\)
Multiply both sides by 4
\(4 * 10= 4 * \frac{1}{4}* Height\)
\(4 * 10= Height\)
\(40= Height\)
\(Height = 40\)
Hence, the height is 40cm
* Ono 3 b) P and are the subsets of universal set U. If n (p) = 55% n (Q) = 50% and n(PUO)complement = 15% find: (i) n(PUQ) (ii) n(PDQ) (iii)n(only P) iv. n(only Q).
The probability of the sets are solved and
a) n(P U Q) = 85%
b) n(P ∩ Q) = 20%
c) n(only P) = 35%
d) n(only Q) = 30%
Given data ,
P and are the subsets of universal set U
And , n (p) = 55% n (Q) = 50% and n(PUO)complement = 15%
Now , we'll use the formula for the union and intersection of sets:
n(P U Q) = n(P) + n(Q) - n(P ∩ Q)
n(P ∩ Q) = n(P) + n(Q) - n(P U Q)
n(only P) = n(P) - n(P ∩ Q)
n(only Q) = n(Q) - n(P ∩ Q)
We're given that:
n(P) = 55%
n(Q) = 50%
n(P U Q)' = 15%
To find n(P U Q), we'll use the complement rule:
n(P U Q) = 100% - n(P U Q)'
n(P U Q) = 100% - 15%
n(P U Q) = 85%
Now we can substitute the values into the formulas above:
(i)
n(P U Q) = n(P) + n(Q) - n(P ∩ Q)
n(P ∩ Q) = n(P) + n(Q) - n(P U Q)
n(P ∩ Q) = 55% + 50% - 85%
n(P ∩ Q) = 20%
(ii)
n(P ∩ Q) = 20%
(iii) n(only P) = n(P) - n(P ∩ Q)
n(only P) = 55% - 20%
n(only P) = 35%
(iv)
n(only Q) = n(Q) - n(P ∩ Q)
n(only Q) = 50% - 20%
n(only Q) = 30%
Hence , the probability is solved
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the n 1/2 of the se 1/4 of the sw 1/4 and the ne 1/4 of the sw 1/4 of section 19 contains how many acres?
The n 1/2 of the se 1/4 of the sw 1/4 and the ne 1/4 of the sw 1/4 of Section 19 contains 40 acres.
The method used for land surveying is called the government rectangular survey system.
This system is commonly known as the Public Land Survey System (PLSS) of the United States. It is based on a grid network. The grid is formed with meridians and baselines.
The meridians are the imaginary lines running north to south, and the baselines are the imaginary lines running east to west. The meridians and baselines are named as ranges and townships, respectively.
Each range is 6 miles wide and numbered consecutively, beginning with the one on the far west side of the state. The townships are numbered from 1 to 36, in sequence, beginning at the southeast corner of the state. The government rectangular survey system divides the land into smaller units as follows:
Each township is further divided into 36 sections, each section is one square mile, or 640 acres.
Each section is further divided into halves, or 320 acres, and each half is divided into quarters, or 160 acres, and each quarter is divided into quarters again, or 40 acres.
Finally, each 40-acre parcel is divided into quarters, or 10 acres.
Therefore, the n 1/2 of the se 1/4 of the sw 1/4 and the ne 1/4 of the sw 1/4 of section 19 contains 40 acres.
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X - 54 + 32x = 53 find the value of x.
a). 23
b). 3 8/33
c). 25
d). 6 2/17
Answer:
b). 3 8/33
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsStep-by-step explanation:
Step 1: Define
Identify
x - 54 + 32x = 53
Step 2: Solve for x
Combine like terms: 33x - 54 = 53[Addition Property of Equality] Add 52 on both sides: 33x = 107[Division Property of Equality] Divide 33 on both sides: x = 107/33Simplify: x = 3 8/22find the perimeter of abc. round to the nearest tenth help please
The perimeter of the triangle is 21.1 cm
Perimeter of the triangle:The perimeter of a triangle is the total length of its three sides. It is calculated by adding the lengths of the three sides of the triangle. The perimeter is expressed in the same unit as the length of the sides.
Note:
The Pythagorean formula is a mathematical equation that relates to the sides of a right triangle.
Here we have
The right-angled triangle ABC
From the figure,
Length of side BC = 7 units
Length of side AC = 6 units
Using the Pythagorean formula,
=> AB² = BC² + AC²
=> AB² = 7² + 6²
=> AB² = 49 + 36
=> AB² = 65
=> AB = 8.06 [ Approx ]
Hence,
Perimeter of the triangle = AB + BC + AC
= 8.06 + 7 + 6
= 21.06
= 21.1 [ Rounded to nearest one ]
Therefore,
The perimeter of the triangle is 21.1 cm
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Work out length x.
Give your answer to 1 d.p.
The value of x is 0.918.
We have,
Sin 147 = x/1.7
Now,
Sin 147 = 0.54
Substituting.
0.54 = x / 1.7
x = 0.54 x 1.7
x = 0.918
Thus,
The value of x is 0.918.
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DRAWING A TAPE DIAGRAM A bag contains red marbles and blue marbles. You are given the number of red marbles in the bag and the ratio of red marbles to blue marbles. Find the number of blue marbles in the bag.
what is the equivalent expression to y+ 2/5y
Answer:
7 y /5
Step-by-step explanation:
2. Gerald wants to buy a gel pen that costs
95€. He has two quarters, a dime, and a
penny. How much more money does he
need?
Answer:
He needs 34 cents more
need help, can someone help me real quick !
Answer: SAA or AAS
Step-by-step explanation:
You always start at the “void” or where there are the least amount of marks and go either way.
PLEASE HELP!!!!!!! FOR A TEST
A shirt is on sale for 40% off. The sale price is $18.00. What is the original price of the shirt?
Answer:
Original sales price is $30
Step-by-step explanation:
\(x(1 - .4) = 18\)
solve for x
\(x = \frac{18}{(1 - .4)} \)
\(x = 30\)