Answers
Answer:
158. surface area = 108π
volume = 216√3π
159. surface area = 4√97π+16π
volume = 144π
Related Questions
Write the expression as an exponent with a base 2 and find its value:
2^4*2
Answers
2^6
Step-by-step explanation:
8^2=8×8
=2×2×2×2×2×2
=2^6
A square of 81cm² is cut to make two rectangles, A and B
The ratio of area A to are B is 2:3
Work out the dimensions of A and B
Answers
Answer:
Length of A: 9
Width of A: 6
Length of B: 9
Width of B: 3
Step-by-step explanation:
If you look at the diagram, you can see that the length of rectangles A and B are the same, and are also the same as they were in the original square. We can find the length of each side by finding the square root of the area of the square to give us the length and width of the square which is 9. Now that we know that the length of both rectangles A and B, we can find the width of both rectangles by taking 9, and splitting it into 3 portions of 3. Since the ratio of area is 2:1, we could also do this with the area, but since we know the lengths are the same, we know the widths are proportional to the area. Using the ratio of 2:1, and the 3 portions of 3, you can combine 2 of these portions to get 6, and since the ratio 6:3 is proportional to 2:1, these measurements can be used as the width of each rectangle. Thus, the answer given above.
Answer:
Length of A: 9
Width of A: 6
Length of B: 9
Width of B: 3
Step-by-step explanation:
Please help me! I will give brainly!
Question,
Reasoning Explain how you can tell which product is greater without multiplying or estimating.
3.75 x 922 37.5 x 9.22
Question,
Modeling Real Life Nutritionists recommend that fifth-graders should consume about 5 ounces of protein each day. One serving of yogurt contains 0.6 ounce of protein. You eat 2.5 servings of yogurt in 1 day. Do you consume enough protein for the day by eating yogurt?
Yes or No
Explain why
Answers
The second one 6*2.5=1.5 ounces which is 3.5 ounces too little.
Answer:
Question 1. 3.75 x 922
Step-by-step explanation:
for question 1 if u noticed that they both have the same numbers in the same order the only difference is where the decimal point is placed. First u need to anylase both equations to do that u need to look at 922 and 9.22 not the 3.75 and 37.5 because the decimal point doesn't justify anything. So you see 922 is bigger than 9.22. So the answer is 3.75 x 922.
NEED HELP ASAP NO FALSE ANSWERES. Part B: Scarlett made a profit of $250.00 with her mobile car wash company. She charged $75.00 per car wash and received $35.00 in tips, but also had to pay $5.00 in
cleaning supplies per car wash. Write an equation to represent this situation
Answers
Answer:
y = 70x + 35
Step-by-step explanation:
$75 - $5 = $70 (this is the amount charged minus the amount needed to get the job done per car wash)
the +35 is the tips extra/ constant that will be added after the jobs are done.
x is the amount of car washes done
y would be the profit received.
thus y = 70x + 35 (profit = value of car wash * number of cars washed + tips)
Answer:
Step-by-step explanation:
Profit = Income less outgo
= (car wash income + tips) - (supplies)
$250 = ($75n + $35) - ($5n), or
$215 = $70n (where n represents the number of cars washed)
This comes out to n = $215/$70, or approximately 3 car washes.
A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test. The table shows the data:
Number of hours spent studying
(x) 0 0.5 1 1.5 2 2.5 3 3.5 4
Score on science test
(y) 57 62 67 72 77 82 87 92 97
Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer. (4 points)
Part B: Write a function that best fits the data. (3 points)
Part C: What does the slope and y-intercept of the plot indicate? (3 points)
Answers
Answer: From the table we see there is a relation between x and y values
Every step change of x = 0.5, every step change of y = 2
This relation is linear. The formula for linear function is:
y = mx + b
Using to pairs of points to get the slope and y-intercept
(0, 60) and (1, 64)
Calculating the slope:
m = (64 - 60)/(1 - 0) = 4/1 = 4
y - intercept is 60 as per point (0, 60)
So the function is
y = 4x + 60
Part A
Yes. Described above
Part B
y = 4x + 60
Part C
Slope is the steepness of the line.
y -intercept is the lowest score with no time spent studying
HOPE I HELPED ! Have a great day :)
The number of hours students spent studying and the score on the science test are in linear correlation , a function that best fits the data is y = 4x + 60 and the slope and y-intercept of the plot indicate that y -intercept is the lowest score with no time spent studying
Linear CorrelationLinear Correlation is a measure of the degree to which two variables vary together, or a measure of the intensity of the association between two variables.
What are the steps to solve this problem?The steps are as follow:
We can see there is a relation between x and y values that for every step change of x = 0.5, every step change of y = 2So the relationship is linearBy using to pairs of points to get the slope and y-intercept (0, 60) and (1, 64)And Calculating the slope:m = (64 - 60)/(1 - 0) = 4/1 = 4
y - intercept is 60 as per point (0, 60)So the function is y = 4x + 60The slope and y-intercept of the plot indicate lowest score with no time spent studyingSo, the number of hours students spent studying and the score on the science test are in linear correlation , a function that best fits the data is y = 4x + 60 and the slope and y-intercept of the plot indicate that y -intercept is the lowest score with no time spent studying
Learn more about Linear Correlation here:
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please help me with these 2 questions will give brainly!
1 . Which integer represents the following: –(–28)?
28
-28
2. Which integer represents the following: –(–(–65))?
-65
65
Answers
Answer:
1. 28
2. -65
Step-by-step explanation:
The rule I learned, was that if there is an even number of negative signs, the outcome is positive. If there is an odd number of negative signs, the outcome is negative.
In the first question, we have 2 negative signs. So the outcome is positive. 28 is positive.
In the second, we have 3 negative signs, so the outcome is negative. -65 is negative.
I hope this helps!
Answer:
28, -65
Step-by-step explanation:
PLEASE TRY TO HELP SOLVE EITHER ONE (OR BOTH). THX!
1. Take an 13 by 8 rectangular grid. Color each of the 1 by 1 cells either solid red, solid white, or solid blue. Show that there are at least two 2 by 2 squares in the grid that are colored exactly the same.
2. Every day of the 10-week summer break, Pamela ate 1 or 2 carrots. Over the course of the summer, she ate a total of 100 carrots. Show that there was an interval of days during the summer break during which Pamela ate exactly 35 carrots.
Answers
Answer:
p and q are two numbers.whrite down an expression of.
Answer:
I’m doing second one
Step-by-step explanation:
I’m confused what the first question is asking for but for the second one is it took her 25 days to eat 35 carrots
(I GOT AN 80% )
1.(D)
Ricardo has r minutes left on his cell-phone card. He wants to call his friend and still have 8 minutes left over to make calls later. Which expression describes the length of time he can talk to his friend?
D) r – 8
2.(D)
Lorraine rode her bike one-sixth the distance Jeremy rode his bike. If b represents the distance Jeremy rode, which expression represents the distance Lorraine rode her bike?
D) b
---
6
3.(A)
Raoul rode an elevator up the floors. He entered on the 5'thand exited on the 34'th
sloor. Which equation shows an equality between two different ways of expressing the Raoul exited ?
A) 34 = 5 + e
4.(B)
Hank went to an apple orchard and paid an entrance fee of $5 and bought a pounds of apples at $2 per pound. Hank paid a total of $19.
Which equation shows an equality between two different ways of expressing how much Hank paid in all?
B) 5 + 2a = 19
5.(A)
Chen’s house is 53 years old. This is 5 more than twice the age of Sunny’s house, h.
Which equation shows an equality between two different ways of expressing the age of Chen’s house?
A) 53 = 2h + 5
6.(A)
Mandy and four of her friends want to see a movie. If m represents the cost for one person to see a movie, which expression represents the cost for Mandy and her friends to see a movie?
A) 5m
7.(WRONG ANSWER IS D)
Natalie and Juan collect marbles. The number of marbles that Natalie has is 4 more than 3 times the number of marbles Juan has. If m represents the number of marbles Juan has, which of the following expressions represents the number of marbles Natalie has?
A) 4m + 3
B) 3m + 4
C) 3m – 4
D) DO NOT PICK ITS WRONG
8.(WRONG ANSWER IS D)
Hannah baked twice the number of cookies Sam baked. Sam baked 36 cookies. Let c represent the number of cookies Hannah baked.
Which equation shows an equality between two different ways of expressing how many cookies Sam baked?
A) 36 = c – 2
B) 36 = c + 2
C) 36 = c ÷ 2
D)DO NOT PICK ITS WRONG
9.(B)
There were c members in the chess club before 8 more people joined. Which expression describes the number of members in the chess club now?
B) c + 8
10.(C)
C) P
--- + 1.5
4
(all the correct answers are next to the numbers and it says do not pick which everyone's where wrong which was 7 and 8 i hope this helps you)
Answers
Answer:
for 7 the answer is B and for 8 the answer is C.
Step-by-step explanation:
7.
Natalie and Juan collect marbles. The number of marbles that Natalie has is 4 more than 3 times the number of marbles Juan has. If m represents the number of marbles Juan has, which of the following expressions represents the number of marbles Natalie has?
A) 4m + 3
B) 3m + 4
C) 3m – 4
if Natalie has 4 more ( adding 4 more marbles) marbles that are already 3 times Juan has ( multiplying by 3) then the answers for A and C don't make since the amount of marbles is multiplied by 3 and adds 4. Bis the correct option.
8.
Hannah baked twice the number of cookies Sam baked. Sam baked 36 cookies. Let c represent the number of cookies Hannah baked.
Which equation shows an equality between two different ways of expressing how many cookies Sam baked?
A) 36 = c – 2
B) 36 = c + 2
C) 36 = c ÷ 2
if Hannah made twice as many cookie as Sam that means the amount of cookies Hannah made are equivalent to 36 x 2= c. if we were to multiply 36 x2 we'd get how many cookies Hannah made and if we needed to find out how many Sam made we'd have to divide Hannah's cookies by two. giving us 36 = c ÷ 2. making C the correct option.
Simplify:
[tex]2/5(1/3x-15/8)-1/3(1/2-2/3x)[/tex]
Answers
Answer:
[tex]16/45x-11/12[/tex]
Step-by-step explanation:
[tex]2/5(1/3x-15/8)-1/3(1/2-2/3x)\\= 2/15x-30/40-1/6+2/9x\\= 16/45x-11/12[/tex]
Answer:
16/45x - 11/12
Step-by-step explanation:
Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per day (rounded to the nearest hour):
Number of hours in school per day 4 5 6 7 8 Sample A: Number of students 70 100 125 135 70 Sample B: Number of students 80 90 120 125 85 Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? Explain your answer in two or three sentences. Make sure to use facts to support your answer.
Answers
Answer:
The mean would be 6, meaning Tara is correct.
Step-by-step explanation:
The reason to why this is the answer is that I had to add all the “number of hours in a school per day” to get 30. Then, you would have to divide 30 by 5 (because you have five different hours for a school day) to get 6. Your mean would be 6 because mean is adding up the amount of something, then dividing it of how many numbers you added.
Tara think correct mean i.e., 6 . The student spends a mean of 6 hours in school each day.
Tara is correct.
What is mean of the data?Arithmetic mean or mean or average is the number that is obtained by adding the values of all the items of a series and dividing it by the number of observations.
As per given that :
Time slots (in hours): 4, 5, 6, 7, 8
Sample A: 70 100 125 135 70
Sample B: 80 90 120 125 85
For Sample A, the mean will be
[tex]\frac{\sum fx}{\sum f}[/tex]= [tex]\frac{3035}{500}[/tex]
=6.07
For Sample B, the mean will be
[tex]\frac{\sum fx}{\sum f}[/tex]= [tex]\frac{3045}{500}[/tex]
=6.09
The average mean will be = [tex]\frac{6.07+6.09}{2}[/tex]
=6.08
Tara assumed the correct mean.
Learn more about mean here:
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answered the picture shows the graph of the movement of the pedestrian and the bicyclist using the graph answer the following questions
https://homework.russianschool.com/resource?key=16643imdkylod
Answers
Answer:
Answer: Wheref(the) is the distance in kilometers and the input the is the time in hours
BC f(t) = -5t + 40
CD f(t) = 20. Or f(t)= -20(t/t)+40 OR f(t) = 0t + 20
DE f(t) = -5(t-2) + 40
Step-by-step explanation:
The negative slope means that the distance is decreasing by 5 km/hr when there is movement. Between hours of 4 and 5, the slope is 0, but the distance remains constant at 20. All the options for CD are strange. But they describe the line segment in the graph.
Plug in the values of the hours to check.
Step-by-step explanation:
MATH QUESTION!!!!!!!!!!!
Answers
Answer:
C
Step-by-step explanation:
The slope of the graph is x= 2, y=3.
you can go over 2 and up 3 and create a linear line.
3/2
Explanation:
What is the solution to the following system of equations: 2x + 3y = 5 AND 5x = 5y -25
Answers
Answer:
point form (-2,3)
Equation form
x=-2, y=3
Step-by-step explanation:
solve for the first variable in one of the equation, then substitute the result into the other equation.
Answer:
(-2,3)
Step-by-step explanation:
5x=5y-25
x=y-5 divide both sides by 5
use substitution.
2(y-5)+3y=5
2y-10+3y=5 distribute the parenthesis
5y-10=5 combine like terms
5y=15 add 10 to both sides
y=3 divide both sides by 5 to get y alone
5x=5(3)-25 replace y with 3, the value we found above
5x=15-25 multiply 5 and 3
5x=-10 subtract 25 from 15
x=-2 divide both sides by 5 to get x alone
how did the temperature change if at first it increased by 60 and then decreased by 80
Answers
Answer:
Step-by-step explanation:
+25-80=-55
therefore there was a -55˚ change from the og temp
Answer:
-20/dropped 20 degrees
Step-by-step explanation:
60-80 = -20 (or, it dropped 20 degrees)
WILL MARK BRAINLIEST!!!
Line A: x + y = 2
Line B: 2x + y 4
Which statement is true about the solution to the set of equations?
a. infinitely many solutions
b. two solutions
c. one solution
d. no solution
Answers
Answer:
(C. one solution
Step-by-step explanation:
hope this helps
Someone help me, I’m struggling and I would be so happy if any of you helped me
Answers
Answer:
1. 75 grams of Toasty Oats for 9 grams of protein
2. Toasty Oats
Step-by-step explanation:
By using cross multiplication we can figure out how many grams of Toasty Oats is needed for 9 grams of protein:
[tex]\frac{12}{100}* \frac{9}{x}[/tex] (x) being the grams of toasty oats.
Cross multiply: 12x = 900
solve for x: 900/12 = x
x = 75 grams of toasty oats needed for 9 grams of protein
To find which one has the better ratio of proteins to grams of cereal,
we can multiply the amount of cereal together to get the same denominator
12/100 and 5/45
12/100 * 9
5/45 * 20
to get the same denominator
108/900 and 100/900
we can see the (12/100)*9 has more protein to grams of cereal ratio than (5/45)*20.
Answer:
1. 75 grams of Toasty Oats for 9 grams of protein
2. Toasty Oats
Step-by-step explanation:
Item 17
Your family has decided to put a rectangular patio in your backyard similar to the shape of your backyard. Your backyard has a length of 40 feet and a width of 20 feet. The length of your new patio is 12 feet. Find the perimeter of your new patio.
Answers
Answer:
80
Step-by-step explanation:
80
form a phythogorean triplet using the following numbers
7,11,6,13
Answers
HELP ILL GIVE BRAINLIEST
Part 1: Which compound does C represent?
Part 2: Name a process that could release this compound into the air.
Part 3: Explain how the elements that form it are conserved during the carbon cycle. Use complete sentences to explain your answer.
Justify how this compound was created from a recycling of carbon in the carbon cycle. Use complete sentences to explain your answer.
Answers
The process that arrow C signifies is the burning of fossil fuels in order to present carbon dioxide into the atmosphere. The mentioned procedure in the carbon cycle is comparatively new as humans were not able to generate huge concentrations of carbon dioxide by burning fossil fuels until the emergence of the Industrial revolution.
Part 2:
The phenomenon, which could discharge the compound into the air is the burning of fuels. It is an oxidation reaction in which the carbon present in the hydrocarbons in the fuel is oxidized to carbon dioxide by the presence of oxygen in the air. The carbon dioxide discharged into the atmosphere contributes to the greenhouse effect.
Part 3:
The elements, which produce it are conserved at the time of the carbon cycle by the Law of Conservation of Matter. According to this law, the matter is neither consumed nor produced, it only gets transformed. So, at the time of chemical procedures in the carbon cycle, the atoms of carbon are never destructed, however, they get rearrange and modify into distinct molecules. The mentioned cycle is essential for maintaining life on Earth.
I will literally give you my life if you. help me with these integer questions-
Answers
Answer:
10. 23
11. -17
12. 0
13. -4
14. -6
15. 4
Explanation:
10. 8+15= 23
11. -8-9= -17
12. 8-8= 0
13. -8+4= -4 (same as 4-8)
14. -10+4= -6 (same as 4-10)
15. 12-8= 4
Select the correct answer from each drop-down menu.
In ABC, AD/DE = CE/EB. Complete the proof showing that DE is parallel to AC. (Plato)
Answers
Answer:
corresponding
Step-by-step explanation:
Question 2 (1 point)
Luis and Jorge are exercising. Luis does 10 push-ups at the same time as Jorge does 15 push-ups. When
Luis does 40 push-ups, how many push-ups does Jorge do?
Answers
Answer:
Jorge does 45 push-ups
Step-by-step explanation:
Why? Beacuse everytime luis does a push up it the same thing as Jorge but just five more so 40 plus 5 is 45 thats how i got my answer.
Taylor bought 5 dozen oranges. 30% of the oranges were used to make juice and 15% of the oranges were given to his daughter. Find the number of oranges he had left?
Answers
Answer:
33 oranges are left, 18 went to making juice and 9 were given to his daughter
“Model a desert community where 60% is houses, 10% is shops, and 30% is parks.”
Answers
Answer:
house are 60 squares
shops are 10 squares
and parks are 30 squares
I think because it can be a wrong answer
any way best of luck
See the picture to solve the question 1Question=10 points
Answers
Answer:
1.5x+2.75y+33
Step-by-step explanation:
Call x: the hour of dogs keeping
y: the hour of wolves keeping
The total charge for dogs keeping: 19+ 1.5x
The total charge for wolves keeping: 14+2.75y
Total cost (19+ 1.5x)+(14+2.75y)= 1.5x+2.75y+33
HELP! PLEASE SOLVE. lol
Answers
Answer:
2, 2, 4, 8, 14, 22, 32, 44
How many three digit numbers have digits whose sum is greater than 2?
Answers
Answer:
896
Step-by-step explanation:
Let's talk first about how many 3 digit numbers there are. The first 3 digit number is 100 and the last is 999. So there are 999-100+1 numbers that are 3 digits long. That simplifies to 900.
Now let's find how many of those have a sum for the digits being 1, then 2 ? Then take that sum away from the 900 to see how many 3 digit numbers have the sum of their digits being more than 2.
3 digit numbers with sum of 1:
The first and only number is 100 since 1+0+0=1.
We can't include 010 or 001 because these aren't really three digits long.
3 digit numbers with sum of 2:
The first number is 101 since 1+0+1=2.
The second number is 110 since 1+1+0=2.
The third number is 200 since 2+0+0=2.
That's the last of those. We could only use 0,1, and 2 here.... Anything with a 3 in it would give us something larger than or equal to 3.
So there are 900-1-3 numbers who are 3 digits long and whose sum of digits is greater than 2.
This answer simplifies to 896.
Which graph represents a linear function?
Answers
HELP, please. Get it correct.
Answers
Answer:
1176 cm squared
Step-by-step explanation:
top: 1/2*6*16 = 3*16 = 48 cm squared
sides: 30*16 + 2(30*10) = 480 + 600 = 1,080 cm squared
bottom: same as top, so 48 cm squared
altogether: 48 + 1080 + 48 = 1080 + 96 = 1176 cm squared
hopefully this is correct
Please answer this question, I will mark brainlest
Answers
Answer:
B: 12
Step-by-step explanation:
length of one side =150
length of one path =12.5
Number of patches= 150 / 12.5
Number of patches = 12
hope it helps
please mark me as brainliest
