Answer:
A. Subtract 7 from 10.
Step-by-step explanation:
Simply remember PEMDAS.
P arentheses
E xponents
M ultiplication
D ivision
A ddition
S ubtraction
Ophelia keeps flour in a cylindrical canister. The capacity of the full canister is 75.36 in^3..When it is filled halfway the flour reaches a height of 3 in. What is the diameter of the canister?
Answer:
4 (rounded to the nearest whole number)
Step-by-step explanation:
total height = 3 x 2 = 6
Volume = radius^2 * pi * height
75.36= radius^2 * pi * 6
75.36/pi = radius^2 * 6
23,987833 = radius^2 * 6
23,987833/6 = radius^2
3,997972 = radius^2
radius = 1,999493
diameter = radius x 2 = 1,999493 x 2 = 3,998986
Given the area model of the right triangle below, what is the missing area?
Answer:
Use the pythagorean theorem
Step-by-step explanation:
Linn evaluated (40.2)(1/8) + (2.1)(-56?5) and said the answer was 18.495 is Linn's answer reasonable? estimate using compatible numbers.
Answer:
no it is not
-112.575
Step-by-step explanation:
given the sequence 7, 12, 17, 22
which expression can be used to find the nth term in the sequence?
2n+5
3n+4
4n+3
5n+2
A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results: 80 choose the aquarium. 60 choose the science center. 30 choose the planetarium. 40 choose the farm. The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium. Answer the questions to solve the problem. 1. How many students did the teacher survey? Write your answer in the space below. 2. What is the relative frequency of a student choosing the aquarium? Give your answer as a decimal rounded to the nearest hundredth. Show your work. Write your answer in the space below. 3. Suppose the teacher surveys one student at random. Based on the survey results, what is the estimated probability that the student chooses the aquarium? Write your answer in the space below. 4) Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquarium. Show your work. Write your answer in the space below.
Answer:
https://brainly.in/question/30560329
Step-by-step explanation:
Those are the answers I found on brainly
Match the verbal statement to the correct value.
One–third of the product of −8 and 9
Half the sum of 8 and −6
Three times the sum of 12 and −6
One-fifth the product of 1 and −5
Five times the sum of −8 and 4
Answers:
-24
-20
-1
1
18
Answer:
down below.
Step-by-step explanation:
One–third of the product of −8 and 9 = -24
-8(9) = -72
-72 / 3 OR -72(1/3) = -24
Half the sum of 8 and −6 = 1
8 + (-6) =2
2 / 2 = 1
Three times the sum of 12 and −6 = 18
12 + (-6) = 6
6 * 3 = 18
One-fifth the product of 1 and −5 = -1
1(-5) = -5
-5/5 = -1
Five times the sum of −8 and 4 = -20
-8 + 4 = -4
-4 * 5 = -20
In what periods are the lanthanides and actinides? Where are they
placed in the periodic table? Why?
Lanthanides are in period 6 and actinides are in period 7. They are at the down part of the page so that the periodic table can fit on the page.
Answer: They are palced in 6th and 7th period below the periodic table due to their properties and to keep the balanced shape of periodic table.
PLEASE SHOW WORK
A state representative took several random surveys of adults to find which place they visited most frequently.
The average of all of the surveys is shown in this table.
Places & Average of Surveys
ZOO 31
Museum 14
Park 17
Aquarium 8
Based on the table, which conclusion can be made?
А. On average, 50% of the adults visited the zoo most frequently.
B. On average, 17% of the adults visited the park most frequently.
C. On average, 2 out of 25 adults visited the aquarium most frequently.
D.On average, 2 out of 10 adults visited the museum most frequently.
Answer:
D.
Step-by-step explanation:
In total, there are 70 people.
31/70= around 44.2%
14/70= 20%=2/10
17/70= around 24.2%
8/70= around 11.4%
Using proportions, it is found that the correct statement is given by:
D. On average, 2 out of 10 adults visited the museum most frequently.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, there is a total of 31 + 14 + 17 + 8 = 70 adults.
Applying the rule of three, 2 out of 10 considering 70 adults is equivalent to 14 adults, hence option D is correct.
More can be learned about proportions at https://brainly.com/question/24372153
#SPJ2
help?????............
Answer:
Im pretty sure its the first one
Step-by-step explanation:
in a coordinate plane what is the difference between (-3 1/2, 4) and (2 1/2)?
Answer:
?
Step-by-step explanation:
By difference I think you mean how far away from? I don't really know what you mean by this but I will try to help.
1/2-4=-3 1/2
2-(-3 1/2)=5 1/2
-3 1/2
5 1/2
Above is a fraction.
I hope that I helped. Sorry if it wasn't the answer you were looking for.
What is the scale factor of the dilation?
Is the dilation an enlargement or a reduction?
Answers:
Scale Factor = 3/4
This is a reduction
======================================================
Explanation:
Let's focus on the point R(4,4). That's the preimage point for the image of R ' (3,3).
Let k be the scale factor. We multiply this value of k by the x,y coordinates of point R to jump to R '
we have x = 4 jump to 4k which is the x coordinate of point R'
So we set 4k equal to 3 and solve for k to get k = 3/4. The scale factor is 3/4 or 0.75
We have a reduction since the image triangle T'R'S' is smaller compared to the preimage triangle TRS. We can see that we have a reduction by looking at the scale factor. If 0 < k < 1, then we have a reduction. If k > 1, then we have an enlargement instead. So we go with the first option since 0 < 3/4 < 1 or you could say 0 < 0.75 < 1.
Answer:
A reduction (think shrinking) is a dilation that creates a smaller image, and an enlargement is a dilation that creates a larger image
Step-by-step explanation:
Betsy started a business 2 years ago. She had 8 customers in the first year. She added 18 customers in the second year. Betsy's goal is that in each of the next 4 years, she will have three times ad many customers as the year before. Betsy shows her calculations in the TABLE below that if she meets this goal each year, she will have 312 customers 4 years from now. is Betsy correct? Use the drop-down menus to explain your reasoning.
Expression: (8 + 18) * 3^4
Step 1: 26 * 3^4 <<< TABLE
Step 2: 26 * 12
Answer: 312
Pick the correct answer in parentheses:
Betsy's calculations in Step 1 are ( is she Correct or Incorrect) because... ( .She added incorrectly .She has 26 customers at the end of her second year .She should have multiplied 18 * 3^4 before adding 8)
Besty's calculations in Step 2 are ( is she Correct or Incorrect) Because.... ( .She did not find the correct value of 3^4 .26 * 3^4 = 26 * 12 .She did not apply the order of operations correctly)
If Betsy reaches her goal each year, she will have.. ( .2,106 .312 .1,466) customers 4 years from now.
Answer: step one is correct and the second step is incorrect
Step-by-step explanation:
Answer:
Betsy isn't correct. Betsy's calculations are wrong as she made her calculations by multiplying the base number of customers by 3 and then summing it all up for the 4 years under review instead of a continuous multiplication by 3.
Step-by-step explanation:
26 × 3 × 4 is different from 26 × 3⁴
- If Betsy meets her target for the next 4 years, she will have 2106 customers in 4 years time.
- Betsy started her business 2 years ago.
- In the first year, Betsy has 8 customers.
- In the second year, Betsy added 18 customers,
- So, her customers are now 8+18 = 26
- Betsy's goal is that in each of the next 4 years, she will have three times as many customers as the year before.
If the base number of customers is truly 26 this year,
Next year, Betsy would have 26 × 3 = 78 customers.
In 2 years, she would have 78 × 3 = 234
Thus indicating that in t years from now, the number of her customers will be
N(t) = N₀ × 3ᵗ
where
N(t) = number of customers t time from now
N₀ = number of customers at the moment = 26
t = number of years from now.
N(t) = 26 × 3ᵗ
In 4 years from now, Betsy will have
N(t=4) = 26 × 3⁴ = 2,106
So, it is evident that Betsy's calculations are wrong as she made her calculations by multiplying the base number of customers by 3 and then summing it all up for the 4 years under review instead of a continuous multiplication by 3.
26 × 3 × 4 is different from 26 × 3⁴
- If Betsy meets her target for the next 4 years, she will have 2106 customers in 4 years time.
pls like this if u found it helpful nd pls give me brainliest
Can someone give me a small lesson on nets and surface areas??
Thank you if you can. I really don’t understand.
Hi!
Here is the definition of a net from www.icoachmath.com:
“Net is a two-dimensional pattern of a three-dimensional figure that can be folded to form the figure. In other words, net is a flattened three-dimensional figure which can be turned into the solid by folding it.”
In the photo is an example of a net of a rectangular prism.
Surface area is the measure of the total area of the surface of a 3D object. For example, if I have a cube, the surface area would be the area of the outside of the cube.
Hope this helped,
Caroline
What is the value of x?
Answer:
28!
Step-by-step explanation:
soooooo its a 90 degree angle
2x+1+33=90
2x+34=90
-34
2x=56
x=28
Answer:
x = 28°
Step-by-step explanation:
As you see that the angle is an right angle where right angles = 90°
So,
(2x + 1) + 33 = 90°
Subtract 33 on both sides:
2x + 1 = 57
Subtract 1 on both sides:
2x = 56
Divide 2 on both sides:
x = 28°
Justin is running a 10-mi. race on Saturday. If he runs at a steady pace, what rate of speed must he maintain to finish the race in 2 hr.?
A. 2 mph
B. 3 mph
C. 5 mph
D. 10 mph
Answer:
5 MPH
Step-by-step explanation:
10 miles at what speed , in MPH ? at 5 MPH he would cover 10 miles in 2 hours... does that make sense?
please help me with this math
Answer:
i think is correct
Step-by-step explanation:
you need connect figure.
i’ll mark as brainliest if correct
A rectangular pyramid was sliced perpendicular to its base and through its vertex. What is the shape of the cross section shown in the figure?
A rectangular pyramid. The cross section is a triangle.
a triangle that has the same dimensions as one of the sides of the pyramid
a triangle that does not have the same dimensions as one of the sides of the pyramid
a parallelogram that is not a rectangle
a rectangle
Option C:
A triangle that does not have the same dimension as one of the sides of pyramid.
Because....
There is a rectangular Pyramid, which is sliced perpendicular to its base and through its vertex.
Can someone help me please
Answer:
R= C x 2 - 5
C= R/2
Step-by-step explanation:
What is the perimeter of the triangle?
please and answer correctly, i will give brainleist
Answer 1: Meal
Answer 2: Spinning the number less than 3 and fliping tailes
Step-by-step explanation 1: Because there are way more choices to choose from so more people will go for the meal chose.
Step-by-step explanation 2: It is more likely to land on a 3 or below because of the chances and for it to land on heads is a 50-50 chance
Hope this helped!
Answer:
8 = 21 9 = 20 10 = 24 11 = 60
Step-by-step explanation:
15 = 7/10
16 = 9/10
17 = 9/10
18 = 0/10
19 = 13/10
20 = 13/10
Help me guys it is homework pleased ⇄ ∛
Answer:
I haven't done these in 2 years and I'm not sure if I remember things correctly but here's what I would put down.
5) No, it is not because the sizes of each section are not even.
6) Yes, this is fair since there are a even chance of getting each number.
7) 3 out of 25 or 3/25
8) The bag with 250 colored tiles would give him a less chance of picking a blue tile. In the first bag, there is a 40% chance that Greg would pick a blue tile while the second bag, he would have a 30% chance of picking a blue tile. To get these percentages, I divided the the amount of blue tiles in the bag by the total amount of tiles.
Explantion for question 8: 10 blue tiles in a bag of 25 so you would do 10/25 which is .4 and as a percentage it would be 40%. For the second question, 75 blue tiles out of 250 total so 75/250 and that would be .3 and as a percentage, it would be 30%. The "/" is a fraction bar and is sometimes used as a division symbol as well, just in case you don't know:)
Step-by-step explanation:
PLZ ANSWER WORTH 10 points!!!! ANswer correct and I will give brainiest! ( I keep my words)
Answer: Part 1 (2.35 X M)
Step-by-step explanation: Part 2 she would have saved $28.20 in one year if she started with nothing.
What is the theoretical probability of landing on NOT green?
A. P(green)= 4/5
B. P(green)= 3/4
C. P(green)= 1/5
D. P(green)= 5/8
Answer:
D. P(green)= 5/8
Step-by-step explanation:
Number of green appearances:
3
Total:
8
Appearances of not landing on green:
5
Theoretical probability of landing on NOT green:
5/8
What does a closed circle on a number line mean?
Answer:
Step-by-step explanation:A closed circle indicates "greater than or equal to" or "less than or equal to," while and open circle indicates "greater than" or "less than".
Answer: They are numbers that are less than or equal to and greater than or equal to.
Step-by-step explanation: I hope this helps!
Solve the x
3(1.5x + 9)= -9
Answer:
x = -8
Step-by-step explanation:
3(1.5x + 9) = -9
Divide both sides by 3
1.5x + 9 = -3
Subtract 9 from both sides
1.5x = -12
Divide both sides by 1.5
x = -8
Answer:
x = -8Step-by-step explanation:
3(1.5x + 9)= -9
=> 4.5x + 27 = -9
=> 4.5x = -9-27
=> 4.5x = -36
[tex] = > \frac{45x}{10} = - 36[/tex]
[tex] = > x = - 36 \times \frac{10}{45} [/tex]
[tex] = > x = - 4 \times \frac{10}{5} [/tex]
=> x = -4 × 2
=> x = -8 (Ans)
Write an equation that you can use to solve for the height of the triangle (x). Notice that the perimeter is 48 feet.
A. 48 = 12 + 20 + x
B. 48 = 12(x)/2
C. 48 = 12(x) (20)
D. 48 = 12 + 20 - x
Please help me with #5
Simple Interest: formula I=PRT
P=$ or principal
R=%
T=time(in years-divide by 12 if given months)
“Any absurd answers will be reported”
help for brainliest plz
Answer:
6/2 mark me as brainliest please
pls help me i'll give the brainlist or whatever it is to the first correct answer. pls NO LINKS.
Answer:
628 hope it helps
Step-by-step explanation: