Answers
Answer:
1/4
Step-by-step explanation:
The scale factor describes the size of an enlargement or reduction. For example, a scale factor of means that the new shape is twice the size of the original. A scale factor of means that the new shape is three times the size of the original.
Related Questions
For each question, identify the population and a possible sample.
Answers
Answer:
1 The number of people who bought the book. A best-seller list from the 1990s
2 The entire US. List of new cars bought between the given time points
3 The poplulation of North America that`s teachers. A Random sample of teachers incomes from different places inside North America.
4 A group of Tasmanian Devils. A few Tasmanian devils in a controlled environment
Hope this helps
A biologist estimated that the current population of ladybugs in the region was 8.3 × 106. He predicts that a swarm of 950,000 ladybugs will be arriving into the region.
According to the biologist's estimates, how many ladybugs will be in the region after the swarm arrives?
A.
1.78 × 106
B.
9.25 × 107
C.
9.25 × 106
D.
1.78 × 107
Answers
Answer: B
Step-by-step explanation:
Solve the system of equations: 6x/5 + y/5 = 2.3 x/10 − 2y/3 = 1.2
Answers
Find the value of x
A. 11.67°
B. 42.5°
C.18°
D.20°
Answers
Answer:
D. 20°
Step-by-step explanation:
The entire angle = 90 degrees you can tell that from the corner indicator
Set the two expressions equal to 90
(3x+10) + (x) = 90
Combine like terms
4x + 10 = 90
Subtract 10 from both sides to cancel it out
4x = 80
Divide each side by 4
x = 20
Check it by substituting x for 20
3(20) + 10 = 70 x = 20 70 + 20 = 90
Answer:
D. 20degrees
Step-by-step explanation:
This is a Complementary Angle so it will equal 90.
3x + 10 + x = 90
4x + 10 = 90
90 - 10
= 80
4x = 80
80 / 4
x = 20
PLEASE HELP FAST! What is the area of the figure?
Answers
Answer:
Step-by-step explanation: 119
The area of the figure is 119
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
!Help Help Help! lols
Answers
Answer:
Tricia travels at a rate of 50 miles per hour
Step-by-step explanation:
Answer:
75 miles per hour
Step-by-step explanation:
150 divided by 2 is 75
Solve for volume please
Answers
Answer:
35.25
Step-by-step explanation:
brainly please
Answer:
V = 780yd
Step-by-step explanation:
We are given a rectangular prism with 3 different sides of numbers, then are asked to find the volume.
The volume of a rectangular prism is V = lwh
l = 20yd
w = 3.25yd
h = 12yd
All we need to do to find the volume is multiply all the number together :
V = 20yd * 3.25yd * 12yd
V = 65yd * 12yd
V = 780yd
Answer a and b and explain how you did it for 25 points and brainest. Answer has to be correct.
Answers
Answer:
Step-by-step explanation:
b. 2.5 inches. 20/8=2.5
a. 10.125 inches. 81/8 = 10.125
The answer for a) is 10.125 inch and b) is 2.5 inch, 1.875 inch
What is an inch?Inch is a unit of linear measure equal to one twelfth of a foot (2.54 cm).
a) According to the question the real time length of the court is 81 ft
But from the question 1 inch in diagram is equal to 8 ft
So, 81/8=10.125
Thus the entire length of the court if it is 81 ft in real life is 10.125 inch
b) According to the question the real time length and width of receiver A is 20ft and 15ft
So, in diagram it could be in
length is 20/8 = 2.5 inch
width is 15/8 = 1.875 inch
Thus the length and width of receiver A is 2.5 inch, 1.875 inch
To know more about inch click here
https://brainly.com/question/15548277
#SPJ2
Kylie installed a fence along the 500-foot perimeter of her rectangular backyard. She left an opening for a gate. In the diagram below, she used n to represent the length, in feet, of the gate. What is the value of n?
A. 5
B. 10
C. 20
D. 40
Answers
What is the median for the data shown below? Test Scores Stem Leaves 6 8 7 0 8 0, 6, 8, 8, 9 6, 6, 7, 7, 8, 8, 9 10 0, 0, 0, 0, 0 6|0 = 60 years old 100 97 92 32
Answers
Answer: I believe it would be 0.
Step-by-step explanation:
The median is 97.
Using the stem-and-leaf plot in the diagram, below, write out each data points given, which are:
68, 70, 80, 86, 88, 88, 96, 96, 97, 97, 98, 98, 99, 100, 100, 100, 100, 100
The line plot for these data would have the following frequency for each data point:
68 - 1 dot
70 - 1 dot
80 - 1 dot
86 1 dot
88 - 2 dots
96 - 2 dots
97 - 2 dots
98 - 2 dots
99 - 1 dot
100 - 5 dots
Range = 100 - 68 = 32
Median = 97
Therefore, the median is 97.
Learn more about line plot here:
brainly.com/question/27246403
#SPJ1
Sorry about the x on 1 of the answers but can someone help?
Answers
Answer:
a line
Step-by-step explanation:
A line goes on forever in both directions. That is why it is represented by a line segment with arrowheads on both ends.
correct gets brainliest
Answers
Answer:
66.5m^3 closest value
Step-by-step explanation:
7*7=47 m^3 area of square
12-7=5m length of triangle side
(7*5)/2=17.5 m^3 area of triangle
area of square + area of triangle = total area
47+17.5 =64.5 m^3
Answer:
B; or 66.5 sq. meters:
Explanation:
- The figure is made of a Square and a Triangle:
Hope this helps!
Part A: Write an algebraic expression for 6 more than 7 times a number
Part B: Write a verbal expression for 3(n + 8).
Answers
Answer:
Part A: Equation 7n+6
Part B: The sum of three plus eight multiplied by a number.
Step-by-step explanation:
6 more= add 6
7 times a number
number=n
7n+6
sum= the result of adding two or more numbers
Answer:
Part A: Write an algebraic expression for 6 more than 7 times a number. 7n+6
Part B: Write a verbal expression for 3(n + 8).The sum of three plus eight multiplied by a number
Step-by-step explanation:
..........................................
Answers
Answer:
x=13
Step-by-step explanation:
mugs=x
key=y
x+y=21 8.5x2.75 =132.50
y= -x+21
8.5x + 2.75 (-x + 21) = 132.50
8.5x - 2.75 + 57.75 = 132.50
5.75x = 74.75
x= 13
pls mark as brainliest
Answer:
he bought 13 coffee mugs and 8 key chains.
Step-by-step explanation:
How about we solve by simulataneousequation:
consider coffee mug 'x' and key chain 'y'
there are total 21 items,
x+y = 21
=> x = 21 - y .........................(i)
and
total cost is $132.50
8.5x + 2.75y = 132.5 .........(ii)
put value of x from eqn (i) into (ii):
8.5 ( 21 -y) + 2.75y = 132.50
=> 178.5 - 8.5y + 2.75y = 132.50
=> -5.75y = -46
=>y = 8
Put vaklue of y back in (i):
x = 21 - y
=> x = 21 - 8 = 13
thus, x = 13
he bought 13 coffee mugs and 8 key chains.
y = 3x − 8
y = 9x − 11
Part A: Using your own words, explain how to solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations.
Part B: What is the solution to the pair of equations?
Answers
Answer:
A. You would first plot the y intercept. The first equation would be (0,-8) and the second equation is (0,-11). Then you would plot the slope. For the first equation, from (0,-8), you would move up 3 plots and right 1 plot. For the second equation, from (0,-11), you would move up 9 plots and right 1 plot.
B. The solution to the pair of inequalities is (1/2, -13/2). That is the intersection and point of the two lines. You would need to graph the two lines (see part A answer) and then find the intersection.
Hope this helps!
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.
Answers
Answer:
1 is 210
Step-by-step explanation:
i got he answer by adding the 4 things up
Answer:
210 student's
Step-by-step explanation:
80 students chose the aquarium.
60 students chose the science center.
30 students chose the planetarium.
40 students chose the farm.
The students can't vote for more than one place, so you just add all the numbers together.
80 + 60 + 30 + 40 = 210 students
Step-by-step explanation:
I got two questions I need help with
Answers
Lynn wants to predict how much fuel her car will use based on its speed. She drove her car 100\,\text{km}100km100, start text, k, m, end text at each of the speeds below, and she measured how much fuel was used at each speed. Her data is summarized in the table below.
Speed (km/hour) 202020 404040 606060 808080 100100100 120120120
Fuel used (liters) 13.013.013, point, 0 8.08.08, point, 0 5.95.95, point, 9 7.07.07, point, 0 8.38.38, point, 3 9.99.99, point, 9
All of the scatter plots below display the data correctly, but which one of them displays the data best?
By convention, a good scatter plot uses a reasonable scale on both axes and puts the explanatory variable on the xxx-axis.
Choose 1 answer:
Answers
Answer:
60 km/h
Step-by-step explanation:
The decreasing part is from (20,13) to (60,6), which gives an average rate of
Then, we have an increasing part from (60,6) to (120,10), which gives an average rate of
Basically, at 60 km/h the fuel used was 6 liters per 100 kilometers. Notice that the other velocities make the car to use more liters per kilometers.
Answer:
The amount of fuel used was lowest at speeds around 60 km/h
Step-by-step explanation:
I hope this helps
name at least two independent variables that could result in a change in a monthly electric bill
ill give thanks and brainliest ;-;
(please i had to repost since a bot answered my last questions, waste of my 20 points
Answers
Answer: There are often not more than one or two independent variables tested in an experiment, otherwise it is difficult to determine the influence of each upon the final results. There may be several dependent variables, because manipulating the independent variable can influence many different things.
Two independent variables that could result in a change in the monthly electricity bill are: Physical size of products and Skill level of operators of machines.
Independent VariablesIndependent variables are the determining factors that influence how a dependent variable changes.
For example, monthly electricity bill is a dependent variable which is dependent on the following:
Physical size of productsSkill level of operators of machines.Non-production machines utilizing electricity among others.Therefore, two independent variables that could result in a change in the monthly electricity bill are: Physical size of products and Skill level of operators of machines.
Learn more about independent variable on:
https://brainly.com/question/25223322
If you are given the surface area of a square pyramid and the area of the base, how could you calculate the area of each side of the pyramid?
Answers
Answer:
you need to divide the surface are and the base and you should get the number of each lateral face
Step-by-step explanation:
but you do need to tell me the numbers so do that in the comments
8. Please help me thanks
Answers
Answer:
D) 1800
Step-by-step explanation:
Answer:
1800
Step-by-step explanation: Because 10 x 180.
Write the phrase using numbers.
the product of a number (e) and 5
Number Form:
Expression or Equation:
Answers
Answer:
The Proper codes in Line a and Line b is given below
average=Sum/3
print (" Average is = ", average)
Explanation:
In the given question it calculated the sum but the program does not calculate the average of the 3 numbers.The average of the 3 number is calculated by using average=Sum/3 statement so we add this code in Line a then After that print the value of average by using the print function so we add this code in Line b.
Step-by-step explanation:
Marc runs 24 miles in 6 hours. At that rate, how many miles would he run in 4 hours?
Answers
16 miles
Explanation:
Do a fraction:
24 miles / 6 hours = x miles / 4 hours
Cross multiple (24)(4) and (6)(x) to give you 96 = 6x and divide by 6 on both sides to isolate x and you get 16 = x
Answer:
The answer is 16 miles
Step-by-step explanation:
.......
I NEED HELP FAST! Two different pools are being considered for a back yard. How many more feet will the larger pool occupy?
Answers
Answer:
138.16ft²
Step-by-step explanation:
Oh boy, this is a long one so hang onto your hats:
We're going to start by finding the area of the smaller circle (or pool) the formula for the area of a circle is pi x radius² and we're given the diameter, here's what we're gonna do:
take the diameter and divide it by 2:
20 ÷ 2 = 10
So now we have the radius and all we have to do is plug that into the formula:
10² = 100
(we're doing 3.14 for pi)
3.14 x 100 = 314
So the area of the smaller circle is 314ft²
Now we gotta do the bigger circle, and since we already have a radius, we can skip a step:
12² = 144
3.14 x 144 = 452.16
So the area of the bigger circle is 425.16ft²
But now we have to find the difference between the two areas:
425.16 - 314 = 138.16
So the larger pool occupies 138.16 more ft² than the smaller pool
lemmie know if this is wrong
~ ₕₒₚₑ ₜₕᵢₛ ₕₑₗₚₛ! :₎ ♡
1. The chairman of the community bazaar is assigning people to chair committees. How many different
ways can the 6 people be assigned to chair the subcommittees?
Answers
Answer:
720 different ways
The 6 people be assigned in 720 different ways to chair the subcommittees.Step-by-step explanation:
A radar measures the speed of a car at 45 miles per hour. The actual speed of the car is 40 miles per hour what is the percent error in the reading of the radar.
Answers
Answer:45
Step-by-step explanation:
step-by-step explanation:
the radar was off by 5 miles per hour, so we need to find what percent 5 is out of 45. percent of (times) if you don’t know how to find that out.
make the assumption that 45 is 100% because it is the output.
next we represent the value we seek with x. so 100% = 45 and x% = 5.
this gives us the simple pair of equations 100% = 45(1) and x% = 5(2).
then multiplying the equations together like 100%/x% = 45/5.
make it into its reciprocal so x%/100% = 5/45. that comes out to be x= 11.11%
5 is 11.11% of 45 so the radar is off by 11.11%
A rectangular prism and its net are shown below. (All lengths are in feet.)
Answers
Answer:
Step-by-step explanation:
2%2.Kelly iek
HEEEELLLLLLPPPPPP!!!!!
Answers
Answer:
10*10*10*10*10*10*10*10*10*10*10*10*10=10000000000000
4.94*10000000000000=49400000000000
49400000000000-26000000000= 49374000000000
Step-by-step explanation:
(x^m)/(x^n)=x^(m-n)
so
convert every body to scientific notation
(number less than 10 but equal to or greater than 1) times (10^x)
baby=26,000,000,000
how many decila places to move to left to make less than 10 but equal to or great than 1
10
there for it can be writtten as
2.6*10^10
how many times bigger is adult than baby
baby times x=adult
divide adult by baby with the numbers
x==
times =
1.9 times 10^3
answer is 1.9*10^3
Write the expression for when you translate the graph of y = |2x|−1 a) one unit up, b) one unit down, c) one unit to the left, d) one unit to the right.
Answers
B) y=|2x|-2
C) y=|2x+1|-1
D) y=|2x-1|-1
The expression for when you translate the graph of y=|2x|−1 is y= |2x-2|-1.
What is an expression?Expression in mathematics is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division. A function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable). In mathematics and the physical sciences, functions are indispensable for formulating physical relationships.
We are given that;
y = |2x|−1
Now,
To write the expression for when you translate the graph of y = |2x| - 1, we need to use the rules for vertical and horizontal shifts. The rules are:
To shift the graph up or down by k units, add or subtract k to the original function.
To shift the graph left or right by h units, add or subtract h to the input variable.
Using these rules, we can write the expressions for each translation as follows:
a) One unit up: y = |2x| - 1 + 1 y = |2x|
b) One unit down: y = |2x| - 1 - 1 y = |2x| - 2
c) One unit to the left: y = |2(x + 1)| - 1 y = |2x + 2| - 1
d) One unit to the right: y = |2(x - 1)| - 1 y = |2x - 2| - 1
Therefore, by the expression the answer will be y = |2x - 2| - 1.
To know more about an expression follow;
brainly.com/question/19876186
#SPJ3