If a scale uses 2 cm to represent 6 ft., how many centimeters will be used to represent 21 ft.?
Answers
Answer: 7 cm
Step-by-step explanation:
2=6
4=12
6=18
8=24
7=21
Related Questions
Which statement could be used to explain why the function h(x) =3 has an inverse relation that is also a function
Answers
Correct Question is:
Which statement could be used to explain why the function h(x) = x3 has an inverse relation that is also a function?
1. The graph of h(x) passes the vertical line test.
2. The graph of the inverse of h(x) is a vertical line.
3. The graph of the inverse of h(x) passes the horizontal line test.
4. The graph of h(x) passes the horizontal line test.
Step-by-step explanation:
Answer is Option 2: The graph of the inverse of h(x) is a vertical line.
A given expression in x i.e. y = f(x) will be a function if and only if there exists only one value of y that is true for every value of x. We will do the vertical line test for verification if the inverse of a function is a
If we plot f(x) and draw a straight line parallel to y-axis from a point x belonging to its domain and this line meets the curve at only one point then f(x) will be a function. This test is called vertical line test.
So if the graph of inverse of h(x) passes the vertical line test then the inverse of h(x) is also a function.
Use the distributive property to expand (simplify):
11(12x - 10xy)
Answers
Answer:
132x-110xy
Step-by-step explanation:
10. Which equations could be used to solve
for x? Circle all that apply.
Answers
Answer: B and D
Step-by-step explanation:
PLEASE HELP +10 pts BUT BETTER SHOW WORK ON HOW U GOT THE ANSWER! No links. Plz.
I’ll report if u don’t answer the question I literally need help with this is no joke.
Answers
Be carful
what is the rate of change for y= 8/7x + 5
Answers
Help!!
I will mark you brainliest for the correct answer.
Please help!!!
Answers
To find the interior of Y
Y = 180 - 135
Y = 45
The interior of Z is 49 because the angles are mirrored to each other
then, to find x,
X = 180 - 45 - 49
X = 86
so your answer should be 86.
After 3 hours, Ronald had travelled 195 miles. If he travels at a constant speed, how far in miles did Ronald drive per hour?
Answers
Answer:
65 miles per hour
Step-by-step explanation:
195 ÷ 3
= 65
what is the solution to the system of equations x-y=5 and 3x+7y=-5
Answers
Answer:
Step-by-step explanation:
3(x-y)-3x-7y=3(5)-(-5)
3x-3y-3x-7y=15+5
-10y=20
y=-2, since x-y=5
x-(-2)=5
x+2=5
x=3
So the solution is the point (3,-2)
PLS HELP. If the spinner shown below was used 100 times, how many times can you expect to spin a number greater than 3?
3
60
2
40
Answers
Answer:
1/5 of the times or 20 times
Step-by-step explanation:
because there are 5 sections and 1 possible answer, the answer is 100/5 and that is 20
Aaron answered 7 out of 12 questions correctly on his last English quiz. Find his grade
to the nearest whole percent.
Answers
which would give you 0.58
so that’s 58%
Answer:
Step-by-step explanation:
58%
7/12 into a percentage
A floor tile is shaped like a regular hexagon. The side lengths are 4 cm and the apothem 2√3 cm.
What is the area of the hexagonal floor tile?
Enter your answer as a decimal to the nearest hundredth.
area = cm2
Answers
Answer:
Area of regular hexagon[tex] \approx 41.57 \: {cm}^{2} [/tex]
Step-by-step explanation:
Area of regular hexagon
[tex] = 6 \times area \: of \: one \: triangle \\ \\ = 6 \times \frac{1}{2} \times 4 \times 2 \sqrt{3} \\ \\ = 24 \sqrt{3} \\ \\ = 41.5692194 \: {cm}^{2} \\ \\ \approx 41.57 \: {cm}^{2} [/tex]
Answer:
41.57
Step-by-step explanation:
took the test
Find the quotient (PLEASE HELP)
Answers
[tex]{ \dashrightarrow{ \sf{ \green{ \frac{ {x}^{2} - 5x - 36}{x + 2} \div ( {x}^{2} - 18x + 81)}}}} \\ \\ \\ \\ { \dashrightarrow{ \sf{ \green{ \frac{( {x}^{2} - (9x - 4x)- 36)}{x + 2} \div ( {x}^{2} - (9x + 9x) + 81)}}}} \\ \\ \\ { \dashrightarrow{ \sf{ \green{ \frac{ {x}^{2} - 9x + 4x - 36 }{x + 2} \div( {x}^{2} - 9x - 9x + 81)}}}}[/tex]
[tex]{ \dashrightarrow{ \sf{ \green{ \frac{x(x + 4) - 9(x + 4)}{x + 2} \div (x(x - 9) - 9(x - 9))}}}} \\ \\ \\ { \dashrightarrow { \sf{ \green{ \frac{(x + 4)(x - 9)}{(x + 2)} \div ((x - 9)(x - 9))}}}} \\ \\ \\ { \dashrightarrow{ \sf{ \green{ \frac{( x + 4)(x - 9)}{(x + 2)(x - 9)(x - 9)}}}}} [/tex]
[tex]{ \dashrightarrow{ \underline{ \sf{ \green{ \frac{(x + 4)}{(x + 2)(x - 9)}}}}}} \\ \\ \\ [/tex]
pls help me im dying. I did 22 math study islands and my mom is still making m do more. My brain isnt working i dont remeber how to do this nd i dnt have the motivation to anymore please help me.
Answers
Answer:
Okay its okay
Step-by-step explanation:
but you need to calm down
pls help i give 25 points
Answers
Answer:
find the dirivitev
Step-by-step explanation:
Answer:
2b + 2c
35h + 15m
ef + eg
Step-by-step explanation:
you just individually multiply everything inside the parentheses by the number on the outside.
3) The population of a type of bacteria, starts with 100, and grows at a rate of 300% every
day.
a) Write a formula that models this situation.
b) How many bacteria will there be in a week?
c) How many will there be in a month?
Pls help show work
Answers
b) 100 + 2100 = 2,200 in one week
c) 300 • 30 = 9,000 + 100 = 9,100 in a month with 30 days
What is the slope of this line??
Answers
Answer:
3/2
Step-by-step explanation:
Answer:
m= 8/5
Step-by-step explanation:
Points on the graph: ( -4, -4) and (1, 4)
Slope:
m=(y2-y1)/(x2-x1)
m=(4+4)/(1+4)
m= 8/5
The total of your bill at the restaurant is $42.50.You want to leave a 10%tip. What is the amount of money you would leave for the tip. Brainly
Answers
Explanation is in the file
tinyurl.com/wpazsebu
$42.50 x 0.1= $4.25 tip
I can’t download anything so if anyone can find a way to help with this I’d be grateful (^_^)
Answers
The answer of a second question is {x|x is greater or equal to -3.
The points (4, -6) and (r, 6) lie on a line with slope 3. Find the missing coordinate r.
Answers
Answer:
r = 8
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to 3
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (4, - 6) and (x₂, y₂ ) = (r, 6)
m = [tex]\frac{6+6}{r-4}[/tex] = [tex]\frac{12}{r-4}[/tex] , then
[tex]\frac{12}{r-4}[/tex] = 3 ( multiply both sides by (r - 4))
12 = 3(r - 4) ← divide both sides by 3
4 = r - 4 ( add 4 to both sides )
8 = r
Witch set of base ten blocks models the difference of 47 and 12? 47-12=
Answers
Answer:
the answer is D
Step-by-step explanation:
How to find mean absolute deviation
Answers
To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean|.
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hope it helps
30 divided by 12 pls hurry
Answers
Answer:
2.5 is the correct answer.
Step-by-step explanation:
Hope this helped Mark BRAINLEST!!!
I will give brainliest if you answer please
Answers
ok the answer is b
Step-by-step explanation:
In the story "The Most Dangerous Game." General Zaroff is the character foil for
.
Answers
Answer:
I believe it is Whitney Rainsford
In the story "The Most Dangerous Game." General Zaroff is the character foil for
Step-by-step explanation:
Rainsford
Should be the second one
Enter the correct answer in the box
The number of cups of sports drink that can be filled from a cooler varies inversely with the capacity of each cup. If each cup holds
6 ounces, 128 cups can be filled.
Write an equation that can be used to find the number of cups, c, of sizes ounces that can be filled from the cooler.
Answers
Answer:
the equation should be c=768/s or c s=768.
Step-by-step explanation:
This situation involves inverse variation, so the equation will either take the form c=6/3 or the form cs=k.
To write a general equation for this situation, find the value of k. Use the form cs=k and the point (128,6) since the container can fill 128 cups holding 6 ounces each.
cs=k
(128)x(6)=k
768=k
Using 768 for k, the general equation is c=768/s or cs=768.
The equation for the number of cups for a specific size can be written as c = 768/x.
What is a Linear equation?A linear equation is a equation that has degree as one.
To find the solution of n unknown quantities n number of equations with n number of variables are required.
The amount of drinks carried by each cup is 6 ounces.
And, the total number of cups are 128.
Then,the total amount of drink is 128 × 6 = 768 ounces.
Suppose the number of cups be c.
And, the size of each cup be x.
The following equation can be written for the number of cups as,
c = 768/x
Hence, the equation that describes the number of cups for the given case is c = 768/x.
To know more about Linear equation click on,
brainly.com/question/11897796
#SPJ2
The use of the internet is constantly growing. How many randomly selected adults must be surveyed to estimate the percentage of adults in the United States who now use the internet? Assume we want to be 99% confident that the sample percentage is within 2 percentage points of the true population percentage.
a) Assume that nothing is known about the percentage of adults using the internet.
b) Assume it was estimated that 72% of adults in the United States use the internet.
Answers
Find (ƒ – g)(x) ƒ(x) = 3x2 – 2x g(x) = 9x2 – x + 7
Answers
Answer:
Step-by-step explanation:
Swear were in the same math bro
f(x)=3x^2-2x g(x)=9x^2-x+7
-6x^2-x-7
PLZZZ HELP 25 POINTS HERE PLZZZ HELP
Answers
Answer:
Step-by-step explanation:
The first one is a wide U above the X axis.
The second one is an upside down U below the X axis.
The third one is a narrow U above the X axis.
The center of the U should always be the origin.
Answer:
Step-by-step explanation:
Lily bought a bottle of apple juice. She drank 12 1 2 of the apple juice and her sister drank 38 3 8 of it. What fraction of the bottle of apple juice did they drink altogether?
Answers
Answer:
50 7/8
Step-by-step explanation:
12 4/8 + 38 3/8 = 50 7/8
The graph of y = f(x) is shown below. What are all of the real solutions of f(x) = 0?
Answers
Answer:
0
Step-by-step explanation: