Answer:
8 feet.
Step-by-step explanation:
If we know the shadow (30 ft) of a tower (15 ft), we can use use the ratio
\(\frac{30}{15}=\frac{16}{x}\) where 'x' is the height of the telephone pole. Cross multiply, and we get the equation \(240=30x\). The rest of the problem is pretty straightforward, we divide both sides by 30 to find x. In the end, you will find that the height of the telephone pole is 8 feet.
Hope this helped!
The SI unit for work, the joule, is equal to _____.
100 newtons
1 newton × 1 meter
Answer:
1 joule
100 Newton Meters = 10.197 Kilogram-force Meter
100 Kilogram-force Meter = 980.665 Newton Meters
Step-by-step explanation:
Answer:
1 joule
Step-by-step explanation:
Your Welcome (; (:
Han spent 50 minutes practicing the piano over the weekend. Tyler practiced the clarinet for 84% as much time as Han practiced the piano. How long did he practice?
I think it's 126
don't quote me on that, though
Answer:
The correct answer is 42 minutes.
Step-by-step explanation:
84% of 50 is 42.
HELP NEEDED ASAP PLEASE !!!!!!!!!!
Divide 17.9 by 2.38. Round your answer to the nearest tenth.
0.7
7.5
0.8
7.6
Answer:
7.5
Step-by-step explanation:
You divide 17.9 by 2.38. That would give you 7.521008403361345.
Rounding to the nearest tenth would mean to round till you have a number right after the decimal point. When you round, you would get 7.5 since 2 isn’t enough to change the five to a six.
Hope that helps!! Have an amazing day!!
A movie-theater employee notes an inverse relationship between the theater's popcorn sales and its nacho sales. On a given night, the theater makes $1,512 from popcorn sales and $1,584 from nacho sales. If on the next night the employees sell $1,848 of popcorn, how much is earned from nachos?
Answer:
Using proportions, it is found that $1,225 is earned from nachos.
This question is solved by proportions, using a rule of three.
The measures have an inverse relationship, hence line multiplication is applied instead of cross multiplication.
When the theater makes $1,540 from popcorn sales, it makes $1,330 from nacho sales. How much is earned from nachos when $1,672 is earned from popcorn?
The rule of three is:
$1,540 - $1,330
$1,672 - $x
Applying line multiplication:
$1,225 is earned from nachos.
Pls help!
What measure of center best represents the data set?
Drag and drop the correct answer into the box.
Data Set
{37, 39, 38, 78, 36}
A) mean only
B) median only
C) mode only
D) mean or median
Answer:
the median only
Step-by-step explanation:
One month, a pair of shoes cost $54.00. The next month, they were only $38.00.
Part A: What was the percent of the discount? Round to the nearest whole number.
Part B: How much would the shoes cost if they were 45 % off.
Part C: Assuming you bought the shoes on sale for 45%. The sales tax is 7%. How much is your total cost?
Answer:
part A:34.48276% to nearest whole number is 34%
partB:the shoes will cost $31.90
part C:the shoes will cost $34.13
Step-by-step explanation:
for part A: $58-$38=$20
to get the discount in percentage will be;$20/$54 ×100=$34.48
I dont get this pls help
Answer:
First and second are functions, third isn't
Step-by-step explanation:
PLS GIVE BRAINLIEST
Answer:
1 and 2 are vertical
Third one is NOT
rewarding brainly for correct answer and if you dont get brainly lmk if you want me to make a post to give it to you or try and look for an unanswered question i posted
Answer:
-1, 7
Step-by-step explanation:
Help ASAP!!! I'll give brainlest to whoever explains it right
Please help I’m confused
A. 125
B. 15
C. 3
D. 5
hello
the answer to the question is A) 125
(if you need explanation, let me know in the comments)
explanation:
when you'd want to make a three letter password such as:
___ × ___ × ___
you can put 5 different letters in each blank space:
_5_ × _5_ × _5_
hence the answer is:
5 × 5 × 5 = 125
25 students were randomly sampled about their favorite class,
Math=18 students
Science=2 students
English=2 students
Other=3 students
Predict the number of students in an entire school of 300 students whose favorite subject is math.
George drove 240 miles to his grandmother's house. The graph below shows the relationship between the distance he traveled and time. What does the slope of the graph represent? A. George's speed in minutes per mile. B. The total distance he has traveled. C. The total distance he has left to travel. D. George's speed in miles per minute.
Answer:
D. George's speed in miles per minute.
Step-by-step explanation:
This answer is quite confusing because A. and D. are very similar but here is my reasoning.
The slope of the line is 1.
So B. and C. isn't right because they didn't travel 1 mile and they don't have 1 mile left to drive.
Now it is between A. and D. (1 minute per mile and 1 mile per minute)
When talking about speed the distance comes first (Ex. 20 miles per hour), so the best answer is D.
Picture of the questions are below.
Step-by-step explanation:
Look at the picture below
Answer:
Answer is picture :)
Two lines, C and D, are represented by the equations given below:
Line C: y = x + 10
Line D: y = 3x + 2
Which of the following shows the solution to the system of equations and explains why?
answer choices
(5, 17), because one of the lines passes through this point
(5, 17), because the point lies between the two axes
(4, 14), because the point does not lie on any axis
(4, 14), because both lines pass through this point
Answer:
(4,14) because both lines pass through it.
Step-by-step explanation:
A "solution" to a system of equations is simply a point that both lines pass through.
First image is the solution found through graphing and the second image is the solution found through substitution.
The daily high temperatures for Barrow, Alaska, are shown in the table below. November 29 -5.2. November 30- 3, December 1. -1.5, December 2nd -3.3, December 3rd -3.8, December 4th -9.2 What was the mean (average) temperature for Barrow, Alaska, for November 29 through December 4?
Answer:
The answer is -4.3
Step-by-step explanation:
You need to add all of the temperatures together then divide it by the amount of temperatures.
All of the temperatures equal -26
You divide by the amount of temperatures which is 6
(-42.65,4.8) and (2.65,3.6) what is the slope
Answer:
-4/151
Step-by-step explanation:
We can find the slope by
m = (y2-y1)/*x2-x1)
= (3.6 - 4.8)/(2.65 - -42.65)
= (3.6 - 4.8)/(2.65 +42.65)
= -1.2 / 45.3
-4/151
If the relationships below are given in the form (input, output), which pairing always describes a function? (a person’s age in years, that same person’s height in inches) (a person’s weight in pounds, that same person’s height in inches) (a person’s height in centimeters, that same person’s height in inches) (a person’s telephone number, that same person’s height in inches)
Answer:
A function is a mathematical relation in which each input (domain value) is associated with exactly one output (range value). In other words, for a relation to be a function, each input can have only one corresponding output. Let's analyze the given pairings:
(a person’s age in years, that same person’s height in inches) - This can be a function because one person's age in years should correspond to a single height in inches.
(a person’s weight in pounds, that same person’s height in inches) - This can also be a function because one person's weight in pounds should correspond to a single height in inches.
(a person’s height in centimeters, that same person’s height in inches) - This can be a function because one person's height in centimeters should correspond to a single height in inches.
(a person’s telephone number, that same person’s height in inches) - This may not necessarily be a function. It's possible for two different people to have the same height in inches but different telephone numbers.
So, the pairings that always describe a function are:
(a person’s age in years, that same person’s height in inches)
(a person’s weight in pounds, that same person’s height in inches)
(a person’s height in centimeters, that same person’s height in inches)
These three pairings meet the criteria of a function, where each input corresponds to a unique output.
The pairing that always describes a function is option C. (a person’s height in centimeters, that same person’s height in inches)
How did we arrive at this assertion?A pairing describes a function when each unique input (domain element) is associated with exactly one unique output (range element). In other words, there should be no ambiguity or multiple outputs for a single input. Let's analyze the given pairings:
1. (a person’s age in years, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same age, but they might have different heights. So, there can be multiple outputs for the same input (age).
2. (a person’s weight in pounds, that same person’s height in inches): Similar to the first pairing, this may not always describe a function because different people can have the same weight but different heights.
3. (a person’s height in centimeters, that same person’s height in inches): This pairing describes a function because for each unique height in centimeters, there is only one corresponding height in inches.
4. (a person’s telephone number, that same person’s height in inches): This pairing may not always describe a function because multiple people can have the same telephone number, but they might have different heights. So, there can be multiple outputs for the same input (telephone number).
So, the pairing that always describes a function is: (a person’s height in centimeters, that same person’s height in inches)
learn more about function describing pairs: https://brainly.com/question/31919824
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I need help plz step by step explanation
Answer:
x=2,y=7
Step-by-step explanation:
Using elimination method:
Add both equations
8x=16
x=2
Put x=2 into equation 2
3•2+6y=48
6y=42
y=7
Can I get help plzzz
`1\frac{1}{2}`quarts of sparkling water and `\frac{3}{4}`quart of grape juice. a. How much sparkling water would you need to mix with `9` quarts of grape juice? b. How much grape juice would you need to mix with `\frac{15}{4}`quarts of sparkling water? c. How much of each ingredient would you need to make `100` quarts of punch?
Answer:
Step-by-step explanation:
18 quarts
What is the surface area of this figure in square centimeters?
a rectangular prism with dimensions, right triangle base 3 cm by 4 cm, the height of the prism is 7 cm
Answer Choices:
75
60
96
84
Answer:
96cm
Step-by-step explanation:
front/back triangles: (4 * 3) / 2 = 6cm
bottom rectangle: 4 * 7 = 28cm
side rectangle (left): 3 * 7 = 21cm
slanted rectangle: pythagoras - 3^2 + 4^2 = x^2
9 + 16 = x^2
25 = x^2
square root of 25 = 5
x = 5
7 * 5 = 35cm
6 * 2 + 28 + 21 + 35 = 96cm
I'm confused about this!
Answer:
16
Step-by-step explanation:
im presuming 33 own only a fish, and 20 own only a gerbil
so 32/100 pupils own both a fish and gerbil
this can be written as 32% or 0.32 for probabilty
so all u do now is 50 x 0.32
which is 16
Answer: It’s 16
Step-by-step explanation:
Pls help on 1-3 ASAP
Answer:
1: Lowest-77 Higest: 99 Center: 88 Spread: 22
Step-by-step explanation:
Answer:
1)
Lowest: 77
Spread: 77 through 99
Highest: 99
Center: 88
2)
Lowest: 24
Spread: 24 through 84
Highest: 84
Center: 52
Step-by-step explanation:
The spread is just the numbers you are counting to so like in number 1 it is 77 through 99, does that make sense? Hope this helps!
The average high temperatures in degrees for a city are listed.
58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57
If a value of 98° is added to the data, how does the mean change?
A. The mean increases by 8.2°.
B. The mean decreases by 8.2°.
C. The mean increases by 1.4°.
D. The mean decreases by 1.4°.
Answer:
C. The mean increases by 1.4°.
Step-by-step explanation:
if you count the number of numbers in the set {58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57} it is 12 numbers.
The formula for mean is, \(mean=\frac{sum- of- the- terms}{number-of-terms}\)
so if you add all the numbers here →, {58, 61, 71, 77, 91, 100, 105, 102, 95, 82, 66, 57} you get a sum of 965.
Now 965 ➗12= 80.4166666667
If 98 is added we add 98 to 965 and get 1063.
That also means an additional number is being added so 12+1 = 13.
Now, 1063➗13= 81.7692307692
Ok now we approximate, 80.4166666667 is about 80.4 and 81.7692307692 is about 81.8.
Now we subtract 81.8-80.4 and get 1.4.
It was an increase of 1.4 in the mean so the answer is C.
SORRY IF MY EXPLAINING IS BAD ITS MY 1ST OR 2ND TIME EVER ANSWERING!! :)your family just ate dinner at a restaurant your parents are trying to calculate the tip for your server should they estimate by rounding or use exact numbers
Answer:
estimate by rounding
Step-by-step explanation:
calculating exact numbers will take to long
Help please ill give brainliest
Answer:
I'm pretty sure triangle 6 is similar to triangle 1
Step-by-step explanation:
please help give brainliest
Answer:
Step-by-step explanation:
-4,5
What is the area of the front side of the fifty-cent piece? Use 3.14 for π. Round to the nearest hundredth if necessary.
30.61mm
Answer:
30.61
Step-by-step explanation:
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Students are making lemonade from a powdered lemon drink mix. Adam mixes 3 cups of water and 4 cups of powdered lemon mix. Grace mixes 2 cups of water and 3 cups of powdered lemon mix. Use Adam and Grace’s percent of powdered lemon mix to determine whose mix will be more lemony.
Answer:
Ariana's percentage of the powdered lemon mix is 85%.
Andres's percentage of the powdered lemon mix is 48%.
Step-by-step explanation: