Which two ratios represent quantities that are proportional?
A. 18/15 & 24/20
B. 4/6 & 9/12
C. 9/14 & 45/56
D. 33/18 & 66/26
Answer:
Option A 18/15 & 24/20
Step-by-step explanation:
FILL IN THE BLANK
If an equation has one solution.. It means.. Only ______ Number will make this equation true. Can you think of an equation that would make this equation true?
Answer:
One
....................
Answer:
1
Step-by-step explanation:
Because if you plug in any other number than that 1 number (the solution) it will make the equation false. So, there will only be 1 number that can make the equation true.
8(-b-4)
Simpif the expression
Answer:
-8b - 32
Step-by-step explanation:
Distribute the 8 to each term in the parentheses:
8(-b) = -8b
8(-4) = -32
Add these two terms together:
-8b - 32 is the simplified expression
Hey there!
ANSWER: [tex]-8b-32[/tex]EXPLANATION:[tex]8(-b-4)[/tex]
Separate 8 and -b-4 with parenthesis and also add (-b+-4)
[tex](8)(-b+-4)\\(8)(-b)+(8)(-4)=-8b-32\\-8b-32[/tex]
[tex]-8b-32[/tex] is your answer.
Hope this helps :)
[tex]\text{-TestedHyperr}[/tex]
EINER
Evaluate the expression.
202 + 6(9 + 3) =
ME
DONE
Answer:
274
Step-by-step explanation:
202 + 6(9 + 3) =
Use order of operations and multiply out first.
202 + 6*9 + 6* 3 =
202 + 54 + 18 = 274
Answer:
274
Step-by-step explanation:
Use the order of operations to solve.
202 + 6(9 + 3) = First, you add what is in the parenthesis.
202 + 6(12) = Then you multiply.
202 + 72 = Then add
202 + 72 = 274
I need the answer so please help it is worth 88 points
Answer:
24
Step-by-step explanation:
If she did all 3of them today then you subtract a day from each one then it would look like this
5+4+15=24
What's the question? You can edit if you're on pc I think so you can add a picture or type it up. I'll also edit this so I can help u :)
2. Kate is a professional musician. She wants to make an essential purchase of an upgraded used bass guitar
for her work. She found the following prices for the same make and model bass guitar from various sellers:
| $699.$599, $699.$680, $590, $720, $650, $800
What is the mean price? Round your answer to the nearest cent.
What is the median price?
What is the mode price?
Answer:
a. What is the mean price? Round your answer to the nearest cent. $679.63
b. What is the median price? $689.50
c. What is the mode price? $699
Step-by-step explanation:
The mean price, rounded to the nearest cent is $679.63, the median price is $689.5 and the mode price is $699.
What is Mean, Median and Mode?The mean is the ratio of the sum of all numbers and total numbers in the list. The median is the middle value in a list ordered in ascending order. The mode is the most frequently occurring value on the list.
In our question, given data:
$699, $599, $699, $680, $590, $720, $650, $800
Mean is found by dividing by sum all the prices and then divided by total terms.
Sum all prices = ($699 + $599 + $699 + $680 + $590 + $720 + $650 + $800) = $5437
Mean = [tex]\frac{5437}{8}[/tex] = $679.625
The round of mean value to the nearest cent is $679.63.
To find median, arrange the data list in ascending order and then find the middle value. Since in our data list, there are 8 terms (even). Therefore take average of the two middle values to find median.
Ascending order ⇒ 590, 599, 650, 680, 699, 699, 720, 800
Midian = [tex]\frac{680 + 699}{2}[/tex] = $689.5
Mode is the most frequently occurring value in the data list, in our data list, 699 comes twice.
∴ Mode = $699
Hence Mean = $679.63, Midian = $689.5, Mode = $699.
To learn more about Mean, Median and Mode, refer to the link:
https://brainly.com/question/15323584
#SPJ2
When is there no solution to a compound inequality is it AND or OR
Answer:
The solution could begin at a point on the number line and extend in one direction. 3. In cases where there is no overlap between the two inequalities, there is no solution to the compound inequality.
Step-by-step explanation:
Evaluate the problem -3-(+4)
Answer:
-7
Step-by-step explanation:
-3 - (4) = ?
Remove parentheses:
= -3 - 4
Subtract the numbers:
= -7
An academic advisor calculated the mean GPA for college freshmen to be 2.33, with a standard deviation of 1.06. The advisor knows that there is a relationship between high school GPA and freshman-year GPA. If the advisor uses each student's high school GPA to predict his/her freshman-year GPA, what happens to the average error in prediction (relative to not using high school GPA to predict freshman-year GPa.
Answer:Average error will be less
Step-by-step explanation: Prediction error refers to the difference between the the actual and predicted value of an observation. Using correlation analysis or study, The level or degree of correlation or relationship between two measured variables usually determines the variation or measure of the prediction error. If there is no relationship or correlation between two measured variables, if such model is used to make prediction, the average prediction error will be very high. However, since it is stated that there exist a relationship between high school GPA and Freshman-year GPA, then making prediction based on this assertion will lessen the average prediction error.
Draw a discrete graph that has a domain of 0<=x<=8 and a range of (2,4,6,8,10).Write a situation for the graph.(You don't have to draw the graph,I just want the situation)
Answer:
X² - Y² = 1
X² = (X - 0)²
Y² = (Y - 0)²
[(X - 0)²/1] - [(Y - 0)²/1] = 1
Centro (0 , 0)
a² = 1 : b² = 1
c² = 1 + 1 = 2
c =
Focos :(0 +/- 1.414213562 , 0)
F1 : ( -1.414213562 , 0)
F2 : (1.414213562 , 0)
Vertices: (+/- 1 , 0)
V1: (1 , 0)
V2: (-1, 0)
Te anexo la grafica
Step-by-step explanation:
A spinner is divided into 12 equal-sized sections. Each section is labeled with a number.
Lee spins the spinner once. Which outcome is most likely?
Answer:
It is a one and twelve chance for each section
Step-by-step explanation:
please help !!! 3x+8y
x = 7
y = -2
Answer: 5
Step-by-step explanation:
you do each variable individually first, 3(7)=21, 8(-2) is -16, then you add them, 21-16=5 so that is your answer
Jimmy earns $9.25 per hour working at a local grocery store. If Jimmy earned $74 last week, which equation would be used to determine h, the number of hours he worked last week?
PLEASE HELP U GET BRINLIEST IF ANDMSWERED
Answer:
b=10
Step-by-step explanation:
I think the other part would be √-300 √3 but that's the best i could do
(3 1/3 −1 5/6 ) ÷ 2 1/7 −1 1/3 · 2.4
Answer:
Exact form -5/2 Decimal form -2.5 Mixed number -2 1/2
Step-by-step explanation:
Rocko paid 12.50 for 25 game tickets
Given the following sets.
A = {0, 1, 2, 3)
B = (a, b, c, d]
C = {0, a, 2, b)
Find BC
Answer:
C={0, a, 2, b, 4, c,}
Step-by-step explanation:
I thing you are doing patterns but I hope this helps
What is the variable used to predict another variable called________.A. Independent variableB. Dependent variableC. Moderating variableD. Intervening variable
Answer:
A. Independent variable
Step-by-step explanation:
The prediction of a variable can be done if we have the independent variable. Which is the required variable that is used to determine the value of the other variable. The variable to be predicted is dependent on the required variable.
An independent variable can also be referred to as a predictor variable. When its value is known, it can be used to obtain the dependent variable.
4. Each set of data was collected from surveys to answer statistical questions. Select all of the data sets that represent numerical data. a. (1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.8, 1.9, 2, 2, 2.1, 2.5) b. (Red, Red, Yellow, Yellow, Blue, Blue, Blue) c. {45, 60, 60, 70, 75, 80, 85, 90, 90, 100, 100, 100) d. (-7, -5, -3,-1,-1,-1,0} e. 98.2, 98.4, 98.4.98.6, 98.6, 98.6, 98.6, 98.7, 98.8, 98.8) f. (Yes, Yes, Yes, Yes, Maybe, Maybe, No, No, No} g. {A, A, A, B, B, B, C, C, C]
Answer:
Options (A), (C), (D) and (E).
Step-by-step explanation:
There are two types of sets in the given options.
1). Numerical data - Data which shows the numeral values or the numbers which tells the exact meaning of quantities like length, width or height.
2). Categorical data - Data which has no numeral values or no logical order.
Therefore, sets which show the numerical data are,
Option (A)
Option (C)
Option (D)
Option (E)
Answer:
A, C, D, E
Step-by-step explanation:
Solve the equation for x.
2
3
x −1
9
x + 5 = 20
AnsweSolve the equation for x. 2 3 x −1 9 x + 5 = 20
Step-by-step explanation:
Answer:
X=27
Step-by-step explanation:
In a class of 25 students, 24 of them took an exam in class and 1 student took a make-up exam the following day. The professor graded the first batch of 24 exams and found an average score of 74 points with a standard deviation of 8.9 points. The student who took the make-up the following day scored 64 points on the exam. what is the new average
Answer:
The value is [tex]\mu_n = 73.6[/tex]
Step-by-step explanation:
From the question we are told that
The total number of students is [tex]N = 25[/tex]
The number of student that took exam in class is n = 24
The number that took make up exam is k = 1
The average score of the first 24 students is [tex]\mu = 74[/tex]
The standard deviation is [tex]\sigma = 8.9[/tex]
The average score of the student who took make up test is [tex]\= x = 64[/tex]
Generally the new average is mathematically represented as
[tex]\mu_n = \frac{( n * \mu ) + \= x }{N}[/tex]
[tex]\mu_n = \frac{( 24 * 74 ) + 64 }{25}[/tex]
[tex]\mu_n = 73.6[/tex]
1. Which answer is the same as 6 tens and 27 ones?
A 33
B 87
C 62
D 82
The answer is 87, hope this helps.
9.a )Explain why plane JKL is not an appropriate
name for the plane below.
9.b) Give three names for the plane that would be appropriate
Answer:
I will attach the missing drawing with the answer.
9.b)
Plane JKM
Plane JLM
Plane KLM
Step-by-step explanation:
The drawing for this question is missing. I will attach it with the answer.
9.a) Plane JKL is not an appropriate name for the plane because all of three points lie in the same line.
Through a line pass infinite planes. The plane JKL doesn't define a unique plane. That's why plane JKL isn't an appropriate name for the plane.
9.b) We can name the plane using three points that don't lie in the same line.
Three possible names for the plane are :
Plane JKM
Plane JLM
Plane KLM
can someone help me . Derek collects coins that have the names of all 50 US states. He has collected 12 different state coins in two and a half months. How long will it take to collect the 50?
3. (03.01 MC)
Which expression is equivalent to 4(9 + 7)? (1 point)
36 + 7
13 + 11
36 + 28
13 + 7
Answer:
36+7
Step-by-step explanation:
4(9+7) = 43
36 + 7 also equals 43
Step-by-step explanation:
4(9+7)
4(16)
64
36+28 is the equivalent as it amounts to 64
A guy wire supports an antenna tower, as shown at the right. The bottom of the wire is secured in the ground 30 feet from the base of the tower. The top of the wire is secured to the tower at a height of 30 feet above the ground. How long is the wire? Round your answer to the nearest tenth of a foot.
Answer:
The wire is approximately 42feet long
Step-by-step explanation:
We can mentally sketch out the shape that is formed between the guy wire and the antenna tower. This is simply a right-angled triangle with the opposite side being the height of the antenna (30 feet). The adjacent side is the distance on the ground between the point where the wire was fastened and the base of the antenna.
The hypotenuse side is the length of the wire we are looking for.
Parameters are given as:
Opposite : 30ft
Adjacent: 30ft
Hypotenuse: x feet
The hypotenuse = [tex]\sqrt{opp^2 + adj^2}[/tex]
Hypotenuse =[tex]\sqrt{30^2+ 30^2} \approx 42ft[/tex]
Simplify the expression: 2(2 + 6g)
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{4 + 12g}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{2(2 + 6g)}[/tex]
Distribute 2 through the parentheses
[tex] \longrightarrow{ \sf{2 \times 2 + 2 \times 6g}}[/tex]
[tex] \longrightarrow{ \sf{4 + 12g}}[/tex]
Hope I helped!
Best regards! :D
Which point is located at (5,-2)?
8
Na os
point A
point B
point C
point D
3 4 5 61 x
a
do
C
Answer:
D
Step-by-step explanation:
If you look at the graph you can clearly see that the x coordinate 5 and the y coordinate -2 line up with point D
please help me i need answers asap please
Answer:
-22
Step-by-step explanation: you only add when it is like -8-(-12) that means you add them together but in this case all you do is subtract -8-14 so basically you cancel out the plus sign. Hope this helps.
Pleasee help i forgot what the sum of means
Choose the expression that best represents the phrase below.
... the sum of 7 and 15...
A. 15-7
B. 7 + 15
C. 15.7
D. 15 = 7
E. 7 = 15
F. 7-15
Answer: the answer is b
Step-by-step explanation:
