Please answers these questions! I’ll give Brainliest ! This is the last slide needed for my math and it’s due Monday!
Answers
Answer:
The first question should be \(\frac{12}{7} \) or 1\(\frac{5}{7} \)
The second question should be 88/9 or 9\(\frac{7}{9} \)
Step-by-step explanation:
The mistake in the first question is that they multiplied both the numerator and the denominator by 3, which was incorrect because 3 is essentially 3/1.
The second question is incorrect because they should've converted the fraction into a mixed number, e.g. 11/3 and 8/3, then multiply to get the product
Related Questions
Which expression is equivalent to: -3(0.15 - 0.2 + 0.25b)
Answers
-.45+.6-.75b
.15-.75b
-.75b = -.15
b= -.15/-.75
b = .2
-.45+.6-.75b
15-.75b
-75b = -.15
b=-.15/-.75
b=.2
the first image is the question the second is the answer, and i need the in between of how the heck do i do this. the final is tmrw please help!
Answers
Answer:
Step-by-step explanation:
sir in the graph every point is (X,Y) so you should choose consecutive random numbers for the X values for the first point after that put the values you choose In the equations so now you have just numbers in the equation .. add, subtract and multiply at the end you will get a value .. ok this Y for the first point .. mark this point on the graph and continued this process until it reached at least 3 points, and connected between them.
Note : do this with each equation separately and do not connecte between two points for two different equations
the equation with x will become as line
the equation with x² will become as arch
after you finsh drwaing see the points that the tow equation are touching within and write them. Usually it is two points
Step-by-step explanation:
First, set the equations as equal to eachother because both equal y:
\(x^2-6x-7=x+1\)
Now, solve to get everything on one side of the equation so that the other side of the equation is set to 0:
\(x^2-7x-8=0\)
Now use the sum product pattern:
\(x^2+x-8x-8\)
(as you can see, the above equation is equivalent to the previous equation, but there are now four values instead of three)
Now take the common factor from the two pairs:
\(x(x+1)-8(x+1)\)
Rewrite in factored form:
\((x-8)(x+1)\)
Now to get both values of x, set each factored equation to 0 and solve for x (becuase remember, the equation still equals 0):
\((x-8)=0\\x=8\)
\((x+1)=0\\x=-1\)
NOW that we have both values of x, we can subsitute them into EITHER equation and solve to get the corresponding y values:
\(y=(8)+1\\y=9\)
\(y=(-1)+1\\y=0\)
So that's how we solve to get these coordinates: (8,9) & (-1,0).
Good luck on your final and I hope I was able to help :)
pattern with numbers
write the correct number to complete the pattern.
Answers
Answer:
295,296,297
Step-by-step explanation:
Hope it's helpful. :-)
....................
Answers
Answer:
?
Step-by-step explanation:
A contractor is tiling your bathroom with one-foot square tiles. How many tiles are needed for the job? PLS HELPPP
Answers
Answer:
Depends on the bathroom
Step-by-step explanation:
Basically since I don't know the bathroom length and width, Ima just cut it down for you.
It is your bathroom area (length*width) divided by the area of the tiles, which is 1*1=1 foot^2(square)
Also it depends on the unit you used for the bathroom, you gotta transfer the unit for the bathroom length and width into feet.
So you should get number for bathroom area with the unit feet square.
There are x students in Mrs. Schwartz's third-grade class. One fewer than half the students have brown eyes. Six fewer children have blue eyes than have brown eyes. The rest of the students have green eyes. How many students have green eyes?
F. 8
E. 7
G. x/2-7
H. x - 8
Answers
Blue Eyes: 1/2x-6
Let the students who have green eyes be y.
1/2x-1+1/2x-6= x-y (Because the RHS is the students with brown and blue eyes and hence x-y on the LHS)
x-7=x-y
-y=-7
y=7
Therefore 7 students have green eyes.
(E)
Please NO LINKS
ONLY CORRECT ANS
Answers
Answer:
D
Step-by-step explanation:
just cross multiply
A person places $26300 in an investment account earning an annual rate of 3.8%, compounded continuously. Using the formula V=Pe∧{rt}, where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 19 years.
Answers
Answer:
V = $ 54135.92
Step-by-step explanation:
The formula for compounding continuously is given as:
V = P(e)^rt
V = Amount of money in the bank after 19 years
P = Principal amount initially invested = $26300
e = base of natural log
r = Interest rate = 3.8% = 0.038
t = time in years = 19
We have to calculate the value of V. Substitute all values into the given formula:
V = P(e)^rt
V = (26300)(e)^(0.038 · 19)
V = (26300)(2.718)^(0.722)
V = (26300)(2.0584)
V = $ 54135.92
Answer:
54139.76
Step-by-step explanation:
HELP ASAP PLEASE
Given the inequality 5(n − 4) < 4(n + 15), determine which integer makes the inequality false.
S:{80}
S:{15}
S:{5}
S:{−9}
Answers
Answer:
-9
Step-by-step explanation:
5(-9-4)
5(-13)
-65
4(-9+15)
4(6)
24
-65<24 so -9 is false because -65 is not smaller than 24
The solution is Option A.
The value of n which makes the inequality 5 ( n − 4 ) < 4 ( n + 15 ) false is when n = 80
What is an Inequality Equation?
Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is given by
5 ( n − 4 ) < 4 ( n + 15 )
Now , on substituting the value of n as 80 in the inequality equation , we get
5 ( n − 4 ) < 4 ( n + 15 )
when n = 80
5 ( 80 - 4 ) < 4 ( 80 + 15 )
5 ( 76 ) < 4 ( 95 )
380 = 380
So , the inequality will become false as the two sides of the equation will result in value 380 when n = 80
Hence ,
The value of n = 80 in the inequality equation 5 ( n − 4 ) < 4 ( n + 15 ) will make it false
To learn more about inequality equation click :
https://brainly.com/question/11897796
#SPJ2
Let’s say a town has a population of 34,567 people in 2001. And the population is decreasing by 2.2%. What is the population going to be in 2018?
Answers
The answer you are looking for is 33807
Answer:
y:=33806.526
y=33807.(Rounded off)
Step-by-step explanation:
y=(34567(1−0.022))
Solve for y
y=50016903263=33806500263=33806.526
Steps for Solving Linear Equation
y=(34567(1−0.022))
Subtract 0.022 from 1 to get 0.978.
y=(34567×0.978)1
Multiply 34567 and 0.978 to get 33806.526.
y=33806.5261
Calculate 33806.526 to the power of 1 and get 33806.526.
y=33806.526
Assign y
y:=33806.526
y=33807.
f the bathtub holds a total of 46.2 gallons, how many minutes would it take to fill the entire tub? Write an equation in one variable to help you solve the problem. The variable represents the unknown time in minutes.
Answers
PLEASE HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! God bless merry Christmas and happy new year and stay safe and good luck in life! God bless y’all! :)
Answers
Answer:
Either 2 or 3 but i believe it's "Yes, all the sample means are less than 10."
Step-by-step explanation:
Find Mean of means
(7+4+5+8)/4
6
More Math about Slope
thx
(for questions 3 and 4, i know that one of them is 0 and the other is unidentified, but i don't know which one is which)
(and the 5th screenshot has the answer choices if needed)
happy easter-eve
Answers
Answer: 3 is 0 and 4 is unidentified
Step-by-step explanation:
The horizontal line has a slope of zero, think of it as you can walk on it or not. Since four has all X's as eight that creates a vertical slope which cannot be walked on.
Thanks for the opportunity to help you! :)
1. m/slope=6/1 or 6. Use the first two points for the formula y₂-y₁/x₂-x₁. B
2.m=-4 or -12/3. Use the slope formula and substitute the points. G
3. m=zero. I
4.m=undefined. A
I NEED CORRECT AND DETAILED STEP BY STEP ANSWERS!!
PLEASE DONT COMMENT RANDOM THINGS OR IRRELEVANT THINGS
!!!!
PERSON WHO ANSWERS CORRECTLY WILL RECIEVE 10 POINTS !! AND BRAINLIEST!! AND A THANKS!!
Answers
Answer:
Step-by-step explanation:
Let's start by finding the sum of the list of nine numbers, which we can then use to find the value of the remaining two numbers in the list:
Sum of the nine numbers = mean * number of numbers = 17 * 9 = 153
Let the three modes be a, b, and c. Since they are modes, each of them must appear at least twice in the list.
Let's assume that the numbers in the list are arranged in non-decreasing order. Then we have:
a ≤ b ≤ c
Since a, b, and c are modes, each of them must appear at least twice in the list. We have three cases to consider:
Case 1: Each of a, b, and c appears exactly twice in the list.
In this case, the remaining three numbers in the list are:
x1 = a + 4
x2 = b + 1
x3 = c - 8
We know that x1, x2, and x3 are distinct and not modes of the list. Therefore, they must be among the six numbers in the list that are not equal to a, b, or c. Let's call these numbers d, e, and f, where:
d ≤ e ≤ f
Then we have:
a + b + c + x1 + x2 + x3 + d + e + f = 153
3(a + b + c) + 3(d + e + f) = 153 + x1 + x2 + x3
Since x1, x2, and x3 are distinct and not modes of the list, we have:
x1 > c
x2 > b
x3 < c
Therefore, we can write:
x1 = c + k1
x2 = b + k2
x3 = a + k3
where k1, k2, and k3 are positive integers.
Substituting these expressions into the equation above, we get:
3(a + b + c) + 3(d + e + f) = 153 + a + b + c + k1 + k2 + k3
Simplifying, we get:
2(a + b + c) + 3(d + e + f) = 153 + k1 + k2 + k3
Since k1, k2, and k3 are positive integers, the right-hand side of this equation is at least 3. Therefore, we have:
2(a + b + c) + 3(d + e + f) ≥ 156
We want to find the value of 3(a + b + c), so let's isolate this term:
3(a + b + c) = 2(a + b + c) + (a + b + c)
Since the left-hand side is three times the sum of a, b, and c, and the right-hand side involves the sum of a, b, c, d, e, and f, we need to express d, e, and f in terms of a, b, and c.
From the inequality a ≤ b ≤ c, we have:
a + k3 ≤ b + k2 ≤ c + k1
Adding 4 to the first inequality, we get:
a + k3 + 4 ≤ b + k2 + 4 ≤ c + k1 + 4
Adding -8 to the second inequality, we get:
a + k3 + 4 ≤ c + k1 - 4 ≤ b + k2
Therefore, we can choose d = a + k3 + 4, e = c + k1 - 4, and f = b + k2. Then
One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years’ time, I will be twice as old as my brother.” How old are they each now?
Good Luck!!
Answers
Answer:
17
Step-by-step explanation:
Let us suppose two years ago my brother's age was x years
Then, my age was 3x
Three years from now, my brother's age will be (x +2+3) = (x+5) years
And my age will be (3x+2+3) = (3x+5) years
But it is given that i will be twice as old as my brother.
So, 2(x+5)= (3x+5)
or, x= 5 years
So my brother's present age is 5+2= 7 years
And my age is 5*3+2= 17 years
PLSS HELP MEEEEEEE ILL GIVE BRAINLIEST IF CORRECT
Answers
Answer:simply easy , A= -1/4 B= 0.5 C= 3/4 D -0.75
Step-by-step explanation:
B 0.5
C 3/4
D -0.75
Write an expression using fractions to show how to determine the amount that each person will pay. Then calculate each person's contributions showing all steps in long division.
"My chart"
Friend#1: $9.34
Friend #2: $16.17
Friend#3: $9.69
Friend#4: 9.8
Answers
Starting at sea level, a submarine descended at a constant rate to a depth of −56 mile relative to sea level in 34 minutes.
The submarine continues to descend at the same rate. What is the submarine's depth relative to sea level after the first minute?
Enter your answer as a simplified mixed number in the box
15 points
Answers
Answer: 1 13/20
Step-by-step explanation:
Answer:
1 13/20
Step-by-step explanation:
i dont know how to explain it honestly
jeff's credit card charges an annual rate of 5% simple interest. The balance on his card is $300, and he makes interest-only payments for one year. How much interest will he have paid by he end of that year?
Answers
Answer: 60
Step-by-step explanation:
A rectangular prism has a length of 7 cm, a width of 4 cm, and a height of 212cm. The prism is filled with cubes that have edge lengths of 12 cm. How many cubes are needed to fill the rectangular prism? Enter your answer in the box.
Answers
Answer:
first solve the volume of the rectangular prism
V = l x w x h
where l is the length
w is the width
h is the height
V = 7 x 4 x 2.5
v = 70 cu cm
then solve the volume of the box
v = e^3
v = 0.5^3
v = 0.125
number of cubes = 70 / 0.125
number of cubes = 560 cubes
Step-by-step explanation:
Arm Span(x) Height(y)
(58, 60)
(49, 47)
(51, 55)
(19, 25)
(37, 39)
(44, 45)
(47, 49)
(36, 35)
(41, 40)
(46, 50)
(58, 61)
(67, 63)
1. Representation of Data with Plots Using graphing software of your choice, create a scatter plot of your data. Predict the line of best fit, and sketch it on your graph. Copy and paste your scatter plot into a word processing document.
2. The Line of Best Fit Include your scatter plot and the answers to the following questions in your word processing document:
Which variable did you plot on the x-axis, and which variable did you plot on the y-axis? Explain why you assigned the variables in that way.
Write the equation of the line of best fit using the slope-intercept formula y = mx + b. Show all your work, including the points used to determine the slope and how the equation was determined.
What does the slope of the line represent within the context of your graph? What does the y-intercept represent?
Test the residuals of two other points to determine how well the line of best fit models the data. Use the line of best fit to help you to describe the data correlation.
Using the line of best fit that you found in 2, approximate how tall is a person whose arm span is 66 inches?
According to your line of best fit, what is the arm span of a 74-inch-tall person?
Answers
Answer:
Here's what I get.
Step-by-step explanation:
1. Representation of data
I used Excel to create a scatterplot of the data, draw the line of best fit, and print the regression equation.
2. Line of best fit
(a) Variables
I chose arm span as the dependent variable (y-axis) and height as the independent variable (x-axis).
It seems to me that arm span depends on your height rather than the other way around.
(b) Regression equation
The calculation is easy but tedious, so I asked Excel to do it.
For the equation y = ax + b, the formulas are
\(a = \dfrac{\sum y \sum x^{2} - \sum x \sumxy}{n\sum x^{2}- \left (\sum x\right )^{2}}\\\\b = \dfrac{n\sumx y - \sum x \sumxy}{n\sum x^{2}- \left (\sum x\right )^{2}}\)
This gave the regression equation:
y = 1.0595x - 4.1524
(c) Interpretation
The line shows how arm span depends on height.
The slope of the line says that arm span increases about 6 % faster than height.
The y-intercept is -4. If your height is zero, your arm length is -4 in (both are impossible).
(d) Residuals
\(\begin{array}{cccr}&\textbf{Arm Span} & \textbf{Arm Span}&\\\textbf{Height/in} &\textbf{Actual} & \textbf{Predicted}&\textbf{Residual}\\25 & 19 & 22.3 & -3.3\\40 & 41 & 38.2 & 2.8\\55 & 51 & 54.1 & -3.1\\65 & 67 & 62.6 & 4.4\\ \end{array}\)
The residuals appear to be evenly distributed above and below the predicted values.
A graph of all the residuals confirms this observation.
The equation usually predicts arm span to within 4 in.
(e) Predictions
(i) Height of person with 66 in arm span
\(\begin{array}{rcl}y& = & 1.0595x - 4.1524\\66 & = & 1.0595x - 4.1524\\70.1524 & = & 1.0595x\\x & = & \dfrac{70.1524}{1.0595}\\\\& = & \textbf{66 in}\\\end{array}\\\text{A person with an arm span of 66 in should have a height of about $\large \boxed{\textbf{66 in}}$}\)
(ii) Arm span of 74 in tall person
\(\begin{array}{rcl}y& = & 1.0595x - 4.1524\\& = & 1.0595\times74 - 4.1524\\& = & 78.4030 - 4.1524\\& = & \textbf{74 in}\\\end{array}\\\text{ A person who is 74 in tall should have an arm span of $\large \boxed{\textbf{74 in}}$}\)
Please help on a time limt!!
Answers
Answer: we cannot help with test bro only homework and assignments
Step-by-step explanation:
Answer: it's 1,3,5 Or A,C,E
Step-by-step explanation:
Can I Get Some Help Pls
Answers
Answer:
im preety sure D = 2
Step 2-by-step explanation:
Samantha Ran at a speed of 4.5 miles per hour. What is this speed in miles per minute?
Answers
Answer:
4.5*60= 270mpm
Answer:
0.075 miles per minute
Step-by-step explanation:
Which point is in the same quadrant as (2, -4)?
Answers
Answer:
(1, -10)
Step-by-step explanation:
To find out if something is in the same quadrant, you just need to match the signs of x and y.
(2, -4)
X is positive, y is negative.
(1, -10)
X is positive, y is negative.
Therefore, they are in the same quadrant.
Let x = any negative rational number. Choose all statements that are true.
A. x is a positive number.
B. x is the opposite of x.
C. x is equal to x.
D. x is greater than x.
E. x is greater than the distance from 0 to x on the number line.
Answers
Answer:b c
Step-by-step explanation:
Locate 1/4 on the number line ( help please, 25 points.)
Answers
Answer:
It is between 0 and 1
Step-by-step explanation:
1/4 is positive and is greater than zero, but less than one.
Answer: -10
Step-by-step explanation:
NEED HELP ASAP Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2 Which rule represents the dilation applied to triangle J K L to create its image, triangle J′ K′ L′ ?
Answers
Answer:
Step-by-step explanation:
C
please, someone, help me
Answers
Answer:
Babygirl
Step-by-step explanation:
we don't know
PLEASE HELP ME WITH MATH LOL
Answers
Answer:
a
Step-by-step explanation:
it is a straight line coming out of the origin
Coming straight out of the orgin straight line