Answer:
y=-1/2x+2
Step-by-step explanation:
First, the slope of perpendicular line have negative reciprocal coefficients. In this case the coefficient is 2, The reciprocal of 2 is 1/2 and the negative of 1/2 is -1/2. So x will have a coefficient of -1/2.
Second, find the equation with a slope of -1/2 that passes through (-2,3). There are a few ways to do this. I like to plug the given x value into the expression -1/2x, so -1/2(-2) which equals positive 1 and for the line to pass through the point (-2,3) you need to add 2. So: y=-1/2x+2
Assume that lines which appear tangent are tangent 15 9 solve for x
Answer: -0.383864035
Step-by-step explanation: Tan(159) = -0.383864035
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Answer:
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Which of the following numbers can be expressed as repeating decimals? 4/7, 2/5, 7/8, 4/9
Answer:
4/7 & 4/9
Step-by-step explanation:
4/7 <-------- repeating decimal/rational4/9 <-------- repeating decimal/rationalNumbers with a repeating pattern of decimals are rational because when you put them into fractional form, both the numerator a and denominator b become non-fractional whole numbers. ------------------------------- 4/9A repeating decimal is a decimal number that goes on forever. We want to know if the decimal number you get when you divide the fraction 4/9 (4 ÷ 9) is repeating or non-repeating.Here are the steps to determine if 4/9 is a repeating decimal number:1) Find the denominator of 4/9 in its lowest form.The greatest common factor (GCF) of 4 and 9 is 1. Convert 4/9 to its simplest form by dividing the numerator and denominator by its GCF:4 ÷ 1/ 9 ÷ 1 = 4/9Thus, the denominator of 4/9 in its lowest form is 9.2) Find the prime factors of the answer in Step 1.The prime factors of 9 are all the prime numbers that you multiply together to get 9. The prime factors of 9 are:3 x 33) Determine if 4/9 is repeatingA fraction is a repeating decimal if the prime factors of the denominator of the fraction in its lowest form do not only contain 2s and/or 5s or do not have any prime factors at all. This is the case here, which means that our answer is as follows:4/9= repeating------------------------------------------ 4/7A repeating decimal is a decimal number that goes on forever. We want to know if the decimal number you get when you divide the fraction 4/7 (4 ÷ 7) is repeating or non-repeating.Here are the steps to determine if 4/7 is a repeating decimal number:1) Find the denominator of 4/7 in its lowest form.The greatest common factor (GCF) of 4 and 7 is 1. Convert 4/7 to its simplest form by dividing the numerator and denominator by its GCF:4÷1/7÷1=4/7Thus, the denominator of 4/7 in its lowest form is 7.2) Find the prime factors of the answer in Step 1.The prime factors of 7 are all the prime numbers that you multiply together to get 7. The prime factors of 7 are:73) Determine if 4/7 is repeatingA fraction is a repeating decimal if the prime factors of the denominator of the fraction in its lowest form do not only contain 2s and/or 5s or do not have any prime factors at all. This is the case here, which means that our answer is as follows:4/7= repeatingTherefore, the fraction 4/7 and 4/9 can be represented as repeating decimals.What is the the decimal equivalent of 1/-4
Answer:
Step-by-step explanation:
1 / -4 = -0.25
(excuse my bad mouse drawing)
1. An unknown number of liters of mixture containing 6% boric acid is to be mixed with 2 liters of
a mixture which is 15% boric acid. The new solution created is to be at a concentration of 12%
boric acid. How much of the 6% solution must be used? Show all work.
Answer:
0.4
Step-by-step explanation
2/0.15+x/0.06=x+2/0.12
30=x/0.12+2/0.12
1.6+2x=x+2
x=0.4
The seats at a local baseball stadium are arranged so that each row has five more seats than the row in front of it. If there are four seats in the first row, how many total seats are in the first 24 rows? (2 points)
1,428
1,476
2,856
2,952
Answer:
B
Step-by-step explanation:
This is a summation problem. The difference is the same all the way up.
First we have to find the last term.
t24 = a + (n - 1)*d
a = 4
n = 24
d = 5
t24 = 4 + (24 - 1)*5
t24 = 4 + 23*5
t24 = 4 + 115
t24 = 119
Now you can calculate the total
Sum = (a + t24)*n/2
Sum = (4 + 119)*24/2
Sum = (4 + 119)*12
Sum = 123 * 12
Sum = 1476
I need help on this question, please
Answer:
a. the percentage of the students who not drive a car is 44%
b. Number of students in 1 car
c. 1 = 3 i think
Step-by-step explanation:
11 / (14 + 11)
11/25
average is 2 i think
you can change the denominator to 100 by multiply 4, dont forget to do the same to the top
44/100
the percentage of the students who not drive a car is 44%
mean is average. to find the mean add all the given then divide by how many
sooo i think since it said "number of students in each car"
1 + 2 + 3 / 3
6 / 3
2 i think?
The solutions to the equations is
The percentage of students who do not travel by car is given by the equation A = 44 %
The mean number of students in each car is 2 students and the missing frequency is 3 cars
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
The total number of students in the school = 25 students
The number of students who travel by car = 14 students
The number of students who do not travel by car = 11 students
So , the percentage of students who do not travel by car = ( number of students who do not travel by car x total number of students in the school ) x 100
Substituting the values in the equation , we get
The percentage of students who do not travel by car A = ( 11/25 ) x 100
On simplifying the equation , we get
The percentage of students who do not travel by car A = 0.44 x 100
The percentage of students who do not travel by car A = 44 %
And , the missing frequency is f = 3 cars
The total number of students in one car = 1 + 2 + 3 = 6 students
So , the mean number of students in each car = 6/3 = 2 students
Hence , the equations are solved
To learn more about equations click :
https://brainly.com/question/19297665
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what is the equation of the line with y intercept (0.8)and slope 3/5
Step-by-step explanation:
y = mx + b
m is slope
b is y-intercept
y = 3/5 x + 4/5
5y = 3x + 4
3x - 5y + 4 = 0
All three equations written above are correct, they are just in different formats :)
[tex]\mathbb{FINAL\;ANSWER:}[/tex]
[tex]\huge\boxed{\sf{y=\displaystyle\frac{3}{5} x+0.8}}[/tex]
[tex]\mathbb{SOLUTION:}[/tex]
Hi! Hope you are having a nice day!
[tex]\mathcal{GIVEN:}[/tex]
Slope of the lineThe line's y-intercept[tex]\mathcal{TO \ FIND:}[/tex]
The equation of the line using the given information[tex]\mathcal{PROCESS:}[/tex]
Should we write the equation of the line in Slope-Intercept Form or in Point-Slope Form?[tex]\mathcal{SLOPE-INTERCEPT\;FORM:}[/tex]
y=mx+bwhere m = slope of the linewhere b = y-intercept of the lineActually, we do have enough information to write the line's equation in Slope-Intercept form OR in Point-Slope Form.
However, let's write the equation in Slope-Intercept Form.
The y-intercept is 0.8, and the slope is [tex]\sf{\displaystyle\frac{3}{5} }[/tex].
Equation:y=mx+b
Plug m:
[tex]\sf{y=\displaystyle\frac{3}{5} x+b}[/tex]
Plug b:
[tex]\sf{y=\displaystyle\frac{3}{5} x+0.8}[/tex]
Hope you could understand everything.
#LearningIsFun
What is the principal solution to the equation?
x^2=121
Pls explain for brainliest and a like
1.step by step
2. correct answer
3. clearly explained
Estimate. About how many groups of 25 are in 95? How do you know?
Which of the following can be found by using a line plot?
Orange
O mode
hogy
median
mean
Answer:
range, mode, median, and mean can be found using a line plot
Step-by-step explanation:
mark me the brainliest
A computer screen has a width of 15 inches and a height of 11 inches. Approximately what is the length of the screen’s diagonal?
Answer:18.6 you could search up the formula to help you solve it
(a+4)^(2)-(a-1)^(2) please solve this rn please i need it
Answer:
10a + 15
Step-by-step explanation:
(a+4)^(2)-(a-1)^(2)
(a+4)^(2)
(a+4)(a+4) = (a^2 + 8a + 16)
(a-1)^(2)
(a-1)(a-1) = (a^2 -2a + 1)
(a^2 + 8a + 16) - (a^2 -2a + 1)
a^2 + 8a + 16 - a^2 +2a - 1
10a + 15
Can someone who is good at math help me to do this?
10 points
Answer:
Yours: mean: 17; median: 17; mode: none
Friends: mean: 16.4; median: 17; mode: 20
You have the higher mean.
Step-by-step explanation:
a.
Your mean:
(18 + 16 + 19 + 15 + 17) / 5
= 17
Your median:
15 , 16, 17, 18, 19
= 17
Your mode:
15 , 16, 17, 18, 19
= No mode (no number comes up repeatly)
Your friend's mean:
(20 + 20 + 13 + 12 + 17) / 5
= 16.4
Your friend's median:
12, 13, 17, 20, 20
= 17
Your friend's mode:
12, 13, 17, 20, 20
= 20
b. Comparing your means, you have the higher mean
If you roll a 6-sided die 6 times, what is the best prediction possible for the number of times you will roll a six?
I need a whole number btw.
Answer: Theoretically, 1 time
I need help on this question so if u actually can answer it correctly and show how you got it that would be helpful thx
[tex] \rm \looparrowright - \frac{1}{4} (8 - 4 + 20x)[/tex]
Subtract the numbers
[tex] \rm \looparrowright - \frac{1}{4} (4+ 20x)[/tex]
Factor out 4 from the expression
[tex] \rm \looparrowright - \frac{1}{ \cancel4} \times \cancel4(1 + 5x)[/tex]
[tex] \rm \looparrowright - (1 + 5x)[/tex]
When there is a - in front of an expression in parentheses, change the sign of each term in the expression to -
[tex] \rm \looparrowright - 1 - 5x[/tex]
Thus, Options A and F are correct!!~Find the measure of the missing angle .
Answer:
c = 99 and b = 81
Please help me ASAP
How many solutions are there to this system of equations?
tyy!
Answer:
looks like 2
Step-by-step explanation:
Points where two lines cross are solutions they share
Here is a system of linear equations
2x+3y=14
4x-3y=10
Which would be more helpful for solving the system: adding the two equations or subtracting one from the other?
Answer:
Adding the two equations
Step-by-step explanation:
2x+3y=14
4x-3y=10
_________
6x-0y=24
6x=24
x=4
see na too simple, u can find y using x=4 in any equation
30 POINTS + BRAINLEST TO FIRST CORRECT EXPLAINED ANSWER!
Please make sure to answer all parts of the question. Answer if the equation is right, and how to solve. Thank you!
Bert is planning to open a savings account that earns 1.6% simple interest yearly. He wants to earn exactly $384 in interest after 3 years. How much money should he deposit?
A.
$80
B.
$8,000
C.
$6,144
D.
$800
[tex]~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill & \$384\\ P=\textit{original amount deposited}\\ r=rate\to 1.6\%\to \frac{1.6}{100}\dotfill &0.016\\ t=years\dotfill &3 \end{cases} \\\\\\ 384 = P(0.016)(3)\implies \cfrac{384}{(0.016)(3)}=P\implies 8000=P[/tex]
What type of figure is shown?
The base of the figure is a ___________
A: Prism
B: Rectangle (wrong)
C: Triangle
Answer:
1. triange 2. trangle prism
Step-by-step explanation:
A car travels at a speed of 65 miles per hour. How far will it travel in 5 hours?
Answer: Distance = 325 miles
Step-by-step explanation:
Distance = speed*time
We can plug in the values given for time and speed:
Distance = 65 miles/h * 5 hours
Distance = 325 miles
Answer:
325 miles
Step-by-step explanation:
To find out how far the car will travel in 5 hours, we first need to know how far it will travel in one hour.
Well, we are given that information.
Since we know that the car travels 65 miles in 1 hour, we just have to multiply 65 by the number of hours it will drive, which is 5 in this case.
5 x 65 = 325
The car will drive 325 miles in 5 hours.
A raffle sold 2,000 tickets. What is the theoretical probability of NOT having the winning ticket? P(NOT winning ticket) =
Answer:
0
Step-by-step explanation:
you dont own any tickets, so how can you have any probability of winning? 2000 other people, or at least 2000 other tickets are owned by other people than you.
1) If 4 men take 18 days to paint a fence. Working at the same pace, how many men would be needed to paint the fence in 12 days?
2) It takes 6 men 14 hours to dig a drain. How many hours would it take 7 men to dig the same drain?
3) A bus takes takes 4 hours to reach its destination, travelling at a speed of 60 miles per hour. How many hours would it take to reach the same destination travelling at 80 miles per hour?
4) If 9 persons take 40 minutes to complete a task. Working at the same pace, how long would it take 6 persons to complete the same task?
5) If 8 men can mow a large piece of lawn in 9 hours, then how long would it take 9 men working at the same rate to mow the same lawn?
6) A car travels 150 miles in 3 hours. How many miles will it travel in 7 hours at this same rate?
7)Lia earns $7.50 per hour, at this rate; how much would she earn for 9 hours of work?
8) Alex can pack 64 oranges in 4 minutes, at this same pace; How many oranges could he pack in 1 minute?
9) A machine manufactures 400 units in 5 minutes. At this rate, How many units would it manufacture in 2 minutes?
10) A train travels 240 km in 4 hours, at this same speed; how much time would it take to travel 540 km?
Answer:
it will take 6men to work in 12days
it takes 6men to work in 13hours it will now take 7men to work 13
it will take 6 hours to travel at 80miles
it will take 6 men to complete the same work at 1 hour
it will take 9 men to mow a large piece of lawn in 8 hour
it will travel 50 miles is 7 hour
If 2x/2y= 16, what is x-y
Answer:
15
Step-by-step explanation:
2x/2y = 16
First, we can cancel out the 2s as there is one on the numerator and another on the denominator.
x/y = 16
To make it fraction form, we know that 16 = 16/1.
x/y = 16/1
We then get x and y.
x = 16
y = 1
x - y = 15
Evaluate the expression
9^4 x 9^-4
(Problem 8 in photo. Thank you!)
Answer:
1
Step-by-step explanation:
using the rules of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex] , [tex]a^{0}[/tex] = 1 , then
[tex]9^{4}[/tex] × [tex]9^{-4}[/tex]
= [tex]9^{(4+(-4))}[/tex]
= [tex]9^{(4-4)}[/tex]
= [tex]9^{0}[/tex]
= 1
Anuar has a collection of 80 toy vehicles. 3/5 of his toy vehicles are cars. The rest are motorcycles and buses. The number of motorcycles is 3 times the number of buses. How many toy motorcycles does Anuar have?
Answer:
He has 24 motorcycles
Step-by-step explanation:
I hope I could help!
Answer:
36 motorcycles
Step-by-step explanation:
calculate [tex]\frac{3}{5}[/tex] of 80
= [tex]\frac{3}{5}[/tex] × 80 ( cancel 5 and 80 by 5 )
= 3 × 16 = 48
there are 48 motorcycles and buses
let x be the number of buses then 3x is the number of motorcycles , then
x + 3x = 48
4x = 48 ( divide both sides by 4 )
x = 12
number of motorcycles = 3x = 3 × 12 = 36
please help me quick I need it, i don't understand and it's due in 5 mins quick
Answer:
#3 and #4 and #6
Step-by-step explanation:
a function is when there is only one x for one y, so if two points have the same x value but different y value, they cannot be a function
Answer:
The third one, fourth one, and sixth one.
Step-by-step explanation:
If there are repeating x values in the domain, the function would not be valid, for vertical lines would form. Every input (domain) must only have one output (range), but every output can have multiple different inputs.
Last week, Kip went to the fair. It costs $4.59 to enter the fair and $1.25 per ticket. In the equation below, x represents the number of tickets Kip bought, and y represents the total amount Kip spent. y = $1.25x + $4.59 If Kip spent $23.34 at the fair, how many tickets did he buy? A. 12 B. 15 C. 22 D. 19
Answer:
B.) 15
Step-by-step explanation:
Fist you want to plug in 23.34 as your Y. Next you want to subtract 4.59 from 23.34. Finally, to get the variable alone, divide the answer you got from subtracting by 1.25.