Answer:
y=7-x/2
y=-13+x
Step-by-step explanation:
Answer:
x=40/3 2/3
Step-by-step explanation:
Use elimination method for this. To do it, Multiply the x-y=13 by 2. It turns into 2x-2y=26. We have this
x+2y=14
2x-2y=26
Add because the signs are different for y each equation.
So 3x=40
x=40/3
14-40/3=2/3
y=2/3
x=40/3
i need help on these problems THANK YOUUU
Answer:
1 is (2.-2) but i cant see the rest
Step-by-step explanation:
Answer:
2. m = 1
3. y - (-1) = 5 (x - 4)
4. y = 5x - 21
Step-by-step explanation:
Work for #2
m (slope) = [tex]\frac{y2 - y1}{x2 - x1} \fracyx}[/tex]
m = [tex]\frac{-1 - 2}{-2 -1}[/tex]
m = [tex]\frac{-3}{-3}[/tex]
m = 1
Work for #3
y = -1/5x + 3 and through (4, -1)
The slope of a perperndicular line is the negative reciprocal. So, it is 5.
Plug this number into point-slope form. Use the points you were given (4,-1) in the equation as well.
y - y1 = m (x - x1)
y - (-1) = 5 (x - 4)
y + 1 = 5x - 20 (Only if you are supposed to simplify it)
Work for #4
Finish solving the equation
y - (-1) = 5 (x - 4)
y + 1 = 5x - 20
y = 5x - 20 - 1
y = 5x - 21
Find the derivative:
f(x)=tan[tex](x^{2} +5)[/tex]
Answer:
[tex] 2x \sec^2 (x^2 + 5) [/tex]
Step-by-step explanation:
[tex] f(x) = \tan (x^2 + 5) [/tex]
[tex] \dfrac{d}{dx} \tan u = \sec^2 u \dfrac{d}{dx} u [/tex]
[tex] \dfrac{d}{dx} \tan (x^2 + 5) = \sec^2 (x^2 + 5) \dfrac{d}{dx} (x^2 + 5) [/tex]
[tex] \dfrac{d}{dx} \tan (x^2 + 5) = [\sec^2 (x^2 + 5)]2x [/tex]
[tex] \dfrac{d}{dx} \tan (x^2 + 5) = 2x \sec^2 (x^2 + 5) [/tex]
Multiply (x − 4)(x2 − 3x + 5).
Answer:
x3−7x2+17x−20
Step-by-step explanation
BTW the 3 and the 2 are like the tiny numbers at the top cuz i don't know how to do that on a computer
12x + 20 = 6(x + 4)
Algebra 2
Step-by-step explanation:
I think this is answer. Idid not like to read maths book
The hypotenuse and one leg of a right triangle measure 26 and 10, respectively. Find the measure of the third side. Which theorem is used to find the answer?
12 pens for $11.40 What is the Unit Rate
Answer:
0.27 is the unit rate
2.
NEED HELP ASAP‼️‼️‼️‼️‼️ What is the slope of the line that passes through the points (-6, 1) and (3, 7)?
Answer:
c. 2/3
Step-by-step explanation:
To find the slope, you subtract y^1 from y^2 and divide it by x^2 - x^1
Our y^2 is 7 and our y^1 is 1.
7-1 = 6
Our x^2 is 3 and our x^1 is -6.
3 - (-6) = 3+ 6 = 9
so our slope is 6/9, reduced is 2/3
I hope this helped, please mark Brainliest, thank you!!
Solve for X.Just type the number only, the answer is a positive whole number
Answer:
7
Step-by-step explanation:
If line l is parallel to line m, therefore:
[tex] 16x + 22 = 134 [/tex] (alternate exterior angles are congruent)
Subtract 22 from each side
[tex] 16x + 22 - 22 = 134 - 22 [/tex]
[tex] 16x = 112 [/tex]
Divide both sides by 16
[tex] \frac{16x}{16} = \frac{112}{16} [/tex]
[tex] x = 7 [/tex]
A store originally purchased a refrigerator at a cost of $650.20 and marked it up 50%. After a few weeks, however, the store discounted the refrigerator 70% in order to make room for new merchandise. What was the discounted price?
Answer:
Step-by-step explanation:
Step one:
the original price of refrigerator = $650.20
the markup/raise is 50%
the new price after the raise is
= 50/100*650.20
=0.5* 650.20
=325.1
The raise is by $325.1
The new price is $325.1+ $650.20=$975.3
Step two:
there was a discount of 70%
so =(70/100)*975.3
=0.7*975.3
=682.71
The discounted price is $682.71
The new price is 975.3-682.71
=$292.59
Mark is a student, and he can work for at most 10 hours a week. He needs to earn at least
$44 to cover his weekly expenses. His dog-walking job pays $5 per hour and his job as a car
wash attendant pays $4 per hour. Write a system of inequalities to model the situation.
Answer:
[tex]5d+4w\geq 44\\d+w\leq 10[/tex]
Step-by-step explanation:
Let f be the number of hours worked as a dog walker, and w be the number of hours washing cars.
Jane completes 5 math problems in 12 minutes. How many can she complete in one minute?
Answer:
2.4
Step-by-step explanation:
all you have to do is divide 12 by 5
What should be the first step to solve the equation? 2x + 9(x – 1) = 8(2x + 2) – 5 Combine like terms on each side of the equation. Use the distributive property on each side of the equation. Use the subtraction property of equality to subtract 5 from each side of the equation. Use the addition property of equality to add 2x to each side of the equation.
Answer:
Im pretty sure that it is Parenthesis first. You use the distributive property first
Answer:
B
Step-by-step explanation:
A truck driver travels from a distributor to a retailer every week. The driver records the
distance that he is from the retailer at different times during his trip. After several weeks
of collecting data, the driver creates a scatter plot of the data.
The best-fit line is Y=73.6 - 67.8x
where x is the number of hours spent driving and y is the distance, in miles, from the
retailer.
Complete question is;
A truck driver travels from a distributor to a retailer every week. The driver records the distance that he is from the retailer at different times during his trip. After several weeks of collecting data, the driver creates a scatter plot of the data. The best–fit line is y = 73.6 – 67.8x, where x is the number of hours spent driving and y is the distance, in miles, from the retailer.
Which of the following statements are true? Select all that apply.
The distance from the retailer increases with time.
The distance from the retailer decreases with time.
The distributor is 67.8 miles away from the retailer.
The distributor is 73.6 miles away from the retailer.
The truck is traveling at a rate of 67.8 miles per hour.
Answer:
B: The distance from the retailer decreases with time.
Step-by-step explanation:
Formula for best fit line is;
y = mx + b
Where;
m is slope
b is y-intercept
We are told that the best–fit line is y = 73.6 – 67.8x
This can be written as;
y = -67.8x + 73.6
This means the slope is negative and when x = 0, y = 73.6 which is the y-intercept.
We are told that x is the number of hours spent driving and y is the distance, in miles, from the retailer.
Since we have a negative slope, it means that y is decreasing with increasing values of x.
Thus, we can say that the distance from the retailer decreases with time.
Is 4/8 equal to 6/12?
Answer:
yes becauseeee:
4/8 if we divide both by 4 be get 1/2
and with 6/12 if we divide both by 6 we also get a half
Use common logarithms or natural logarithms and a calculator to evaluate to four decimals places.
Answer:
1.458 (approximately)
Step-by-step explanation:
log16(57)
=log(57)/log(16) (using common logarithm)
=1.458 (approximately)
Is the calculation for the question: Write an expression for the calculation. Double the number 6 and then subtract 36 divided by 12. Is the answer 6 x 2 - 36 ÷ 12?
Answer:
Yes
Step-by-step explanation:
Yes the answer is 6 x 2 - 36 ÷ 12 and it is correct. Although you could change this arithmetic expression by adding parenthesis to make it easier to read and know which operations come first, like so...
(6 x 2) - (36 ÷ 12)
This would make it easier to see that the 6x2 must be done first and then the 36/12 before doing the subtraction.
Isaiah is mowing lawns for a summer job for every mountain Charlie charges an initial fee of $10 plus $6 dollars for each additional hour
1. write an equation in slope intercept form
2. how much money does he make after working one job for four hours
Answer:
y = 6x + 10
Isaiah makes $34.00 after working for 4 hours.
Step-by-step explanation:
Slope intercept form is y=mx+b
In this situation the equation would look like so, x = amount of hours:
y = 6x + 10
To solve for how much Isaiah earns after 4 hours plug in 4 instead of x.
y = 6(4) + 10
y = 24 + 10
y = 34
Isaiah makes $34.00 after working for 4 hours.
Hope that helps and have a great day!
(−12)⋅(−12)⋅(−12)
lkndslnfkdsbdf
Answer:
-1728
Step-by-step explanation:
First, you multiply -12 and -12 which is 144
After that multiply 144 by -12 which is -1728
Answer: -1728
Hope this helps!
Answer:
-1728
Step-by-step explanation:
If TRAP is an isosceles trapezoid, what is the value of x?
(5x +9)"
R
A. 9
B. 25
C. 18
D. 23
E. 19
F. Cannot be determined
Answer: 19, I had to get the question wrong :/
The value of x is 19
How to determine the value of x?From the question we understand that TRAP is an isosceles trapezoid
This means that the adjacent angles add up to 180 degrees.
So, we have:
5x + 9 + 4x = 180
Evaluate the like terms
9x = 171
Divide both sides by 9
x = 19
Hence, the value of x is 19
Read more about isosceles triangles at:
https://brainly.com/question/24371813
Jonas has been saving for a video game . last year it costs $28 this year it costs $36 find the percent of change in the cost . *
Answer:
28%
ok so 36/28 = 1.28
so 36 is 128% of 28
minus the 100 and you get 28 percent so there is a 28 percent increase
Slope of (-8,2) and (-8,-6)
Answer:
-8
Step-by-step explanation:
help me plzzzz and fast
Answer:
A D
Step-by-step explanation:
Since it is a one time fee of 55$, that will be our y intercept.
That allows A and D and F possible answers.
It says 10$ per puzzle and they spent 1245$
So A and D are answers.
If f(x) = -3, then x = _____ .
Answer:
x = -5
Step-by-step explanation:
f(x) is the same thing as y. so when y=-3, find that point and the x is -5
The answer to the given problem can be stated as, "If f(x) = -3, then x = -5.
What is a function?A function y = f(x) is defined as a one to one relation between sets X and Y. The set X is called the domain while Y is called the range of f(x).In order to find the different values of f(x) for different x on a graph, draw perpendicular lines to both the axis.
The graph given in the problem shows different points lying on it.
In order to find the value of x at f(x) = -3, draw a perpendicular line from the graph at which the value of f(x) is -3.
The x coordinate obtained is given as x = -5.
Hence, the required value of x at f(x) = -3 is -5.
To know more about function click on,
https://brainly.com/question/5975436
#SPJ2
PLEASE HELP ME! THANK YOU!
9514 1404 393
Answer:
-6
Step-by-step explanation:
The average rate of change on the interval [1, 3] is ...
m = (g(3) -g(1))/(3 -1) = (-20 -(-8))/2 = -6
The average rate of change is -6 on the interval from 1 to 3.
URGENT 8TH GRADE Solve for y.
Answer:
23 is the right answer of this question
3
Select the correct answer.
Which set of coordinates satisfies the system of equations y = x − 3 and y = -2x + 1?
A. A
B. B
C. C
D. D
This is my Plato post test on edmentum btw so don't answer if u don't know please
In a three-digit number, the tens digit is the same as the hundreds digit. The ones digit of this number is equal to 1/3 of the sum of the other two digits. Find the number if the sum of all its digits is equal to 24.
Answer:
The three digit number is;
996
Step-by-step explanation:
The three digit can be written xyz
ones digit is equal to 1/3 the sum of the two other digits
z = 1/3(x + y)
x + y + z = 24
Tens digit is same as hundreds digit
That means x = y
z = 1/3 (x + x) = 2x/3
So;
2x/3 + x + x = 24
Multiply through by 3
2x + 3(2x) = 72
8x = 72
x = 72/8
x = 9
x = y = 9
z = 1/3(18)
z = 6
Answer:
996
Step-by-step explanation:
Abby counts 12 large boxes and 18 small boxes of pencils in the supply cabinet. Each large box contains 144 pencils . Each small box contains 24 boxes. Estimate the total number of of pencils. Explain why it might be better to have an underestimate rather than an overestimate.
Answer:
2,160 pencils
Step-by-step explanation:
Large boxes = 12
Small boxes = 18
Each large box contains 144 pencils . Each small box contains 24 pencils
Total pencil in large boxes = Total large boxes × number of pencils per box
= 12 × 144
= 1,728 pencils
Total pencil in small boxes = Total small boxes × number of pencils per box
= 18 × 24
= 432 pencils
Estimate the total number of of pencils
Total number of pencils = total pencils in large boxes + total pencil in small boxes
= 1,728 pencils + 432 pencils
= 2,160 pencils
It is better to have an underestimate than an overestimate so that you won't disappoint your buyers when they request for a quantity of supply. If it is underestimated; you can meet demand, if it is overestimated; you can't meet demand
what is g(3)=
?????
Answer:
g(3) = 4
Step-by-step explanation:
The question means what is the value of y when x = 3
Locate x = 3 on the x- axis. Go vertically up until the dot is met and read off the corresponding value on the y- axis, that is y = 4
Thus when x = 3 then y = 4, or
g(3) = 4
The value of g(3) from the graph given is 4
The given diagram is a graph in the xy-plane with different coordinate points.
g(x) is the output value of the function for an input value of x.Th order to get g(3), this means that we need to get the corresponding y-value for the value of x.The point that has an x-coordinate of 3 is the point o the coordinate (3, 4). Hence the required value of y when x = 3 is 4.Hence we can conclude that the value of g(3) is 4
Learn more here: https://brainly.com/question/15646787
Find the 54th term of the arithmetic sequence —2,-8,-14, ...
Answer:
-320
Step-by-step explanation:
You would first create an explicit formula for the provided sequence.
The basic explicit formula for arithmetic sequences is , [tex]a_{n} = d(n-1) + a_{1}[/tex]where an is the number of the term, d is the number you are adding or subtracting by, n the location of the term, and a1 is the first number.
We would then substitute the values given.
We are trying to solve the value of the 54th term. This makes n = 54. The first number of the sequence is -2, so a1 is -2. Finally, d is -6 because we are subtracting 6 to each number in the sequence.
Therefore, our resulting equation would be[tex]a_{n} =-6(54-1)-2[/tex] , which equals -320.
Answer:
-320.
Step-by-step explanation:
n54 = a1 + d(54 - 1)
Here a1 = -2 and d = -8 - (-2) = -6.
So 54th term = -2 + -6*53
= -320.
