Answer:
slope=2/3
Step-by-step explanation:
form is y=mx+b where m is the slope.
A bacteria sample can be modeled by the function f(x) - 350(1.20) which gives the number of bacteria in the sample at the end of x days. Which statement is the best interpretation of one of the values in this function? 11) A) The initial number of bacteria is 350. B) The number of bacteria at the end of one day is 350. 9 The initial number of bacteria decreases at a rate of 20% D) The number of bacteria increases at a rate of 120% each day.
Answer: A) The initial number of bacteria is 350.
Step-by-step explanation:
Exponential growth equation: [tex]f(x)=A(1+r)^x[/tex] , where A=Initial value, r= growth rate. (i)
Given: A bacteria sample can be modeled by the function [tex]f(x) = 350(1.20)[/tex]which gives the number of bacteria in the sample at the end of x days.
Here, [tex]f(x)=350(1+0.20)[/tex]
Compare this equation to (i) , we get A = 350 and r= 0.20 = 20% (growth rate)
So, the best interpretation of one of the values in this function are:
A) The initial number of bacteria is 350.
Answer:
A
Step-by-step explanation:
I did the prep
Find X- and y- intercepts of the graph of each equation.
Answer:
1.) -4 and 12
y-intercept: -4
x-intercept: 12
2.) -11 and 11
y-intercept: -11
x-intercept: 11
Step-by-step explanation:
x - 3y = 12
0 - 3y = 12
-3y/-3 = 12/-3
y = -4 (y-intercept)
x - 3y = 12
x -3(0) = 12
x = 12 (x-intercept)
2x - 2y = 22
2(0) - 2y = 22
-2y = 22
-2y/-2 = 22/-2
y = -11 (y-intercept)
2x - 2y = 22
2x - 2(0) = 22
2x = 22
2x/2 = 22/2
x = 11 (x-intercept)
When subtracting with negative numbers, change the problem to an
problem and
Answer:
Subtracting a number is the same as adding the opposite of the number
Step-by-step explanation:
Subtracting a negative number from a negative number – a minus sign followed by a negative sign, turns the two signs into a plus sign. So, instead of subtracting a negative, you are adding a positive. Basically, - (-4) becomes +4, and then you add the numbers. For example, say we have the problem -2 - –4.
What is 3+4
This is such a hard question Ik like
Answer: 3+4 =7 this is the right answer :)
Step-by-step explanation:
Answer:
this was so difficult but the answer is 7
Find an equation for the line below. Thanks !
Answer:
[tex]\huge\boxed{y=\frac{1}{4}x + \frac{13}{4}}[/tex]
Step-by-step explanation:
In order to find the equation to this line, we need to note that we see two points on this graph. Using these two points, we can use them to find the slope of the graph and use one to find the y-intercept.
We know that the slope of a line is defined by [tex]\frac{\Delta y}{\Delta x}[/tex] (change in y / change in x). Therefore, we can use our two points that we know - (-5, 2) and (3, 4) to find the slope.
The change in y is [tex]4 - 2 = 2[/tex], and the change in x is [tex]3 - (-5) = 3+5= 8[/tex]. Therefore, our slope is [tex]\frac{2}{8} = \frac{1}{4}[/tex].
Now that we know our slope, our equation in slope-intercept form looks something like this.
[tex]y = \frac{1}{4}x + b[/tex]
However, we still have b to solve for. We can solve for this by substituting a point we already know into the equation. Let's substitute (3, 4) inside.
[tex]4 = \frac{1}{4} \cdot 3+b[/tex] [tex]4 = \frac{3}{4} + b[/tex] [tex]b = \frac{16}{4}- \frac{3}{4}[/tex] [tex]b = \frac{13}{4}[/tex]So now we know that the y-intercept is [tex]\frac{13}{4}[/tex]. Plugging that into our equation finishes it off, leaving our final equation to be [tex]y = \frac{1}{4}x + \frac{13}{4}[/tex].
Hope this helped!
Answer:
y= 1/4 + 13/4
Step-by-step explanation:
mark brainless please..
;-;
(did this question before)
lol
Lydia found an apartment that she wants to rent. The rent is $715 per month and there is a security deposit of $355. To move in, Latisha must have first month's rent, last month's rent and the security deposit. How much does Lydia need to move in?
Answer:
$1785
Step-by-step explanation:
you have to multiply the monthly rent by 2 since she has to pay the first and last months rent and then add the $355 security deposit
Answer:
$1985
Step-by-step explanation:
715 x 2 = 1430
1430 +355 = $1985
i really need help please someone
Step-by-step explanation:
your welcome
....................
Gina has 48 stickers. of the stickers have pictures of flowers. of the stickers have pictures of plants. The rest of the stickers have pictures of people. How many stickers have pictures of people?
Responses
A. 24 stickers
B. 12 stickers
C. 30 stickers
D. 18 stickers
Answer:
A
Step-by-step explanation:
What is the value of 3/4 divided by 2/1/2
Answer:
hello your answer will be 9/2
HELP ASAP A furniture manufacturer must pay $16.91 to make a certain kind of chair, which it can sell for $55.75. If the manufacturer has starting overhead costs of $18,340, not including production costs, how many chairs must it sell to realize a profit of $24,850, to the nearest chair?
a. 1,112
b. 918
c. 775
d. 640
(10 points and brainliest if the answer is right)
Answer:
A. 1,112
Step-by-step explanation:
The manufacturer needs to sell approximately 1,112 chairs to realize a profit of $24,850.
Option A is the correct answer.
What is an expression?
An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example: so
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
Let's start by finding the profit per chair:
So,
Profit per chair = Selling price - Production cost
= $55.75 - $16.91
= $38.84
Next, we need to determine how many chairs the manufacturer needs to sell to make a profit of $24,850:
Profit = Profit per chair x Number of chairs sold - Overhead costs
$24,850 = $38.84x - $18,340
$43,190 = $38.84x
x = 1,112.49
Rounding to the nearest whole number, the manufacturer needs to sell approximately 1,112 chairs to realize a profit of $24,850.
Therefore,
The manufacturer needs to sell approximately 1,112 chairs to realize a profit of $24,850.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ5
Write an equation of a line that passes through the point (4,3) and is perpendicular to the graph of the equation y=−13x+4.
Answer:
An equation of a line that passes through the point (4,3) and is perpendicular to the graph of the equation will be:
[tex]y=\frac{1}{13}x+\frac{35}{13}[/tex]Step-by-step explanation:
We know that the slope-intercept form of the line equation is
[tex]y=mx+b[/tex]
where
m is the slopeb is the y-interceptGiven the line
y = -13x+4
comparing with the slope-intercept form of the line equation
The slope of the line = m = -13
We know that a line perpendicular to another line contains a slope that is the negative reciprocal of the slope of the other line, such as:
slope = m = -13
Thus, the slope of the the new perpendicular line = – 1/m = -1/-13 = 1/13
Using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where
m is the slope of the line(x₁, y₁) is the pointsubstituting the values of the slope m = 1/13 and the point (4, 3)
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-3=\frac{1}{13}\left(x-4\right)[/tex]
Add 3 to both sides
[tex]y-3+3=\frac{1}{13}\left(x-4\right)+3[/tex]
[tex]y=\frac{1}{13}x-\frac{4}{13}+3[/tex]
[tex]y=\frac{1}{13}x+\frac{35}{13}[/tex]
Therefore, an equation of a line that passes through the point (4,3) and is perpendicular to the graph of the equation will be:
[tex]y=\frac{1}{13}x+\frac{35}{13}[/tex]Help me with this pls
Answer:
x=65
Step-by-step explanation:
90 degree angle
90-25= 65
It is a straight line with angle measures of 90°, x° and 25° opposite to the angle marked 180°.
Hence, their sum is 180°.
➛[tex]90 \degree + x + 25 \degree = 180 \degree[/tex]
➛[tex]115 \degree + x = 180 \degree[/tex]
Then,
➛[tex] x = 180 \degree - 115 \degree[/tex]
➛[tex]x = 65 \degree[/tex]
Hence:-The measure of the angle will be 65° (Ans)
~[tex] \large{ \blue{ \sf{FadedElla}}}[/tex]
find the ratio of a side length in triangle ABC to a side length in DEF then simplify the ratio
Answer:
4. 1/2
5. 9/1
Step-by-step explanation:
4. 2/4 simplifies to 1/2
5. 18/2 simplifies to 9/1
can someone help on a)
please its due soon :(
what is yhe rotational symmetry of a regular pentagon base pyramid?
Answer:
C5, [5]+, (55)
i think this is it but i might be wrong
Step-by-step explanation:
Cora uses a ratio of 18 cherries to 3 peaches when she makes a pie filling. Lena uses an equivalent ratio to Cora. If Lena uses 9 peaches, how many cherries does she use?
what is the slope (2,-9) (-2,9)
Answer:
[tex]\bold{m=-\dfrac92=-4.5}[/tex]
Step-by-step explanation:
[tex]\bold{slope\, (m)=\dfrac{change\ in\ Y}{change\ in\ X}=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]
(2, -9) ⇒ x₁ = 2, y₁ = -9
(-2, 9) ⇒ x₂ = -2, y₂ = 9
So the slope:
[tex]\bold{m=\dfrac{9-(-9)}{-2-2}=\dfrac{18}{-4}=-\dfrac92}[/tex]
Please help its for a grade.
Answer:
See below
Step-by-step explanation:
Taking the readings from the graph
x .... y0 .... 22 .... 64 .... 106 .... 14Rate of change for the given line is:
(6 - 2)/2 = 4/2 = 2y- intercept is 2Equation for the line is:
y = 2x + 2For the point (40, 76) we can verify with the equation:
40*2 + 2 = 82The point (40, 76) is close the line but the line doesn't pass through it.
Answer:
x | y
0 | 2
2 | 6
4 | 10
6 | 14
Equation of the line is
[tex] \frac{y - 2}{x - 0} = \frac{6 - 2}{2 - 0} \\ \frac{y - 2}{x} = \frac{4}{2} = 2 \\ y - 2 = 2x \\ y - 2x = 2\\ \boxed{y=2x+2}[/tex]
When x=40, y will be (2×40)+2 =82
So the point should pass through (40,82) and not (40,76).
A taxi service charges a base fee of $5.00 for each fare. In addition, the service charges a $1.75 per minute fee. Which equation relates the total cost of a fare, , to the length of the ride, in minutes, ?
Answer:
Equation is = 5+1.75m
Step-by-step explanation:
Given that,
A taxi service charge is $5.00 for each fare.
In addition, the service charges a $1.75 per minute fee.
It means, for every minute, $1.75 increases with time and $5.00 is fixed.
ATQ,
Total cost = 5+1.75m
Where m is time in minutes
Hence, the required equation is "5+1.75m".
Calculate the difference (4x2 + x - 5) – (5x2 - 1).
A
x²+x-6
B
9x2 + x-6
с
-x²+x-4
D
9x2 + x - 4
Answer: B ) -x^2 + x-4
Step-by-step explanation:
The average cost per month of a 2-bedroom apartment in Grayson was $625 last year. This year, the average cost is $650. What is the percent increase from last year to this year? *
4%
25%
14%
3.8%
Answer:
4%
Step-by-step explanation:
4% percent of 625 is 25 and the price used to 635 and now its 650 which means there was a $25 increase which means 4% is correct
BRAINLIEST PLZ!!!
The unit rate for 115 miles in 2 hours is ___ miles per hour. (Put your answer as a decimal)
Answer:
57.5 MPH
Step-by-step explanation:
You have to divide to find unit rate.
You will get 57.5 once you divide.
What is the inverse of function f?
9514 1404 393
Answer:
C. f^-1(x) = (∛(x+1))/4
Step-by-step explanation:
The inverse function can be found by solving x = f(y) for y.
[tex]f(y)=x\\\\64y^3-1=x\\\\64y^3=x+1 \qquad\text{add1}\\\\4y=\sqrt[3]{x+1} \qquad\text{cube root}\\\\y=\dfrac{\sqrt[3]{x+1}}{4} \qquad\text{divide by 4}\\\\\boxed{f^{-1}(x)=\dfrac{\sqrt[3]{x+1}}{4}}[/tex]
I NEED HELP PLZ I WILL GIVE THANKS AND BRAINLIST
Answer:
His test IS a solution.
Step-by-step explanation:
Both LHS and RHS are equal so it is a solution.
I think that (His test point is a solution) is the answer
PLEASE HELP!!! PLEASE DONT ANSWER IF U DONT KNOW!
Answer:
x^2 - y^2) - (x^2 -3x +2)
Step-by-step explanation:
Answer:
-y to the second power + 3x-2
Step-by-step explanation:
Please mark brainlliest if you want.
the sum of two number is 45. if one of them is 27 find other in equation with process
Step-by-step explanation:
Hey there!
Given;
The sum of two numbers is 45.
One of them is 27.
Let next number is "x".
So, Add "x" and "27" and show it is equal to 45.
Or, x+27 = 45
Therefore, x+27 = 45 is the required equation.
Now, solving unknown number.
~ Take "27" to right side and subtract it.
x= 45 - 27
X= 18
Therefore, next number is (x) = 18.
Hope it helps...
ANSWER = 18
Step-by-step explanation:
the sum of two no. =45
one no.=27
therefore,
two no.=
45-27=18
HOPE IT'S HELP FOLLOW MEFOR YOUR ALL PROBLEM OF THE QUESTIONI ANSWER ALL YOUR QUESTIONFind the slope:
(3,-5) and (-7,-6)
the slope is 0.1 or one tenth as a fraction.
slope equation:
change in Y divided by change in X
**underlined numbers are x values and bold numbers are y values**
(3,-5) and (-7, -6)
our two Y values looking at the coordinates are -5 and -6, since coordinates are (x,y)
our two X values are 3 and -7
now plug these into the equation:
-5 - (-6)
------------
3 - (-7)
**PAY ATTENTION TO THE SIGNS**
now the numerator is -5+6 which is 1
and the denominator is 3+7 which is 10
that makes 1/10 as a fraction -your slope
simplify it and you have:
slope = 0.1 or 1/10
i hope this helps!!
The band at charles high school had a concert for charity. They raised $15,000. Adult tickets were $5 each and student tickets were $3 each. The members of the band sold a total of 4,000 tickets. How many student tickets did they sell
Answer:
Adults =1500 and student= 2500
Step-by-step explanation:
Step one:
GIven data
let Adults be x and student be y in numbers
so
5x+3y=15000------------1
x+y=4000---------------------2
from 1
x=4000-y, put this in 2, we have
5(4000-y)+3y=15000
20000-5y+3y=15000
-2y=15000-20000
-2y= -5000
2y=5000
divide both sides by 2
y= 2500
put y= 2500 in 2
x+2500= 4000
x= 4000-2500
x=1500
Which is a factor of 3x^3+5x^-27x-45
Step-by-step explanation:
c
Answer:
c.3x+5
A.x+3
D.x-3
Step-by-step explanation:
What’s the value of x in this equation???? Thank u!
Answer:
x = 9
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
50° is an exterior angle of the triangle, thus
38 + 4x - 24 = 50 , that is
14 + 4x = 50 ( subtract 14 from both sides )
4x = 36 ( divide both sides by 4 )
x = 9
Answer:
[tex]\huge\boxed{\sf x = 9}[/tex]
Step-by-step explanation:
The measure of the exterior angle is equal to the sum of non-adjacent interior angles.
So,
50 = 38 + 4x - 24
50 = 4x + 14
Subtract 14 to both sides
50 - 14 = 4x
36 = 4x
Divide 4 to both sides
36 / 4 = x
x = 9
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807