The population of the bacteria after 7 hours is 230 bacteria.
An exponential function is given by:
y = abˣ
where y, x are variables, a is the initial value of y and b is the multiplier.
Let y represent the population of bacteria after x hours.
Given that he starts his experiment with 200 bacteria, hence
a = 200
The bacteria grow at a rate of 2% per hour, hence:
b = 100% + 2% = 1.02
The exponential equation becomes:
y = 200(1.02)ˣ
After 7 hours:
y = 200(1.02)⁷ = 230
The population of the bacteria after 7 hours is 230 bacteria.
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A water tower, in the shape of a right circular cylinder, has a height that is 2 yards less than four times the radius. The volume is 224π cubic yards. What are the dimensions of the water tower
Show ur work and check it
Answer:
k=2
Step-by-step explanation:
6(7k-10)=24
6(7k-10)/6=24/6
7k-10=4
7k-10+10=4+10
7k=14
7k/7=14/7
k=2
Check:
6(7k-10)=24
6(7(2)-10)=24
6(14-10)=24
6(4)=24
24=24
Solution works
Answer:
k=2
Step-by-step explanation:
Sorry if it looks bad I did it in the car xd. You would multiple 6 with 7 and you would get 42 then you would multiply 6 with -10 and you would get -60 then you'd bring down the = 24 and it would look like 42k-60=24 then add 60 to 24 and you'd get 84 then you'd divide 84 by 42 and get 2 so then you would get k=2
2a+c=162.97
how do you use the elimination method for this
When 'a' is 10, 'c' is approximately 142.97. You can repeat this process for different values of 'a' to find corresponding values of 'c'. Keep in mind that there are infinitely many solutions to this equation
To use the elimination method to solve the equation 2a + c = 162.97, we need another equation with the same variables. However, as there is only one equation given, we cannot apply the elimination method directly.
The elimination method typically involves adding or subtracting equations to eliminate one of the variables, resulting in a new equation with only one variable. Since we have only one equation, we don't have the opportunity to eliminate variables using another equation.
In this case, we can solve the given equation directly by isolating one variable in terms of the other. Let's solve for 'c':
2a + c = 162.97
Rearrange the equation to isolate 'c':
c = 162.97 - 2a
Now, we have an expression for 'c' in terms of 'a'. This equation represents a line in the 'a-c' coordinate plane. We can choose any value for 'a', substitute it into the equation, and calculate the corresponding 'c' value.
For example, let's say we choose 'a' = 10:
c = 162.97 - 2(10)
c = 162.97 - 20
c = 142.97
So, when 'a' is 10, 'c' is approximately 142.97.
You can repeat this process for different values of 'a' to find corresponding values of 'c'. Keep in mind that there are infinitely many solutions to this equation since we have one equation and two variables.
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The coordinates of the point P are (−6,−2) and the coordinates of point Q are (−6,9). What is the distance, in units, between the point P and point Q?
Answer____________Units.
Answer:
The distance in units would be -8, -3.
Step-by-step explanation:
Find the intercepts of the function y = 3x + 9
Step-by-step explanation:
To solve for the x-intercept, set y=0 then solve for x.
y=−3x−9. 0=−3x−9. 3x=−9.
x=−3 when y=0.
To solve for the y-intercept, set x=0 then solve for y.
y=−3x−9. y=−3(0)−9. y=−9 when x=0.
Hi there!
Y-intercept:
Set the x value to 0:
y = 3(0) + 9
y = 9 --> (0, 9)
X-intercept:
Set the y value to 0:
0 = 3x + 9
Solve for x:
-9 = 3x
x = -3 --> (-3, 0)
Explain how you have caring degrees of control over the three types of income, and how much control you have ove each.
There are 3 types of income.
1) Earned income
2) Portfolio income
3) Passive income
What is income?Income can be defined as the consumption and saving opportunity gained by an entity within a specified timeframe, which is generally expressed in monetary terms. Income is difficult to define conceptually and the definition may be different across fields.
here, we have,
Earned income meaning is the type of income earned after exerting time and effort in you part. in which , Salary is an earned income. If you stop working, you'll stop having an earned income. The more time spent working, the more income you generate (overtime pay).
Portfolio income can b e stated as better identified as capital gains. This is earned when you sell an asset at a higher price than when you bought it. The difference from the selling price and its cost is the portfolio income. Your portfolio may include stocks, real estate properties, and other assets (antiques, cars).
Passive income is income generated without exerting effort from you. This income is generated from you bought or existing assets. Rental income is an example of this. You will always receive rent from you own real estate property.
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please help with this
Answer:
Width = 3x^2 + 5
Step-by-step explanation:
Area = Length*Width
(6x^2+10)=2*Width Divide both sides by 2
3x^2+5 = Width
Answer:
3x^2 +5
Step-by-step explanation:
Take the pink area 6x^2 and divide by 2
6x^2/2 = 3x^2
Take the blue area and divide by 2
10/2 = 5
Add them together to find the width
The width is 3x^2 +5
which property of exponents must you apply to the express p 1/2 to derive p as the result
The expression becomes: p^(1/2) = p^(1/2 * 1) = p^(1/2) Now we can simplify p^(1/2) as p^1/2 which equals the square root of p.
The property of exponents that must be applied to the expression p^(1/2) to derive p as the result is the Power of a Power Property.
The Power of a Power Property states that when a power is raised to another power, the exponents are multiplied.
For instance, consider the expression p^(1/2). We can apply the Power of a Power Property to this expression as follows: p^(1/2) = (p^(1/2))^1 By applying the Power of a Power Property, the exponent (1/2) is multiplied by the exponent 1, giving a result of 1/2.
Therefore, the expression becomes: p^(1/2) = p^(1/2 * 1) = p^(1/2)Now we can simplify p^(1/2) as p^1/2 which equals the square root of p.
So we have derived p as the result using the Power of a Power Property.
In summary, we must apply the Power of a Power Property to the expression p^(1/2) to derive p as the result.
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A total of 50 randomized samples were assigned into 5 different treatment groups in a pharmaceutical science experiment. Each group includes 10 persons (subjects). In order to test if any difference is discernible among these 5 treatments, one-way ANOVA was conducted for the study. Here are data we calculated: Sum of square between group = 232. Sum of square within group = 400.Subject Treatment 1 Treatment 2 Treatment 3 Treatment 4 Treatment 51 2
---
10ANOVA Summary Table
Source Sum of Square Degree of freedom Mean Square F
Between 232
Within 400
Totala. State null hypothesis and alternative hypothesis. b. Calculate the degree of freedom between group, and the degree of freedom within group. c. Mean squares between groups. d. Mean squares within groups.e. F ratiof. If critical value of F is 2.61, should we reject or accept the null hypothesis?g. State your conclusion for this research.
The null hypothesis is that there is no discernible difference among the 5 treatments. The alternative hypothesis is that there is a discernible difference among the 5 treatments
How to calculate the valuesDegree of freedom between groups is nothing but the number of treatments-1 i.e. 5-1=4 and degree of freedom within groups is nothing but total number of subjects- number of treatments i.e. 5*10-5=50-5=45
Mean squares between groups is calculated as follows:
Mean squares between groups= Sum of squares between groups/degrees of freedom between groups= 232/4=58
Mean squares within groups is calculated as follows:
Mean squares within groups= Sum of squares within groups/degrees of freedom within groups= 400/45= 8.89 rounded off to two decimal places
F ratio is calculated as follows:
F= Mean squares between groups/Mean squares within groups
= 58/8.89
= 6.524184477
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The ratio 5 to 6 represents the number of salty snacks to sweet snacks people buy in a day at a store. a. If the store sold 36 sweet snacks, how many salty snacks did they sell? Prove your answer b. If the store sold 50 salty snacks, how many sweet snacks did they sell? Prove your answe
Answer:
give me tha answer please
Student Council has 1,064 flowers. They want to divide the flowers evenly among 28 centerpieces. How many flowers will be in each centerpiece?
To find out how many flowers will be in each centerpiece, we can divide the total number of flowers by the number of centerpieces:
Total number of flowers: 1,064
Number of centerpieces: 28
Number of flowers in each centerpiece = Total number of flowers / Number of centerpieces
Number of flowers in each centerpiece = 1,064 / 28 = 38
Therefore, there will be 38 flowers in each centerpiece.
\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)
♥️ \(\large{\textcolor{red}{\underline{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
Answer: 38
Step-by-step explanation:
The question is asking you to divided.
1064 divided by 28 = 38
So there will be 38 flowers in each centerpiece
Given AB congruent to EB and BD congruent to BC why is angle ABC congruent to EBD
Answer:
SAS
Step-by-step explanation:
Side angle side Test
2 sides are given equal and angle between these two side is equal in both triangle
hence by SAS test
Triangle ABC and EBD are congruent
Amanda created a table to help her represent the sample space of spinning a spinner and flipping a coin.
What is the probability that the result of the spin is blue and the coin lands heads up?
Group of answer choices
1/8
4/8
2/8
3/8
Razonamiento matemático
Maria tiene $900 pesos y Juan tiene el doble de la tercera parte de María.
Si la suma del dinero de Pedro y Juan es de $1000 pesos ¿cuánto dinero tiene Pedro?
Resolviendo un par de ecuaciones lineales veremos que pedro tiene 400 pesos.
¿Cuánto dinero tiene Pedro?Sabemos que:
María tiene 900 pesos.
Juan tiene el doble de la tercera parte de María, entonces:
J = (2/3)*$900 = $600
Juan tiene 600 pesos.
Finalmente, sabemos que la suma del dinero de Pedro y Juan es de $1,000 pesos, entonces tenemos que resolver la ecuación lineal:
P + J = $1,000
P + $600 = $1,000
P = $1,000 - $600 = $400
Pedro tiene 400 pesos.
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Write the equation in slope intercept form
f(x)=x^4-5x^2-6x-10 is divided by x-3
Answer:
Step-by-step explanation:
STEP
1
:
10
Simplify ——
x
Equation at the end of step
1
:
10
((((x4)-(5•(x2)))-6x)-——)-3
x
STEP
2
:
Equation at the end of step
2
:
10
((((x4) - 5x2) - 6x) - ——) - 3
x
STEP
3
:
Rewriting the whole as an Equivalent Fraction
3.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using x as the denominator :
x4 - 5x2 - 6x (x4 - 5x2 - 6x) • x
x4 - 5x2 - 6x = ————————————— = ———————————————————
1 x
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
STEP
4
:
Pulling out like terms
4.1 Pull out like factors :
x4 - 5x2 - 6x = x • (x3 - 5x - 6)
Polynomial Roots Calculator :
4.2 Find roots (zeroes) of : F(x) = x3 - 5x - 6
Polynomial Roots Calculator is a set of methods aimed at finding values of x for which F(x)=0
Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers x which can be expressed as the quotient of two integers
The Rational Root Theorem states that if a polynomial zeroes for a rational number P/Q then P is a factor of the Trailing Constant and Q is a factor of the Leading Coefficient
In this case, the Leading Coefficient is 1 and the Trailing Constant is -6.
The factor(s) are:
of the Leading Coefficient : 1
of the Trailing Constant : 1 ,2 ,3 ,6
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 -2.00
-2 1 -2.00 -4.00
-3 1 -3.00 -18.00
-6 1 -6.00 -192.00
1 1 1.00 -10.00
2 1 2.00 -8.00
3 1 3.00 6.00
6 1 6.00 180.00
Polynomial Roots Calculator found no rational roots
Adding fractions that have a common denominator :
4.3 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
x • (x3-5x-6) • x - (10) x5 - 5x3 - 6x2 - 10
———————————————————————— = ———————————————————
x x
Equation at the end of step
4
:
(x5 - 5x3 - 6x2 - 10)
————————————————————— - 3
x
STEP
5
:
Rewriting the whole as an Equivalent Fraction
5.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using x as the denominator :
3 3 • x
3 = — = —————
1 x
Checking for a perfect cube :
5.2 x5 - 5x3 - 6x2 - 10 is not a perfect cube
Trying to factor by pulling out :
5.3 Factoring: x5 - 5x3 - 6x2 - 10
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: -6x2 - 10
Group 2: x5 - 5x3
Pull out from each group separately :
Group 1: (3x2 + 5) • (-2)
Group 2: (x2 - 5) • (x3)
Bad news !! Factoring by pulling out fails :
The groups have no common factor and can not be added up to form a multiplication.
Polynomial Roots Calculator :
5.4 Find roots (zeroes) of : F(x) = x5 - 5x3 - 6x2 - 10
See theory in step 4.2
In this case, the Leading Coefficient is 1 and the Trailing Constant is -10.
The factor(s) are:
of the Leading Coefficient : 1
of the Trailing Constant : 1 ,2 ,5 ,10
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 -12.00
-2 1 -2.00 -26.00
-5 1 -5.00 -2660.00
-10 1 -10.00 -95610.00
1 1 1.00 -20.00
2 1 2.00 -42.00
5 1 5.00 2340.00
10 1 10.00 94390.00
Polynomial Roots Calculator found no rational roots
Adding fractions that have a common denominator :
5.5 Adding up the two equivalent fractions
(x5-5x3-6x2-10) - (3 • x) x5 - 5x3 - 6x2 - 3x - 10
————————————————————————— = ————————————————————————
x x
Polynomial Roots Calculator :
5.6 Find roots (zeroes) of : F(x) = x5 - 5x3 - 6x2 - 3x - 10
See theory in step 4.2
In this case, the Leading Coefficient is 1 and the Trailing Constant is -10.
The factor(s) are:
of the Leading Coefficient : 1
of the Trailing Constant : 1 ,2 ,5 ,10
Let us test ....
P Q P/Q F(P/Q) Divisor
-1 1 -1.00 -9.00
-2 1 -2.00 -20.00
-5 1 -5.00 -2645.00
-10 1 -10.00 -95580.00
1 1 1.00 -23.00
2 1 2.00 -48.00
5 1 5.00 2325.00
10 1 10.00 94360.00
Polynomial Roots Calculator found no rational roots
Final result :
x5 - 5x3 - 6x2 - 3x - 10
————————————————————————
x
He i need help with this questions I wanna say it’s d
Answer:
It's A
Step-by-step explanation:
4^2 = 16 times 1/3 equal 16/3
Given (x – 7)2 = 36, select the values of x. x = 13 x = 1 x = –29 x = 42
Answer:
x=25
Step-by-step explanation:
2x-14=36
2x=50
x=25
I run 3 miles in 20 minutes. What was my average speed in miles per hour?
Find the area of the following figure. Round to the nearest hundred if necessary.
14 m
9.5 m
17 m
The area of the given figure is 133 m²
Given is quadrilateral with sides 17m and 9.5m with height of 14m we need to find its area,
The given quadrilateral is a parallelogram, we know that area of the parallelogram is = base x height
Therefore,
The area of the given figure = 9.5 x 14 = 133
Hence, the area of the given figure is 133 m²
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How can the complete transformation be described to a person who cannot see the transformations to the right?
Select the correct choice below and fill in the answer box(es) to complete your choice.
OA. The complete transformation is T
B. The complete transformation is R, where k is the line with equation
Video Textbook Get more help.
Review Progress
Question 2 of 14
24
AM
B
d"
Clear all
2
Back
C
Q
OO
Next
Q
Check answer
Answer:
T〈-7,0〉
Step-by-step explanation:
You want a description of the transformation of triangle ABC to triangle A"B"C".
Transformation∆A"B"C" has the same orientation as ∆ABC, so no reflection is involved (eliminates choice B).
Point A" is 7 units to the left of point A, so the translation is 7 units left (and no units up or down).
The transformation is ...
\(\boxed{T_{\langle-7,0\rangle}}\)
To be competitive for admission to four-year universities (UCF, UF, FSU, FAU, FIU, UCF, USF, etc.) what courses should you try to have each year of high school no matter the intended college major or current status of high school graduation requirements?
Answer:
Ask your guidance counselor or a college admissions counselor
Step-by-step explanation:
There are many cylinders for which the height and radius are the same value. Let represent the height and radius of a cylinder and represent the volume of the cylinder.
Write an equation that expresses the relationship between the volume, height, and radius of this cylinder using and .
If the value of is halved, what must happen to the value of the volume ?
CAN SOMEONE HELP WITH THIS QUESTION?✨
The coordinates of point B are (4, 0)
How to determine the coordinates of point B?From the question, we have the following parameters that can be used in our computation:
A = (6, 10)
Midpoint = (5, 5)
The midpoint of a line from its endpoints is calculated using the following equation
Midpoint = (x₂ + x₁)/2 + (y₂ + y₁)/2
Substitute the known values in the above equation, so, we have the following representation
(5, 5) = (6 + x₁)/2 + (10 + y₁)/2
Multiply by 2
(10, 10) = (6 + x₁) + (10 + y₁)
By comparison, we have
x + 6 = 10
y + 10 = 10
Evaluate
x = 4
y - 0
Hence, the point is (4, 0)
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please help this due today at 6:00 Today
I need an answer as soon as possible
Answer:
1.) 3a
([i couldnt figure out the second one im sorry :(
Step-by-step explanation:
Simplify
\( \frac{a^{2} }{a}\)
\(1.1 \: a^{2} divided \: by \: a^{1} =a^{2 - 1} = a^{1} = a\)
\(3 \times a \: = 3a\)
Note: If p(a) = 0 then (x - a) is a factor of p(x)
given that f(-1), f(-2) are zeros of f(x) find the missing values of these coefficients p, q
f(x) = x³ + px² - qx - 4
After finding the values of the coefficients factor and find the solutions of x1, x2 and x3.
Answer:
Since f(-1) = 0 and f(-2) = 0, we can set up two equations:
(-1)³ + p(-1)² - q(-1) - 4 = 0
(-2)³ + p(-2)² - q(-2) - 4 = 0
Simplifying each equation, we get:
-1 + p - q - 4 = 0
-8 + 4p - 2q - 4 = 0
Simplifying further, we get:
p - q = 5
2p - q = 6
Solving for p and q, we can add the two equations together to eliminate q:
p - q + 2p - q = 5 + 6
3p - 2q = 11
Then, we can substitute the value of q from the first equation into this equation to solve for p:
3p - 2(q + 5) = 11
3p - 2q - 10 = 11
3p - 2q = 21
3p - 2(5 + p) = 21
p - 10 = 7
p = 17
Substituting this value of p into either equation for q, we get:
q = p - 5 = 12
Therefore, the coefficients are p = 17 and q = 12. To factor the expression, we can use synthetic division or long division. Using synthetic division, we get:
-1 | 1 17 -12 -4
|__ -1 -16 28
1 1 12
This gives us the factorization:
f(x) = (x + 1)(x² + x + 12)
To find the solutions, we can use the quadratic formula on the quadratic factor:
x = (-1 ± sqrt(1 - 4(1)(12))) / 2(1)
x = (-1 ± sqrt(1 - 48)) / 2
x = (-1 ± sqrt(-47)) / 2
x1 = (-1 + i(sqrt(47))) / 2
x2 = (-1 - i(sqrt(47))) / 2
Therefore, the solutions are x1 = (-1 + i(sqrt(47))) / 2, x2 = (-1 - i(sqrt(47))) / 2, and x3 = -1.
Step-by-step explanation:
give me thanks for more! your welcome bud!
17) The straight lines graph shows how many people are in a large cyber café online at differenttimes. If the people get online at a steady rate as shown in the graph, what will be the possibletime with only 450 people online?
Considering the straight line, which is the diagonal line from 1000 at 12 am going to 400 at 8 am, we can create an equation describing this line. We let be the point 12 am as zero since at 24 H time, 12 am is considered as 0:00. We have two points. (0,1000) and (8,400). We can solve for the slope of the line. We have
\(\begin{gathered} m=\frac{y_2-y_1_{}_{}}{x_2-x_1} \\ m=\frac{400-1000}{8-0}=-75 \end{gathered}\)We use the slope-intercept form of the equation to create an equation of the line describing the decrease of the people online at 12 am - 8 am. We already solve m. In this case, I will use the point (0, 1000). We have
\(\begin{gathered} y=mx+b \\ 1000=-75(0)+b \\ b=1000 \end{gathered}\)Hence, the equation of the line is
\(y=-75x+1000\)Let's check the number of people at 7:15 AM, which is written in decimal form as 7.25. and also for 7:30 AM, which is written in decimal form as 7.50. We have the following:
\(\begin{gathered} y=-75(7.25)+1000=456.25\approx456 \\ y=-75(7.5)+1000=437.5\approx438 \end{gathered}\)There are approximately 456 people online at 7:15 AM and 438 people online at 7:30 AM.
Upon looking at this, we can also check the other straight line from 8 am to 12 pm. We can use the same technique used above to solve the equation of the line and check the number of people at 8:30 AM.
The points are (8,400) and (12,800). The slope of the line is
\(m=\frac{800-400}{12-8}=100\)The equation of the line for this part is
\(\begin{gathered} y=mx+b \\ 400=100\cdot8+b \\ b=-400 \\ \\ y=100x-400 \end{gathered}\)To determine the number of people at 8:30 AM, we use the equation above to solve the value of y. We can rewrite 8:30 Am in decimal form as 8.50. We have
\(\begin{gathered} y=100(8.5)-400 \\ y=450 \end{gathered}\)Hence, there are 450 people online at 8:30 AM.
Answer: D) 8:30 AM
There are 130 people in a sport centre. 76 people use the gym. 60 people use the swimming pool. 32 people use the track. 23 people use the gym and the pool. 8 people use the pool and the track. 20 people use the gym and the track. 6 people use all three facilities. A person is selected at random. What is the probability that this person uses at least 2 facilities?
Answer:
64
Step-by-step explanation:
Answer:
64
Step-by-step explanation:
Please help me!! I don't get this at all
Answer:
i think it's 1/2 (a-8)
Step-by-step explanation:
so if u take 1/2 (a-8) and do distributive property ull get 1/2a and the 1/2 times 8=4 so u get 1/2a-4 I'm sorry if im wrong but this is what makes sense to me
A family spends 1/3 of its income for the mortgage and 1/6 of its income for food. What proportion of its income remains?
Answer: 1/2
Step-by-step explanation:
1/3 = 2/6 so 2/6 + 1/6 = 3/6
3/6 = 1/2
Answer:
1/2
Step-by-step explanation:
Since we're dealing with fractions, the total fraction is 1
Mortgage =1/3
Food =1/6
Fraction of income left=x
So we equate everything above to 1
\( \frac{1}{3} + \frac{1}{6} + x = 1\)
\( \frac{1}{3} + \frac{1}{6} + x = 1 \\ lcm = 6 \\ multiply \: each \: term \: by \: 6 \\ 6 \times \frac{1}{3} + 6 \times \frac{1}{6} + 6(x) = 6(1) \)
\( = > 2(1) + 1(1) + 6x = 6 \\ 2 + 1 + 6x = 6 \\ 3 + 6x = 6\)
\(6x = 6 - 3 \\ 6x = 3 \\ x = \frac{3}{6} = \frac{1}{2} \)