Answer: x-3=0 and 6=2x
Step-by-step explanation: to find what X equals for each equation you have to get X alone to get X alone in the first option you have to do +3 to both sides of the equal sign which leaves you with x=3 which you then do for the rest of the options an select all the one left with x=3.
In a lab experiment, 830 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 28 hours. How many bacteria would there be after 13 years, to the nearest whole number?
Answer:
1145
Step-by-step explanation:
830(2) 28/13
^ do that ok??????? plug it in!!!!!!!!
then do u know what u will get? u will get this !!!!!! y = 1145.09631989
round 2 da whole numba and den boom shakalaka B ) i got my question wrong so that i could put the right answer here. bye yall
The number of bacteria doubling every 28 hours will be 1145 after 13 hours.
What is the formula for exponential growth and exponential decaying function?The formula for exponential growth is y = y₀.e^(kt).
The formula for exponential decay is y = y₀.e^(-kt).
In the case of doubling the growth of bacteria, we can use the formula,
[tex]y_f = y_0\times2^{\frac{t_r}{t}[/tex], where [tex]y_f[/tex] represents the final population, [tex]y_0[/tex] is the initial population, [tex]t_r[/tex] is the time we are required to determine, and [tex]t[/tex] represents the time rate growth.
Therefore from the given information, the number of bacteria after 13 hours will be,
[tex]y_f = 830\times2^{\frac{13}{28}[/tex].
[tex]y_f = 830\times1.38[/tex].
[tex]y_f = 1144.86[/tex] or 1145 bacterias.
Q. In a lab experiment, 830 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 28 hours. How many bacteria would there be after 13 hours, to the nearest whole number?
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R114 for 13 tickets. How much per ticket
Answer:
R 8.8
Step-by-step explanation:
Here, we want to get the price per ticket
from the question, we have that 114 buys 13 tickets
thus, the cost of a ticket is R 114/13
= 8.80
Find the volume: 8 ft 4 ft 14.5 ft
help pls-?
Answer:
464 ft
Step-by-step explanation:
How to find out volume:
Length x Width x Height
= Volume
--
8 x 4 x 14.5 = 464 ft
Calculate the volume of the prism shown below
Answer:
64
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
4x4=16
2x4=8
8x4=32
± =56²
Charlie drove 360 miles in 5 hours.
At the same rate, how many miles would he drive in 8 hours?
Step-by-step explanation:
5 360
8 x
5x=360•8
x=576miles
Find the factors of 9q²-45pq+8q-40p
Answer:
(x−5y)(9x+8)
Step-by-step explanation:
9x^2−45yx+8x−40y
Do the grouping 9x^2−45yx+8x−40y=(9x^2−45yx)+(8x−40y), and factor out 9x in the first and 8 in the second group.
9x(x−5y)+8(x−5y)
Factor out common term x−5y by using distributive property.
(x−5y)(9x+8)
Which algebraic expression is equivalent to the expression below?
9(2x + 2)
A.
18x + 2
В.
9x + 4
C.
36x
D.
18x + 18
btw I will mark brainliest!
Answer:
I guess the answer is D - 18x + 18
Can someone just tell me the value of “w” Thanks!
Answer:
w = 31
Step-by-step explanation:
Since this is a rhombus
==> GFE + FED = 180
2w + w + 87 = 180
==> w = 31
Solve 12x-19=5x+9......please show working
Answer:
x=4 I'm sorry that I used
what is the slope of the line that passes through the points (10,2) and (19,14) write your answear in simplist form
Answer: 1 1/3
Step-by-step explanation: slope is the difference in y values over the difference in the c values
Answer:
[tex] m = \frac{14 - 2}{19 - 10} \\ \frac{12}{9} \\ m = \frac{4}{3} [/tex]
the slop is equal to 4/3
Giving brainlest and 20 points
What is the surface area of the solid?
A.
46 square inches
B.
15 square inches
C.
40 square inches
D.
23 square inches
Answer:
C. 40 square inches but i could be wrong
five books cost¢21. what is the price cost of seven similar books
Answer:
Your answer should be $29.40
Step-by-step explanation:
If you divide 21 by 5 you get 4.2, so each book costs $4.20.
4.2 x 7 = 29.4
Therefore, your total cost for 7 books will be $29.40
I hope this helps!
PLS HELP MEEEE I need to do this fast
Simplify the expreesion (6x²) (4x²)
Answer:
the answer is 24x⁴
first you multiply 6 by 4,
next you multiply X² by x², which really means you add the numbers on top of the variable
Please help im desperate. :)
Which of the answer choices describes Monica's budget?
Monica's Budget
Income $655 Fixed Expenses
Living Expenses Rent $200
Electric $45 Contingency $20
Transportation $78 Annual Expenses
Food $190 Car Insurance $945
Entertainment $30 Books $280
It is in deficit.
It is balanced.
It is in surplus.
HELP ASAP!!!!!!!!!!!!THIS IS QUESTION 43
Answer:
It is in deficit
Step-by-step explanation:
If you take her income (655) and subtract all of the expenses, including adding the annual expenses together and dividing them by 12 months, the result would be negative.
It is in deficit describes the Monica's budget.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
We can calculate Monica's total fixed expenses as:
Rent + Electric + Transportation + Food + Entertainment = $200 + $45 + $78 + $190 + $30 = $543
Her annual expenses are:
Car Insurance + Books = $945 + $280 = $1225
Adding her fixed and annual expenses gives:
$543 + $1225 = $1768
Since her income is only $655, her expenses exceed her income and she is operating at a deficit. Therefore, the answer is: It is in deficit.
Hence, It is in deficit describes the Monica's budget.
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y times the square root of x
Answer:
When you multiply a whole number by a square root, you just put the two together, with the whole number in front of the square root. For example, 2 * (square root of 3) = 2(square root of 3). If the square root has a whole number in front of it, multiply the whole numbers together.
Step-by-step explanation:
its there
what mouse walks on 2 feet?
that one was easy
Now, what duck walks on 2 feet?
Answer:
A duck with 2 feet
Answer:
Donald duck and Remy
Step-by-step explanation:
What is the value of x
f(x)=4x^2+7x+18 find f (-9)
Answer: f(-9)= 243
Step-by-step explanation:
f(x) = 4x²+7x -18
f(-9) = 4(-9)²+7(-9)-18
= 4(81) -63-18
= 324- 81
= 243
What is my slope? How many assignments do I do?
Answer:
Your image is not showing up on my screen
but to find a slope is To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.
Step-by-step explanation:
5. Katie is 4 years younger than her brother. When
Kate was 27, how old was her brother?
Answer:
Katie’s brother is now 31 years old
Step-by-step explanation:
You would add 4 to 27
Please help me this is my final!!!
Answer:
n=10
Step-by-step explanation:
Because all exterior angles =360
so 360/36=10
hope this helps
Answer:
n=10
Step-by-step explanation:
(10-2)x180 = 1440
1440/10 (the angle of each interior) = 144
180-144 = 36
Use the table below to determine the approximate height of the flag pole.
Answer:
B 17.5 ft
Step-by-step explanation:
tangent = opposite / adjacent
tan 35° = h / 25
multiply both sides by 25
h = 25 (tan 35°)
tan 35° = 0.70 (from your calculator)
h = 25 (0.70)
h = 17.51 ft.
You put $500 in an account. The
account earns $55 simple interest in 5
years. What is the annual interest
rate?
HURRY HELP
Answer:
2.2% per year
Step-by-step explanation:
Problem:
You deposit $500 into a bank account and received $55 simple interest after 5 years. What had been the interest rate?
Result:
The interest rate was 2.2% per year.
Explanation:
Find interest rate by using the formula I = P*i*t , where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. In this example I = $55, P = $500 and t = 5 years, so
i = 55/500*5
i=0.022 = 2.2% per year
Hope it helps XD
Which equation could represent the line of best fit for this data? HURRY HELP
ILL
MARK BRAINLIEST
Question 1 options:
68°
136°
158°
112°
9514 1404 393
Answer:
(d) 112°
Step-by-step explanation:
Opposite angles in an inscribed quadrilateral are supplementary.
∠P = 180° -∠R = 180° -68°
∠P = 112°
Answer:
112 degrees.
Step-by-step explanation:
This is an isosceles trapezium.
So the required angle = 180 - 68 = 112.
2
A cell phone tower is the
shape of a rectangular
pyramid. The base has
dimensions of 12 ft by 16 ft.
The tower takes up 1152 cubic
feet of space. How many feet
tall is the tower?
if the diameter of my burger is 5cm,what is the area?
Answer:
19.625cm squared because you have to divide the diameter by 2 to get the radius.
Step-by-step explanation:
Hey help a tom outtttttttttttttttttttttt
Answer: 3X2+4x=-2
Step-by-step explanation:because thats the mathematic equation for a average square