A culture of bacteria has an initial population of 640 bacteria and doubles every 2 hours. Using the formula P_t = P_0\cdot 2^{\frac{t}{d}}P t =P 0
⋅2 t/d , where P_t is the population after t hours, P_0
is the initial population, t is the time in hours and d is the doubling time, what is the population of bacteria in the culture after 7 hours, to the nearest whole number?
Answer:
Pt= 7240.7734 ≈ 7241
Step-by-step explanation:
which expression means five times the sum of b and two
A. 5(B+2)
B. 5B+2
C. (B+2) 5
D.B (5+2)
Step-by-step explanation:
The answer is a (bodmas)
A jar contains x quarters and y nickels. The jar contains $5.45. What linear equation represents the relationship between the number of quarters, the number of nickels, and the value of the coins in the jar?
Answer:
$0.25x + $0.05y = $5.45
Step-by-step explanation:
Recall that 1 nickel = $0.05
and 1 quarter = $0.25
Given that the jar contains x quarters and y nickels
The total amount of nickel in the jar
= $0.05y
The total amount of quarter in the jar
= $0.25x
Hence the total amount in the jar considering both nickels and quarters
= $0.25x + $0.05y
Since the jar contains $5.45
then
$0.25x + $0.05y = $5.45
This is the linear equation that represents the relationship between the number of quarters, the number of nickels, and the value of the coins in the jar
Someone please please help
Answer:
The amount of apples is the Xs and The cost is the Ys
Step-by-step explanation:
How do you do this what the answer to number 12
PLS HELP 10 POINTS
QUESTION IN PIC
Answer:
Some integers are irrational
Step-by-step explanation:
An integer must be a whole number so it will always be rational.
40 points will give brainliest to the first person that is right what is 12 4/5% written as a decimal
Answer:
0.128
Step-by-step explanation:
you have 100$ to buy shirts and jeans. shirts cost 100 dollars each and jeans cost 25 per pair. write an inequality describing the possible numbers of shirts and jeans that you can afford. let x be the number of shirts and y be the number of pairs of jeans
Answer:
100[tex]\geq[/tex]10x+25y
Step-by-step explanation:
im going to assume that a shirt cost 10 dollars
Step-by-step explanation:
100≥10x+25y
It's The Answer
Find the area of the circle below to the nearest tenth.
25 ya
Blank 1:
Answer:
490.9 yards squared.
Step-by-step explanation:
you would use the formula for area of a circle r^2 x pi
the diameter is 25, so the radius is 1/2 of that or 12.5
12.5^2 x pi = 490.9
find the value of given expression
[tex] \sqrt{1254 \times 1254} [/tex]
Answer:
√{1254×1254}=√1254²=±1254 is your answer
Step-by-step explanation:
1) Simplify 1254 × 1254 to 1572516.
[tex] \sqrt{1572516} [/tex]
2) Since 1254 × 1254 = 1572516, the square root of 1572516 is 1254.
[tex]1254[/tex]
Therefor, the answer is 1254.
solve the equation by factoring
plssss hell
Answer:
x = {-5, 4}.
Step-by-step explanation:
2x^2 + 2x - 4 = 36
2(x^2 + x - 2 = 18)
x^2 + x - 2 - 18 = 0
x^2 + x - 20 = 0
(x + 5)(x - 4) = 0
x = -5, 4.
plzz right aanswer only plzz 10!! ponits
Answer:
its 5
Step-by-step explanation:
Answer:
50.24
Step-by-step explanation:
help please!! it’s due today and this is the one answer i still need!! (view picture)
Answer: q=0.3p-2
Well everytime P goes up by one then Q goes up by positive 0.3
Which of the following is equivalent to 3/33x^3y^6
Answer:
Step-by-step explanation: d
The commuting distances, in miles, of 10 employees were used to make the box plot shown above. Which of the sets of distances below matches the given box plot?
A.
Commuting Distances: 10, 15, 15, 20, 20, 30, 30, 30, 45, 45
B.
Commuting Distances: 10, 15, 15, 20, 20, 20, 30, 45, 45, 45
C.
Commuting Distances: 10, 15, 15, 20, 20, 20, 30, 30, 45, 45
D.
Commuting Distances: 10, 15, 20, 20, 20, 20, 30, 30, 45, 45
Answer:
b
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
please please please helppppppppp
On question 1 of this review, Marcy attempted to solve for the value of x. On the left side of her equation, she simplified the terms to 5x +19 = 5(x -3) +2. What did she do incorrectly? What should she have done to simplify her answer correctly? The original question is below.
3(x+4)-2x+7=5(x+3)+2
Answer:
Step-by-step explanation:
She added 3x and -2x, getting 5x, instead of x. She needs to pay more attention to the positive/negative signs.
somebody help me pleaseeee
Answer:
I can't see the picture. Sorry
Step-by-step explanation:
A rabbit weighed 4 ounces when it was born. The rabbit gained 2 ounces each week for the next 12 weeks. Which equation models the weight of the rabbit, w, x weeks after it was born, where x ≤ 12?
Answer: w = 2x + 4
Step-by-step explanation: The rabbit started at 4 ounces, and gained two each week.
Week 0 = 2(0) + 4 = 4
Week 1 = 2(1) + 4 = 6
Week 2 = 2(2) + 4 = 8
Week 3 = 2(3) + 4 = 10
simplify the expression
-7p + -2 + -2 + -10 + -9
Answer:
=−7p−23
Step-by-step explanation:
Answer:
-23 - 7 p
Step-by-step explanation:
Hope it helps!
Math help please. Which rule explains why these triangles are congruent? ( A). ASA (B.) AAS (C.) SAS ( D.) These triangles can not be proven to be congruent
Answer:
Step-by-step explanation:
Remark
You have 3 angles which are congruent. You can prove similarity. You cannot prove congruency. You must have 1 side to show conguency.
42 donuts in 6 boxes = donuts per box
Answer:
42÷6 derrrrrrrrrrrr lol
Anna bought snacks for her team's practice. She bought a bag of oranges for $3.27 and a 4-pack of juice bottles. The total cost before tax was $5.03. How much was each bottle of juice?
Answer: $____
Answer:
0.44 cents per bottle
Step-by-step explanation:
I HOPE THIS HELPS YOU OUT WITH YOUR QUESTION! PLZ LET ME KNOW IF IT DID! IT MAKES ME FEEL GOOD THAT SOMEONE APPRECIATES IT! ANYWAY, IF YOU HAVE A FEW MINUTES PLZ GOT TO MY PROFILE AND THANK MY ANSWERS (THE MORE THE MERRIER)
Five more than twice a number is less than one more six times the number. Do write down an equation or a number?
!!!Please help will give the brainliest, and please do not put in a silly answer because you want some points or I will report you!!! What are the properties for each of these shapes and please be specific for each, a kite, trapezoid, square, rectangle, parallelogram, rhombus?
Answer:
The properties of trapezoid apply by definition (parallel bases).
The legs are congruent by definition.
The lower base angles are congruent.
The upper base angles are congruent.
Any lower base angle is supplementary to any upper base angle.
The diagonals are congruent.The bases are parallel by definition.
Each lower base angle is supplementary to the upper base angle on the same side.
Chris has a six sided die. Create a sample
space of possible outcomes for rolling a number. Is this simple or compound event
Answer:
Sample space: {1, 2, 3, 4, 5, 6}
Simple event
Step-by-step explanation:
Sample space is a list of all the possible outcomes.
This is a simple event because you are only doing one event, such as rolling a die.
A compound event would be multiple simple events, such as flipping a coin and choosing a marble from a bag.
How is this triangle classified?
Answer:
1st choice!!!
Step-by-step explanation:
Answer:
Isosceles obtuse
Step-by-step explanation:
There are a total of 82 students in a drama club and a yearbook club. The drama club has 18 more students than the yearbook club. How many students are in the drama club? the yearbook club?
Answer:
Drama club 82 students
yearbook club 100 students
Find the missing number to make the fractions equal. ?/11= 12/44
Answer:
3
Step-by-step explanation:
11x4=44
3x4=12
hope this helps :)
What is the common denominator for 7 and 2
Answer:
14
Step-by-step explanation:
HELP!!! NEED HELP!!!!
Answer:
C
Step-by-step explanation: