Answer: x = 4 + y
x= -2 - y/2
Step-by-step explanation:add y to both sides of the equation
The number of bacteria at the beginning of an experiment was 30 and the bacteria grow at an hourly rate of 1.4 percent. Using the model given by () = 0e, estimate the number of bacteria, rounded to the nearest whole number after 20 hours.
Answer:
The estimated number of bacteria after 20 hours is 40.
Step-by-step explanation:
This is a case where a geometrical progression is reported, which is a particular case of exponential growth and is defined by the following formula:
[tex]n(t) = n_{o}\cdot \left(1+\frac{r}{100} \right)^{t}[/tex] (1)
Where:
[tex]n_{o}[/tex] - Initial number of bacteria, dimensionless.
[tex]r[/tex] - Increase growth of the experiment, expressed in percentage.
[tex]t[/tex] - Time, measured in hours.
[tex]n(t)[/tex] - Current number of bacteria, dimensionless.
If we know that [tex]n_{o} = 30[/tex], [tex]r = 1.4[/tex] and [tex]t = 20\,h[/tex], then the number of bacteria after 20 hours is:
[tex]n(t) = 30\cdot \left(1+\frac{1.4}{100} \right)^{20}[/tex]
[tex]n(t) \approx 39.616[/tex]
[tex]n(t) = 40[/tex]
The estimated number of bacteria after 20 hours is 40.
A line passes through the point (0,-4) and has slope-5. What is the equation of the line in slope-intercept form?
Answer:
Y=-5x-4
Step-by-step explanation:
What is the sum of (5x + x - 3) and (-4x2 - x +9) ?
Answer:
(4x+3)⋅(2−x)
Step-by-step explanation:
(6x - 3) + (((0 - 2^2x^2) - x) + 9)
-4x2 - 3x + 8x + 6
-x • (4x+3)
2 • (4x+3)
(-x+2) • (4x+3)
(4x + 3) • (2 - x)
If this was helpful, please mark brainliest. Have a beautiful day!
Subtract (8.5107)-(4.5109) 1) Determine the smallest power of 10. 2) Decrease the larger power of 10 until it matches the one found in Step 1. 3) Add or subtract the number factors and keep the power of 10. 4) Convert to scientific notation if needed.
Answer:
which answer best describes this picture
a small apple weighs 6.2 ounces and it’s divided into 4 equal parts how much does each piece weigh?
PLEASE HELP ASAP!?!?!?!?!!!?!?!?!?!?!?!
The diameter of a pizza is 13 1/4 inches what is the length in inches of the diameters of 6 pizzas?
Answer:
79.5
Step-by-step explanation:
Order the math fact completion rate for each student from the fastest to the slowest.
Answer:
could you put a picture of the work so i can anwser this question
Step-by-step explanation:
A man has 14 of a kilogram of couscous.He shares at equally amongst 2 people. How many kilograms does each person get? Input your answer as a fraction of a kilogram.
Answer:
:⊃
Step-by-step explanation:
7 milloin 481 thousand 624in standard form
Answer:
7,481,624
Step-by-step explanation:
Answer:
7.48 x10^6
Step-by-step explanation:
2/5 times 2/3 (28 points)
Answer:
4/15
Step-by-step explanation:
Answer:
2/5 * 2/3= 4/15, cannot be simplified.
Step-by-step explanation:
Multiply the numerators, 2*2
Denominators 5*3
is g(x)=2x-x^(3)+8 a polynomial function
Answer:
Yes, it is
Step-by-step explanation:
Yes, because all x terms have null or positive integer exponents:
g(x) = -x^3 + 2x^1 + 8^0.
Juan is painting the floor of an outdoor racquetball court. He knows that 1 gallon of paint will cover the shaded area shown below. If it takes Juan 3h hours to apply 1 gallon of paint, approximately how many hours will it take him to paint the entire court? Show your work or explain in words. I NEED HELP NOW
Answer:
it would probably be 7 hours
In ΔABC, the measure of ∠C=90°, BC = 69 feet, and CA = 98 feet. Find the measure of ∠B to the nearest tenth of a degree.
The answer is 54.9
B=tan (98/69) B=54.8513 = 54.9
Show Your Work!
Will Mark Brainliest!
Answer:
x= -4
Step-by-step explanation:
find the midpoint of the line segment with the given endpoints (9, -8) (-10, -2)
Answer:
mid point=(-1/2,-5)
Step-by-step explanation:
A home has a triangular backyard. The second angle of the triangle is 4 degrees more than the first angle. The third angle is 26 degrees more than three times the first angle. Find the angles of the triangular yard.
Answer:
66.4, 70.4, 223.2
Step-by-step explanation:
make the equation x + (x+4)+ 3x+24=360
then it's 5x+28=360
subtract 28 on both sides
5x=332
then divide by 5 on both sides
x=66.4
then, just plug in the numbers
A train travels 558 miles in 3 hours. At this rate, how far does the train travel
in 6 hours?
186 miles
O 1,674
0
1,116 miles
O 18 miles
Answer:
the answer is 1,674
Step-by-step explanation:
because if 3hours in 558 miles you multiply the 3hours in 558miles and the answer is 1,674
Is this rational or irrational I really need help ASAP! Will mark brainlist.
I need help with just the middle one.
Answer:
Rational
Step-by-step explanation:
classify triangles by its sides and angles geometry
Answer:
1. isosceles and acute
2. Scalene and acute
3. Equilateral and equiangular
4. Right (and isosceles ?)
(not sure ab isosceles for the last one but everything else is fine)
:)
You can buy 5 cans of green beans at the village market for $2.30, or you can buy 10 of them at Best Food for $5.10. Which place is the better buy?
Answer:
The village market
Step-by-step explanation:
Price per can at the village market
= 2.30÷5
= $0.46
Price per can at Best Food
=5.10÷10
= $0.51
Answer:
Village market
Step-by-step explanation:
Find the unit rate at village market and Best food and compare.
Village market:
Rate per can = 2.30 ÷ 5
= $ 0.46
Best food:
Rate per can = 5.10 ÷ 10
= 0.51
0.46 < 0.51
Buying can from village market is best buy as that is less priced
Compare 468,119 and 486,191
Answer:
468,119 < 486,191
Step-by-step explanation:
compare the left numbers. Four is equal to four, so go right. 6 is less than 8, so 468,119 < 486,191
I NEED HELP! I WILL MARK YOU AS BRAINLIEST IF YOU ANSWER CORRECTLY! :D
Answer:
1. Train B is faster
Step-by-step explanation:
Train b travels a greater distance in 2 hours than train A.
Train B travels 250 miles in 2 hours, while Train A travels only 120 miles.
what is the average speed of 600 meters and 40 seconds
Answer:
15 meters per secondStep-by-step explanation:
aver speed = distance / time
= 600 meters
40 seconds
= 15 meters per second
Write the slope-intercept form of the equation for a line with slope 1/3 and y l-intercept at (0,-2/5
Answer:
y=1/3x-2/5
Step-by-step explanation:
THIS IS DUE IN 10 MINUTES I WILL AWARD BRAINLIEST
fill in the chart
percent row: 120% 0.03% 15%
Decimal row: 1.2 0.0003 0.15
Fraction row: 12/ 10 3/10000 3/20
16 = 4/3 (5x+15) solve for x in the simplest form
Answer:-0.6
Step-by-step explanation:
thank me later lol
Based on the information in the table, how much will Monique earn if she works 36 hours in a week?
Answer:
Where is the table?
Step-by-step explanation:
find the distance from point A to segment BC
(i also need the wrk to go with it i don’t understand)
Answer:
it would probably be t series
write and solve your own word problem for 1.3 x 2.79? solve without using a calculator
Answer:
The answer is 3.62
Step-by-step explanation:
Here is a word problem that you can use.
Jimmy has exactly 2.79 points. His other friend Robert has 1.3 times his points. How many points does Robert have?
(And yes, I wrote this problem myself and I do not mind you using it! )
Hopefully this helped!
Answer:
You buy 1.3 pounds of cheese, and 2.79 is the price for this cheese, how much to do you spend for cheese.
4. Van's Deli sells hot dogs for $2 and hamburgers for $5. His daily sales goal is $200.
Answer:
the deli would have to sell 100 hot dogs or 40 burgers
Step-by-step explanation: