Answer:
Step-by-step explanation:
In order to determine the equation, consider that any exponential growth equation can be written as follow:
[tex]f(t)=A(1+r)^t[/tex]
where,
f(t): amount of bacteria after t hours
A: initial amount of bacteria = 3
r: growth rate in decimal form = 0.15 (15%)
t: time in hours
By replacing the previous values into the expression for f(t) you get;
[tex]f(t)=3(1+0.15)^t\\f(t)=3(1.15)^t[/tex]
Hence, the answer is f(t) = 3(1.15)^t
Now, replace t = 13 to determine the amount of bacteria after 13 hours:
[tex]f(13)=3(1.15)^13\\f(13)=18.46[/tex]
Hence, after 13 hours there are approximately 18 bacteria
6. Which value of x makes the equation below true?
5x - 3 = 11 A. 1.6 B. 2.8 C. 40
D. 70
Answer:
It's B
Step-by-step explanation:
2 times 5 = 10
0.8 times 5=4
10 + 4 =14
14-3=11
A health food store has launched a new pack of vitamins for children. The store records the number of packs ordered by a random sample of 100 online customers and the number of packs ordered by a random sample of 100 walk-in customers.
Which of the following inferences can be drawn about the buying pattern of the online customers versus that of the walk-in customers?
A. Online customers buy an average of four packs compared with walk-in customers, who buy an average of one pack.
B. Online customers buy an average of five packs compared with walk-in customers, who buy an average of two packs.
C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs.
D. Online customers buy an average of five packs compared with walk-in customers, who buy an average of one pack.
Answer:
The Answer is C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs. Step-by-step explanation:
The mean for online customers is 4.3
The mean for walk in customers is 1.8
Round the 4.3 to 4 and Round the 1.8 to 2
The price of jeans was reduced $5 per week for 4 weeks. By how much did the price of the jeans change over the 4 weeks?
$30
-$20
$9
-$25
Answer:
B. -$20 b
Step-by-step explanation:
4 times five is 20 and it is reduced
The following figure shows a right triangular prism. Which expression represents the surface area of the prism?
I WILL GIVE BRAINLIST FOR CORRECT ANSWERS!!!
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 11ft³
Which equation gives the volume of the sphere?
A: V=4/3(11)π
B: V=2/3(11)π
C: V=4/3(11)
D: V=2/3(11)
Answer:
I think it's D
Step-by-step explanation:
hope this helps
In one to two sentences, analyze how Jim Crow laws led to social divisions in the South.
Answer:
Because of the Jim Crow laws in the South, there was a large social divide between races. For example, an African American man would not be allowed to have better wealth or status than a Caucasian man or else he could face harsh punishment that could go as far as death.
Step-by-step explanation:
Hope this helps! Sorry if this is poorly worded haha
I'd recommend word-smithing it a bit to fit your rubric in your class more
can someone help me pls? it helps a lot with my grades. (:
Answer:
D. 8,9
Step-by-step explanation:
Square root of 74 is around 8.6 So we want to find numbers that are less than 8.6 and more than 8.6
Option D is best becasue 8 < 8.6 < 9.
PLEASE HELP
For each of the number lines, write an absolute value equation in the form |x - c|=d, where c and d are some numbers, to satisfy the given solution set.
Answer:
I believe it's [tex](-8)-0=-8[/tex]
Step-by-step explanation:
Just add the lines on the side and it is on the line and x and d are the same number. If it's wrong I'm so sorry!!
Find the real solution(s) of the following equation. t3 = 343
i don't really understand your question, maybe there is more too it, than just that, i don't think i answered it completely, but i hope this help!
Answer:
T = 340 3 = 3 / T + 3 = 340
Step-by-step explanation:
"T" will be used as a variable, and to find out what "T" equals, we need to take the answer of the problem and take away "3", 343 - 3 = 340
"T" = "340"
T + 3 = 340
Not Verified!
The square below represents one whole.
Express the shaded area as a fraction, a decimal, and a percent of the whole.
Answer:
Fraction: there are 100 squares and 44 of them are blue
44 / 100
Decimal: 24 / 100 = 0.44
Percent: 0.24 x 100 = 44%
Solve for x
41.68x+2000=60x
Answer:
109.17030567685
Step-by-step explanation:
41.68x+2000=60x
-41.68x -41.68x
2000=18.32x
/18.32 /18.32
109.17030567685=x
(PLS HELP MY TEACHER WANTS ME TO PASS THIS!!)
Which relation is NOT a function?
A. {(0, 0), (1, 1), (1, 2)}
B. {(0, 1), (2, 2), (3, 1)}
C. {(1, 0), (3, 3), (0, 1), (2, 3)}
D. {(3, 8), (6, 11), (8, 3), (11, 6)}
Answer:
A
Step-by-step explanation:
Because 1 has more than one output, first they are putting 1 and 1 together, next they are putting it with 2, 1 has more than one output.
Answer:A has 2 pairs of "1" x-coordinates so it is NOT a function.
Step-by-step explanation:
HELP URGENT PLEASE 50 POINTS
Answer:
864 inches
1ft/12in
Step-by-step explanation:
To find out how many inches are in this 72 foot tree simply divide 72 by 12
the reason we do this is because 12 inches are in 1 foot
and this comes out to 864inches
Answer:
864 inches
Step-by-step explanation:
Ive done this before
ASAP HELP PLEASE ITS HOMEWORK
Answer:
[tex]=132[/tex]
Step-by-step explanation:
[tex]A=2AB+(a+b+c)h[/tex]
[tex]AB=\sqrt{s(s-1)(s-b)(s-c)}[/tex]
[tex]s=\frac{a+b+c}{s}[/tex]
Now we have to solve for A:
[tex]A=ah+bh+ch+\frac{1}{2}\sqrt{-a^{4}+2(ab)^2+2(ac)-B^4(bc)^2-c^4[/tex]
[tex]4*10+3*10+5*10+\frac{1}{2}*\sqrt{-4^4+2*(4*3)^2*(4*5)^2-3^4+2*(3*5)^2-5^4}[/tex][tex]=132[/tex]
-x=-6 what is X is it 6 or -6?
Answer:
6
Step-by-step explanation:
It may be confusing to see why it would 6 instead of -6. The missing value in the X already includes the negative symbol. So if the 6 was the X value, then the negative sign would apply to the 6 making it - 6. The results would be:
⇒ [tex]-x = -6[/tex]
⇒ [tex]-6=-6[/tex]
How far off the ground is the top of the ladder? Round your answer to the nearest tenth
10.2 m - the second option
Root 11^2 - 4^2 = 10.2469...
Hope this helps!
Answer:
10.2 m - the second option
Root 11^2 - 4^2 = 10.2469...
Step-by-step explanation:
Breaking a cookie in half creates a straight side 10 cm long.
Answer:
whats the question
Step-by-step explanation:
Steven draws △ABC, with m∠ABC = 110°, m∠BAC = 40°, and m∠BCA = 30°.
Which triangle represents Steven’s triangle?
(Picture/Image Below)
Answer:
x
Step-by-step explanation:
angle bac and bca need to be acute and similar in size and angle abc needs to be an obtuse angle. This is the only triangle where angle abc is obtuse.
H E L P ^^ (WiLl GiVe BrAiNlIeSt)
ASAP!!!!!!!!!!!!!
Answer:
3216 cm²
Explanation:
Area of triangular prism = base × height + Length × (perimeter of base)
Here given:
base: 14 cmheight: 24 cmlength: 45 cmperimeter: (14 + 25 + 25) = 64 cm===========================================
Area of the prism = 14 × 24 + 45 × 64 = 3216 cm²
a bag contains 4 red. 4 blue, 4 green and 4 yellow marbles. a marble is randomly pulled from the bag and replaced seven times. The table shows the outcome of the experiment. Which marble colors observed frequency is closest to its expected frequency.
Answer:
No frequency
Step-by-step explanation:
since there is a equal amount of marbles you have an equal chance to get a marble
HELPPPPP
A pack of cinnamon-scented pencils sells for $5.00. What is the sales tax rate if the total cost of the pencils is $5.35?
Answer: $0.35
Step-by-step explanation:
Answer: 7%
Step-by-step explanation:
Ok, we'll start by listing the facts.
Facts
Pack of pencils is $5
Total cost: 5.35
This means the sales tax is 35 cents, but we need to find the percentage to get the sales tax rate.
We can do this by dividing .35 by 5
0.35÷5= 0.07
Convert 0.07 to a percentage by multiplying it by 100
0.07x100= 7
Hence the sales tax rate is 7%. We can check to make sure this is correct by finding 7% of 5, and then adding the result to the 5.
7% of 5= 0.35
5+0.35= 5.35
Hope this helps, and brainliest would be appreciated :))
I am really confused please help!
[tex]\frac{-4}{5}x +7=-13[/tex] Find the value of x
Answer: x = 25
Step-by-step explanation:
[tex]-\frac{4}{5} x + 7=-13[/tex]
1. First get X by itself by subtracting 7 from both sides
[tex]-\frac{4}{5} x=-20[/tex]
2. Multiply by the reciprocal of 4/5 on both sides
[tex](-\frac{5}{4} )-\frac{4}{5} x=-20(-\frac{5}{4} )[/tex]
3. Simplify
[tex]x=25[/tex]
Answer the question about "Paper Clips Used
there are 4 questions
please help me!!!!
Answer:
19. Other
20. 80
21. 125
22. per minor grid line it goes up by 10
Step-by-step explanation:
Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths.
Answer:
length is 6
width is 24
width is 36
Step-by-step explanation:
sorry its late
5/3=t/6
find the value of "t"
Answer:
[tex]t = 10[/tex]
Step-by-step explanation:
Step 1: Cross Multiply
[tex]\frac{5}{3} = \frac{t}{6}[/tex]
[tex](5 * 6) = (3 * t)[/tex]
[tex]30 = 3t[/tex]
Step 2: Divide both sides by 3
[tex]\frac{30}{3} = \frac{3t}{3}[/tex]
[tex]10 = t[/tex]
Answer: [tex]t = 10[/tex]
20. Suppose five cards are drawn from a deck. Find the probability of obtaining the indicated cards.
Three aces and two kings
Multiply.
1/a x a, if a ≠ 0
What is this supposed to mean?
10 points and brainly
Lara reads 10 chapters in 4 hours.
At this pace, how long will it take her to read 25 chapters?
Enter your answer in the box.
_____h
Hey there! BRAINLIEST! Lol, because I have no life whatsoever, but um if your on this question. Thank you. Please help me out! I appreciate you! We need more people in this world like youu!
Answer:
LCD=5 Final answer= 5/5 -> 5/1 -> to 5
Step-by-step explanation:
First, find the LCD(least common denominator) which is 5. This is done listing the multiples of each number in this case the lowest number is 5.
3/5 will stay the same but for 1/10 you need to convert it to the fraction 2/5 Next add the fractions together to get 3/5 + 2/5 = 5/5 of 5/1 or just 5
Answer:
LCD=5 Final answer= 5/5 -> 5/1 -> to 5
Step-by-step explanation: