Answers
Answer:
1) 2^9 = 512
2) 2^(3t) = 2^6 for t=2
Step-by-step explanation:
1) An exponent is used to signify repeated multiplication. Here, the factor 2 is repeated 9 times, so the expression can be written using an exponent as ...
2^9
Using any of a variety of means, the value of this expression can be found to be ...
2^9 = 512
__
2) Assuming the bacteria reproduce by multiplying by some factor in a given time, we can divide the original expression into 3 parts:
(2×2×2) × (2×2×2) × (2×2×2)
If this represents the number after 3 hours, then the number after 2 hours is expected to be ...
(2×2×2) × (2×2×2) = 2^6
That is, there will be (2 h)/(3 h) = 2/3 times as many multiplications by a factor of 2. (2/3)(9) = 6 will be the exponent for the number after 2 hours.
2. as you can split up the fact in 3 hours it is 2^9 to find out one hour (divide by 3) which is 2^3 so we would just multiply it by 2 which equals 2^6
Related Questions
I need help due today
Answers
Answer:
Step-by-step explanation:
y=mx+b b= y-intercept y-intercept=where the line crosses the y-axis m=slope slope== rise/run or slope formula, m=y2-y1/x2-x1
For example, number 1's slope is 5/3. On a graph, you would go up 5 (not in block, but in numerical value) and right 3. The y-intercept is -2. This is where your line starts on the graph.
sorry, cant help ya there buddy
Plz, help! Plz, write answer in complete sentences!
Answers
Answer:
18
Step-by-step explanation:
If 4050 divided by the mystery number is 225, then 4050 divided by 225 is the mystery number. 4050 divided by 225 = 18, so 18 is the mystery number.
Step by step:
So 4050 divided by that unknown/ mystery number is 225. Now you do 4050/225 and your total is 18!!
A factory that manufacturers school supplies will not sell any ruler whose actual length is more than 0.05% different than it's intended length.
Determine the smallest possible length of a 12-inch ruler that would meet this qualification. inches
Answers
Answer: 11.994
Step-by-step explanation:
0.05%(0.0005) x 12 = 0.006
12 - 0.006 = 11.994 inches
Last week, Adriana made a batch of peanut butter ice cream from scratch. She used 2 cups of peanut butter and 6 cups of cream. It was so good that she made another batch this week. This time, she used 3 cups of peanut butter and 9 cups of cream. Which batch had a stronger peanut butter flavor?
Answers
Answer:
They are the same
Step-by-step explanation:
Both times they used the ratio of 1:3 for the peanut butter to cream, so they will taste the same.
Both ice cream have the same ratio
7 to 10
Round the decimal to the nearest hundredth, then make that a percent
Answers
PLS I NEED HELP ASAP
Answers
Answer:
(-13.5, 4.5)
Step-by-step explanation:
A garden hose was left on in a yard and spilled 78 gallon every 23 minute. Find the average number of gallons spilled per minute.
Answers
Answer:
3.391 Gallons Per Minute
Step-by-step explanation:
78/23=3.391
Round 3.391 to 3.4
Answer:
≈3.39130434783 gallons per minute
Step-by-step explanation:
The information we get is a ratio, describing how many gallons of water will be wasted in 23 minutes, expressed as:
[tex]78 : 23[/tex] OR [tex]\frac{78}{23}[/tex]
We will use the fraction, the denominator is representing the time, which in this case, is 23 minutes. We want to have the denominator as 1 to find how much water will be spilled in one minute, to do this, we can divide both the numerator and denominator by 23:
[tex]\frac{78/23}{23/23} \\ =\frac{3.39130434783...}{1}[/tex]
And of course, if there's a need to round, go ahead.
And please do not waste water!
can someone help me with this please ? D: 7th grade math
Answers
Answer:
2
Step-by-step explanation:
-6*-9=54
-9/-3=3 and 3 cubed=27
54/27=2
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
(-9/-3)=3
3^3=9
-6*-9=54
(a negative times a negative is a positive)
54/9
6!!!
hope this helps! have a great day!!!
Which statement about the graph is true?
1 ,The graph shows a proportional relationship because it is a line, and the difference between each point is the same.
2, The graph shows a proportional relationship because it is a line, and each x-value is a multiple of 2.
3 , The graph does not show a proportional relationship because each point written as a ratio gives a different value.
4, The graph does not show a proportional relationship because a line that increases by 1 in the y-value cannot have a constant of proportionality.
Answers
Answer:
4
Step-by-step explanation:
i just know
can some1 make a word problem for this equation
0.5x + 4 ≥ 16
Answers
44? maybe i think it is but not to sure
Answer the following questions.
Answers
Answer:
kenzie can only buy 2 sets of scrunchies unless she can buy half then it would be 2.5.
Step-by-step explanation:
20 scrunchies = $3.00 meaning= $3.00+$3.00 = 6 dollars. Anymore would be over the limit of money she would be able to use for the scrunchies.
Multiplying Integers with Integer Tiles –5(–2) =
Answers
Answer:
-5 x -2 = 10
Step-by-step explanation:
- x - = +
5 x 2 = 10
Plz answer this
What is the sum of all positive integer solutions less than or equal to $20$ to the congruence $13(3x-2)\equiv 26\pmod 8$?
Sorry about LaTeX
Answers
1
pls mark me as BRAINLIEST
Answer:
36
Step-by-step explanation:
AoPs Is FuN. You were doing the right thing just finish solving if u need explanation comment
A picture shows a roof of a house. It has a right triangle-shaped with the base of 12 feet as span and height of 4 feet as height of roof. The hypotenuse of the triangle is the slope of the roof.
The pitch of the roof is
Answers
Answer:
Step-by-step explanation:
Pythagorean Theorem:[tex]a^{2} + b^{2} = c^{2}[/tex]
[tex]12^{2} + 4^{2} = c^{2}[/tex]
144 + 16 = [tex]c^{2}[/tex]
160 = [tex]c^{2}[/tex]
Square root 160
12.6491106 = c
Round to the nearest whole number
13=c
You have a meal at a restaurant. The sales tax is 8%. You leave a tip for the waitress that is 20% of the pretax price. You spend a total of $23.04. What is the pretax price of the meal?
The pretax price of the meal is $_______
Answers
Answer:
$18
Step-by-step explanation:
I multiply the tax by the pretax price of the meal, and I get 8% * xI multiply the tip by the pretax price of the meal, and I get 20% * xI make an equation, and make sure to add the original x2/25x + 1/5x + x=23.0432/25x=23.04x=18Therefore, the pretax price of the meal is $18(Please answer this Plz nothing not essential) What is the sum of all positive integer solutions less than or equal to $20$ to the congruence $13(3x-2)\equiv 26\pmod 8$?
Answers
Answer:
$13(3x-2)\26\ $8 is less than twenty dollars.
Step-by-step explanation:
Just trust me I don't know how to explain I just do it.
Fiona is taking some time to balance her check register at the end of the month. Use the check register to answer questions for 6 and 7. Based on the transactions, what was the balance in Fiona’s account after she deposited her birthday gift on 6/4?
$780
$690
$340
$430
Answers
Is the corrects answer
Hope this helps
Since the sanctuary was established, the estimated population of American robins in the area has increased from 86 to 102.
Describe the percent change in the estimated population of American robins. Round to the nearest whole percent.
Enter your answer in the box to complete the sentence.
Answers
Answer:
15.7%
Step-by-step explanation:
102-86=16
(16*100)/102
6 3/7 minus 1 3/6 equals _?
Answers
Hope this helps.
Answer:
umm
Step-by-step explanation:
Find the units digit of the following within the indicated number base: $(14_8)^2$
(I will say brainliest whoever gets correct first.)
Answers
If Mia can run 15 laps in 24 minutes, how many minutes will it take her to run 20 laps
Answers
Answer:
15=24
20=x
cross multiply
15x=24*20
15x=480
divide both sides by 15
x=480/15
x=32
it will take her 32 minutes
Answer:
32 minutes
Step-by-step explanation:
24/15 = 1.6 laps per minute
1.6 * 20 = 32 minutes
please help me I need help this is due today.
Answers
Step-by-step explanation:
the equation is y=mx + b. the m (or the thing that comes before the x in the equation) is your slope, the y intercept is the last number. if the last number is preceded by a minus sign, the intercept number is negative
Answer:
For example, number 1's slope is 5/3. On a graph, you would go up 5 (not in block, but in numerical value) and right 3. The y-intercept is -2. This is where your line starts on the graph.
Step-by-step explanation:
y=mx+b b= y-intercept y-intercept=where the line crosses the y-axis m=slope slope== rise/run or slope formula, m=y2-y1/x2-x1
In a city, there are 16 swimming pools. On weekends, 6 of the pools are open.
George says the ratio of pools open on weekends to the total number of pools is 6:16.
Emma says the ratio of pools open on weekends to the total number of pools is 6:11.
Which student is correct? Explain.
Answers
Answer:George
Step-by-step explanation: George is correct because Emma said that the total number of pools in the city is 11 even though it says there are 16 pools in the city, but she got the number of how many are open, George is right because it says what is the ratio of pools open on the weekends to the total amount of pools, and it says there are 6 pools open on the weekend and there are 16 pools in the city in total so he would do 6:16.
George is correct they said that the ratio of pools open on weekends to the total number of pools is 6:16.
What are ratios and proportions?A ratio is an ordered pair of numbers a and b, denoted by the symbol a / b, where b does not equal zero. A proportion is an equation that sets two ratios equal to each other. For example, if there is one boy and three girls, the ratio could be written as 1: 3. (for every one boy there are 3 girls) One-quarter are boys and three-quarters are girls.
Given that In a city, there are 16 swimming pools. On weekends, 6 of the pools are open.
George says the ratio of pools open on weekends to the total number of pools is 6:16.
Emma says the ratio of pools open on weekends to the total number of pools is 6:11.
George is right that the ratio of the open pools to the total pools will be 6:16.
To know more about ratios and proportions follow
https://brainly.com/question/2914376
#SPJ2
help me plzzzzzz 5 buck
Answers
Answer:
The unit rate for the first bag is about 2.50 and for the second bag it is about 2.42. The second bag is the better bag because it has a smaller unit rate.
Step-by-step explanation:
Divide the amount of money by the weight of each bag to find the unit rate.
A i do believe
Step-by-step explanation:
1 million to the power of 10
Answers
Step-by-step explanation:
The answer of 1 million to the power of 10
= 1e+60
35 is 20% of what number
Pls show your work with a double number line
Thank you!
Answers
Answer:
X20=35/100 do 35 times 20 which is 700do 700 divided by 100 so the answer is 7
Step-by-step explanation:
What is 110% of 160?
The first person to answer gets Brainliest
Answers
Answer:
176 Basically find whats 10% of 160 and then add that to 160 and there is your answer
the table shows, step-by-step, how to simplify the algebraic expression 3 (x- 5) + 4x. Justify step 4.
A) Multiply
B) Commutative property
C) Combine like terms
D) Associative Property
Answers
Answer: C , combine like terms
Step-by-step explanation:
On the first visit to the veterinarian's office, Cora's kitten weighed 550 grams. On the second visit, the kitten had gained 350 grams. On the third visit, the kitten had gained another 300 grams.
What is the percent increase since the first visit in the kitten’s weight rounded to the nearest percent?
PLSS HELPP
Answers
Answer:
On first visit, weight =550 g
Weight gained on second visit= 350 g
Weight gained on third visit= 300 g
Present weight=550+350+300= 1200
Weight gained=1200-550=650
Percentage of weight increased
-------->650/550 × 100 = 118.18\%
So the kitten gained 118% weigh
Step-by-step explanation:
This is 6th grade work
Answers
Answer:
5(5b-1z)
Step-by-step explanation:
we know that we have 25b and -5z
we will have to multiply 5 with everything that is between the () mark, and still should have the same amount of "b"s and "z"s
(to find the numbers, you will have to divide, in this case by 5
25/5= 5 -> 5b
5/5=1 -> 1z
--> 5(5b-1z) = 25b-5z