How do I complete an exponential growth table which does not give enough information?
Yesterday, Jack drove 44 1/2 miles. He used 1 1/4 gallons of gasoline. What is the unit rate for miles per gallon?
Simplify -(-7y+12) and explain
Use technology to find the p-value for a right-tailed test about a mean with nequals=66 and test statistic t equals 3.624 .
Write a for loop that assigns summedvalue with the sum of all odd values from 1 to usernum. assume usernum is always greater than or equal to 1.
Firstly, define a variable `usernum` and let's use 10 as an example. Then, define another variable `summedvalue` and set it as 0 initially. This variable will hold the sum of all odd numbers up to `usernum`.
Next, we start a for loop. This loop will go through each number in the range from 1 to `usernum` inclusive. That's why in the range function we provide `usernum + 1` as the second parameter.
Now, for every number `i` in this range, we check whether it is odd. A number is odd if it gives a remainder of 1 when divided by 2. In other words, we're checking if `i % 2` is not equal to 0 (`i % 2 != 0`).
If the current number `i` is indeed odd, we add it to `summedvalue` (`summedvalue += i`). Then, the loop goes to the next number and the process repeats itself until we've considered all numbers from 1 to `usernum`.
Finally, when the loop ends, the value of `summedvalue` is the sum of all odd numbers from 1 up to (and including) `usernum`. Return this `summedvalue`.
In the case of `usernum = 10`, the odd numbers between 1 to `usernum` are 1, 3, 5, 7, and 9. When you add them together, you get 25. That's why in this case, the result will be 25.
Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the nearest whole number.)
5,280 feet = 1 mile
40 miles x 5280 = 211200 feet per hour
1 hour = 3600 seconds
211200 / 3600 = 58.67 feet per second
Answer:
The answer is 59 feet per second (B)
Step-by-step explanation:
edge hope ya do well
An integer is 1 less than twice that of another. If their sum is 20, find the integers
Answer:7,13
Step-by-step explanation:
1 3/4 in a decimals
The formula h - 15 = 3.2t gives the height h in inches of a plant t weeks after planting
Answer:
the rate is equal to [tex]3.2\frac{inches}{week}[/tex]
Step-by-step explanation:
we have
[tex]h-15=3.2t[/tex]
where
h is the height of a plant
t is the number of weeks after planting
so
Find the rate at which the plant's height is increasing
we know that
The given formula is a linear equation
The rate is equal to the slope of the linear equation
Isolate the variable h
[tex]h=3.2t+15[/tex]
the slope is equal to [tex]m=3.2\frac{inches}{week}[/tex]
therefore
the rate is equal to [tex]3.2\frac{inches}{week}[/tex]
The height was 31 inches in (D) Some time between 3 and 7 weeks.
To find out when the height of the plant was 31 inches using the formula given, we start with the equation:
h - 15 = 3.2t
We want to find the value of ( t ) when the height ( h ) is 31 inches. First, substitute ( h ) with 31 in the equation:
31 - 15 = 3.2t
Now, simplify the left side:
16 = 3.2t
Next, divide both sides by 3.2 to isolate ( t ):
t = [tex]\frac{16}{3.2}[/tex]
Calculating this gives:
t = 5
Therefore, the height of 31 inches was reached at 5 weeks.
So, the answer is: D. Some time between 3 and 7 weeks.
The full question is:
The formula h - 15 = 3.2t gives the height h in inches of a plant t weeks after planting
When was the height 31 inches?
A. Some time between 11 and 18 weeks
B. Some time between 7 and 12 weeks
C. Some time between 6 and 10 weeks
D. Some time between 3 and 7 weeks
What is 1/5 + 2/3 plz answer this
Three consecutive vertices of a parallelogram are points (2, 4), (0, 0), and (6, 0). The fourth vertex is point
1.)(2, -1)
2.)(10, 2)
3.)(8, 4)
Answer:
Option 3 - (8,4)
Step-by-step explanation:
Given : Three consecutive vertices of a parallelogram are points (2, 4), (0, 0), and (6, 0).
To find : The fourth vertex is point ?
Solution :
We have given that points are forming a parallelogram.
Let the fourth coordinate is (x,y)
Now, we draw a rough image of the given situation.
Refer the attached figure below.
Draw a parallelogram ABCD with mid point O.
Applying the mid point between two points (2,4) and (6,0).
[tex]O=\frac{2+6}{2}, \frac{4+0}{2}\\\\ O=4,2[/tex]
Now, Applying mid point between points (0,0) and (x,y)
[tex](4,2)=\frac{x+0}{2}, \frac{y+0}{2}[/tex]
[tex]\frac{x+0}{2}=4, \frac{y+0}{2}=2[/tex]
[tex]x=8 ,y=4[/tex]
Therefore, The fourth vertex point is (8,4).
Hence, Option 3 is correct.
The ____ property allows you to regroup terms using parentheses when adding or multiplying, without changing the answer.
Answer:
The Answer is Associative
Step-by-step explanation:
DONT PUT PROPERTY YOU WILL GET IT WRONG...
1.all real numbers that are less than -3 or greater than or equal to 5
A.x < -3 or x≥5
B.x < 5 or x ≥-3
C.x ≤ -3 or x >5
D.x ≤-3 or x ≤ 5
2.The time a cake must bake is between 25 minutes and 30 minutes, inclusive.
A.25 < x < 30
B.25 ≤ x ≤ 30
C.25 ≤x ≥ 30
D.25 < x > 30
3. Solve. 5 < x -2 <11
A.5 < x < 11
B.7 < x < 13
C.7 < x < 11
D.5 < x < 16
4. Which graph shows the solution of 9 - c < 2 or -3c > 15?
1 is a
2 is b
3 is b
hope it helped
I got the question wrong :(
Suppose w=xy+yzw=xy+yz, where x=e2t, y=2+sin(4t)x=e2t, y=2+sin(4t), and z=2+cos(5t)z=2+cos(5t).
a. use the chain rule to find dwdtdwdt as a function of x, y, z, and t. do not rewrite x, y, and z in terms of t, and do not rewrite e2te2t as x.
To find dw/dt for w = xy + yzw, we use the chain rule, yielding dw/dt = y(dx/dt) + x(dy/dt) + z(dz/dt) + y(dy/dt) + z(dy/dt). The derivatives dx/dt, dy/dt, dz/dt are calculated using derivative rules. The question-specific parameters are then substituted back into these functions.
Explanation:Let's denote w as a function of x, y, and z, where x, y, and z are functions of t. We will use the chain rule to find dw/dt as a function of x, y, z, and t.
Given the function: w = xy + yzw, using the chain rule, we get the derivative dw/dt as:
dw/dt = x * dy/dt + y * dx/dt + y * dz/dt + z*dy/dt + z * dy/dt = y(dx/dt) + x(dy/dt) + z(dz/dt) + y(dy/dt) + z(dy/dt)
To particularize this expression for our given parameter values, we need to find dx/dt, dy/dt, and dz/dt. Each derivative can be calculated using the derivative rules. In this case we are to leave the equations x=e^2t, y=2+sin(4t), z=2+cos(5t) as they are, not rewriting them in terms of t, and also not rewriting e^2t as x. This results in dw/dt as a function of x, y, z, and t.
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How do you find the corresponding ordered pair of f(23)=2?
A kite on a 160-foot string is caught on a pole. When the full length of the string is stretched in a straight line to the ground, it touches the ground a distance of 50 feet from the bottom of the pole. The string forms an angle of _______° with the ground when it is stretched like this.
Answer:
String form an angle of 18.2° with the ground.
Step-by-step explanation:
Given: Length of the string of a kite = 160 ft.
Kite stuck on pole at height of = 50 ft.
We need to find: Measure of angle formed by string of kite with ground.
Attached figure showing the given situation.
let α be the required angle.
In ΔABC,
using trigonometric ratio,
[tex]sin\,\aplha=\frac{AB}{AC}[/tex]
[tex]sin\,\aplha=\frac{50}{160}[/tex]
[tex]sin\,\aplha=\frac{5}{16}[/tex]
[tex]sin\,\aplha=0.3125[/tex]
[tex]\aplha=sin^{-1}(0.3125)[/tex]
[tex]\alpha=18.20995686428301[/tex]
[tex]\alpha=18.21[/tex]
Therefore, String form an angle of 18.2° with the ground.
Find the exact volume of a waffle ice cream cone with a 15 -in. diameter and a height of 19 inches.
Eric estimated 28*48 by finding 30*50. He estimated the product to be 1,500. Eric thinks the actual product wil be greather. Is eric correct. Explain.
1.5 4.5 13.5 40.5.... what is the seventh term in the sequence?
The seventh term in the sequence is 1093.5.
What is Sequence?A sequence in mathematics is a ordered set od objects or numbers which are related with something.
For example, 1, 3, 5, ..... is a sequence of odd numbers.
Given sequence is,
1.5, 4.5, 13.5, 40.5....
There must be a predictable relation between the numbers in order for them to form in a sequence.
It is clear that,
First term = 1.5
Second term = 3 × 1.5
Third term = 3 × 3 × 1.5 = 1.5 (3)²
............
nth term = 1.5 (3)ⁿ⁻¹
seventh term = 1.5 (3)⁷⁻¹ = 1.5 (3)⁶ = 1093.5
Hence the seventh term is 1093.5.
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Pizza planet is running a special: 3 pizzas for $16.50. What is the unit rate for one pizza?
Answer:
$5.5
Step-by-step explanation:
16.5 ÷ 3= 5.5
F(x)=5(3-x)^2 What is f(-4)
The average polar bear weighs 1,200 pounds. The average grizzly bear weighs 800 pounds. The average black bear weighs 400 pounds. The average polar bear weighs how many times more than the average black bear?
The average polar bear weighs is 800 times more than the average black bear.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
We have given that the average polar bear weighs 1,200 pounds.
Average grizzly bear weighs is 800 pounds.
The average black bear weighs is 400 pounds.
To find the average polar bear weighs of x times more than the average black bear.
We need to subtract ;
1,200 - 400 = 800
That is 800
Hence, The average polar bear weighs is 800 times more than the average black bear.
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Please help me Estimate 476-269
Suppose 4-year-olds in a certain country average 3 hours a day unsupervised and that most of the unsupervised children live in rural areas, considered safe. Suppose that the standard deviation is 1.8 hours and the amount of time spent alone is normally distributed. We randomly survey one 4-year-old living in a rural area. We are interested in the amount of time the child spends alone per day. What percent of the children spend over 10 hours per day unsupervised?
A Z-score helps us to understand how far is the data from the mean. The percentage of children who spend over 10 hours per day unsupervised is 0.005%.
What is Z-score?A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,
[tex]Z = \dfrac{X- \mu}{\sigma}[/tex]
Where Z is the Z-score,
X is the data point,
μ is the mean and σ is the standard variable.
Given that the average time that is unsupervised is 3 hours and the standard deviation is 1.8 hours. The percentage of children who spend over 10 hours per day unsupervised is,
P(X>10) = 1 - P(X<10)
[tex]= 1 - P(Z < \dfrac{10-3}{1.8})[/tex]
= 1 - P(Z< 3.889)
= 1 - 0.99995
= 0.00005
Hence, The percentage of children who spend over 10 hours per day unsupervised is 0.005%.
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Less than 0.01% of rural 4-year-olds spend over 10 hours unsupervised per day based on mean, standard deviation, and normal distribution.
To find the percentage of children spending over 10 hours per day unsupervised, we can use the z-score formula to standardize the value and then find the area under the normal distribution curve.
The formula for the z-score is:
[tex]\[ z = \frac{x - \mu}{\sigma} \][/tex]
Where:
[tex]- \( x \) is the value we're interested in (10 hours per day)\\- \( \mu \) is the mean (3 hours per day)\\- \( \sigma \) is the standard deviation (1.8 hours)[/tex]
Let's calculate the z-score:
[tex]\[ z = \frac{10 - 3}{1.8} = \frac{7}{1.8} \approx 3.89 \][/tex]
Now, we'll find the area to the right of this z-score in the standard normal distribution table (or using a calculator). This represents the percentage of children spending over 10 hours per day unsupervised.
From the standard normal distribution table or calculator, a z-score of 3.89 corresponds to approximately 0.9999.
This means that approximately 99.99% of the children spend less than 10 hours per day unsupervised.
However, if you're looking for the percentage of children spending over 10 hours per day unsupervised, you'd subtract this from 100%:
100% - 99.99% =approx 0.01%
So, only about 0.01% of the children spend over 10 hours per day unsupervised.
Ava's heart rate is 65 beats per minute. If this is her average heart rate, how many times will her heart beat in 10 years.
Answer:
Ava's heart will beat for 341640000 beats in 10 years.
Step-by-step explanation:
Heart rate of Ava is = 65 beats per minute
We have to calculate the heart beat in 10 years.
Since Ava's heart beats in 1 minute = 65 times
Heart beat in 1 hour = 65 × 60
= 3900 beats
Heart beats in 24 hours or one day = 3900 × 24
= 93600 beats
Heart beats in 365 days or 1 year = 93600 × 365
= 34164000 beats
Heart beats in 10 years = 34164000×10
= 341640000 beats
Therefore, Ava's heart will beat for 341640000 beats in 10 years.
Find the average rate of exchange for the function. x=-6 and x=0
[tex]f(x)= \frac{1}{x-1} [/tex]
what is m<4? I tryed to do the work but I just can't get it can someone help me plz
A survey of 240 families showed that.. 91 had a dog 70 had a cat 31 had a dog and a cat 91 had neither a cat nor a dog nor a parakeet 7 had a cat and a dog and a parakeet how many had a parakeet
There were 30 families that had a parakeet.
By using the concept of Sets :
- Total number of families surveyed (denoted as N) = 240.
- Number of families with dogs (denoted as D) = 91.
- Number of families with cats (denoted as C) = 70.
- Number of families with both dogs and cats (denoted as D ∩ C) = 31.
- Number of families with neither cats nor dogs nor parakeets (denoted as neither) = 91.
- Number of families with cats, dogs, and parakeets
(denoted as D ∩ C ∩ P) = 7.
We want to find the number of families that had parakeets
(denoted as P).
To find the number of families with parakeets, we can use the principle of inclusion-exclusion. It states that:
N(D ∪ C ∪ P) :
= N(D) + N(C) + N(P) - N(D ∩ C) - N(C ∩ P) - N(D ∩ P) + N(D ∩ C ∩ P).
Substitute the given values:
240 = 91 + 70 + P - 31 - N(C ∩ P) - N(D ∩ P) + 7.
Now, we can calculate the number of families with both cats and parakeets (C ∩ P) and the number of families with both dogs and parakeets (D ∩ P):
C ∩ P + D ∩ P = (C + D + P) - (N(D) + N(C) + N(P)) = 240 - 91 - 70 - P = 79 - P.
From the given information, we also know that the number of families with neither cats nor dogs nor parakeets is 91. Therefore, we can write:
neither + N(D ∩ P) + N(C ∩ P) + N(D ∩ C ∩ P) = 91.
Substitute the values:
91 + N(D ∩ P) + C ∩ P + 7 = 91.
Now, we can solve for C ∩ P:
C ∩ P = 91 - N(D ∩ P) - 7.
Substitute the value of C ∩ P we found earlier:
79 - P = 91 - N(D ∩ P) - 7.
Now, we can find N(D ∩ P):
N(D ∩ P) = 79 - P - 91 + 7 = -P - 5.
However, we know that the number of families cannot be negative. So, we ignore this solution. Instead, we use the previously calculated value of C ∩ P:
C ∩ P = 91 - N(D ∩ P) - 7.
91 - (79 - P) - 7 = 91 - 79 + P - 7 = P - 7.
P - 7 = 30.
Finally, we get the value of P:
P = 30.
Therefore, there were 30 families that had a parakeet.
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I'm not quite sure where to start, help and answers would be appreciated !:)