Answer:
Now they have $55 in total left
Step-by-step explanation:
Do you think two students who made no computation errors would get different values for this numerical expression> explain (4x35)+(36x8
Answer:
Yes, they would get different values
Step-by-step explanation:
Given
[tex](4 * 35) + (36 * 8)[/tex]
Required
Would there be different value for the expression?
From the question, we understand that both students made no computational errors. This doesn't mean that the students cannot make other errors.
For instance, the expression can be solved (wrongly) in the following ways;
[tex](4 * 35) + (36 * 8) \to 4 * 35 + 36 * 8 \to 140 + 36 * 8 \to 176 * 8 = 1408[/tex]
[tex](4 * 35) + (36 * 8) \to 4 * 35 + 36 * 8 \to 4 * 71 * 8 \to = 2272[/tex]
While the correct solution is:
[tex](4 * 35) + (36 * 8) \to 140 + 288 =428[/tex]
Hence, it is possible for two students to get different values
find the measure of x in the figure. show your work. answer asap please
Answer:
x=25
Step-by-step explanation:
2x+40=90
90-40=50
50 divided by 2 is 25
x=25
Hiii dont mind the answer that i put but im not sure if im right, can someone please help me?
Answer:
Option 4
Step-by-step explanation:
The volume of a cylinder is going to be the area of the base (which is a circle) times the height. if you have cylindrical mug, then you can use the base area×height relationship, but it won't be exact because some of the volume is going to be used for the walls of the mug itself.
Anyways:
Volume = Base Area × Height
•Base Area -> Circle = π×radius²
•Height is given as 7in.
Volume = π×(6.2in)² × 7in = 845.33975...
Volume is in units cubed (the 3rd power) which is where the in³ is from. Your closest option here looks to be the 4th choice.
Interpret the key features of the graph in the given context, and answer the following questions.
Part A
What is the vertex of the function? How do you interpret it in the given situation?
Part B
What is the x-intercept of the function? How do you interpret it in the given situation?
Part C
What is the y-intercept of the function? How do you interpret it in the given situation?
Part D
What is the domain of the function in the given situation? Explain your answer.
Part E
Calculate the average rate of change over the intervals [0, 20] and [60, 80]. What does the average rate on these intervals tell you about the balloon’s journey?
Answer:
Part A
The vertex of the graph lies at (40,18). This is the maximum value on the graph. This means the balloon reached a maximum altitude of 1,800 meters about 40 minutes after its launch.
Part B
One of the x-intercepts of the function lies somewhere between x = 82 and x = 83. This is this point where the balloon is at zero altitude, or sea level. So, the balloon stays in the air for a little over 82 minutes. There is another x-intercept to the left of the origin. But a negative time value doesn’t make sense. So, we won’t considerate it for this scenario.
Part C
The -y-intercept of the function lies at (0,2). This is the starting point of the balloon’s journey. The point the balloon launched from was 200 meters above sea level.
Part D
We can’t interpret negative time values in this situation. So, the domain of the function is restricted to positive values of x. A negative y-value indicates an altitude below sea level. While some locations have negative altitudes, we can consider only positive values for this scenario. So, we should only consider positive values of y. So the domain of the function is restricted to only those values of x that produce positive values of y. Since we can’t see the x-intercept clearly from the graph, we’ll consider the domain of the function to be [0, 82].
Part E
Average rate of change on [0, 20] = f(20)-f(0) / 20-0
= 14-2 / 20
= 12 / 20
=0.6
Average rate of change on [60, 80] = f(80)-f(60) / 80-60
= 2-14 / 20
= -12 / 20
= -0.6
In this case, the rate of change represents the change in the balloon’s altitude within a time interval. The average rate of change on [0, 20] is positive. This indicates that the balloon is ascending, or climbing, during the first 20 minutes of its journey.
The average rate of change on [60, 80] is negative. This indicates that the balloon is descending between 60 and 80 minutes. Although negative, the rate of change in the second interval has the same absolute value as the rate of change for the first interval. So, during the last 20 minutes the balloon is descending at the same rate it was ascending during the first 20 minutes.
The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1800 hours and a standard deviation of 25 hours. Using the empirical rule, what percentage of light bulbs last between 1725 hours and 1875 hours?
Answer:
99.7%
Step-by-step explanation:
The empirical rule formula states that:
68% of data falls within 1 standard deviation from the mean - that means between μ - σ and μ + σ .
95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .
99.7% of data falls within 3 standard deviations from the mean - between μ - 3σ and μ + 3σ
Step 1
We have to find the number of standard deviations from the mean
μ = Mean = 1800 hours
σ = Standard deviation = 25 hours
For 1725 hours
μ - xσ =
1800 - 25x = 1725
25x = 1800 - 1725
25x = 75
x = 75/25
x = 3
For 1875 hours
1800 + 25x = 1875
25x = 1875 - 180
25x = 75
x = 75/25
x = 3
Step 2
From the above calculation, the bum of standard deviations from the mean is 3
Hence, the percentage of light bulbs last between 1725 hours and 1875 hours is 99.7%
what would be the area of a square if it had the side length of 1/9 cm
Answer:
The answer is 1/81 cm squared
Step-by-step explanation:
1/9*1/9=1/81
If the area of a square is 121 cm^2, what is its side length?
I
Step-by-step explanation:
Area of a square=121 cm^2
l^2=121 cm^2
l=√121cm^2
l=11 cm
Rectangle ABCD, A, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(5, 5), B(7,5), C(7,-1) and D(5,-1). Given these coordinates, what is the length of side BC of this rectangle?
Answer:
I think the answer is 5
BC=5
Step-by-step explanation:
You go to the doctor and he gives you 14 milligrams of radioactive dye. After 16 minutes, 5.25 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a radiation detector without sounding the alarm. If the detector will sound the alarm if more than 2 milligrams of the dye are in your system, how long will your visit to the doctor take, assuming you were given the dye as soon as you arrived
Answer:
31.7 min
Step-by-step explanation:
Given that;
N(t) = Noe^kt
No = amount of radioactive isotope initially present
N(t) = amount of radioactive isotope present at time t
t = time taken
k = decay constant
5.25 = 14e^-k16
5.25/14 = e^-k16
0.375 = e^=k16
ln(0.375) = =-16k
k = ln(0.375)/-16
k = 0.0613 min^-1
So time taken for 2 mg to remain;
2 = 14e^-0.0613t
2/14 = e^-0.0613t
0.1429 = e^-0.0613t
ln(0.1429) = -0.0613t
t = ln(0.1429)/-0.0613
t = 31.7 min
Use trigonometry to determine the m>DEC to the nearest degree
Answer:
m∠DEC = 50° to the nearest degree
Step-by-step explanation:
cos D = adjacent side/hypotenuse
= 36/56
m∠DEC = arccos (36/56) =50° to the nearest degree
George takes a photograph of a rectangular window that is 312 feet tall and 134 feet wide. He prints the photograph on paper so that the image of the window is 12 foot tall and 14 foot wide. What is the ratio of the area of window to the area of the image of the window?
Answer:
A':A = 1742:7
Step-by-step explanation:
Applying,
A' = L'W'............... Equation 1
Where A' = Area of the window, L' = Length of the window, W' = Width of the window.
From the question,
Given: L' = 312 ft, W' = 134 ft
A' = (312×134)
A' = 41808 ft²
Similarly,
A = LW.................. Equation 2
Where A = Area of the image of the window, L and W is thw length and width of the image of the window
Given: L = 12 ft, W = 14 ft
Therefore,
A = 12×14
A = 168 ft²
Therefore the ratio of A' to A = 41808:168 = 1742:7
A':A = 1742:7
Give the Ratio for TAN X
Step-by-step explanation:
tanx = opposite / adjacent
The first three terms of a sequence are given. Round to the nearest
thousandth (if necessary).
309, 303, 297, ...
Find the 33rd term.
Answer:
117
u welcome
Step-by-step explanation:
Terry rents a kayak while he is on vacation. He is required to pay a deposit of $95 plus an additional $11.50 per day. Terry only has $150 to spend on kayaking. Write and solve an inequality you can use to determine the maximum number of days Terry can afford to rent a kayak.
Answer:
A maximum of 4 days
Step-by-step explanation:
Inequality: 95 + 11.50x ≤ 150
Okay so the 95 is his fee. Then for everyday, it's 11.50 and we don't know how many days yet, so 11.50x. The 95 dollars and the 11.50x has to equal to or less than 150 since that is how much he has to spend on vaca.
95 + 11.50x ≤ 150
-95 -95
11.50x ≤ 55
/11.50 /11.50
X=4.78260869565
You would round down since he has a budget.
This data set gives the height (in feet) of 15 rose plants in a garden: 5, 3, 4, 3, 2, 4, 1, 5, 5, 1, 1, 5, 4, 3, 5.
Which dot plot accurately represents this data?
dot plot A
dot plot B
dot plot C
dot plot D
Answer: It’s plot C
That’s because if you count how many fives there are then that’s how many dots same with four there two and one.
The radius of the pizza is 15 cm long.
What is the circumference of the pizza?
Express your answer in terms of pi
Answer:
30π cm
30pi cm
Step-by-step explanation:
c = 2πr
c = 2π(15)
c = 30π
can someone help me!??
Answer:
A: Negative
B: 1) Decreases
2) Increases toward 100
C: The point (1,55) and (5,97) are outliers.
Step-by-step explanation:
Because the grade decreases as the number of abscenses increases, it is called a negative association.
Outliers are the point that stick far out from the rest of the points. Both (1,55) and (5,97) are far away from the rest of the points. And don't follow the general trend of the graph.
Suppose vanilla beans cost $600 per kilogram. Julie bought 9 grams of vanilla beans. Jacques bought 70 grams of vanilla beans.
How much more did Jacques pay for his vanilla beans?
Answer:
The Correct option is 36.60
Step-by-step explanation:
The key to solving this question lies around measurement conversion,specifically converting grams into its equivalence in kilograms.
1000 grams equal one kilogram
9 grams=9/1000 kg
9 grams=0.009 kg
70 grams=70/1000 kg
70 grams=0.07 kg
Julie pays=$600*0.009=$5.4
Jacques pays=$600*0.07=$42
Jacques pays $36.60 more ($42-$5.4) than Julie paid
Option is wrong because that was what Julie paid
Option D is wrong because that was what Jacques paid
Option B is obviously wrong
43, 45, 2, 5, 13, 11
Median -
Q1 -
Q3 -
IQR -
Answer:
Median- 12
Q1- 5
Q3- 43
IQR- 38
Step-by-step explanation:
2, 5, 11, 13, 43, 45
Put your numbers in order of least to greatest
Since there is no given median as the amount of numbers is even, find the number in between the 2 middle numbers, in this case, the number would be 12, as it is in between 11 and 13.
To find Q1 and Q3, you need to find the first and third median, which would be 5 and 43. To find the IQR, you need to subtract Q3 from Q1, which would give you 38 in this equation
Help!!!! I need the answer to this
Answer:
1. 147°
3. 147°
4. 33°
Step-by-step explanation:
hope this helps!
Need help on this question! Maybe be mark brainliest?
Andy is scuba diving. He starts at sea level and descends at a rate of 10 feet in 2 minutes.
Where will he be in relation to sea level after 6 minutes?
thid
Step-by-step explanation:
2) Which of the following tables represents an exponential function?
Please help !!
Answer:
Step-by-step explanation:
im guessing B
Math/Geometry
HELP ASAP PLS GEOMETRY
Answer:ANSWER IS CBD by ?
Step-by-step explanation:
ok so ABC is equal to 180 degreess so /_\ would a right angle which is 90
After Luca took his dogs for a walk, he gave them 6 dog treats. When Luca's dad got home from work, he gave
the dogs t more treats. All together that day, Luca's dogs got 10 dog treats,
Write an equation to describe this situation.
How many dog treats did Luca's dad give the dogs?
Answer:
Step-by-step explanation:am
Luca gave them 6 treats.
His father gave them t (unknown) treats.
All together, they got 10 treats.
This would be the equation:
[tex]6+t=10[/tex]
To solve, subtract 6 from each side.
[tex]6-6+t=10-6\\t=4[/tex]
Therefore, Luca's father gave the dogs 4 treats.
evaluate the following expression for x=-2 -4x+8+2x+3
Answer:
15
Step-by-step explanation:
x = 2
-4x+8+2x+3 = ?
-4 (-2) + 8 + 2 (-2) + 3 =
= 8 + 8 - 4 + 3
= 16 - 4 + 3
= 12 + 3
= 15
hopefully this helped you :)
Select the correct answer.
Which sentence correctly compares temperatures?
Answer: C
Step-by-step explanation:
C is the only statement that is correct
it's all based on negative numbers :)
Women make up 52 percent of the voting-age population and are more likely to vote, yet a. a woman has never been elected to the U.S. Senate. b. men dominate the political arena. c. women dominate the political arena. d. a woman has never been elected governor of a U.S. state. Please select the best answer from the choices provided A B C D
Answer:
b. "men dominate the political arena".
Step-by-step explanation:
Edgeńuity says - B. "men dominate the political arena".
I got a 100% on the test
find the volume of this cylinder
Answer:
25² · 40 π in.³
Step-by-step explanation:
V = πr²h
π · 25² · 40
≈ 78539.81634
Since your question wants it in a different way, you have to know the formula.
V = πr²h
V = r² · h π in³
v = 25² · 40 π in³
Someone help me with this
Answer:
=z ^(-11) + ^(-15)
= z ^ -26
Answer:
z^-11 times z^-15 = z^-26
Step-by-step explanation:
According to exponential properties, multiplying two numbers that have exponents with the same bases should be added.
Negative exponents mean to go from a^-x to 1/a^x.
Using these properties, we evaluate the expression.
Both terms have the same base, z, so we can go ahead and add the exponents.
-11 + -15 = -26
z^-11 * z^-15 = z^-26
Because the instructions specifically say to leave it in z^n form, our answer is z^-26.
Hope this helped!!