Which expression represents 81? 1. 3^3 2. 3^4 3. 3^5 4. 3^6
Answers
Answer:
2. 3^4
Step-by-step explanation:
3 x 3 x 3 x 3 = 81
Or you can do it an easier way by
3 x 3 = 9
3 x 3 = 9
Then you would multiply 9 x 9 which gives you the answer of 81.
I am sorry if you get this wrong.
Related Questions
This velocity-time graph shows 8 seconds of a car journey.
What was the total distance travelled by the car during this time?
If your answer is a decimal, give it to 1 d.p.
Velocity (m/s)
20
15
10
5
0
Time(s)
Answers
The distance covered by the car in 8 seconds of the journey is 100 meters.
What is the distance?The complete movement of an object, regardless of direction, is referred to as distance. The amount of ground a thing travels from its starting point to its destination is also referred to as distance.
Given:
Velocity (m/s) = 20, 15, 10, 5, 0
Calculate the distance as shown below,
\(Distance = velocity \times time\)
Distance = 0 × 20 + 15 × 2 + 10 × 4 + 5 × 6 + 0 × 8
Distance = 0 + 30 + 40 + 30 + 0
Distance = 100 meter
Thus, the distance covered by the car is 100 meters.
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South High School began the school
year with 1125 students. They have
lost 4% of their student body due
to attrition.
How many students has South
High School lost to attrition?
Answers
Answer:
45
Step-by-step explanation:
1125 students×.04 attrition =45 students lost
9x-2+52=180
it is to hard
Answers
9x-2+52=180
That's the answer
Answer:
14.44444444444444444444444444444444444
Step-by-step explanation:
9x - 2 + 52 = 180
simplify
9x +50 = 180
9x = 130
14.4444444444
What’s this answer plzz
Answers
Answer:
y=1/2x+7
Step-by-step explanation:
No work needed
-3x is less than or equal to 3, the solution of the inequality is?
Answers
Answer:
you dont really want the smoke
Step-by-step explanation:
What is 67% as a fraction
Answers
Answer:
67/100
Step-by-step explanation:
6-4x=6x-8x+2cual es el resultado de esta ecuación?
Answers
Solve with terms in x at left, and numerical terms at right
-4x -6x -(-8x) = 2 -6
-10x + 8x =-4
-2x = -4
x= 2
For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
8
9
Answers
An elementary school wants to purchase a new swing set. The table shows the selling price of the swing sets they are interested in buying
Swing Set
Wholesale Price ($)
Adventurers
3,056
Thunder Ridge
4,125
The markup for both swing sets is 20%. The school decides to buy the Adventurers swing set. What is the selling price of the swing set they
are buying? Round to the nearest cent if necessary,
Answers
Answer: The answer is 3674.84
The selling price of Adventurers swing set is $3,667
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100.
Example:
50% = 50/100 = 1/2
We have,
Adventurers swing set wholesale selling price = $3056
Markup means the amount increased.
20% Mark up on the price:
= 20% of 3056
= 20/100 x 3056
= $611.2
The selling price of Adventurers swing set:
= $3056 + $611.2
= $3,667.2
Rounding to the nearest cent:
= $3,667
Thus the selling price of Adventurers swing set is $3,667
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A garden is to designed with a rectangular part in the middle with two semi-circles on the ends.
The dimensions of the rectangular portion are 18.4 feet long and 8.6 feet wide.
a) What is the area of one semi-circle at one end?
b) What is the area of the garden?
c) Find the area in square metres.
Answers
Given statement solution is :- a) The area of one semi-circle at one end is 58.09 square feet.
b) The area of the garden is 274.42 square feet.
c) The area in square metres is approximately 58.09 square feet.
The area of the garden is approximately 274.42 square feet, and the area in square meters is approximately 25.49 square meters.
a) To find the area of one semi-circle at one end, we need to calculate the area of a complete circle and then divide it by 2. The formula for the area of a circle is A = πr², where A represents the area and r is the radius.
Since the diameter of the semi-circle is equal to the width of the rectangular portion, which is 8.6 feet, the radius will be half of that, which is 8.6 / 2 = 4.3 feet.
Now we can calculate the area of the semi-circle:
A = (π * 4.3²) / 2
A ≈ 58.09 square feet
b) To find the area of the garden, we need to sum the area of the rectangular portion with the areas of the two semi-circles.
Area of the rectangular portion = length * width
Area of the rectangular portion = 18.4 feet * 8.6 feet
Area of the rectangular portion ≈ 158.24 square feet
Area of the two semi-circles = 2 * (area of one semi-circle)
Area of the two semi-circles ≈ 2 * 58.09 square feet
Area of the two semi-circles ≈ 116.18 square feet
Total area of the garden = area of the rectangular portion + area of the two semi-circles
Total area of the garden ≈ 158.24 square feet + 116.18 square feet
Total area of the garden ≈ 274.42 square feet
c) To convert the area from square feet to square meters, we need to know the conversion factor. Since 1 foot is approximately 0.3048 meters, we can use this conversion factor to convert the area.
Area in square meters = Total area of the garden * (0.3048)²
Area in square meters ≈ 274.42 square feet * 0.3048²
Area in square meters ≈ 25.49 square meters
Therefore, the area of one semi-circle at one end is approximately 58.09 square feet. The area of the garden is approximately 274.42 square feet, and the area in square meters is approximately 25.49 square meters.
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Fiona had 3 kg of spinach.1/2 kg of spinach was sold to Mrs Simon and the rest were packed equally into 3 bags. Find the mass of each bag of spinach.
Answers
Answer:
Each bag of spinach weighs 0.833 kg or approximately 833 grams
Step-by-step explanation:
Fiona had 3 kg of spinach. She sold 1/2 kg of spinach to Mrs. Simon, which leaves her with:
3 kg - 1/2 kg = 2.5 kg
Fiona packed the remaining 2.5 kg of spinach equally into 3 bags. To find the mass of each bag of spinach, we can divide the total amount of spinach by the number of bags:
2.5 kg ÷ 3 = 0.833 kg
therefore, Each bag of spinach weighs 0.833 kg or approximately 833 grams
plssssss someone help pls pls pls i dont get this look
Suppose you know that ∠S and ∠Y are complementary, and that m∠S = 4(m∠Y) − 160°. Find m∠Y
Answers
Answer:
I think the answer is 50.
Step-by-step explanation:
Y + S = 90
S = 4 (Y) - 160
160 = 4 (Y)
Y = 40
90 - 40 = 50
Hope it's correct and helps!
Brayden and Aubrey are both driving along the same highway in two different cars to a stadium in a distant city. At noon, Brayden is 280 miles away from the stadium and Aubrey is 340 miles away from the stadium. Brayden is driving along the highway at a speed of 30 miles per hour and Aubrey is driving at speed of 40 miles per hour. Let
B
B represent Brayden's distance, in miles, away from the stadium
t
t hours after noon. Let
A
A represent Aubrey's distance, in miles, away from the stadium
t
t hours after noon. Graph each function and determine the number hours after noon,
t
,
t, when Brayden and Aubrey are the same distance from the stadium.
Answers
Answer:
B(t) = -30t + 280
A(t) = -40t + 340
(Screenshot of graph is attached below)
They will be the same distance away from the stadium after 6 hours.
Step-by-step explanation:
13. A car travels at a speed of 55 km/h. Find the distance travelled by the car in 12minutes 30 seconds, giving your answer in meters.
Answers
Answer:
11.46 meters
Step-by-step explanation:
12min 30sec = 12.5min
55km/h * 12.5min * 1h/60min = 11.4583333333meters
The question is the last part says RUQ
Answers
Answer:
find the angle of the borg
Step-by-step explanation:
Answer:
cant see all of the question LOL
Step-by-step explanation:
Select the correct answer from each drop-down menu. Consider this system of equations: (equation A) (equation B) The solution for the system of equations is .
Answers
The solution for the system of equations is: (99/13, 150/13)
Given the two expression 2/3x+3/5y=12 and 5/2y-3x=6
We have to find solution of two given expression.
To find the value of x, we have to eliminate y by making y the subject of formula in any of the equations.
Multiply equation A by 5/3 t.o get,
5/3(2/3x) + 5/3(3/5y) = 5/3(12)
10/9x + y = 20
y = 20 - 10/9x
substituting for y into equation b, we have:
5/2(20 - 10/9x) - 3x = 6
50 - 25/9x - 3x = 6
52/9x = 44
52x = 396
The expression that gives the value of x is: 52x = 396
Hence, x = 396/52 = 99/13
y = 20 - 10/9(99/13) = 20 - 110/13 = 150/13
Hence The solution for the system of equations is: (99/13, 150/13)
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f(t)= x2 + 2; Find f(-6)
Answers
Answer:
-12
Step-by-step explanation:
F(T)=2(1×+1)
2(1×+1)= x2 + 2, and since we were trying to find what f is, we know know f=2 because of the equation 2(1×+1), so, 2(-6)= -12
Which inequality represents the graph? x ≥ (y + 3)2 + 1 x ≤ (y + 3)2 + 1 x ≥ (y – 3)2 + 1 x ≤ (y – 3)2 + 1
Answers
The graph of each of the inequalities are created using a graphing tool as follows;
Graph 1; x ≥ (y + 3)² + 1
The domain = 1 ≤ x ≤ ∞
The range = -∞ < y < ∞
Graph 2; x ≤ (y + 3)² + 1
The domain = -∞ ≤ x ≤ ∞
The range = -∞ < y < ∞
Graph 3; x ≥ (y - 3)² + 1
The domain = 1 ≤ x ≤ ∞
The range = -∞ < y < ∞
Graph 4; x ≤ (y - 3)² + 1
The domain = -∞ ≤ x ≤ ∞
The range = -∞ < y < ∞
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Answer:
c or x ≥ (y-3)^2+1
Step-by-step explanation:
The following graph describes function 1, and the equation below it describes function 2. Determine which function has a greater maximum value, and provide the ordered pair. (1 point)
Function 1
(look at the graph below)
Function 2
f(x) = −x2 + 2x − 15
Function 1 has the larger maximum at (4, 1).
Function 1 has the larger maximum at (1, 4).
Function 2 has the larger maximum at (−14, 1).
Function 2 has the larger maximum at (1, −14).
Answers
A function that has a greater maximum include the following: A. Function 1 has a larger maximum at (4, 1).
How to determine the function that has a larger maximum?In order to determine the maximum value of function 2, we would have to take the first derivative with respect to x and then, substitute this x-value into the original function while equating it to zero (0), and then evaluate as follows;
f(x) = −x² + 2x - 15
f(x) = −2x + 2
0 = −2x + 2
2x = 2
x = 2/2
x = 1
For the maximum value of function 2, we have:
f(1) = −(1)² + 2(1) - 15
f(1) = -14
For the maximum value of function 1, we can logically deduce that it is equal to 1 based on the graph in image attached above.
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Which statement best describes the effect on an image when it is reflected over the x-axis?
A The image will reflect left or right, and the x-value will become Its opposite.
B The Image will reflect left or right, and the y-value will become Its opposite.
C The image will reflect up or down, and the x-value will become its opposite.
D The image will reflect up or down, and the y-value will become its opposite.
#6
A
Answers
Answer:
D. The image will reflect up or down, and the y-value will become it's opposite
15 A 45om long field is drawn a scale Icm to 9om Find the length of the dam drawing.
Answers
Answer:
The scale of the drawing is 1 cm to 90 m. This means that every 1 cm on the drawing represents 90 m in real life. The length of the field is 450 m, so the length of the drawing will be 450 m / 90 m = 5 cm.
Therefore, the length of the dam drawing is 5 cm.
Step-by-step explanation:
How many ways can Nick choose 5 pizza toppings from a menu of 8 toppings if each topping can only be chosen once?
Answers
In combination, 56 ways can Nick choose topping can only be chosen .
What is permutation and combination?
Subsets of a set can be created in two separate ways: combination and permutation. The subset's components can be listed in any order when combined. The components of the subset are listed in a permutation in a certain order.Examples of permutations include arranging persons, digits, numbers, alphabets, letters, and colors. Examples of combinations include choosing the menu, the cuisine, the clothes, the subjects, and the team.given that Nick choose pizza = 5
menu of toppings if each topping =8
chosen once = 8c5
=> 8! / (5!(8−5)!)
=> 56
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This means we increase the x value by 1.
Where would point A buf
it were moved right 1x
and up 2X?
10
9
8
This means we increase the y value by 2.
7
a) (2,5)
6
5
b) (2,4)
A(1.9
4
-c) (2,6)
3
2
.
2.
1
0 1 2 3 4 5 6 7 8 9 10
х
Answers
Answer:
The answer is option C, that is, (2,6)
lementary matrices of type iii: to replace row of the identity matrix by the sum of row plus times row , (equivalent to performing the row operation , set e
Answers
The inverse is not always true, but shear stresses are typically zero on the plane that corresponds to the highest normal stress.
No, it isn't usually. In some cases of loading, it can be zero. For instance, if you apply equal stresses to a stress element by tensioning it in the x direction and compressing it in the y direction (sigma x=sigma y), you would obtain a stress element that, when rotated by 45 degrees, produces the maximum shear planes with no normal stresses.
That's not usually the case. In most cases, you will experience the maximum shear stress before experiencing the average normal stress. If we take into account the compression and tension natures of the stresses we assumed, then in the case I previously gave, sigma y should be negative because it is compression, and sigma x should be positive because it is tension.
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The full question:
Are the normal stresses zero on the max shear stress plane?
what is the mathmatical property of 7+(5-8)=(7+5)-8 out of Communicative and assoiative propetys and the other 2
Answers
Answer:
This demonstrates the associative property of addition which states that a + (b + c) = (a + b) + c. Basically, it states that it doesn't matter which order you add numbers in, you will always get the same result.
what value of x makes the equation true????
Answers
Answer:
10.4 or 52/5
Step-by-step explanation:
\(\frac{10x-4}{5}=20\\\5(\frac{10x-4}{5})=(20)5\\\10x-4=100\\\10x=104\\\x= 10.4\)
I am trying to perform an A/B test to see if two samples come from the same underlying distribution. My alternative hypothesis is that the samples do not come from the same underlying distribution. The _________ should be chosen as the test statistic. _________ _________ values of this statistic provide evidence in favor of the alternative hypothesis.
a. difference between the groups' averages, large absolute
b. total variation distance, large
c. difference between the groups' averages, large
Answers
the correct option is a. difference between the groups' averages, large absolute
I am trying to perform an A/B test to see if two samples come from the same underlying distribution. My alternative hypothesis is that the samples do not come from the same underlying distribution. The difference between the groups should be chosen as the test statistic averages large absolute values of this statistic provide evidence in favor of the alternative hypothesis.
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Find the greatest common factor of 9c and 11c? HEIM
Answers
Answer:
1
Step-by-step explanation:
Prime Factorization of the numbers-
3 x 3 = 9
11 = 11
GCF(9,11)
=1
Which expression is equivalent to 4/6/3/2
Answers
Answer:
the 3rd one
Step-by-step explanation:
I had this question on edgunity
How do you do this question?
Answers
Step-by-step explanation:
This is a geometric series, where the first term is -5 and the common ratio is -⅔.
aₙ = -5 (-⅔)ⁿ⁻¹