Answer:
Required was area, they provided the perimeter
Area = 6sqrt(3) m²
Step-by-step explanation:
Perimeter = 6s
6s = 12
s = 12/6 = 2m
Area = 3sqrt(3)/2 × 2²
Area = 6sqrt(3) m²
sqrt: square root
The paper cup is 9 cm tall and the circular opening has a radius of 2.5 cm.
What is the minimum amount of paper needed to make the paper cup to the nearest whole cm² assuming no overlap in the paper?
Final answer:
The minimum amount of paper needed to make the paper cup to the nearest whole cm² is approximately 283 cm².
Explanation:
To find the minimum amount of paper needed to make the paper cup, we need to calculate the surface area of the cup. The formula for the surface area of a cylinder is:
A = 2πrh + π[tex]r^2[/tex]
Given that the height (h) of the cup is 9 cm and the radius (r) of the circular opening is 2.5 cm, we can plug in the values to calculate the surface area:
A = 2 × 3.14159 × 2.5 × 9 + 3.14159 × [tex]2.5^2[/tex]
Simplifying the equation, we get:
A ≈ 282.74 [tex]cm^2[/tex]
Rounding to the nearest whole , the minimum amount of paper needed is approximately 283 [tex]cm^2.[/tex]
whats is 224 + 253 add and ill mark you brainleist for the fast quick right answer
Answer:
I dont like math no fair
Answer:
477 :)
Step-by-step explanation:
For math definetly reccommened photo math it is a app that only works on apple but will be the greatest help and always has right answer cause it is high quality app but if you have a apple product then it will be free
What is the length of arc S shown below?
The angle in the figure is a central angle in radians.
Answer:
2
Step-by-step explanation:
Arc length = r × theta
Arc length = 5 × 0.4
= 2
In a game, four cards are labeled N, S, E, and W. Two tiles are numbered 1 and 2. Two discs are red and blue. A player randomly selects one card, one tile, and one disc.
Find the probability the player selects a card with S or E, a tile with 2, and a red disc.
Answer:
The probability is 1/8.Step-by-step explanation:
Two find the final probability asked, first we need to find each probability.
Probability of a card with S or E.This probability is defined by the sum of the probability of getting a card with S, and a probability of getting a card with E. Remeber, when the probability involves "or", that means sum.
[tex]P_{S \ or \ E} =\frac{1+1}{4}=\frac{2}{4} =\frac{1}{2}[/tex]
Probability of a tile with 2.There are two tiles only, and one of them is numbered 2. So, its probability is
[tex]P_{2}=\frac{1}{2}[/tex]
Probability of a red disc.There are two discs only. So, the probability of getting a red disc is
[tex]P_{red}=\frac{1}{2}[/tex]
Now, the combined probabilty of all these events can be found by multiplying, because we want to now the chances of getting all these results which are independent.
[tex]P_{total}=\frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} =\frac{1}{8}[/tex]
Therefore, the probability is 1/8.
Flying saucers pizza charges $0.15 per square inch for circular pizzas. If a pizza is measured by the diameter, how much will flying saucers pizza charge for a 7 inch, 10 inch and 14 inch pizza?
James spends 45 minutes taking caring of Mr Silva's dog .Then,he spends 25 minutes folding laundry. Next ,he spends 20 minutes cleaning his room.How long does it take James to do all of his chares?
What is 2+2? I cant figure it out I took 4 hours
Answer:
4
Step-by-step explanation:
look at the graph and tell me why it is proportional or nonproportional and why?
IF YOU ANSWER I WILL MARK U BRANLYEST
Answer:
I think it is not proportional because the line is supposed to go thro the middle of each dot, and some of the dots don't have a line thro the middle only on the side or not even on the dot.
Hope this helps!
Step-by-step explanation:
please mark me brainliest...
1. A baseball player hits a baseball into the air with an initial vertical velocity of 72 feet per second from a height of 3 feet. ( h = -16t2 +72t +s )
Answer:
You actually do not ask anything here, so i will find the equation for the height and i will use it to find something useful, like the maximum height of the baseball.
For any object in a vertical motion, the only force acting on it is the gravitational force, so the acceleration of the object will be equal to g.
a(t) = -g
where the minus sign is because the gravitational acceleration pulls down.
For the velocity we can integrate over time, and get:
v(t) = -g*t + v0
Where v0 is the initial velocity, in this case v0 = 72 ft/s
v(t) = -g*t + 72ft/s
with this equation we can find the time in wich the height is maximum, we need to find the time where the velocity is 0.
-g*t + 72 = 0
t = 72/g
for the height we can integrate over time again:
h(t) = (-g/2)*t^2 + 72ft/s*t + h0
where h0 is the initial height, in this case h0 = 3ft
here we can also replace the value of g = 32ft/s^2
h(t) = (-16ft/s^2)*t^2 + 72ft/s*t + 3ft
Now we can evaluate this in the time that we previously find, t = 72/g = 72/32 = 2.25s
h(2.25s) = -16*2.25^2 + 72*2.25 + 3 = 85.08 feet
A gym charges $30 per month plus $4 extra to swim in the pool for an hour. Because a member has just $50 to spend at the gym each month, the member can swim at most 5 hours. Find the inequality
Answer:
[tex]50\geq $30 + $4[/tex]
Step-by-step explanation:
The graph shows the function g(x) for a restricted domain.
On a coordinate plane, a function starts at (negative 4, 0) and then curves through the y-axis at (0, 1.5) and then goes through point (4, 2).
Which is the function g(x) for a restricted domain?
g(x) = Negative RootIndex 3 StartRoot x minus 4 EndRoot; x greater-than-or-equal-to –4
g(x) = Negative RootIndex 3 StartRoot x 4 EndRoot + 4; x greater-than-or-equal-to 0
g(x) = Negative RootIndex 3 StartRoot x + 4 EndRoot; x greater-than-or-equal-to –4
g(x) = Negative RootIndex 3 StartRoot x EndRoot minus 4; x greater-than-or-equal-to 0
Answer:
Option 3
g(x) = Negative RootIndex 3 StartRoot x + 4 EndRoot; x greater-than-or-equal-to –4
Step-by-step explanation:
Since the graph starts at x = -4 and towards the right, domain is x 》-4
g(x) = -(x + 4)^⅓
Because,
0 = -(-4 + 4)^⅓
0 = 0
The function g(x) for the restricted domain is g(x) = -∛(x-4); x ≥ -4.
Explanation:The function g(x) for the restricted domain can be determined by analyzing the given information. The function starts at (-4, 0) and curves through the y-axis at (0, 1.5) before passing through point (4, 2). Based on this, the correct function is g(x) = -∛(x-4); x ≥ -4.
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2x3 to the second power plus 5 to the second power
Answer: 43
Multiply
3×3=9
New Problem: (2)(9)+5²
Multiply
2×9=18
New Problem: 18+5²
Multiply
5×5=25
New Problem: 18+25
Add
18+25=43
Answer:
it would be 43 :)
Step-by-step explanation:
first you have to do 3 squared which is 9 then you multiply it by 2. Then square 5 which is 25 and add 25 +18+ 43
Finding Surface Area
Find the total surface area of the prism. Round to the nearest tenth.
Answer:
672 squared in.
Step-by-step explanation:
first, we're going to find the height of the prism (it's not provided to us)
im using the Pythagorean Therm .
height: 8 in.
(i got lazy)
What is 13/15 as a decimal rounded to the nearest tenth
Answer:
i think it would be rounded to a whole
Step-by-step explanation:
tell me if im wrong
Step-by-step explanation:
Convert
13/15
to a decimal.
0.8
¯
6
Find the number in the tenth place
8
and look one place to the right for the rounding digit
6
. Round up if this number is greater than or equal to
5
and round down if it is less than
5
.
0.9
Tickets numbered 1 to 20 are placed in a hat. Two tickets are drawn out at random, without
replacement. Find the probability that:
a: the first number drawn is even and the second number is odd
b: both of the numbers are prime.
-please help include explanation too, it would be really helpful if u can!-
Answer: 5/19
Step-by-step explanation:
There is a total of 20 tickets numbered from 1 to 20.
10 of the tickets has even number and 10 of the tickets have odd numbers.
probability of drawing a ticket that has even number =10/20 which is equal to 1/2
there are total 19 tickets and 10 odd tickets are available.
Probability of drawing a ticket that has odd number =1019
probability =1/2∗10/19=5/19
Answer:
a. 5/19, b. 14/95
Step-by-step explanation:
a. since the first number drawn has 10/20 chance of being even and it's not put back (you assume that you pull an even #), so the second number pulled has a 10/19 chance of being odd.
10/20*10/19 = 5/19
b. 2, 3, 5, 7, 11, 13, 17, 19 are the prime numbers, so 8/20 for the first pull and then 7/19 for the second pull
8/20*7/19 = 14/95
For his craft project, James bought 1010 10 10 pieces of ribbon that were each 2.1 feet2.1\text{ feet} 2.1 feet 2, point, 1, start text, space, f, e, e, t, end text long. How many total yards of ribbon did James buy?
To find the total yards of ribbon, convert the length of each piece of ribbon from feet to yards and multiply it by the total number of pieces. James bought 707 yards of ribbon.
Explanation:To find the total yards of ribbon, we need to convert the length of each piece of ribbon from feet to yards and then multiply it by the total number of pieces.
Since 1 yard is equal to 3 feet, we can use the conversion factor of 1 yard/3 feet to convert each piece of ribbon from feet to yards.
2.1 feet x (1 yard/3 feet) = 0.7 yards
Now, we can multiply the converted length of each piece of ribbon (0.7 yards) by the total number of pieces (1010) to find the total yards of ribbon:
0.7 yards x 1010 = 707 yards
Therefore, James bought a total of 707 yards of ribbon.
what is x + y = 12 if x = 2y
Answer:
x=8
y =4
Step-by-step explanation:
x + y = 12 if x = 2y
Replace x with 2y in the first equation
2y+y = 12
Combine like terms
3y =12
Divide by 3
3y/3 =12/3
y = 4
Now we can find x
x=2y
x=2(4)
x = 8
You have $73.59 you ear additional money by mowing lawns when you purchase a new pair of shoes for $99.99 and have 23.51 left how much money do you ear mowing lawns
Answer:
50.00$
Step-by-step explanation:
99.99 minus 73.50
Gives you 27.50 so then you add up what you have left so that gives you 50.00$
A company that manufactures toy trains is making a new boxcar. To fit on the track, the smallest dimension of the toy boxcar must be 2 inches. What should be the length and height of the toy if the company wants the toy boxcar to be geometrically similar to an actual boxcar with the dimensions shown?
Answer:
Length = 12 inches, height = 3 inches
Step-by-step explanation:
First, you have to set up a proportion. 2/7, x/42.
Then, you cross multiply and get the setup of 84=7x
Finally, you divide 84 by 7 and get 12.
12 is the length, and there is no other answer that has 12 in the height. You could just do the same proportion to get 3, though.
Answer:
A: length = 12 inches, height = 3 inches.
Step-by-step explanation:
The company wants the boxcar to be geometrically similar to the original boxcar.
The first step to doing this is to create a ratio. They tell us the smallest dimension of the toy boxcar must be 2 inches.
The smallest dimension of the original boxcar is 7 feet. We can use these two numbers to create a ratio. A 7:2 ratio to be exact.
A 7:2 ratio can be represented as 7/2. 7/2 equals 3.5. All you have to do now is divide the dimensions in the original boxcar by
For example, the length of the original boxcar is 42 feet. If we put 42/3.5 into a calculator, you get 12 as your answer. The same thing is true for the height.
The graph of which function has an axis of symmetry at x = 3? Picture A, B, C, or D?
Answer:
The last graph f(x)=x^2-6x-1
Step-by-step explanation:
The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.
The graph shown in picture D with equation f(x) = x²-6x-1 , has axis of symmetry at x = 3.
4 graphs are given in order to identify which of them contains axis of symmetry at x = 3
The axis of symmetry is the center axis of the curves where the curve is equally divided.
For Picture A
The axis of symmetry is x = 1.5 so it is not the correct option.
For picture B
The axis of symmetry is x = 1.3 so it is not the correct option.
For picture C
The axis of symmetry is x = -3. So it is not correct option
For picture D
The axis of symmetry is x = 3. it is the correct option.
The graph shown in picture D with equation f(x) = x²-6x-1 , has axis of symmetry at x = 3.
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A house was bought for £100,000
Its value appreciates by 7.5% each year for the Nirst three years. What was its value at the end of the three years?
Answer:
122500
Step-by-step explanation:
The formula
A=p(1+rt)
A ?
P 100000
R 0.075
T 3 years
A=100,000×(1+0.075×3)
A=122500
Final answer:
The value of the house at the end of three years would be approximately £123,696.47.
Explanation:
To find the value of the house at the end of three years, we need to calculate the appreciation for each year and add it to the original value. Since the value of the house appreciates by 7.5% each year, we can calculate the value after three years using the formula:
New Value = (1 + Rate of Appreciation) * Original Value
Let's calculate:
New Value after first year = (1 + 0.075) * £100,000 = £107,500New Value after second year = (1 + 0.075) * £107,500 = £115,062.50New Value after third year = (1 + 0.075) * £115,062.50 = £123,696.47The value of the house at the end of the three years would be approximately £123,696.47.
find the 11th term for : 64, -32, 16, -8
A . -.625
B. 0.625
C. .03125
D. -.03125
Answer:
0.0625 is what i got
Step-by-step explanation:
64, -32, 16, --8, 4, -2, 1, -.5, .25, -.125, 0.0625
Maria is buying new carpet for her bedroom. Her bedroom is in the shape of a square
and the length of each side is 12 feet. Write and simplify an exponential expression to
find how much carpet she needs.
Answer:
(12 ft)^2 = 144 square feet
Step-by-step explanation:
How does the store sell carpet?
In square feet of carpet, right?
so
If the whole square bedroom needs to be covered with carpet, then the area to cover is A = x * x = 12 feet * 12 feet = 144 square feet
If a correlation coefficient of -0.898 is given for comparing two things, what does this number tell you about the correlation of the two things?
strong positive
strong negative
weak negative
no correlation
Answer: Strong negative
Step-by-step explanation:
Correlation coefficient tells about the strength ( Strong , moderate or weak ) and direction ( positive or negative) of the relationship between two quantities.
Strong correlation: The value of correlation coefficient lies between -1 to -0.5 or 0.5 to 1.Moderate correlation : The value of correlation coefficient lies between -0.5 to -0.3 or 0.3 to 0.5.Weak correlation : The value of correlation coefficient lies between -0.3 to -0.1 or 0.1 to 3.The given correlation coefficient :-0.898
Since, it lies between -1 and -0.5 and has negative sign, it means it indicates a strong negative between the two things.
Hence, the correct answer is "strong negative ".
Explain why a polar curve is not always bounded
Answer:
vvvvvvvvvv
Step-by-step explanation:
there are lots of common polar curves that are bounded therefore a polar curve is not always bounded all the time. a polar curve is required to have an unbounded function (right side of r = f(θ)) to be an unbounded polar.
Answer:
There are lots of common polar curves that are bounded therefore a polar curve is not always bounded all the time. A polar curve is required to have an unbounded function (right side of r = f(θ)) to be an unbounded polar.
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What is the length of side XY as shown on the coordinate plane?
O units
1 units
3 units
4 units
after a long and intense thinking of 2 seconds it's 4 units
On a coordinate plane, a parabola opens up with solid circles along the parabola at (negative 6, 5), (negative 5, 0), (negative 4, negative 3), (negative 3, negative 4), (negative 2, negative 3), (negative 1, 0), (0, 5).
What is the vertex of the parabola in the graph?
(
,
)
Answer:
the answer is (-3,-4)
Step-by-step explanation: -3, -4
The vertex of the parabola is (-3, -4)
what is parabola?A parabola is defined as a set of points in a plane which are equidistant from a straight line or directrix and focus.
Given:
The solid circles along the parabola are:
(-6, 5), (-5, 0), (-4, -3), (-3, -4), (-2, -3), (-1, 0), (0, 5).
As, the minimum point of y occurs at (-3, -4).
So, the x-intercept of the parabola is
x=-5 or x=-1
x+5=0 or x+1=0
(x+5)(x+1)=0
x² + 6x+ 5 =0
Now, vertex of equation at axis of symmetry x= -b/2a
x= -6/2 = -3
and, f(-3)= -3 * (-3) + 6(-3) + 5
f(-3)= -4
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A number cube has faces numbered 1 through 6, and a coin has two sides, "heads" and "tails". The
number cube will be rolled once, and the coin will be flipped once. Find the probability that the
number cube shows a 6 or the coin shows "heads." (Express your answers as fractions in lowest
terms.)
Answer:
The required probability is [tex]\dfrac{1}{12}[/tex].
Step-by-step explanation:
Let A be the event of rolling the number cube.
Let B be the event of tossing the coin.
Total number of possibilities of rolling the number cube and tossing the coin are 12 here.
[tex]\{(1,H),(2,H),(3,H),(4,H),(5,H),(6,H),(1,T),(2,T),(3,T),(4,T),(5,T),(6,T)\}[/tex]
where H means Head on toss of coin and T means Tails on toss of coin.
Formula for probability of an event E is:
[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]
Here, we have to find the probability of event 'E' i.e. getting a 6 on number cube and heads on coin.
Number of favorable cases are 1 and total cases are 12.
[tex]\Rightarrow P(E) = \dfrac{1}{12}[/tex]
Which is the simplified form of the expression?
Please help!
Answer:
A
Step-by-step explanation:
PLEASE HELP ME 30POINTS +BRAINLY
1) If a die is rolled once, determine the probability of rolling a 4: Rolling a 4 is an event with 1 favorable outcome (a roll of 4) and the total number of possible outcomes is 6 (a roll of 1, 2, 3, 4, 5, or 6). Thus, the probability of rolling a 4 is [tex]\frac{1}{6}[/tex].
If a die is rolled once, determine the probability of rolling at least a 4: Rolling at least 4 is an event with 3 favorable outcomes (a roll of 4, 5, or 6) and the total number of possible outcomes is again 6. Thus, the probability of rolling at least a 4 is [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex].
Here are two more examples:If a coin is flipped twice, determine the probability that it will land heads both times:
Favorable outcomes: 1 -- HH
Possible outcomes: 4 -- HH, HT, TH, TT
Thus, the probability that the coin will land heads both times is [tex]\frac{1}{4}[/tex].
If Dan grabs one sock from a drawer containing 3 white socks, 4 blue socks, and 5 yellow socks, what is the probability that he will grab a white sock?
Favorable outcomes: 3 (3 white socks)
Possible outcomes: 12 (3 white socks + 4 blue socks + 5 yellow socks)
Thus, the probability that Dan will grab a white sock is [tex]\frac{3}{12}[/tex] = [tex]\frac{1}{4}[/tex].