Answer:
do you need the answer?
Step-by-step explanation:
?
Find the area of a circle with radius equal to 2/π
9514 1404 393
Answer:
4/π
Step-by-step explanation:
Use the given radius in the formula for the area of a circle.
A = πr²
A = π(2/π)² = 4π/π²
A = 4/π . . . . square units
Weekly wages at a certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$250 and $300.
a helicopter is bought for 5 million.its value depreciated by 7%each year .how many years wil it take for value to halve
Answer:
Number of year = 9.5 year
Step-by-step explanation:
Given:
Initial value[Cost price] = $5,000,000
Depreciation rate[r] = 7% = 0.07
Final value[After depreciation cost] = 5,000,000 / 2 = $2,500,000
Find:
Number of year[After half value]
Computation:
A = p[1-R]ⁿ
Final value = Initial value[1-r]ⁿ
2,500,000 = 5,000,000[1-0.07]ⁿ
0.5 = [0.93]ⁿ
Number of year = 9.5 year
What’s the answer for 18 and 19?
Answer:
18. 3,0 19. 0,5
Step-by-step explanation:
**Will give brainiest
Answer:
707
bc
tan(3)=a/4960
Answer:
[tex]\boxed {\boxed {\sf 260 \ feet}}[/tex]
Step-by-step explanation:
We are asked to find the driver's altitude increase. The increase in altitude is also the height of the triangle, which is labeled a.
Since this is a right triangle (signified by the small square representing a 90 degree angle), we can use trigonometry. The three trigonometric ratios are:
sinθ=opposite/hypotenuse cosθ= adjacent/hypotenuse tanθ=opposite/adjacentThe angle (θ) given is 3 degrees. Side a is opposite this angle and the side measuring 4,960 feet is the hypotenuse because it is opposite the right angle. Therefore, we use sine.
[tex]sin \theta= \frac {opposite}{hypotenuse}[/tex]
[tex]sin 3= \frac {a}{4960}[/tex]
We are solving for a, so we must isolate the variable. It is being divided by 4960 and the inverse of division is multiplication. Multiply both sides by 4960.
[tex]4960*sin 3= \frac {a}{4960}*4960[/tex]
[tex]4960*0.05233595624= a[/tex]
[tex]259.586343=a[/tex]
Round to the nearest whole number. The 5 in the tenth place tells us to round the 9 to a 0 in the ones place, then the 5 to a 6 in the tens place.
[tex]260 \approx a[/tex]
The driver's increase in altitude is approximately 260 feet.
[tex]\frac{3}{x}+\frac{x}{x+2}[/tex]
Answer:
[tex]\frac{3}{x}+\frac{x}{x+2}= \frac{x^2+3x+6 }{x^2+2x}[/tex]
Step-by-step explanation:
Given
[tex]\frac{3}{x}+\frac{x}{x+2}[/tex]
Required
Solve
[tex]\frac{3}{x}+\frac{x}{x+2}[/tex]
Take LCM
[tex]\frac{3(x+2) + x * x}{x(x+2)}[/tex]
[tex]\frac{3(x+2) + x^2}{x(x+2)}[/tex]
Open brackets
[tex]\frac{3x+6 + x^2}{x^2+2x}[/tex]
Rewrite as:
[tex]\frac{x^2+3x+6 }{x^2+2x}[/tex]
Hence:
[tex]\frac{3}{x}+\frac{x}{x+2}= \frac{x^2+3x+6 }{x^2+2x}[/tex]
Which is equivalent to (2 × 5)^4
Answer:
32/40
Step-by-step explanation:
4x8 and 4x10
Can someone help me pls
Answer:
69
Step-by-step explanation:
both edges equal 90 degrees
90 plus 90 plus 111 =291
360-291
y varies directly as x. When x = 9, y = 27
Find y when x = 27
Answer:
y/x, 27/9 = 3, 3 = y/27, y = 81.
Step-by-step explanation:
Can somebody please help me!!!!
Answer:
Step-by-step explanation:
that the A on the triangle is pointed in the opposite direction should help you decide what happened.... how far around do you have to turn to be facing in the opposite direction?
if you said 180 ° , you'd be right :)
180 is the green choice, that looks good
Write and expression to represent the submarines elevation after its final dive
1. You invest $800 in a 2% savings account.
(a) After three years, how much interest have
you earned?
Answer:
A the end of three years you would earned $48.96 in interest.
Step-by-step explanation:
Henry used square papers, each measuring 1 square unit, to tile a rectangle with no gaps or overlaps. He sketched his work as shown. Use the
image to fill in the missing information.
Help need answer today!!!
Answer:
If you give me the image and what the question is then I will be happy to try and help you in the comments!
Step-by-step explanation:
One side of a rectangular yard is bounded by the side of a house. The other three sides are to be fenced with 425 ft of fencing. The length of fence opposite the house is 10 ft less than
either of the other two sides. Find the dimensions (in ft) of the yard.
shorter side ft
longer side ft
Answer:
Longer side = 145ft
Shorter side = 135ft
Step-by-step explanation:
Here we have a rectangle.
Let's define L as the longest side (the one that is perpendicular to the wall of the house) and S as the shorter side.
We know that the perimeter of a rectangle is:
P = 2*L + 2*S
So if we wanted to fence this rectangle, we would need fencing equal to the perimeter.
But in this case, one of the shorter sides does not need to be fenced, so we only need:
2*L + S of fencing.
And we know that we will use 425ft of fencing, then:
2*L + S = 425 ft
We also know that The length of the fence opposite the house is 10 ft less than either of the other two sides, then:
S = L - 10ft
Then we have two equations:
2*L + S = 425 ft
S = L - 10ft
Here we can just replace the second equation into the first one to get:
2*L + (L - 10ft) = 425 ft
Now we can solve this for L
2*L + L - 10ft = 425ft
3*L = 425ft + 10ft
3*L = 435ft
L = 435ft/3 = 145ft
This means that the longer side is 145ft long.
And by the equation:
S = L - 10ft
S = 145ft - 10ft = 135ft
S = 135ft
We know that the shorter side is 135ft long.
Question 3
The time needed for surgeons to complete a specific knee surgery is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes.
What is the probability that a surgery will last for more than 98 minutes?
0.0010
0.0359
0.9664
0.9641
Answer:
I would say d.im pretty sure tho
Can someone help me??
Answer:
1) x represents the # of cranes
3x represents the # of cranes * 3 minutes
10 represents the time the centerpiece took
30 is the time limit
2) x[tex]x\geq \frac{20}{3} or 6\frac{2}{3}[/tex]
Btw, i'm not sure which way the signs go since I learned this a while ago.
Step-by-step explanation:
Good Luck!!!
To the tenth place, what is the greatest number that rounds to 3
Answer:
2.99 i think
Step-by-step explanation:
Answer:
show your face
Step-by-step explanation:
7.
(6. Linda earns $2538 per month. Billie earns
$32,700 per year. Who earns more, Linda or
Billie?
Answer
& Kart's salary is $30,500 per year. If he gets a
9.
Answer: Billie earns more.
Step-by-step explanation:
Since Linda earns $2538 per month. We have to calculate her yearly earnings and this will be:
= $2538 × 12
= $30456
Billie earns $32,700 per year. From the calculation above, we can see that Billie earns more than Linda.
Exercise 11.1.2: Find the next permutation in lexicographic order. About For each permutation of {1, 2, 3, 4, 5, 6, 7}, give the next largest permutation or indicate that the permutation is the last one in lexicographic order. (a) (1, 2, 3, 4, 5, 6, 7) (b) (7, 6, 5, 4, 3, 2, 1) (c) (1, 7, 6, 4, 2, 3, 5) (d) (3, 7, 6, 5, 4, 2, 1) (e) (5, 4, 7, 6, 3, 2, 1)
Solution :
A permutation in the field of mathematics may be defined as the arrangement of its members into a linear order or a sequence. However, if a set is already being ordered, then it is the rearrangement of the elements of the set.
In the context, the next largest permutation set is :
a). (1,2,3,4,5,6,7)
b). The given permutation is the last one in the lexicographic order.
c). (1,7,6,4,2,5,3)
d). (4,1,2,3,5,6,7)
e). (5,6,7,4,3,2,1)
The next permutation in lexicographic order will be (5,6,7,4,3,2,1).
What is a permutation?
It should be noted that a permutation in the field of mathematics where there are several possible ways in which numbers or things can be ordered or arranged.
When applied to numbers, the lexicographic order is increasing numerical order. This is an increasing numerical order from left to right). For example, the permutations of {1,2,3} in lexicographic order are 123, 132, 213, 231, 312, and 321
In the context, the next largest permutation set is (5,6,7,4,3,2,1).
Learn more about permutations on:
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Based on the diagram, what is the length of AC?
A:6.2
B:12.4
C:17
D: 26
A radioactive substance has a continuous decay rate of 0.056 per minute. How many grams of a 120 gram sample will remain radioactive after 40 minutes? Round the answer to the nearest tenth of a gram, and do not include the unit in your answer.
Answer:
The mass of the radioactive sample after 40 minutes is 12.8 g.
Step-by-step explanation:
The mass of the sample can be found by using the exponential decay equation:
[tex] N_{t} = N_{0}e^{-\lambda t} [/tex]
Where:
N(t): is the amount of the sample at time t =?
N₀: is the initial quantity of the sample = 120 g
t = 40 min
λ: is the decay constant = 0.056 min⁻¹
Hence, the mass of the sample after 40 min is:
[tex] N_{t} = N_{0}e^{-\lambda t} = 120g*e^{-0.056min^{-1}*40 min} = 12.8 g [/tex]
Therefore, the mass of the radioactive sample after 40 minutes is 12.8 g.
I hope it helps you!
Write the slope-intercept inequality for the graph below. If necessary, use <=
for s or >= for 2.
(1,-1)
(2,-5)
4n -6 = 10n
Simplify.
-----------------------------------------------------------------------------------------------------------------
Answer: n = -1
-----------------------------------------------------------------------------------------------------------------
add 6 to both sides of the equation.
4n − 6 = 10n
4n − 6 + 6 = 10n + 6
-----------------------------------------------------------------------------------------------------------------
simplify.
(add the numbers)
4n − 6 + 6 = 10n + 6
4n = 10n + 6
4n = 10n + 6
-----------------------------------------------------------------------------------------------------------------
subtract 10n from both sides.
4n − 10n = 10n + 6 − 10n
-----------------------------------------------------------------------------------------------------------------
simplify. (again)
(combine like terms) (combine like terms)
4n − 10n = 10n + 6 − 10n −6n = 10n + 6 − 10n
−6n = 6
-----------------------------------------------------------------------------------------------------------------
divide both sides by the same term.
−6n/−6 = 6/-6
n = 6/−6n = 6/−6
-----------------------------------------------------------------------------------------------------------------
simplify. (again)
(cancel terms that are in both the numerator and denominator)
n = 6/−6
(divide the numbers)
n = 6/−6
n = 1
-----------------------------------------------------------------------------------------------------------------
Answer:
n= -1
Step-by-step explanation:
can someone please help me
Answer:
B
Step-by-step explanation:
minimum = 1
first quartile = 12
median = 6
third quartile = 16
maximum = 19
whats the answer to this question
Answer:
a=20
Step-by-step explanation:
7+13=20
20-7=13
1) The endpoints of AB are A(-3, 8) and B(4,5). If AB is
dilated by a scale factor or 2, what is the slope and length
of A'B?
No links pls!!!
Answer:
ehhhhhhhhhhhhhhhhhhh
Find the exact value of y
9514 1404 393
Answer:
y = 27
Step-by-step explanation:
In these similar right triangles, the ratio of long side to short side is the same.
y/18 = 18/12
y = 18(18/12)
y = 27
Ms.hernandez is taking her children and their friends to the movies. She will pay $10 for her adult tickets and $7 for each child ticket. Ms.Hernandez does not want to spend more than $40. which equality can be used to find c, the number of child tickets ms.hernandez can purchase?
Answer:
10a + 7c < 40
Step-by-step explanation:
A large supermarket chain was interested in seeing if they could increase their holiday sales by starting their Black Friday sales 2 hours earlier than normal. To test this, they randomly selected half of their 500 stores and told them to start their sales at the new starting time, while the other half of the stores would start at the standard starting time. Which of these answers represents an element of replication in this study?
a. they randomly selected half
b. their 500 stores
c. while the other half of the stores would start at the standard starting time
d. 250 stores
Answer:
wow hold on BTW I LIKE YOUR CUG
The element of replication in the study is option b, their 500 stores.
What is Replication in Statistics?Replication in statistics id defined as that repeating an experiment so that the variability if any existing in the event can be noticed.
Replicate is termed as each of the repetition.
Given that,
A large supermarket chain was interested in seeing if they could increase their holiday sales by starting their Black Friday sales 2 hours earlier than normal.
To test this, they randomly selected half of their 500 stores and told them to start their sales at the new starting time, while the other half of the stores would start at the standard starting time.
So here the replication is the repetition of the same experiment by 500 stores.
So the element of replication is 500 stores.
Hence 500 stores is the element of replication.
Learn more about Replication here :
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What is the value of X to the nearest tenth???
Answer:
11
Step-by-step explanation: