Answer Questions.
Round off decimals
1) 0.67 (1 decimal place)
2) 9.699 (2 decimal place)
Answer:
1. 0.7
2. 9.7
Step-by-step explanation:
1. 0.67->0.7
2. 9.699->9.7
A plane is flying at a height of 35,000 ft. (feet) above sea level. At a particular point, it is directly above a submarine floating 3,500 ft. below sea level and a military drone flying at a height of 3,500 ft. By how much must the military drone ascend so that it is vertically in the middle of the plane and the submarine?
The military drone must ascend 12250 from its position of 3500ft above sea level feet so that it is vertically in the middle of the plane and the submarine.
To solve this problem we need to understand the concept of sea-level. The sea-level is defined as the average height of all water bodies of the earth. Below sea level is effectively taken as negative length and above sea -level is taken as positive length.
Let us consider the drone will have to ascend x feet to be vertically in between the plane and the submarine.
The submarine is 3500 feet below the sea level.
The plane is 35000 feet above the sea level.
Now we know that the drone is at a height of 3500 feet above the sea level.
Total distance between the drone and the ship=35000-(-3500)=38500ft
Middle point of the two=38500/2 = 19250 feet from the plane
Height above sea level for the drone should be=35000-19250=15750 ft
height of the drone=3500ft
The drone should ascend=15750-3500=12250 feet
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Lisa wants to buy some new shirts are her favorite store. Each shirt costs $15 and she wants to buy a pair of shoes that are $35. Lisa only has $137 to spend.
Let S represent the number of shirts that Lisa buys.
Which inequality describes this scenario?
137 > 15s + 35
137 ≥ 15s + 35
137 < 15s + 35
137 ≤ 15s + 35
John works at the mall 20 hours a week and makes $8.50 an hour. He is saving for a car and needs a down payment of $500.
The will have to work for 3 weeks in order to save money for down payment of car.
What is the unitary method?Unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given in the question is a story of john works at the mall, 20 hours a week and makes $8.50 an hour. He is saving for a car and needs a down payment of $500.
Assume that he has to work 'x' number of weeks for down payment.
For 1 hour, John earns → $8.50
Number of hours he work in the mall per week → 20 hours
Amount of money collected in one week → $8.50 x 20 = $170
Money needed for down payment → $500
In 1 week, John earns → $170
So, he earns $1 in → 1 / 170 weeks
Therefore, he will earn $500 in →
(1 / 170) x 500 = 2.94 = 3 weeks (approx.)
Therefore, he will have to work for 3 weeks in order to save money for down payment of car.
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What is the radius of a circle that has a diameter of 73.2 ft?
Answer:
36.6
Step-by-step explanation:
Use the frequency distribution shown below to construct and expand frequency distributions
The expanded frequency distribution is attached
How to get the expand frequency distributionThis will have additional columns which include
midpointrelative frequencycumulative frequencyThe midpoint
The mid point is gotten by adding the lower class limit and the lower class limit and dividing by two
for instance: 10 + 20 / 2 = 10
The relative frequency
In this column they are in percent and the alue is gotten by first summing up all the frequency then finding the percent of each.
for instance: the total sum of the frequency is 365 so
( 17 / 365 ) * ( 100 / 1 ) = 4.66%
The cumulative frequency
The cumulative frequency is solved by sequential addition of the frequency
for instance:
17 next is
17 + 44 = 61
61 + 68 = 129
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Multiply 39.341 × 0.72 =
solve by inverse matrix method 2x-y=1, 3y-x-z=8, y-2z=5
please help me my exam is tomorrow
[tex]\frac{-332}{-4}[/tex]
Answer:
83
Step-by-step explanation:
[tex] \frac{ - 332}{ - 4} = 83[/tex]
I need help please. I think its C but i want to be sure!
Is this relation a function? Justify your answer.
A. No, because two points with the same x-value have different y-values.
B. Yes, because every x- and y-value is positive.
C. Yes, because the number of x-values is the same as the number of y-values.
D. No, because two points with the same y-value have different x-values.
Answer:
A. No, because two points with the same x-value have different y-values.
Step-by-step explanation:
You want to know if the graph represents a function.
FunctionA function is a relation that maps any input value to exactly one output value. On a graph, any vertical line will intercept a function graph in exactly one place.
ApplicationOn the given graph, the vertical line x=10 intersects the graph in two places (y=6 and y=9, different y-values). The graphed relation is not a function.
Change 1,314,000 minutes to years
Answer:
1,314,000 minutes is equal to 2.5 years.
Brainliest, please :)
In Question 1-2, determine the type of reasoning for each statement, (GEOMETRY)
1. IN ORDER TO PARTICIPATE IN SCHOOL SPORTS, STUDENTS MUST HAVE A MINIMUM GPA OF 2.0, JIM HAS A GPA OF 2.75 THEREFORE HE CAN PARTICIPATE IN SCHOOL SPORTS.
2. EVERY TUESDAY THAT YOLANDA FAMILY HAS VISITED A SPECIFIC LOCAL RESTAURANT , THE KIDS MEAL HAVE BEEN FREE. WHEN YOLANDA FAMMILY VISITS THAT RESTAURANT NEXT TUESDAY, the kids meal will bee free.
Answer:
uyrddfhjjki
Step-by-step explanation:
Best's Computers claims that of its 4280 items in inventory, 3636 items are IBM PC, while the rest are Apple. What percent of total
inventory is Apple? Round to the nearest tenth of a percent.
select one :
A. 6.6%
B. 15.0%
C. 85.0%
D. 0.8%
The percent of total inventory is Apple, rounded to the nearest tenth of a percent is 15.0%
How do we determine the percentage of claims in Apple?
Out of the total claims of 4,280 items in inventory, the number of claims in Apple is determined as the total claims minus the number of claims attributable to IBM, such that the percentage of total inventory in Apple is computed as the number Apple's claims divided by total claims
number of claims in Apple=total claims-number of claims in IBM
total claims=4,280
number of claims in IBM=3636
number of claims in Apple=4280-3636
number of claims in Apple=644
% of claims in Apple=number of claims in Apple/total claims
% of claims in Apple=644/4280
% of claims in Apple=15.0%(rounded to 1 decimal place as shown in the options provided)
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How to solve that question?
Answer:
(i) (x√x)/3 -(√x)/2
(ii) f(x) = x³/27 +3x -5
Step-by-step explanation:
You want the value of the integral in each case. One integral is indefinite, the other has conditions specified.
In each case, the power rule applies:
[tex]\displaystyle \int{x^n}\,dx=\dfrac{x^{n+1}}{n+1}[/tex]
(i) indefinite integralThe integral can be rewritten as the sum of two integrals involving half powers.
[tex]\displaystyle \int{\dfrac{2x-1}{4\sqrt{x}}}\,dx=\dfrac{1}{2}\int{x^{\frac{1}{2}}}\,dx-\dfrac{1}{4}\int{x^{-\frac{1}{2}}}\,dx=\dfrac{x^{\frac{3}{2}}}{2\left(\dfrac{3}{2}\right)}-\dfrac{x^{\frac{1}{2}}}{4\left(\dfrac{1}{2}\right)}\\\\=\boxed{\dfrac{1}{3}x\sqrt{x}-\dfrac{1}{2}\sqrt{x}}[/tex]
(ii) f'(x)=ax²+bYou are given the derivative and three conditions:
f'(x) = ax² +bf'(3) = 4f(3) = 5f(0) = -5Together with the integral, the conditions give rise to three equations in the three unknown coefficients.
[tex]\displaystyle f(x) = \int{ax^2+b}\,dx=\dfrac{a}{3}x^3+bx+c[/tex]
Then the equations we can write for a, b, c are ...
f'(3) = 4 ⇒ a(3²) +b = 4
f(3) = 5 ⇒ (a/3)(3³) +b(3) +c = 5
f(0) = -5 ⇒ a(0³) +b(0) +c = -5
The last equation gives the value of c = -5, so the remaining equations become ...
9a +b = 4
9a +3b = 10
Subtracting the first from the second, we have ...
(9a +3b) -(9a +b) = (10) -(4)
2b = 6
b = 3
Using this in the first equation, we find 'a' to be ...
9a +3 = 4
a = 1/9
Then f(x) is ...
[tex]\boxed{f(x)=\dfrac{1}{27}x^3+3x-5}[/tex]
Evaluate 3√-512.
A. Write your answer as an integer.
B. Explain how you can check that your result is correct.
:) Please help
The value of number 3[tex]\sqrt{-512}[/tex] as complex number is equal to 67.88i.
Given that the number is 3[tex]\sqrt{-512}[/tex].
We are required to find the value of the given number.
We have to first find out the square root of 512. Since we cannot find the square root of a negative number so we have to assume it as complex number and we will multiply the resultant number with i.
A complex number is basically an element of a number system that extends the real numbers with a specific element denoted i called the imaginary unit and satisfying the equation i² = −1 every complex number can be expressed in the form a + bi where a and b are real numbers.
3[tex]\sqrt{-512}[/tex] =3*22.627
=67.88i
It is not an integer and we cannot solve it further.
Hence the value of 3[tex]\sqrt{-512}[/tex] as an complex number is equal to 67.88i.
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There is something wrong in the statement of the question because the solution of 3[tex]\sqrt{-512}[/tex] will not be an integer.
A bee flies at 12 feet per second directly to a flowerbed from its hive. The bee stays at the flowerbed for 14 minutes, and then flies directly back to the hive at 8 feet per second. It is away from the hive for a total of 19 minutes.
The distance, D, is 5,760,000 divided by 2,160, which is 2666.67 (approx)
What exactly does "time function" mean?The TIME function is included as part of Excel's Date and Time features. With the assistance of TIME, we are able to create a time by employing various components for the hours, minutes, and seconds.
While conducting financial analysis, it's possible that we'll need to date a report. Under these conditions, the TIME function may be used to convert a text string into a format that presents the time as a decimal representation of the seconds, minutes, and hours.
Additionally, the function's capabilities include the ability to merge several values into a single time value.
formula= TIME (hour, minute, second)
distance = rate X time
D = RT
T = D/R
720 feet in a minute is equal to 12 feet per second.
480 feet per minute is equal to 8 feet per second.
The number of minutes to go to the flowerbed plus 14 minutes plus the number of minutes to get back to the hive equals 19 minutes.
(D/R) + 14 + (D/R) = 19
(D/R) + 14 + (D/R) = 19
In conclusion, The calculation that we may use to get the distance from the flowerbed to the hive is (D/720 ) plus 14 plus (D/480), which is 19.
(D/720 ) + (D/480) = 5
(D(1200)(480))/1200 + (D(720 )(480))/960 = 5(1200)960
480D + 1200D = 5(720 )480
1200D= 1728000
D=1440
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Can someone do 1-20 I give Brainly
Answer:
The square root of 36 is 6 8 cube root is 2 125 cube root is 5 The rationalisation of 12 is 2×2×3
Larissa is picking out some movies to rent, and she is primarily interested in horror films and foreign films. She has narrowed down her selections to 19 horror films and 18 foreign films. Step 1 of 2 : How many different combinations of 3 movies can she rent?
Based on the number of horror films and the number of foreign films, the number of different combinations of 3 movies that Larissa is able to rent are
How many combinations can be rented?The total number of movies that Larissa has narrowed down are:
= 19 + 18
= 37 movies
The number of combinations of 3 movies that Larissa can select are:
= Total number of movies! / ( ( Total number of movies - Number of combinations)! x Number of combinations!)
= 37! / ( (37 - 3)! - 3!)
= 46,620 combinations
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Give the procedure for separating crude oil into its constituents
Answer:
Fractional distillation
Step-by-step explanation:
Fractional distillation is the process by which oil refineries separate crude oil into different, more useful hydrocarbon products based on their relative molecular weights in a distillation tower.
the cost of 5 popcorns and 2 drinks is $11.50. The cost of 3 popcorns and 4 drinks is $12.50. find the cost of one popcorn. find the cost of one drink
Answer:
I tried to solve I got the value of a drink but a popcorn's value comes in negative... Can you recheck it please.......
What’s the answer
|z/4+5|=-7
Answer:
No solutions
Step-by-step explanation:
To solve systems of inequations with absolute values you need to isolate the items inside of the absolute value brackets then solve for x.
[tex]|\frac{x}{4}+5|=-7\\\frac{x}{4}+5=-7\\\frac{x}{4}=-12 \\x=-48[/tex]
Therefore our answers would be -48 and 48, however there are no answers to this solution as if you try either it does not equal -7. Furthermore graphing both sides of the equations shows there is no intersection.
How can the discriminant be used to determine the number of solutions for a trinomial
in standard form?
See below for the explanation on how discriminant be used to determine the number of solutions
How can the discriminant be used to determine the number of solutions?Let a trinomial in standard form be represented as
y = ax^2 + bx + c
The discriminant (d) is calculated as
d = b^2 - 4ac
The solutions are dependent on the following conditions
If d = 0, the trinomial has 1 real solutionIf d < 0, the trinomial has imaginary solutionsIf d > 0, the trinomial has 2 different real solutionsRead more about discriminant at
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please help! i don’t get axioms and my teacher is unavailable for questions right now
Answer:
2nd option ==> closure rule
Step-by-step explanation:
You know the perimeter of a square to be 34 meters. Find the length of one side.
Step 2 of 3: Without substitution, solve the formula for the unknown variable in terms of the known variables.
The side of one side of the square is determined as: 8.5 meters.
What is a Square?A square is a quadrilateral shape that has four sides that have the same length and four interior angles that are right angles (90 degrees).
What is the Perimeter of a Square?The perimeter of a square is the sum of all the sides of a square which can be calculated using the following formula given as,:
Perimeter = 4(s), where s represents the length of one side of the square.
We are given that:
Perimeter of the square = 34 meters
Therefore:
34 = 4(s)
Divide both sides by 4
34/4 = 4(s)/4
8.5 = s
s = 8.5 m
Thus, the side of one side of the square is determined as: 8.5 meters.
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The common ratio of a sequence is 1/2. Two terms in the sequence are a5=1 and a8=1/8
what is the recursive formula?
Answer:
Since r = 1/2, and the fifth term = 1
1 = A×[(1/2)^(5-1)]
1 = A×[(1/2)^4]
1 = A× (1/16)
Step-by-step explanation:
quadratic equation
4x2-4x-1=0
The solutions to the given quadratic equation 4x² - 4x - 1 = 0 are x = ( 1 - √2 )/2, ( 1 +√2 )/2.
What is the solution(s) to the given quadratic equation?A quadratic equation in its standard form is;
ax² + bx + c = 0
Where x is the unknown
To solve for x, we use the quadratic formula
x = (-b±√(b² - 4ac)) / (2a)
Given the equation in the question;
4x² - 4x - 1 = 0
Compared to the standard form ax² + bx + c = 0
a = 4b = -4c = -1Plug these values into the quadratic formula above.
x = (-b±√(b² - 4ac)) / (2a)
x = (-(-4) ± √((-4)² - ( 4 × 4 × -1 ))) / (2 × 8)
x = ( 4 ± √( 16 - ( -16) ) / (8)
x = ( 4 ± √( 16 + 16) ) / (8)
x = ( 4 ± √( 32) ) / (8)
32 can be written as 4²×2
x = ( 4 ± √( 4²×2 ) ) / (8)
x = ( 4 ± 4√2 ) / (8)
x = ( 1 ± √2 ) / 2
x = ( 1 - √2 )/2, ( 1 +√2 )/2
Therefore, the solutions to the given quadratic equation 4x² - 4x - 1 = 0 are x = ( 1 - √2 )/2, ( 1 +√2 )/2.
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In some racing events, downhill skiers receive the average of their times for three trials. Would you prefer the average time to be the mean or the median if you had… one very good time and two average times?
Answer:
Median
Step-by-step explanation:
i think median would be better than mean. This is because with mean, your adding it together then dividing it(by 3 in this case), making the end number higher. tou dont want a higher number in this case.
ex: your numbers are 50, 55,and 90
median = 55 (as it's the middle number)
mean = 65 ( 90+ 55+ 50 / 3)
so median is the lower number, meaning it would be better in this** case.
For the function f(x) = 2 - 3x, find f(-4).
-10
-5
12
14
Answer: 12
Step-by-step explanation: f(-4)= 2-3(-4) which =2+12=14
Kelsey must pay $200 to rent a booth at the craft fair. The materials for each pendant cost $7.80, and she plans to sell each pendant for $13.50. To make a profit, she must make more money than she spends. Kelsey has already made 10 pendants. Part A Given that Kelsey has already made 10 pendants, how many additional pendants must she make and sell to make a profit?
To make a profit Kelsey must make and sell more than 49 additional pendants
in this given sum we need to find how many additional pendents kelsey need to make and sell to make profit . The information that are give in the sum
she has to pay $200 for the rent
materials for each pendant is $ 7.8 .
for 10 pendants the total will be 10*7.8 = $78
Therefore she will spend a total of $(78 +200) = $278
So to make a profit the amount of pendants kelsey make multiply it by 13.50 should be greater than the totall amount she spend in making 10 pendants $278 added to the number of pendants she makes multiply by 7.8 that is the total cost
let the no. of pendants she need to make be x
we can write then above explanation as
13.50x >278 + 7.8x
=> 13.5x - 7.8x > 278 +7.8x - 7.8x [subtracting 7.8x on both side]
=> 5.7x > 278
=> x > 278/5.7 = 48.77 = 49 (approx.)
Kelsey needs to make more than 49 pendants rto make a profit.
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Geometry homework… the questions after the photo are “9. Find the value of angle RIG” and “10. Find the value of angle ZIM” If you can seriously help me it would mean a lot. Thanks
Answer: The value of RIG is 59 degrees and the value of ZIM is 31 degrees.
Given: Lines AM,ZG, RI are parallel
angle RIM = 90 degree and lines AM,ZG and RI intersect at point I.
Concept: All angles on the same line make an angle of 180 degree.
Since all angles on a line make an angle sum of 180 degree
So using the above property of straight lines,
Angle RIA + angle RIG + angle GIM = 180 degree
90 + 4z+7 +x+2 = 180
4z+x = 81 ----- (1)
Angle AIZ + angle AIR + angle RIG = 180 degree
3x-56 + 90 + 4z+7=180
3x +4z =139 ----- (2)
3(81-4z) +4z =139
243 -8z =139
z=13
x= 81- 52 = 29
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Answer:
timmy neorons, descaration
Step-by-step explanation:
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