Answer:
1/4 , 25%
Step-by-step explanation:
https://brainly.com/question/4091485
Please answer it now in two minutes
Answer:
8sqrt(3)
Step-by-step explanation:
30-60-90 truangle ratio of lengths of sides:
1 : sqrt(3) : 2
24/d = sqrt(3)/1
d * sqrt(3) = 24
d = 24/sqrt(3)
d = 24/sqrt(3) * sqrt(3)/sqrt(3)
d = 24sqrt(3)/3
d =
Gravel is being dumped from a conveyor belt at a rate of 20 ft3 /min and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 15 ft high
Answer:
The height of the pile is increasing at the rate of [tex]\mathbf{ \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}[/tex]
Step-by-step explanation:
Given that :
Gravel is being dumped from a conveyor belt at a rate of 20 ft³ /min
i.e [tex]\dfrac{dV}{dt}= 20 \ ft^3/min[/tex]
we know that radius r is always twice the diameter d
i.e d = 2r
Given that :
the shape of a cone whose base diameter and height are always equal.
then d = h = 2r
h = 2r
r = h/2
The volume of a cone can be given by the formula:
[tex]V = \dfrac{\pi r^2 h}{3}[/tex]
[tex]V = \dfrac{\pi (h/2)^2 h}{3}[/tex]
[tex]V = \dfrac{1}{12} \pi h^3[/tex]
[tex]V = \dfrac{ \pi h^3}{12}[/tex]
Taking the differentiation of volume V with respect to time t; we have:
[tex]\dfrac{dV}{dt }= (\dfrac{d}{dh}(\dfrac{\pi h^3}{12})) \times \dfrac{dh}{dt}[/tex]
[tex]\dfrac{dV}{dt }= (\dfrac{\pi h^2}{4} ) \times \dfrac{dh}{dt}[/tex]
we know that:
[tex]\dfrac{dV}{dt}= 20 \ ft^3/min[/tex]
So;we have:
[tex]20= (\dfrac{\pi (15)^2}{4} ) \times \dfrac{dh}{dt}[/tex]
[tex]20= 56.25 \pi \times \dfrac{dh}{dt}[/tex]
[tex]\mathbf{\dfrac{dh}{dt}= \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}[/tex]
The height of the pile is increasing at the rate of [tex]\mathbf{ \dfrac{20}{56.25 \pi} \ \ \ \ \ ft/min}[/tex]
If $N$ is a positive integer and $N^2 = 91,\!204$, what is the value of $N$?
Answer:
302
Step-by-step explanation:
Given ...
[tex]N^2 = 91,\!204[/tex]
the value of N is found by taking the square root.
[tex]N=\sqrt{91,\!204}=\boxed{302}[/tex]
For a trapezoid, the midsegment is one-half of...
a) the opposing leg
b) the square of the largest leg
c) the same as the smallest leg.
d)the sum of the bases
Answer:
D
Step-by-step explanation:
Mathematically, the mid segment of a trapezoid is exactly the average of the 2 parallel bases
What this means is that to find the length of the trapezoid, we will need to find the average of the two parallel bases
Mathematically, this is same as adding the two bases and dividing the result by 2.
Hence we can say it is exactly one-half the length of the sum of the two parallel bases
Which statement could the expression n + 1 represent? one point greater than the last test grade the difference of Gina's score and one the total cost less one dollar one minute less than Mickey's previous time
Answer:
A. One point greater than the last test grade.
Step-by-step explanation:
One point greater than the last test grade can be written as an expression:n + 1
The difference of Gina’s score and one can be written as an expression:
n - 1
The total cost less one dollar can be written as an expression: n - 1
One minute less than Mickey’s previous time can be written as an expression: n - 1
Answer:
Step-by-step explanation:
its A
Find the area of the composite figure in square mm. Round your
answer to the nearest square milimeter. (Enter only a number as
your answer.)
20 mm
D
C
T
14 mm
A
B
32 mm
Answer:
32mmmmmmmmmmmmmmmmm
**BRAINLIEST IF ANSWERED***
A regular hexagon is shown. What is the measure of half the side length, b, rounded to the nearest whole inch? Use the appropriate trigonometric ratio to solve. *
6 in
24 in
14 in
7 in
Answer:
(D)7 in.
Step-by-step explanation:
A regular hexagon can be divided into six equilateral triangles.
Therefore:
[tex]b=\dfrac{c}{2}[/tex]
Applying Pythagoras Theorem
[tex]c^2=12^2+b^2\\c^2=12^2+(\frac{c}{2})^2\\c^2-(\frac{c}{2})^2=12^2\\c^2-\dfrac{c^2}{4}=144\\\dfrac{4c^2-c^2}{4}=144\\\dfrac{3c^2}{4}=144\\$Cross multiply\\3c^2=144 \times 4\\3c^2=576\\$Divide both sides by 3\\c^2=192\\$Therefore:\\c=\sqrt{192}\\c=8\sqrt{3}$ in.[/tex]
Recall that b=c/2
Therefore:
[tex]b=4\sqrt{3} \approx 7$ in.[/tex]
The value of b is 7 inches.
Which of the following is the radical expression of 2 times d to the seven tenths power?
Answer:
2d^0.7
Step-by-step explanation:
She puts a value in the box and says that the equation represents a direct variation. Which explains whether the equation could represent a direct variation
Answer:
y = kx where k>0
Step-by-step explanation:
A direct variation is in the form
y = kx
where k is a numerical positive constant ( i.e. > 0 )
Answer:
0
Step-by-step explanation:
If she puts 0 in the box she would have a direct variation.
Step-by-step explanation:
Given : She writes the equation y = 5x - __ with a missing value.
She puts a value in the box and says that the equation represents a direct variation.
We have to choose the correct option from the given options that explain that the equation could represent a direct variation.
When two variables are such that one is a constant multiple of other, we said they are in Direct variation.
That is in form of y = ax , here y and x are in direct variation.
Consider the given equation y = 5x - __
For the equation to be in direct variation the value of missing term has to be 0.
then equation becomes,
y = 5x
Thus, If she puts 0 in the box she would have a direct variation.
Calculate the size of the largest angle in the triangle. Give your answer to an appropriate degree of accuracy.
Answer:
110.9° = 111°
Step-by-step explanation:
Given ∆ABC, where
length of side AB = 15 cm,
length of side AC = 7 cm
length of side BC = 11 cm
Required:
Size of largest angle in ∆ABC
SOLUTION:
The size of the largest angle in the triangle is the angle that has the largest side length opposite it.
Therefore, the largest angle in ∆ABC = <C, which has a side length of 15 cm opposite it.
=>Find the angle of C using the Law of Cosine
Cos C = (a² + b² - c²)/2ab
Cos C = (11² + 7² - 15²)/2*11*7
Cos C = (121 + 49 - 225)/154
Cos C = -55/154
Cos C = -0.3571
C = Cos-¹(-0.3571)
C = 110.9° ≈ 111°
WILL CHOOSE BRAINLIEST 5 STARS AND THANKS...How many 6-digit numbers, formed using each digit from 1 to 6 exactly once, are divisible by: Divisible by 5 Divisible by 12 Divisible 25
Answer:
( edited )
1. divisible by 5 : 120
2. divisible by 12 : 192
3. divisible by 25 : 24
See explanations below.
Step-by-step explanation:
Given:
6 digit number
digits all unique between 1 to 6
divisible by 5, 12 and 25
Find how many such numbers
solution:
1. Divisible by 5.
The last digit must be 5. That leaves five digits (1,2,3,4,6) for the rest of the numbers. So there are 5! = 120 such numbers.
2. Divisible by 12 (edited again)
All numbers formed from unique digits 1,2,3,4,5,6 are divisible by 3, since 1+2+3+4+5+6 = 21 which is divisible by 3.
For the 6 digit numbers divisible by 12, the two end digits must be divisible by 4, for which there are 8 ( 12,16,24,32,36, 52, 56, 64)
For each of the 8 numbers, we have 4 more digits to tag on for which there are 4! = 24 permutations. Thus there are 8*24 = 192 numbers divisible by 12.
3. divisible by 25
All numbers ending in 00, 25, 50 or 75 are divisible by 25.
Using digits 1 to 6, only those ending in 25 qualify.
Thus that leaves us with 4 digits to make 4! = 24 variations.
Thus there are 24 such numbers.
how to calculate 71-5(3)-(4*4)
Answer:
40
Step-by-step explanation:
first do what is in the parentheses (4*4) which is 16 then rewrite the whole equation. 71-5(3)-16. then you'll want to multiply 5 times 3 because if there is no sign before the parentheses then it is automatically multiplication. 5 times 3 is 15. rewrite the equation again. 71-15-16 then simply subtract.
Hope this helps! :)
Write a whole number that rounds to 9000 if we are rounding to the nearest thousand.
Answer:
Some examples: 8888, 8551, 9237, 9441.
Answer:
the answer could be any number from 8500 to 9400
Step-by-step explanation:
hope this helps
Question 2 PLEASE HELP A linear function has the same y-intercept as x+2y=8 and it’s graph contains the point (9,6) find the y-intercept of the linear function. Y-intercept: (0,____)
Answer:
The Y-intercept is (0,4) for the expression x+2y=8 (simplified to y=-1/2x+4)
The Y-Intercept for the linear graph is (0,10.5)
Which is the best definition of an isosceles triangle?
Answer:
Step-by-step explanation:
A triangle with two angles that are the same with a third thats different or somthing.
write the slope-intercept form of the equation of the line described and graph. Through: (3,-3), perpendicular to x=0
Can someone please help...
This is a quantitative (maths) question. I’m going to show the solved examples, Cena someone explain the examples to me?
Please ignore the question above and explain examples.
Answer:
See below for explanation of the examples.
Step-by-step explanation:
Left example
It is an exercise in addition, i.e. 48+122=170, the answer is written in the bottom box.
Right example
It is an exercise in subtraction, i.e. 8 1/2 - 3 1/2 = 5
The answer is written in the bottom box.
There is no indication though as to when to do the addition, and when to do the subtraction. Perhaps it would be shown in the rest of the page (not shown).
what is the range of the stem leaf 1/0157 2/137 3/6 4/01138 find the range of times
Answer:
[tex]\boxed{Range = 38}[/tex]
Step-by-step explanation:
Lowest No. = 10
Highest no. = 48
Range = Lowest No. - Highest No.
Range = 48-10
Range = 38
The probability that you roll a two on a six-sided die is 16. If you roll the die 60 times, how many twos can you expect to roll?
Find the area of the triangle.
Answer:
12.86
Step-by-step explanation:
Area=ab *siny/2
a=side
b=base
y=angle
put the values and you got the answer...
hope it helps
Answer:20
Step-by-step explanation: The answer is 20 because to find the Area you use the formula of 1/2 x base x height. 8 is the height and 5 is the base.
8 x 5 =40
Then multiply by 1/2 which will equal 20
Express in simplest radical form.
64 2/3 • 64 1/3
Answer:
The answer to this in simplest radical form is 4160 2/9.
Which of the following inequalities is graphed on the coordinate plane? A.y≤-2x=+1
Answer:
y≤-2x=+1
Step-by-step explanation:
this will definitely on coordinate plan.
Kindly completed your question as it seem unfinished
Using a pencil, pair of compasses and ruler, construct a right angled triangle with hypotenuse 9cm and shorter side 4cm. Measure the angle opposite 4cm side to the nearest degree.
Answer:
hope it will help uh.....
which of the following is the equation of the quadratic function below?
Answer:
A. y = x² - 9x + 18
Step-by-step explanation:
The key thing to look for in this graph is the y-intercept (where the graph will hit the y-axis).
We can't see exactly where y-intercept is, but we know it is a positive number.
In a standard form quadratic equation:
y = ax² + bx + c
'c' tells you what the y-intercept is.
The choices with positive y-intercept are A and B.
Again, we can't see exactly where y-intercept is, but we know it is not 1.
y = x² - 9x + 18
has a positive y-intercept that is not 1,
thus the answer is A.
_______________________
can someone help me solve this question? Thank you.
Answer:
-60
Step-by-step explanation:
Factor the problem out using FOIL.
The end result is: −60[tex]x^{2}[/tex]−84x+9
The value of coefficent a (the number in front of the x^2) is -60.
An insurance company models the number of warranty claims in a week on a particular product that has a Poisson distribution with mean 4. Each warranty claim results in a payment of 1 by the insurer. Calculate the expected total payment by the insurer on the warranty claims in a week.
Answer:
4 monetary units
Step-by-step explanation:
In a Poisson distribution, the expected value of the distribution is the same as the mean:
[tex]E(X)=\mu=4\ claims[/tex]
The expected number of warranty claims is 4.
Since each claim results in a payment of 1, the expected value paid by the insurer is:
[tex]E(V)=E(X)*V(X)\\E(V)=4*1 = 4[/tex]
The expected total payment on warranty claims is 4 monetary units.
Can someone please help me with this question I’m stuck on
Answer:
The answer is option D.
Hope this helps
Answer:
D
Step-by-step explanation:
X-5 is not a factor because is a reminder and 5 is not a zero because
p ( 5)=4
On december 31, there were 40 units remaining in ending inventory. these 40 units consisted of 5 from january, 6 from february, 10 from may, 4 from september, and 15 from november. using the specific identification method, what is the cost of the ending inventory?
Answer:
$5,675
Step-by-step explanation:
Answer:
Step-by-step explanation:
Calculation for the cost of the ending inventory using specific identification method.
Using this formula
Cost of ending inventory =
(January units ×January cost) +( February units ×February cost) + (May units × May cost) + (September units ×September cost) + (November units × November cost)
Cost of ending inventory =
January 5 units ×$116=$580
February 6 units ×$127=$762
May 10 units ×$139=$1,390
September 4 units ×$147=$588
November 15 units×$157=$2,355
Total =$5,675
Therefore the ending inventory using the specific identification method will be $5,675
factorise 5y_6py.answer
A jar of sweets contains 5 yellow sweets, 4 red sweets, 8 green sweets, 4 orange sweets and 3 white sweets. Ola chooses a sweet at random. What is the probability that she will pick either a yellow or orange sweet?
Using the probability concept, it is found that there is a 0.375 = 37.5% probability that she will pick either a yellow or orange sweet.
A probability is the number of desired outcomes divided by the number of total outcomes.
In this problem:
There are 5 + 4 + 8 + 4 + 3 = 24 sweets, hence [tex]T = 24[/tex]Of those, 5 are yellow and 4 are orange, hence [tex]D = 9[/tex].The probability that she will pick either a yellow or orange sweet is:
[tex]p = \frac{D}{T} = \frac{9}{24} = 0.375[/tex]
0.375 = 37.5% probability that she will pick either a yellow or orange sweet.
A similar problem is given at https://brainly.com/question/15536019
Probability to pick yellow or orange sweet is 3 / 8
Given:
Number of yellow sweet = 5
Number of red sweet = 4
Number of green sweet = 8
Number of orange sweet = 4
Number of white sweet = 3
Find:
Probability to pick yellow or orange sweet
Computation:
Total number of sweets = 24 sweets
Probability to pick yellow = 5 / 24
Probability to pick orange = 4 / 24
Probability to pick yellow or orange sweet = 5/24 + 4/24
Probability to pick yellow or orange sweet = 9 / 24
Probability to pick yellow or orange sweet = 3 / 8
Learn more:
https://brainly.com/question/21807199?referrer=searchResults