Answer:
4/13
Step-by-step explanation:
an article is bought and sold with a profit of 25% of selling price.find the profit percent
Answer:
Profit on cost will be = 33.33%
The temperature in a room at midnight is 20 degrees Celsius. Over the next 24 hours, the temperature changes at a rate modeled by the differentiable function H, where H(t) is measured in degrees Celsius per hour and time t is measured in hours since midnight. Which of the following is the best interpretation of 0 6 H(t) dt?
(A) The temperature of the room, in degrees Celsius, at 6:00 A.M.
(B) The average temperature of the room, in degrees Celsius, between midnight and 6:00 A.M.
(C) The change in the temperature of the room, in degrees Celsius, between midnight and 6
(D) The rate at which the temperature in the room is changing, in degrees Celsius per hour, at 6:00 A.M.
It will represent the change in temperature between midnight and 6, the correct option is C.
Which is the best interpretation of ∫H(t)*dt?
H(t) is the rate at which the temperature changes. So, if we integrate H(t), we will get the change of temperature.
In this case, we have:
[tex]\int\limits^6_0 {H(t)} \, dt[/tex]
This will give the change in temperature between 6:00 AM (represented by the 6) and midnight (represented with the 0).
So the correct option is C.
If you want to learn more about integration, you can read:
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A 3.45
B 43.3
C 50
D 61.2
Answer: B
Step-by-step explanation:
HELP ASAP!! BRAINLIEST!!
Answer:
i) 2.3× 10⁻¹²
ii)2.3× 10¹⁰
iii)2.3× 10¹³
iv)2.3× 10⁻¹¹
Step-by-step explanation:
The degree and power depends on the position of the decimal. The degree of 10 is negative when the decimal is before 23 and is positive when it's after 23.
HELPP PLEASE FOR BRZINLEST!!!
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS
Answer:
(9, -8)
step-by-step explanation:
original coordinates of B: (-9, -8)if reflected over y-axis, use the formula: (x, y) → (-x, y)
new coordinates: (-(-9), -8) → (9, -8)Help me to answer this.
Answer:
A
Step-by-step explanation:
If UV=p+13 and RT=p–1, what is the value of p?
Answer: 15
Step-by-step explanation:
There are 40 people in a room. The ration of men to women is 2:3. If 5 more men enter the room, what will the new ratio be?
Answer:
16:29
Step-by-step explanation:
2u+3u=5u
40/5=8
Each unit represents 8 people
Hence, number of women:
8 x 2= 16
Number of men:
8 x 3 =24
New number of men:
24 + 5 = 29
New ratio:
16:29
Answer:
7 : 8 (men to women)
Step-by-step explanation:
Ratio = 2 : 3 (men to women)
40 people in all
40 / 5 = 8
2 x 8 = 16 (men)
3 x 8 = 24 (women)
16 + 5 = 21
21 : 24
7 : 8
Hope this helps!
(Let me know if I got something wrong!)
Work out 81.19 % of 283.84 cm Give your answer rounded to 2 DP.
Answer:
230.45
Step-by-step explanation:
81.19% × 283.84
= 0.8119 × 283.84
= 230.45
Answer:
230.45Step-by-step explanation:
Solving steps81.19 % of 283.84
Step 1: Find the percentage value
=> [tex] \frac{283.84}{1} \times \frac{81.19}{100}\\ [/tex]
=> [tex] \frac{23,044.9696}{100}\\ [/tex]
=> 230.449696Step 2: Round to 2 dp(decimal points)
=> 230.449696=> 230.45
A car leaving a stop sign accelerates constantly from a speed of 0 feet per second to reach a speed of 44 feet per second. The distance of the car from the stop sign, d, in feet, at time t, in seconds, can be found using the equation d=1.1t2.
What is the average speed of the car, in feet per second, between t=2 and t=5?
5.5
6.6
7.7
8.5
Answer:
7.7
Step-by-step explanation:
Answer:
7:7
Step-by-step explanation:
Identify the percent increase in total sales and the percent increase in sales of trench coats. then find which percent of increase is greater and by how much greater it is than the other. (round your answer to the nearest tenth.) a. sales of trench coats increased 0.7 percentage points faster than total coat sales. b. sales of trench coats increased 8.3 percentage points faster than total coat sales. c. total coat sales increased 2.5 percentage points faster than sales of trench coats. d. total coat sales increased 10.7 percentage points faster than sales of trench coats.
Answer:
0.7×8.3×2.5÷100×10.7
Step-by-step explanation:
0.7×8.3 =
10.7×2.5
all divided by 100
Answer:
it's B. 8.3
Step-by-step explanation:
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When a construction worker is on a platform 10 feet above the ground, we can describe her elevation as +10 feet.
A construction worker digs down to 30 feet below the platform. What is her elevation?
It is 30 feet BELOW the platform, so the number is -20 because the platform is 10 feet above ground level.
Her elevation is - 20 because she is 10 feet above ground level, which is 10, and she digs 30 feet down so 10 - 30 is -20.
Hope this helps. :)
Answer:
-20 feet
Step-by-step explanation:
Ok, if the construction worker is first at 10 feet above the ground. If the construction worker goes 30 feet below the platform, the equation can be this: 10 - 30 = e or elevation. Remember that it states that the construction worker digs 30 feet below the platform, and not below the ground. Because 10 - 30 is -20, we know that the construction worker's elevation is -20.
I hope this helps :)
In a certain town there were 171 robberies last year. This year the number of robberies has gone down 39%. How many robberies were there this year, to the nearest whole number?
Answer:
104 robberies
Step-by-step explanation:
No of robberies last year = 171
Robberies for this year reduced by 39%
Percentage robberies of this year reduced to 39%
39% * 171
= 39/100 * 171
= 66.09
That is to say that this year robberies reduced by 66.09
Therefore this year robberies = 171 - 66.09
= 104.31
= 104 to the nearest
whole number
NOTE: don't forget to put the approximation sign in the final answer
Asap! I’ll mark you brainlest
What does How many kilometers did Jon run?
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bob made 41/4 pounds of fruit salad he added 10 ounces of pineapple how many 6 ounce servings did bob make
The length of a rectangle is shown below: If the area of the rectangle to be drawn is 12 square units, where should points C and D be located, if they lie vertically below A and B, to make this rectangle? A. C(2, −2), D(−1, −2)
B. C(2, −1), D(−1, −1)
C. C(−2, 2), D(−2, −1)
D. C(−1, 2), D(−1, −1)
Answer:
A.
Step-by-step explanation:
Check out the image, hope it helps!
A Buffalo school district randomly tests its employees to determine how many have gotten the flu shot this season. Their sample shows that 15 of them have gotten it, and 27 have not. Estimate the true proportion of employees in the district who have gotten a flu shot, with a 90% confidence level. Check conditions to see if you can use normal sampling distribution for sample proportion
Using the z-distribution, as we are working with a proportion, the 90% confidence level estimate for the true proportion of employees in the district who have gotten a flu shot is (0.2355, 0.4784).
What is a confidence interval of proportions?As long as there are 10 successes and 10 failures in the sample, that is, [tex]n\pi \geq 10[/tex] and [tex]n(1 - \pi) \geq 10[/tex], a confidence interval of proportions is given by:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which:
[tex]\pi[/tex] is the sample proportion.z is the critical value.n is the sample size.In this problem, the parameters are:
[tex]n = 42, \pi = \frac{15}{42} = 0.3571, z = 1.645[/tex]
We have the [tex]n\pi = 15, n(1 - \pi) = 27[/tex], hence you can find the interval.
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3571 - 1.645\sqrt{\frac{0.3571(0.6429)}{42}} = 0.2355[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.3571 + 1.645\sqrt{\frac{0.3571(0.6429)}{42}} = 0.4787[/tex]
The 90% confidence level estimate for the true proportion of employees in the district who have gotten a flu shot is (0.2355, 0.4784).
More can be learned about the z-distribution at https://brainly.com/question/25890103
The questions are below! Best answer get brainliest! 50+ points!!
Poop answers get reported!!!
Be clear when answering!!!
1. 54
2. 4
3. 2
4. 60
5.46
Answer:
1. 54
2. 4
3. 2
4. 60
5.46
Mr. Robert is a real estate agent, he earns 5% commission of his total sales. If he sold a property for $135,000. How much commission did he receive?
Answer:
ok if I did this right the answer should be 675. sorry if it's wrong. I hope it's right.
The leg lengths of a right triangle are 4 cm and 6 cm. What is the length of the missing side?
Answer:
Step-by-step explanation:
What is the surface area of the square pyramid represented by the net?
Answer: 144m
Step-by-step explanation:
6x6=36
(9 x 3) x 1/2 = 13.5
13.5 x 8(bc there are 8 triangles) = 108
108 + 36 = 144
Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
Which line plot correctly shows the difference between the greatest and least practice times as three fourths hours? (1 point)
A line plot titled 'Piano Practice Times.' The bottom label is time in hours. The numbers on the line are zero, one fourth, one half, three fourths, one, one and one fourth, one and a half, one and three fourths, and two. There are two xs above three fourths, one x above one, three xs above one and a fourth, and one x above one and a half.
A line plot titled 'Piano Practice Times.' The bottom label is time in hours. The numbers on the line are zero, one fourth, one half, three fourths, one, one and one fourth, one and a half, one and three fourths, and two. There is one x above one half, two xs above three fourths, one x above one, two xs above one and one fourth, and one x above one and three fourths.
A line plot titled 'Piano Practice Times'. The bottom label is time in hours. The numbers on the line are zero, one fourth, one half, three fourths, one, one and one fourth, one and a half, one and three fourths, and two. There is one x above one half, one x above three fourths, two xs above one, one x above one and one fourth, one x above one and three fourths, and one x above two.
A line plot titled 'Piano Practice Times.' The bottom label is time in hours. The numbers on the line are zero, one fourth, one half, three fourths, one, one and one fourth, one and a half, one and three fourths, and two. There is one x above one fourth, one x above one half, one x above three fourths, one x above one, two xs above one and one fourth, and one x above two.
The line plot that shows the difference between the greatest and least practice times is D. A line plot titled 'Piano Practice Times.' The bottom label is time in hours.
What is a line plot?A line plot is a type of chart that displays information as a series of data points connected by straight line segments.
Here, the line plot that correctly shows the difference between the greatest and least practice times as three fourths hours is when the numbers on the line are zero, one fourth, one half, three fourths, one, one and one fourth, one and a half, one and three fourths, and two.
Learn more about line plot on:
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Find the volume of a right circular cone that has a height of 3.2 in and a base with a
diameter of 5.8 in. Round your answer to the nearest tenth of a cubic inch
Answer:
28.18, rounding it, it would be 28.2 cubic inches
Step-by-step explanation:
V=Pir^2(h/3)
An algebra tile configuration. only the product spot is shown. 9 tiles are in the product spot in 5 columns with 5 rows. first row: 1 x squared, 4 x. below the x squared tile are 4 x tiles. which value is needed in the expression below to create a perfect square trinomial? x2 8x ______ 4 8 16 64
We need 16 in the given expression to create a perfect square trinomial.
Let us say the given expression is:
[tex]x^{2} +8x +k^2[/tex]...............(1)
We can rewrite the above expression as:
[tex]x^{2} +2*x*4 +k^2[/tex].........(2)
What is (a+b) squared?The square of a+b is a²+2ab+b².
If we compare (2) with [tex]a^{2} +2ab+ b^{2}[/tex]
We get, a =x, b = 4 and k²=b²
Since b=4
So, k² =4²
k² =16
Put the value of k² in (1)
We get the expression [tex]x^{2} +8x +16[/tex]
Therefore, We need 16 in the expression [tex]x^{2} +8x+....[/tex]to create a perfect square trinomial.
To get more about polynomials visit:
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Answer: OPTION C aka 16
Step-by-step explanation:
3. Find the area of a trapezoid with bases 20 cm and 14 cm and height 5 cm.
Given :
Base = 20 cm and 14 cm.Height = 5 cm.To find :
Area of trapezoid.Solution :
We know,
[tex]{\qquad \dashrightarrow{ \bf{Area_{(Trapezoid)}= \dfrac{1}{2 } \times (b_{1} + b_{2}) \times h} }}[/tex]
Now, Substituting the values :
[tex]{\qquad \dashrightarrow{ \bf{Area_{(Trapezoid)}= \dfrac{1}{2 } \times (20 + 14) \times 5} }}[/tex]
[tex]{\qquad \dashrightarrow{ \bf{Area_{(Trapezoid)}= \dfrac{5}{2 } \times 34} }}[/tex]
[tex]{\qquad \dashrightarrow{ \bf{Area_{(Trapezoid)}= \dfrac{5}{ \cancel2 } \times \cancel{34}} }}[/tex]
[tex]{\qquad \dashrightarrow{ \bf{Area_{(Trapezoid)}=5 \times 17} }}[/tex]
[tex]{\qquad \dashrightarrow{ \bf{Area_{(Trapezoid)}=85} }}[/tex]
Therefore,
The area of the trapezoid is 85 cm² .Answer:
85cm²
Step-by-step explanation:
Here we are given a trapezium with base = 20cm and 14cm and height = 5cm . And we are interested in finding the area of the trapezium .
Figure :-
[tex]\setlength{\unitlength}{1.5cm}\begin{picture}\thicklines\qbezier(0,0)(0,0)(1,2.2)\qbezier(0,0)(0,0)(4,0)\qbezier(3,2.2)(4,0)(4,0)\qbezier(1.5,2.2)(0,2.2)(3,2.2)\put(0.8,2.4){$\bf A $}\put(3,2.4){$\bf D $}\put(-0.3,-0.3){$\bf B$}\put(4,-0.3){$\bf C$}\put(4.4,0){\vector(0,0){2.2}}\put( 4.4, 0){\vector(0,-1){0.1}}\put(4.6,1){$\bf 5\ cm$}\put(0, -0.5){\vector(1,0){4}}\put(0, -0.5){\vector( - 1, 0){0.1}}\put(1.7, - 0.9){$\bf 20\ cm $}\put(0.8, 2.8){\vector(1,0){2.5}}\put(0.8, 2.8){\vector( - 1, 0){0.1}}\put(1.7, 3){$\bf 14\ cm $}\end{picture} [/tex]
As we know that the area of trapezium is given by ,
[tex]\longrightarrow\rm Area =\dfrac{1}{2}(sum \ of \ || \ sides)\times height [/tex]
Here 20cm and 14cm are parallel sides .Substitute the respective values in stated formula,
[tex]\longrightarrow\rm Area =\dfrac{1}{2}(20cm +14cm)5cm \\[/tex]
Solve the parenthesis ,
[tex]\longrightarrow\rm Area =\dfrac{1}{2}\times (34cm)(5cm)[/tex]
Simplify by multiplying ,
[tex]\longrightarrow\rm \underline{\underline{\red{{Area = 85\ cm^2}}}}[/tex]
And we are done !
[tex]\rule{200}4[/tex]
The city of newport is expecting a budget deficit this year of $257,943, which is 30% less than last year. what was last year's deficit?
last year deficit x 0,70 = 257,943
so
last year deficit = 368,490
- 30% = x (1 - 30%) = x 0,70
determine if 2, 8 ,14 ,20 is an arithmetic sequence. If so find the common difference and the next three terms.
Answer:
D=8-2=6,14-8=6,20-14=6 ARE IN AP
Step-by-step explanation:
26,32,38
Luke tried to use Cavalieri's principle to show that the two figures have the same volume. The base areas are the same. Therefore, corresponding cross-sections have the same area. The prisms have the same height. So the volumes must be the same. What is the first mistake Luke made?
The error Luke made when trying to use Cavalieri's principle to show that the two figrues have the same volume is stating that: "corresponding cross-sections have the same area" which is NOT TRUE.
What is the Cavalieri's Principle?The Cavalieri's principle was named after Bonaventura Cavalieri. The Cavalieri's principle states the volume of two figures are the same if they have the same height and teh same cross-sectional area at every point along the height.
Thus, the two figures have entirely different cross-sectons. Their areas would be diffrent.
Therefore, the error Luke made when trying to use Cavalieri's principle to show that the two figrues have the same volume is stating that: "corresponding cross-sections have the same area" which is NOT TRUE.
Learn more about Cavalieri's principle on:
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Answer:
the height
Step-by-step explanation:
Answer from cadencewest69. thanks cadencewest69!!! :)
The equation of the line that passes through points (0, negative 7) and (2, negative 1) is shown below. What value is missing from the equation?
y = x – 7
Answer:
answer is y= -3x-7
Step-by-step explanation:
Answer:
3x-7
Step-by-step explanation: