you have a bottle of water with a leak. after 2 second,there are 28 ounces left in the bottle. after 6 seconds, there are 20 ounces left in the bottle. how fast is the bottle losing water
Answer:
rate of losing water = 8 ounce per 4 sec or 2 ounces per sec.
Step-by-step explanation:
Given : after 2 second,there are 28 ounces left in the bottle. after 6 seconds, there are 20 ounces left in the bottle.
To find : how fast is the bottle losing water.
Solution : WE have given that
After 2 second water left in bottle = 28 ounces.
After 6 second water left in bottle = 20 ounces.
We can see with in ( 6 - 2) ,4 second bottle lose their 8 ounce water.
Therefore, rate of losing water = 8 ounce per 4 sec or 2 ounces per sec.
PLZ HELP NOOOWWWW!!!! 15 points!
A sewing pattern calls for 1/2 meter of red ribbon and 1/5 meter of blue ribbon. What is the unit rate in meters of red ribbon per meter of blue ribbon?
Find the value of x.
Pls help
At one vehicle inspection station, 13 of 52 trucks and 11 of 88 cars failed the emissions test. assuming these vehicles were representative of the cars and trucks in that area, what is the standard error of the difference in the percentages of all cars and trucks that are not in compliance with air quality regulations?
[tex]SE=\sqrt{p(1-p)\left(\frac{1}{n_1}+\frac{1}{n_2}\right)}[/tex]
where p is the pooled sample proportion, [tex]n_1[/tex] is the size of sample 1, and [tex]n_2[/tex] is the size of sample 2.GETS BRAINLIEST AND 50 PTS!
The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diameter of each circle is 3 feet. Approximately, how many square feet of the turf needs to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth. 7.1 square feet 9.4 square feet 18.8 square feet 28.3 square feet
Rachel says that Graph R has a greater constant of variation that Graph S. Which statement explains whether Rachel is correct?
For this case we have that by definition the constant of variation of a line is given by the slope m, of said line.
Where:
[tex]m = \frac {(y_ {2} -y_ {1})} {(x_ {2} -x_ {1})}[/tex]
To find the slope of a line it is necessary to find two points through which the line passes.
To solve the given problem, we find the slopes of the lines shown in the graphics R and S:
Graphic R:
It is observed that the line passes through the following points:
[tex](x_ {1}, y_ {1}) = (0,0)\\(x_ {2}, y_ {2}) = (2,1)[/tex]
Substituting in the formula of the slope we have:
[tex]m_ {R} = \frac {(y_ {2} -y_ {1})} {(x_ {2} -x_ {1})}[/tex]
[tex]m_ {R} = \frac {1-0} {2-0}[/tex]
[tex]m_ {R} = \frac {1} {2}[/tex]
Thus, the slope of the line of the graph R is given by: [tex]m_ {R} = \frac {1} {2}[/tex]
Graphic S:
It is observed that the line passes through the following points:
[tex](x_ {1}, y_ {1}) = (0,0)\\(x_ {2}, y_ {2}) = (1,2)[/tex]
Substituting in the formula of the slope we have:
[tex]m_ {S} = \frac {(y_ {2} -y_ {1})} {(x_ {2} -x_ {1})}[/tex]
[tex]m_ {S} = \frac {2-0} {1-0}[/tex]
[tex]m_ {S} = \frac {2} {1}[/tex]
[tex]m_ {S} = 2[/tex]
Thus, the slope of the line of the graph R is given by: [tex]m_ {S} = 2[/tex]
[tex]m_ {S}> m_ {R}[/tex]
then, the graph S has a variation constant greater than the graph R.
Answer:
The graph S has a variation constant greater than the graph R.
Rachel's idea is wrong
Answer:
It’s D
Step-by-step explanation:
Write parametric equations of the line 2x-y=3
Answer: The required parametric equation is y=2t-3.
Step-by-step explanation:
Since we have given that
2x+-y=3
We need to rewrite in parametric equation:
The parametric equation is written as
[tex]f(x)=y=at+b[/tex]
So, Arranging the given equation in the above equation, we get
[tex]2x-y=3\\\\2x-3=y\\\\f(x)=y=2x-3[/tex]
And then put x = t, to get the exact parametric form.
Hence, the required parametric equation is y=2t-3.
The sales of lawn mowers t years after a particular model is introduced is given by the function y = 5500 In(9t+4), where y is the number of lawn mowers sold. How many mowers will be sold 4.5 years after a model is introduced? Round your answer to the nearest whole number. Show your work to find the number of mowers for credit.
Sometimes one form is more beneficial than the other. Identify which form would be more helpful if you needed to do each task listed below and explain why. a. Factor the equation. b. Graph the parabola. c. Identify the vertex, minimum, or maximum of the parabola. d. Solve the equation using the quadratic formula.
when Derek planted a tree it was 36 inches tall the tree grew one and one fourth inches per year the tree is now forty four and three fourths how many years ago did Derek plant the tree
Answer:
7
Step-by-step explanation:
Figure out all the fractions in decimal form
44 3/4= 44.75
1 1/4= 1.25
Subtract:
44.75- 36= 8.75
Divide:
8.75/1.25= 7
The answer therefore is 7!
Hope this helps!!!
In a class of 147 students, 95 are taking math(m), 75 are taking science (s), 52 are taking both math and science. What is the probability of randomly choosing a student who is taking neither math nor science? Round your answer to the nearest tenth
Answer:
31/147
Step-by-step explanation:
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Chris Shopper received a $1,000 discount loan to purchase a washer and dryer. The loan was offered at 12% for 120 days. What are the proceeds? $40.00 $144.00 $960.00 $1,440.00
Answer:
The correct answer is 960.
Step-by-step explanation:
120/360=0.333
Remember to use 360 because a bank year is 360 days.
Then you use the interest formula:
I= P×R×T
I=1000×0.12×0.333
39.99=I
Now take 1000 because your principal is 1000, and subtract that from 1000
1000-39.99=960
Consider the graphs f(x) = log10x and g(x) = a · log10x.
What happens to the graph of g(x) = a · log10x if a is –7? Check all that apply.
a.The graph is stretched vertically.
b.The graph will shift a units to the right.
c.The graph is compressed.
d.The graph is reflected across the x-axis.
e.The graph will shift a units to the left.
What is the mode of the following numbers? 8,10,10,10,6,7,8
The mode is the number that appears most frequently in a data set.
In the data set shown here, 10 appears more time than any other number which means that 10 is the mode.
Therefore, the mode of the data set shown here is 10.
The hyperbola with center at (4, 5), with vertices at (0, 5) and (8, 5), with b = 2.
Answer:
Step-by-step explanation:
The correct answer is (x-4)^2/16 - (y-5)^2/4 = 1
You earn $20.00 per hour at your job. If you get a 10% raise at the end of each year, what will your hourly rate, h, be after 8 years? Use the equation h=C(l+r)^t, where C is the beginning hourly rate, r is the growth rate, and t is time in years. A. $36.00 B. $22.00 C. $47.27 D. $42.87
Given the following functions f(x) and g(x), solve (f ⋅ g)(2) and select the correct answer below: (1 point)
f(x) = 2x2 − 10
g(x) = x + 9
−22
22
−66
66
Answer:
-22
Step-by-step explanation:
Give other person brainliest
Brady has collected the following data. 11, 15, 15, h, 11. If the range of Brady's data is 9, what is the value of h?
To solve this question, let's start by understanding what the range of a data set means. The range is the difference between the highest value and the lowest value in the set.
Given that the range of Brady's data is 9, and we have the following data points: 11, 15, 15, h, 11, we can use this information to determine the value of h.
1. Identify the smallest value in the data set (without considering h for now). The smallest value given is 11.
2. Identify the largest value in the data set (without considering h for now). The largest value given is 15.
3. Since the range of the data is 9, we can calculate what the new highest and lowest value could be if h were to be the extremum.
If h were the largest value, then:
h - smallest value = 9
h - 11 = 9
h = 9 + 11
h = 20
If h were the smallest value, then:
largest value - h = 9
15 - h = 9
h = 15 - 9
h = 6
4. Now that we have two potential values for h (20 if it’s the maximum, and 6 if it’s the minimum), we have to decide which value is correct. Remember that the range is the difference between the largest and smallest values, so whichever potential value of h does not coincide with a number already in the data set is likely the correct value.
Since the current largest value in the data set without h is 15, and the current smallest value is 11, using h = 20 would yield a new range greater than 9 (20-11 = 9), and using h = 6 would also yield a range greater than 9 (15-6 = 9). But we are only looking for an existing range of 9. Thus, we must consider whether 20 or 6 would form a range of exactly 9 with the current set of numbers.
- If h = 20, it would become the new largest number and the range would be simply h - smallest value, which is 20 - 11 = 9, which is correct.
- If h = 6, it would become the new smallest number and the range would be largest value - h, which would be 15 - 6 = 9, which is also correct.
In this case, both h = 20 and h = 6 satisfy the condition for the range to be 9. However, we should look at the data set to see which data point (h) is not already present because the range should be the difference of two distinct (unique) data points.
In examining the given data set, we see that we already have a smallest value of 11 and a largest value of 15.
To maintain the range of 9 with the given data (without h), h could take on either the value which provides a max-min of 9 and is not already in the data set. In this scenario, both potential values 6 and 20 meet the criteria, since neither is present in the original data set.
Therefore, Brady’s h can be either 6 or 20 and still satisfy the given conditions.
5y^2 - 2y - 7 are (5y - 7) and ( )
For what values of m does the graph of y = mx2 – 5x – 2 have no x-intercepts?
Answer: The graph of y=mx^2-5x-2 have no x-intercepts for m<-25/8
Solution:
y=mx^2-5x-2
To find x-intercepts we must equal y to zero:
y=0→mx^2-5x-2=0
This is a quadratic equation, and we can solve it using the quadratic formula:
ax^2+bx+c=0; a=m, b=-5, c=-2
x=[-b +- sqrt( b^2-4ac) ] / (2a)
x=[-(-5) +- sqrt( (-5)^2-4(m)(-2) ) ] / (2(m))
x=[5 +- sqrt(25+8m)] / (2m)
This equation doesn't have solution (no x-intercepts) if:
25+8m<0
This is an inequality. Solving for m: Subtracting 25 both sides of the inequality:
25+8m-25<0-25
8m<-25
Dividing both sides of the inequality by 8:
(8m) / 8 < (-25) / 8
m<-25/8
Answer: The graph of y=mx^2-5x-2 heve no x-intercepts for m<-25/8
hello can you please help me posted picture of question
SOMEONE PLEASE HELP ASAP
Decide whether to reject h 0 for the level of significance ΅ . right - tailed test z = 1.43 ΅ = 0.05 22) the p - value for a hypothesis test is p = 0.006. do you reject or fail to reject h 0 when the level of significance is ΅ = 0.01? 23) find the p - value for the hypothesis test with the standardized test statistic z. decide whether to reject
To decide whether to reject H0 for the level of significance ΅ in a right-tailed test, we compare the p-value to the level of significance. In this case, the p-value for the hypothesis test is 0.006 and the level of significance is 0.01. Since the p-value (0.006) is less than the level of significance (0.01), we reject H0.
Explanation:To decide whether to reject H0 for the level of significance ΅ in a right-tailed test, we compare the p-value to the level of significance. In this case, the p-value for the hypothesis test is 0.006 and the level of significance is 0.01. Since the p-value (0.006) is less than the level of significance (0.01), we reject H0.
For the second question, the p-value is not provided, so we cannot make a decision based on the information given.
300 minutes equals how many hours
Which of these is a point-slope equation of the line that is perpendicular to y-25=2(x-10) and passes through (-3,7)
Answer: y - 7= -1/2 (x+3)
Step-by-step explanation:
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Steve puts only dimes and quarters into his piggy bank. Right now he has five more dimes than quarters there, and they make exactly $74! How many quarters and how many dimes are there in Steve’s piggy bank?
Answer:
215 dimes and 210 quarters
Step-by-step explanation:
Quarters are x
dimes are x+5
.25x+.10(x+5)=74
.25x+.10x+.5=74
.35x=73.5
x=210 quarters or $52.50
x+5=215 dimes or $21.50
Add to $74.
The pyramid shown has a square base that is 14 centimeters on each side. The slant height is 15 centimeters. What is the surface area of the pyramid?
Anwar says that the shape below is a parallelogram. is he correct that a kite is a parallelogram explain
Which of the following are examples of exponential decay?
Answer: B,C,D
Step-by-step explanation: