It will take Omari 7 months to pay off the computer.
What is a percentage?
Percentages are essentially fractions where the denominator is 100. To show that a number is a percent, we use the percent symbol (%) besides the number. For example, if you got 75 questions right out of 100 on a test (75/100), you would have scored 75%.
To find the amount of the down payment, multiply the price of the computer by the down payment percentage:
down payment = $1,099 * 20% = $219.80
The remaining balance on the computer after the down payment is:
remaining balance = $1,099 - $219.80 = $879.20
To find the total number of months it will take Omari to pay off the computer, divide the remaining balance by the monthly payment:
total months = $879.20 / $144/month = 6.1 months
Since it is not possible to have a fraction of a month.
Hence, it will take Omari 7 months to pay off the computer.
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A box has a width of 10 cm and a length of 17 cm. The volume of the box is decreasing at a rate of 527 cubic cm per minute, with the width and length being held constant. What is the rate of change, in cm per minute, of the height when the height is 6 cm?
Round your answer to the nearest hundredth. (Do not include any units in your answer.)
Therefore, the rate of change, in cm per minute, of the height when the height is 6 cm is approximately -6 cm/min.
Given,The width of the box = 10 cm Length of the box = 17 cmThe volume of the box = 527 cubic cm/minWe need to find the rate of change, in cm per minute, of the height when the height is 6 cm.We know that the volume of the box is given as:V = l × w × h where, l, w and h are length, width, and height of the box respectively.It is given that the width and length are being held constant.
Therefore, we can write the volume of the box as
:V = constant × h Differentiating both sides with respect to time t, we get:dV/dt = constant × dh/dtNow, it is given that the volume of the box is decreasing at a rate of 527 cubic cm per minute.
Therefore, dV/dt = -527.Substituting the given values in the above equation, we get:
527 = constant × dh/dt
We need to find dh/dt when h = 6 cm.To find constant, we can use the given values of length, width and height.Substituting these values in the formula for the volume of the box, we get:
V = l × w × hV = 17 × 10 × hV = 170h
We know that the volume of the box is given as:V = constant × hSubstituting the value of V and h, we get:
527 = constant × 6 cm
constant = 87.83 cm/minSubstituting the values of constant and h in the equation, we get
-527 = 87.83 × dh/dtdh/dt = -6.0029 ≈ -6 cm/min
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Write an equation for the line parallel to the line -7x - 7y= 7 through the point (-1,2)
Answer:
\(y=-x+1\)
Step-by-step explanation:
Slope-Intercept Formula:It helps to write the equation in slope-intercept formula to find the slope of an equation in the form: \(y=mx+b\) where "m" is the slope of the equation. We can take the equation given: \(-7x-7y=7\) and solve for "y" to get the equation in slope-intercept form:
\(-7x-7y=7\)
add 7x to both sides:
\(-7y=7x+7\)
Divide both sides by -7
\(y=-x-1\)
Now in this form we can tell that the coefficient of "x" (the m value) is our slope, which is -1. We need this slope to determine a parallel line as parallel lines share the same slope but different y-intercepts. So a general equation for a parallel line would be:
\(y=-x+b\text{ where b }\ne -1\)
We're given the point (-1, 2) and we can use it to solve for that "b" value.
We plug in -1 as x and 2 as y
\(2=-1(-1)+b\implies 2=1+b\implies 1=b\)
Now we just plug this into the general equation to get: \(y=-x+1\)
Sarah rides her bike with a
constant speed of 15 km/h. How
far can she travel in 6.8 hours?
Multiply 15 and 6.8. So speed * time = distance
So the answer is 102
A builder buys 27.5 acres of land to develop a new community of homes and parks.
IS
Part 1
Х
The builder plans to use 0.75 of the land for a park. How many acres will he use for the park?
He will use 20.625
acres for the park.
Part 2 out of 2
He buys a second property that has 0.78 times as many acres as the first property. How many acres of
land are in the second property?
The second property has
acres of land,
✓ Check
Next
The amount of the area of the home used and the total area of the second property are 26.25 acres and 20.625 acres respectively.
Total land area = 27.5 acres Amount of land used for park = 0.75 acresThe amount of land to be used for a home is the difference between the total land area and the area to be used for land :
27.5 acres - 0.75 acres = 26.25 acresLand Area of second property = 0.78 times the land ares
Second property = 27.5 × 0.78 = 20.625 acresTherefore, the total area of the second property is 20.625 acres.
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Simplify: 4x + (−6x)
Answer: -2x
Step-by-step explanation:
4x+(-6x)
When there is a + in front of an expression in a parentheses, the expression remains the same.
4x-6x
Collect like terms
-2x
question that have not been answered
Answer: what do you mean
Step-by-step explanation:
PLEASE HELP FAST!! IT IS URGENT!! Some stores print multiple coupons and advertisements on their receipts, making the receipts unusually long. A curious shopper makes the same purchase at a random sample of 10 stores and measures the length of each receipt (n inches). Here are the results: 8.25, 7.5, 5, 9.5, 12, 5.5, 9, 14, 11.5, 18 Are the conditions for cons tructing at confidence interval met?
O No, the random condition is not met.
O No, the 10% condition is not net.
O No, the Normal/large sanple condition is not met.
O Yes, the conditions for inference are met.
Answer:
No, the Normal/large sample condition is not met. A confidence interval assumes that the underlying population follows a normal distribution and that the sample size should be at least 30. Since the sample size in this case is only 10, the Normal/Large Sample condition is not met and the conditions for constructing a confidence interval are not met.
GIVING BRAINLIEST IF U ANSWER
Answer:
3/10
Step-by-step explanation:
There are a total of three people. 1/2 of the blueberry pie plus 2/5 of the apple pie is equal to 9/10 of a whole pie. Divide that by 3 and each person gets 3/10 of pie.
Let \(f(x)=2(3)^x^+^1\). Evalulate \(f(2)\) without using a calculator. Do not include \(f(2)\) in your answer.
\(f(x)=2(3)^{x+1} \\\\[-0.35em] ~\dotfill\\\\ f(2)=2(3)^{(2)+1}\implies f(2)=2(3)^3\implies f(2)=2(3^3) \\\\\\ f(2)=2(27)\implies f(2)=54\)
Hello! Could someone please help explain how to solve this to me please and an answer would be nice! Thanks! :)
if we notice the tickmarks on the triangle, we can see the all sides are equal, namely is an equilateral triangle, and if all sides are equal, then all interior angles are equal as well.
Let's recall that the sum of all interior angles in a triangle is 180°, now if we divide that by 3, that gives us 60, namely each angle in the equilateral triangle is 60°, that means
\(10x=60\implies x=\cfrac{60}{10}\implies \boxed{x=6} ~\hfill 12y=60\implies y=\cfrac{60}{12}\implies \boxed{y=5}\)
please help
There are 2 answers for this (use a comma to separate them)
Emma got 90% of the questions on her history test correct if she answered 27 questions correctly, how many questions did Emma get wrong?
There were (A) questions on the test so she got (B) questions wrong
Step-by-step explanation:
we can make it as a ratio
90/100=27/total Q
total Q= (27*100)/90=30
So wrong questions=30-27=3
hope this helps!
Solve for each variable.
a = ___
b = ___
c = ___
d = ___
Answer:
a=55°
b=123°
c=55°
d=123°
Emily go out to dinner eight times a month the average cost is $35 per meal how much does she spend each month? How much cause she save if she cut back to five times a month?
Answer:
She spend $280 a month when she goes out to eat 8 times a month.
She will save $105 a month if she cuts back to 5 times a month.
Step-by-step explanation:
35 x 8= 280
35 x 5 = 175
280 - 175 = 105
Answer:
8 * $35 per meal = $280
She spends $280 per month for 8 dinners$280 - (5 * $35)
= $280 - ($175)
= $105
Therefore, Emily will save $105 if she eats 5 times a month only.Step-by-step explanation:
heart and star pls <3 brainliest will be appreciated <3(っ◔◡◔)っ -{ elyna s }-During quarantine your goal was to do a total of 36 pull-ups and push ups in a minute. You end up doin 8 times as many push-ups as pull-ups. How many pull-ups and push-ups did you complete in a minute?
Answer:
36 times 8 = 288
A rock is thrown upward with a velocity of 21
meters per second from the top of a 22
meter high cliff, and it misses the cliff on the way back down. When will the rock be 9
meters from ground level? Round your answer to two decimal places.
Let's start by using the formula for the height of an object thrown upward:
h(t) = -0.5gt^2 + v0t + h0
where:
h(t) is the height of the object at time t
g is the acceleration due to gravity (9.8 m/s^2)
v0 is the initial velocity (21 m/s)
h0 is the initial height (22 m)
We want to find the time t when the rock is 9 meters from ground level. So, we can set h(t) equal to 9 meters and solve for t:
9 = -0.5(9.8)t^2 + 21t + 22
Rearranging this equation, we get:
0.5(9.8)t^2 - 21t - 13 = 0
Using the quadratic formula, we can solve for t:
t = [21 ± sqrt(21^2 - 4(0.5)(9.8)(-13))] / (2(0.5)(9.8))
t ≈ 2.41 seconds or t ≈ 4.01 seconds
We want the time when the rock is 9 meters from ground level on the way down, so we need to choose the larger value of t. Therefore, the rock will be 9 meters from ground level about 4.01 seconds after it was thrown upward.
PLEASE HELP
The table of values represents an exponential function.
What is the y-coordinate of -3f(x-1) when x = 0
Enter your answer in the box.
SEE PHOTO
The y-coordinate of -3f(x-1) when x = 0 is -63
What is the y-coordinate of -3f(x-1) when x = 0From the question, we have the following parameters that can be used in our computation:
The table of values
So, we have
-3f(x - 1)
When x = 0, we have
y = -3f(0 - 1)
This gives
y = -3f(-1)
From the table, we have
y = -3 * 21
Evaluate
y = -63
Hence, the y-coordinate is -63
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Graph the equation. y = − 5/4 ( x − 1 ) ( x + 3 )
last week a worm was 10 millimeters long. This week it is 13 millimeters long. What is the percent of increase of the worm's length from last week to this week?
Answer:
23% increase
Step-by-step explanation:
13 - 10 = 3
3/13 = 0.2307 = 23%
Hope that helped!!! k
Please help I need this will give 100 points please help
The solution to the inequality f(x²-2) < f(7x-8) over D₁ = (-∞, 2) is:
-∞ < x < 1 or 1 < x < 6 or 6 < x < 2
Solving Inequality in a given domainGiven the inequality,
f(x²-2) < f(7x-8) over D₁ = (-∞, 2)
We need to find the values of x that satisfy this inequality.
Since we know that f is increasing over its domain, we can compare the values inside the function to determine the values of x that satisfy the inequality.
First, we can find the values of x that make the expressions inside the function equal:
x² - 2 = 7x - 8
Simplifying, we get:
x² - 7x + 6 = 0
Factoring, we get:
(x - 6)(x - 1) = 0
So the values of x that make the expressions inside the function equal are x = 6 and x = 1.
We can use these values to divide the domain (-∞, 2) into three intervals:
-∞ < x < 1, 1 < x < 6, and 6 < x < 2.
We can choose a test point in each interval and evaluate
f(x² - 2) and f(7x - 8) at that point. If f(x² - 2) < f(7x - 8) for that test point, then the inequality holds for that interval. Otherwise, it does not.
Let's choose -1, 3, and 7 as our test points.
When x = -1, we have:
f((-1)² - 2) = f(-1) < f(7(-1) - 8) = f(-15)
Since f is increasing, we know that f(-1) < f(-15), so the inequality holds for -∞ < x < 1.
When x = 3, we have:
f((3)² - 2) = f(7) < f(7(3) - 8) = f(13)
Since f is increasing, we know that f(7) < f(13), so the inequality holds for 1 < x < 6.
When x = 7, we have:
f((7)² - 2) = f(47) < f(7(7) - 8) = f(41)
Since f is increasing, we know that f(47) < f(41), so the inequality holds for 6 < x < 2.
Therefore, the solution to the inequality f(x²-2) < f(7x-8) over D₁ = (-∞, 2) is:
-∞ < x < 1 or 1 < x < 6 or 6 < x < 2
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what are two numbers whose product is 52 and whose sum is 11?
Answer:
There are no two numbers whose product is 52 and whose sum is 11.
Step-by-step explanation:
give the 1st number is x and the 2nd number is y, then
x + y = 11 and xy = 52
x + y = 11 => y = 11 - x
x(11 - x) = 52
11x - x^2 = 52
=> x^2 - 11x + 52 = 0
Using quadratic formula: ax^2 + bx + c = 0
with a = 1, b = -11, c = 52
=> x = [-b ± √(b^2 - 4ac)]/2a
=> x = [-(-11) ± √((-11)^2 - 4x1x52)]/2x1
=> x = [11 ± √(121 - 208)]/2
=> x = [11 ± √(-87)]/2
Since the square root of a negative number is not a real number, there are no real solutions to this equation. Therefore, there are no two numbers whose product is 52 and whose sum is 11.
Prove ABCD is a parallelogram by showing both pairs of opposite sides are parallel, given the following points. Show all work!!! HELP PLEASEE
The prove that the angle ABCD is said to be a parallelogram that shows both pairs of opposite sides as parallel figure is given below.
What is the parallelogram about?The four points in the shape above are : A, B, C, D.
Where
A = (-2,-4)
B = (1,2)
C = (2,10)
D = (-1,4)
We place or sit vector AB with vector DC and vector AD with vector BC
and so we find and place their coordinates.
vector AB (1-(-2), 2-(-4))
vector DC (2-(-1),10-4)
vector AD (-1-(-2), 4-(-4))
vector BC (2-1,10-2)
So we obtained:
vector AB (3,6)
vector DC (3,6)
vector AD (1,8)
vector BC (1,8)
Next step is to calculate for the lengths :
AB= \(\sqrt{3^{2} + 6^{2} }\) DC= \(\sqrt{3^{2} + 6^{2} }\)
Thus, AB = DC
AD = \(\sqrt{1^{2} + 8^{2} }\) BC =\(\sqrt{1^{2} + 8^{2} }\)
Hence one can say that AD is equal to BC.
Therefore, angle ABCD IS known to be a parallelogram .
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An elevator in a tall building goes up 7 floors then down 9 floors down 4 floors up 8 floors and down 2 floors now it it in floor 14 on what floor did the elevator start
Answer: I'm pretty sure its 14.
Step-by-step explanation: 14 + 7 - 9 - 4 + 8 - 2 = 14
Suppose you are going to roll a fair; six-sided die J number of times and record the proportion of times that an even number (2. 4.or 6) is showing: Your first experiment used 60 rolls. but in your second experiment you used 240 rolls. For the second experiment, how is the center and spread of the sampling distribution different from the first experiment? Bolh the center and !he sprcad wIll decrease: Thc cenler will remain lhc sainc: bul thc sprcad will decrease Bolh the cenler and the spread wlll renain thic: salne The cenler will remain the >alne; bul tlic sprcad wvill lncicase:
From the sampling distribution, the correct answer is: Both the center will remain the same, but the spread will decrease.
How is the center and spread of the sampling distribution different from the first experimentThe center of the sampling distribution will remain the same, which is the expected proportion of even numbers showing on a single roll of the die, which is 1/2 or 0.5. This is because the probability of getting an even number on a single roll of the die does not change with the number of rolls in the experiment.
However, the spread of the sampling distribution will decrease as the number of rolls increases. This is because the larger the sample size, the more precise our estimate of the proportion of even numbers showing on each roll of the die will be. With more rolls, we will have a better idea of the true proportion of even numbers that the die produces.
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2. Kasie lives in Seattle. She can see her house from the observation deck of the Seattle Space Needle. The
observation deck is 520 feet above the ground and the angle of depression from the deck to her house
is 70. What is the direct distance from the base of the Space Needle to Kasie's house? Round your
answer to the nearest foot.
Direct distance from the base of the Space Needle to Kasie's house = 1429 feet.
What is angle of depression?The angle of depression is the angle between the horizontal line and the observation of the object from the horizontal line. It is basically used to get the distance of the two objects where the angles and an object's distance from the ground are known to us.
Given,
Height of the observation deck AB = 520 feet
Angle of depression = 70°
Distance of the Space needle base to house BC = ?
By the figure,
tan70° = AB/BC
BC = tan70°(AB)
BC = 2.7475(520)
BC = 1428.7 feet
Distance of the Space needle base to house to nearest foot = 1429 feet
Hence, 1429 feet is the distance between base of the Space Needle to Kasie's house.
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Choose the letter of the equation for
the graph.
KIN
2
a. y =
sin x + 2
b. y = cos x + 2
c. y = cos(x - π)
d. y =
sin(x - π)
e. y = sin(x + π/2)
Enter
Answer:
a
Step-by-step explanation:
The midline is at y=2.
Eliminate c, d, e
Also, since there is no horizontal shift amongst the remaining options, we know that since y=2 when x=0, this means it must be a sine curve.
This means the answer is a.
A sample of bacteria is decaying according to a half-life model. If the sample begins with 700 bacteria, and after 13 minutes there are 630 bacteria, after how many minutes will there be 20 bacteria remaining?
When solving this problem, round the value of k to four decimal places and round your final answer to the nearest whole number
The number of minutes for 20 bacteria be left is 439minutes. The decay constant is 0.0081
What is exponential function?An exponential function is a mathematical function, which is used in many real-world situations. It is mainly used to find the exponential decay or exponential growth or to compute investments, model populations and so on.
The No of bacteria left at a particular time t is given as N(t)= Noe^-kt
where No= initial number of bacteria
k= decay constant and t = time
after 13 minutes
630= 700e^-13k
divide both sides by 700
630/700= e^-13k
0.9= e^-13k
ln0.9= -13k
k= ln0.9/-13 = -0.1054/-13 = 0.0081
time for 20 bacteria to be left =
20= 700e^-0.0081t
= 20/700=e^-0.0081t
0.0286= e^-0.0081t
ln0.0286= -0.0081t
-3.554= -0.0081t
divide both sides by -0.0081
t= -3.554/-0.0081= 439 minutes ( nearest minutes)
therefore the time for the bacteria to be left is 439minutes
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When a lilac bush is planted, it is 24 inches tall. Each month, it grows 6 inches taller. How tall will It get over time?
Dependent variable: ______
Independent variable: ______
Equation: ______
Answer:
Dependent variable: time(months) or \(t\)
Independent variable: 6
Step-by-step explanation:
\(h=24+6t\)
(h=height)
For the following telescoping series, find a formula for the nth term of the sequence of partial sums {Sn}. Then evaluate limn→[infinity]Sn to obtain the value of the series or state that the series diverges.
1) ∑[infinity]k = 1(1/k + 1 - 1/k + 2).
2) ∑[infinity]k = 1(1/(k + 6)(k + 7).
Answer:
The following are the solution to the given points:
Step-by-step explanation:
Given value:
\(1) \sum ^{\infty}_{k = 1} \frac{1}{k+1} - \frac{1}{k+2}\\\\2) \sum ^{\infty}_{k = 1} \frac{1}{(k+6)(k+7)}\)
Solve point 1 that is \(\sum ^{\infty}_{k = 1} \frac{1}{k+1} - \frac{1}{k+2}\\\\\):
when,
\(k= 1 \to s_1 = \frac{1}{1+1} - \frac{1}{1+2}\\\\\)
\(= \frac{1}{2} - \frac{1}{3}\\\\\)
\(k= 2 \to s_2 = \frac{1}{2+1} - \frac{1}{2+2}\\\\\)
\(= \frac{1}{3} - \frac{1}{4}\\\\\)
\(k= 3 \to s_3 = \frac{1}{3+1} - \frac{1}{3+2}\\\\\)
\(= \frac{1}{4} - \frac{1}{5}\\\\\)
\(k= n^ \to s_n = \frac{1}{n+1} - \frac{1}{n+2}\\\\\)
Calculate the sum \((S=s_1+s_2+s_3+......+s_n)\)
\(S=\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+\frac{1}{4}-\frac{1}{5}+.....\frac{1}{n+1}-\frac{1}{n+2}\\\\\)
\(=\frac{1}{2}-\frac{1}{5}+\frac{1}{n+1}-\frac{1}{n+2}\\\\\)
When \(s_n \ \ dt_{n \to 0}\)
\(=\frac{1}{2}-\frac{1}{5}+\frac{1}{0+1}-\frac{1}{0+2}\\\\=\frac{1}{2}-\frac{1}{5}+\frac{1}{1}-\frac{1}{2}\\\\= 1 -\frac{1}{5}\\\\= \frac{5-1}{5}\\\\= \frac{4}{5}\\\\\)
\(\boxed{\text{In point 1:} \sum ^{\infty}_{k = 1} \frac{1}{k+1} - \frac{1}{k+2} =\frac{4}{5}}\)
In point 2: \(\sum ^{\infty}_{k = 1} \frac{1}{(k+6)(k+7)}\)
when,
\(k= 1 \to s_1 = \frac{1}{(1+6)(1+7)}\\\\\)
\(= \frac{1}{7 \times 8}\\\\= \frac{1}{56}\)
\(k= 2 \to s_1 = \frac{1}{(2+6)(2+7)}\\\\\)
\(= \frac{1}{8 \times 9}\\\\= \frac{1}{72}\)
\(k= 3 \to s_1 = \frac{1}{(3+6)(3+7)}\\\\\)
\(= \frac{1}{9 \times 10} \\\\ = \frac{1}{90}\\\\\)
\(k= n^ \to s_n = \frac{1}{(n+6)(n+7)}\\\\\)
calculate the sum:\(S= s_1+s_2+s_3+s_n\\\)
\(S= \frac{1}{56}+\frac{1}{72}+\frac{1}{90}....+\frac{1}{(n+6)(n+7)}\\\\\)
when \(s_n \ \ dt_{n \to 0}\)
\(S= \frac{1}{56}+\frac{1}{72}+\frac{1}{90}....+\frac{1}{(0+6)(0+7)}\\\\= \frac{1}{56}+\frac{1}{72}+\frac{1}{90}....+\frac{1}{6 \times 7}\\\\= \frac{1}{56}+\frac{1}{72}+\frac{1}{90}+\frac{1}{42}\\\\=\frac{45+35+28+60}{2520}\\\\=\frac{168}{2520}\\\\=0.066\)
\(\boxed{\text{In point 2:} \sum ^{\infty}_{k = 1} \frac{1}{(n+6)(n+7)} = 0.066}\)
The formula c(x) = 0.45 +0.2(x - 1) can be used to find the cost of mailing a letter that
weighs 2 ounces or more. Find the formula for
c'(x)
Answer:
Step-by-step explanation:
Remark.
I take it that this is a calculus question question.
Expand c(x)
c(x) = 0.45 + 0.2x - 0.2 Combine
c(x) = 0.25 + 0.2x/dx
c(x) = 0.2
The new York Roangers team won 3/4 of their games last season. If they lost, 21 games did they play in the entire season