Answer:
>
Step-by-step explanation:
We can rewrite the compound fractions to get 5/4 * 11/5
Multiply these to 55/20
Now let's look at the other side
5/6 * 11/5 = 55/30
Since the numerators are the same but the denominators are different, the fraction with the lower denominator is greater
55/20 > 55/30
Hope this helps
what is the product of -2 1/4 and -4 1/2
Answer:
i think 6 5/8
Step-by-step explanation:
So distribute
-2*-4+-2*1/2=7 1/2
1/4*-4+1/4*1/2=-7/8
7 4/8 - 7/8 is 6 5/8
What is 3v + w + 8 - 2v + 2 simplified?
Malia needs to spend at least 80 hours in swim practice this month. Her events are backstroke and freestyle.
Graph the inequality that represents Malia's practice situation.
Answer:
i dont really know im only in 7th grade but if i did you would be the first one id answer to :D
Step-by-step explanation:
The inequality that represents the situation is x + y ≥ 80 , It has been plotted and attached with the answer.
What is an Inequality ?An Inequality is a mathematical statement used to relate two algebraic expression using an inequality operator.
It is given that
Malia needs to spend at least 80 hours in swim practice this month.
Her events are backstroke and freestyle.
Let x represents time given for practising backstroke.
Let y represents time given for practising freestyle.
Then as asked the inequality that represents the situation is
x + y ≥ 80
This inequality has been plotted and attached with the answer.
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An online retailer wants to study whether more lenient return policies increase purchasing behaviors. They
select a random sample of 2000 customers who have made purchases in the past year.
They use a random number generator to select 1000 customer account numbers to assign to the treatment
group. The remaining 1000 customers are assigned to the control group.
What type of experiment design is this?
A) randomized block
B) stratified
C) completely randomized
D) marched pairs
E) cluster
Answer: Completely Randomized
Step-by-step explanation:
effect of one primary factor rather than many different variables
As per the question the retailer wants to study the return policy that can increase the buying behavior and selects a random sample of 2000.
He uses matched pair of designs in his experiment design in which participants of the same traits get grouped in pairs. After which within each pair, one participant gets randomly allotted to either the treatment, and the other is assigned to the other part.Hence the option D is correct.
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Zero(s) of multiplicity one:
Zero(s) of multiplicity two:
Zero(s) of multiplicity three:
Please look at photo for the full question. Thank you.
The zeros and the multiplicities are
Zero(s) of multiplicity one: x = 6Zero(s) of multiplicity two: x = 11Zero(s) of multiplicity three: x = -6 and x = -5How to determine the zeros and the multiplicitiesfrom the question, we have the following parameters that can be used in our computation:
f(x) = (x + 6)³(x - 11)²(x - 6)(x + 5)³
The power of each factor are the multiplicities
So, we have
Zero(s) of multiplicity one:
x - 6 = 0
Zero(s) of multiplicity two:
x - 11 = 0
Zero(s) of multiplicity three:
x + 6 = 0 and x + 5 = 0
When evaluated, we have
Zero(s) of multiplicity one:
x = 6
Zero(s) of multiplicity two:
x = 11
Zero(s) of multiplicity three:
x = -6 and x = -5
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A company has a 20-person grievance committee. When a grievance is filed, three of these 20 people are chosen at random to serve on a hearing panel. Suppose that two committees are formed. What is the probability that these committees have at least one member in common?
Answer:
the probability that the two committees have at least one member in common is approximately 0.3622.
Step-by-step explanation:
To find the probability that two committees have at least one member in common, we can use the complement rule, which states that the probability of an event happening is 1 minus the probability of the event not happening.
Let A be the event that the two committees have no members in common. To calculate the probability of A, we can first find the number of ways to choose three people out of 20 without any overlap, and then use this to find the total number of ways to choose two committees of three people each without any overlap:
Number of ways to choose 3 people out of 20 without overlap:
C(20,3) = (201918)/(321) = 1140
Number of ways to choose 3 people out of 20 with overlap:
C(20,3) - C(2,1)C(17,2) = 1140 - 2(2*136) = 680
The first term is the total number of ways to choose 3 people out of 20, and the second term is the number of ways to choose 3 people out of 20 such that one particular person is included. We multiply by 2 because there are two committees.
The total number of ways to choose two committees of three people each without any overlap is:
C(20,3) * C(17,3) = (1140*680) = 775200
Therefore, the probability that the two committees have no members in common is:
P(A) = 775200 / (C(20,3)*C(17,3)) = 0.6378
So the probability that the two committees have at least one member in common is:
P(at least one member in common) = 1 - P(A) = 1 - 0.6378 = 0.3622
Therefore, the probability that the two committees have at least one member in common is approximately 0.3622.
is amy right or wrong ? *help me please-*
Answer:
Yes she is correct because the angle 4 is is add together with its consecutive interior angle 5 will be supplementary which will equal 180 degrees and the interior angle 10 is supplementary with the exterior angle 9 which means added together they equal 180 degrees angle 10 is and obtuse and angle 9 is acute. therefore she is correct.
Answer:
Amy is probably wrong
Step-by-step explanation:
Water is pumped into a tank to dilute a saline solution. The volume of the solution, call it VV, is kept constant by continuous outflow. The amount of salt in the tank, call it ss, depends on the amount of water that has been pumped in; call this xx. Given that
dsdx=âsV
dsdx=âsV
find the amount of water that must be pumped into the tank to eliminate 50%50% of the salt. Take VV as 10,000 gallons.
The amount of water that must be pumped into the tank to eliminate 50% of the salt is x = V/â (50% of initial s).
The amount of water that must be pumped into the tank to eliminate 50% of the salt can be calculated using the differential equation dsdx=âsV, where s is the amount of salt, x is the amount of water pumped in, and V is the volume of the solution which is 10,000 gallons in this case. This equation can be rearranged to give x=V/âs. To eliminate 50% of the salt, we can set s equal to 50% of its initial value and calculate the corresponding x value. Therefore, the amount of water that must be pumped into the tank to eliminate 50% of the salt is x = V/â (50% of initial s).
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PLEASE HELP!!!
Baristas at Hot Cocoa Coffee Shop tested their new hot chocolate machine. The following table shows the number of seconds the machine was turned on and the amount of hot chocolate that filled up the cup.
Time (seconds)- 4 8 12 16 20 24
Hot chocolate amount (fluid ounces)- 4 5.5 7 9 12 15
Which representation is most appropriate for displaying and describing what is happening to the amount of hot chocolate over time?
The representation that is most appropriate for displaying and describing what is happening to the amount of hot chocolate over time is a Line Plot
What is a Line Plot?
A line plot, or dot plot/strip plot, is a simple visual method of displaying data that shows the spread of values on a horizontal scale. A frequent application of it is to graphically display the occurrence or spread of a solitary factor.
A line plot generally displays individual data points as a small dot or short line segment along a specific axis, usually the horizontal axis. The location of the dot or line segment indicates the numerical value of the data point. Usually, the up and down axis showcases the frequency or the number of times a particular value occurs.
With this type of Table, the top is always X and the bottom is always Y.
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The electric potential as a function of position y in a region of space is given by the equation V(y)=4y2 - 3y. Which of the following is correct for the magnitude of the electric field at position (2,6)?
The electric field is the derivative of the electric potential with respect to position. So we can find the electric field by finding the derivative of V(y) with respect to y.
What does a math function mean?
a mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variablevariable).
dV/dy = 8y - 3
So, at position y=6, the electric field is E = dV/dy = 8*6 - 3 = 45
Therefore, the magnitude of the electric field at position (2,6) is 45 N/C.
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Q7 PLEASE HELP ME !!!!!!!!!!!!!!!!!!!
The outcomes that are contained in the events are
X = 3 and 10 ⇒ P(X) = 1/5Not X =1, 2, 4, 5, 6, 7, 8 ⇒ P(Not X) = 4/51 - P(X) = 4/5 and 1 - P(X) is the same as P(Not X)
The outcomes contained in the eventsFrom the question, we have the following parameters that can be used in our computation:
X = gray colours
Given that
gray colours = 3 and 10
We have
X = 3 and 10
Not X =1, 2, 4, 5, 6, 7, 8
The probability is then calculated as
P(X) = 2/10 = 1/5
For P(Not X), we have
P(Not X) = 1 - 1/5 = 4/5
The equation of P(Not X)In (a), we have
P(Not X) = 1 - 1/5 = 4/5
This means that
P(Not X) = 1 - P(X)
So, the solution is
1 - P(X) = 4/5
The equivalent expressionUsing the above (a) and (b) as a guide, we have the following:
1 - P(X) is the same as P(Not X)
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Cameron is berry picking at the Berry Best farm. He wants to pick a total of 2 gallons of berries. After 30 minutes of picking, he has 6 pints of berries. For how many more minutes does Cameron need to pick berries to reach his goal?
Answer:
50 minutes
Step-by-step explanation:
2gal×4 qt in a gallon= 8 qt
8qt× 2pt in a qt= 16pt
16pt÷6 pt= 2.66
2.66×30= 80 min
80min-30min= 50 minutes
Which expression is equivalent to 4/9 times 7
Answer:
4/9 * 7 =3.11111111
Step-by-step explanation:
4/9 * 7 =3.11111111
Answer:
7 times 4/9
Step-by-step explanation:
Its simple lol
yis inversely proportional to the square of x.
A table of values for x and y is shown.
a) Express y in terms of x.
b) Work out the positive value of x when y = 25
Answer:
(a) \(y = \frac{4}{x^2}\)
(b) \(x = \frac{2}{5}\)
Step-by-step explanation:
Given
Variation: Inverse proportional.
This is represented as:
\(y\ \alpha\ \frac{1}{x^2}\)
See attachment for table
Solving (a):
First convert variation to equation
\(y = k\frac{1}{x^2}\)
From the table:
\((x,y) = (1,4)\)
So, we have:
\(4 = k * \frac{1}{1^2}\)
\(4 = k * \frac{1}{1}\)
\(4 = k * 1\)
\(4 = k\)
\(k = 4\)
Substitute 4 for k in \(y = k\frac{1}{x^2}\)
\(y = 4 * \frac{1}{x^2}\)
\(y = \frac{4}{x^2}\)
Solving (b): x when y = 25.
Substitute 25 for y in \(y = \frac{4}{x^2}\)
\(25 = \frac{4}{x^2}\)
Cross Multiply
\(25 * x^2 = 4\)
Divide through by 25
\(x^2 = \frac{4}{25}\)
Take positive square roots of both sides
\(x = \sqrt{\frac{4}{25}\)
\(x = \frac{2}{5}\)
8. The percentage of the moon's surface that is visible to someone on the Earth varies due to
the time since the previous full moon. The moon passes through a full cycle in 28 days. The
maximum percentage of the moon's surface that is visible from Earth is 50%. Find a function
for the percentage, P, of the surface that is visible as a function of the number of days, t,
since the previous full moon.
A functiοn fοr the percentage is P = 25cοs(π/14t) + 25.
What is a functiοn?In the case οf a functiοn frοm οne set tο the οther, each element οf X receives exactly οne element οf Y. The functiοn's dοmain and cοdοmain are respectively referred tο as the sets X and Y as a whοle. Functiοns were first used tο describe the idealized relatiοnship between twο varying quantities.
Here, we have
Given:
Tο find the percentage οf the full mοοn, we can write an equatiοn in the fοrm P = Acοs(Bt) + C
After 14 days, the percentage οf the mοοn is zerο
A = (max-min)/2 = 50/2 = 25
The periοd = 28 days
P = Acοs(BT = t) + c
B = 2π/periοd = 2π/28 = π/14
c = min + A = 0 + 25 = 25
We get,
P = 25cοs(π/14t) + 25,
Here, p is the percentage οf the mοοn visible cοmpared tο the previοus full mοοn.
Hence, a functiοn fοr the percentage is P = 25cοs(π/14t) + 25.
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Kelsey has a new baby brother!
He weighs 8 lbs 3 oz. The
doctor said the baby should
gain about 5 ounces per week.
At that rate, how much should
the baby weigh in 3 months (12
weeks)? In lb and oz
5 ounces per week x 12 weeks = 60 ounces
1 pound = 16 ounces
60 / 16 = 3 pounds 12 ounces
3 pounds 12 ounces + 8 pounds 3 ounces = 11 pounds 15 ounces
answer: 11 pounds 15 ounces
you want to buy some rice a 9-ounce package costs $3.33 a 12ounce costs $4.32 A 22 ounce package costs 8.58 which package is the best buy
What is the standard form of equation of the hyperbola shown in the graph?
The slopes of the asymptotes are ±3/4.
The equation of the hyperbola is \(\frac{(x-2)^2}{16}+ \frac{y^2}{9}=1\).
Given,
slopes of asymptotes=±\(\frac{3}{4}\)
From given graph,
it is observed that the vertices of hyperbola are (-2,0) and(6,0).
In general the equation of asymptote can be written as y=±\(\frac{b}{a}\)x
on comparing a=4 and b=3
As the vertices and foci are on line parallel to x-axis, the standard form of equation will be \(\frac{(x-h)^2}{a^2}+ \frac{(y-k)^2}{b^2}=1\)
Where, (h,k) is the centre of hyperbola
find the mid point of the two vertices to determine (h,k)
\((h,k)=(\frac{x1+x2}{2},\frac{y1+y2}{2})\\\\(h,k)=(\frac{-2+6}{2},\frac{0+0}{2})\\\\(h,k)=(2,0)\)
Equation will be
\(\frac{(x-2)^2}{4^2}+ \frac{(y-0)^2}{3^2}=1\\\\\frac{(x-2)^2}{16}+ \frac{y^2}{9}=1\)
Thus, the standard form of equation of the hyperbola is \(\frac{(x-2)^2}{16}+ \frac{y^2}{9}=1\).
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is the ordered pair a solution to the equation. y=-7; (-5,6)
Answer: No
To check if (-5,6) is a solution to the equation y=-7, we need to substitute -5 for x and 6 for y in the equation.
If the equation is true, then the ordered pair is a solution to the equation.
If we put (-5,6) into y=-7, we get 6=-7, which is not true.
So, (-5,6) is not a solution to the equation y=-7.
Suppose f(x) =8^3x and g(x) =8^4x which of these function operations are correct select all that apply
Suppose \(f(x) =8^{3x\) and \(g(x) =8^{4x\), function operations that are correct include the following:
A. (f + g)(x) = \(8^{3x} + 8^{4x}\)
B. (f × g)(x) = \(8^{7x}\)
C. (f - g)(x) = \(8^{3x} - 8^{4x}\)
What is an exponent?In Mathematics, an exponent is a mathematical operation that is typically used in conjunction with an algebraic expression in order to raise a quantity to the power of another.
This ultimately implies that, an exponent is represented by the following mathematical expression;
bⁿ
Where:
the variables b and n are numerical values (numbers) or an algebraic expression.n is referred to as a superscript or power.By applying the division and multiplication law of exponents for powers of the same base to the functions, we have the following:
(f × g)(x) = \(8^{3x+ 4x}=8^{7x}\)
(f ÷ g)(x) = \(8^{3x- 4x}=8^{-x}\)
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PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Answer:what do u need help on
Step-by-step explanation:
Answer:
it’s 4
Step-by-step explanation:
In the town of Centralburg (Figure 1), which is laid out in a uniform block grid, the grocery store is three blocks East and four blocks North of the post office. Which of the following is a correct equation for the quantities represented in this scenario?
Answer:
tan(θ)= dn/de
θ=arctan(dn/de)
Step-by-step explanation:
Factor each polynomial. Look for a GCF first.
2x²-8k-90
O
2 (x-9) (x - 5)
2 (x + 9) (x + 5)
2 (x − 9) (x + 5)
2 (x + 9) (x - 5)
Answer:
Step-by-step explanation:
First, you could factor 2 out of the whole thing. The result would be 2(x^2-4x-45). Now we find the factors of 45 which are 1, 45, 5, 9, 15, 3. We have to find the pair that adds up to 4, and multiply to get 45. After some guess and check, we can find that 5 and 9 are those numbers. Now we have to get the right signs. Since the result is a negative number for -8k, and -90, the number that is a negative must be less than the other negative. -9<-5, so the answer would be 2(x-9)(x+5)
3/4 = 12/y Find the missing value
3/4 = 12/y
3/4 * y = 12
.25 * y = 12
y = 3
Hope this helps! :)
CO Use the following coordinate plane to write the ordered pair for each point
Answer:
A. (0,4)
B. ( 0,-3)
C (-1,1)
Step-by-step explanation:
You decide that you want to purchase a Tesla SUV. You borrow $95,000 for the purchase. You
agree to repay the loan by paying equal monthly payments of $1,200 until the balance is paid off. If
you're being charged 6% per year, compounded monthly, how long will it take you to pay off the
loan?
Answer:
8.5 years
Step-by-step explanation:
It will take 102 more payments
8.5 years
Interest will be $26,239
It would take approximately 15 years to pay back the loan of 95000 which is compounding monthly and the rate of interest is 6%.
What is compound interest?Compound interest is basically the interest which is calculated on the primcipal with addition to aggregate interest. The formula of sum after compounding is as under:
S=P\((1+r/n)^{nt}\) in which P is principal amount, r is rate per annum, n is number of times of compounding and t is time period.
How to calculate time?We have been given that the amount of loan is $95000, installment is $1200 , rate of interest is 6% and it is compounded monthly.
First of all we have to find the effective rate=6%/12=0.005.
The future value of 95000 at a rate of 6% compunded monthly should be equal to the amount of all installments. So,
95000\((1+0.005)^{12n}\)=12*1200*n
95000\(1.005^{12n}\)=14400n
\(1.005^{12n}\)=14400n/95000
\(1.005^{12n}\)=0.1515n
We have to make graph of this to find the value of n which after graphing will come approx 15.
Hence it would take 15 years to pay back loan amount.
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triangle ABC is congruent to triangle BAD
What is the length of BD?
What is the measure of <BAD?
Answer:
BD = 16, ∠ BAD = 45°
Step-by-step explanation:
Given that Δ ABC and Δ BAD are congruent, then corresponding sides and corresponding angles are congruent, then
BD = AC = 16
and
∠ BAD = ∠ ABC = 45°
Answer:
BD=16, <BAD=45⁰
the triangle is congruent to triangle BAD is SAS
4) Visitors to an online store can enter a special code to receive a discount. The graph shows
the original price, , and sale price, y, of some items at the store.
What does the point at (60, 55) represent?
The point at (60, 55) means that an item with
an original price of $
?
has a sale price
of $ ?
Sale Price ($)
100
90
80
Online Store Prices
70
60
50
40
30
20
10
0
0 10 20 30 40 50 60 70 80 90 100
Original Price ($)
(30, 25)
(90, 85)
(60,55)
The point at (60, 55) represents an item with an original price of $60 that is now being sold at a sale price of $55.
How to find the function which was used to make graph?There are many tools we can use to find the information of the relation which was used to form the graph.
A graph contains data of which input maps to which output.
Analysis of this leads to the relations which were used to make it.
For example, if the graph of a function is rising upwards after a certain value of x, then the function must be having increasingly output for inputs greater than that value of x.
If we know that the function crosses x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.
We are given that;
The point at (60, 55)
Now,
This means that customers who enter the special discount code can save $5 on this particular item.
In general, the point (x, y) on the graph represents an item with an original price of x dollars that is being sold at a sale price of y dollars. The graph is showing how the sale price of items changes as the original price increases.
Therefore, by the graph the answer will be $60 and $55.
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Solve for x.
4x - 14
x + 85
x = [?]
Answer:
x = 33
Step-by-step explanation:
4x - 14 = x + 85
3x = 99
x = 99/3
x = 33
For the data set represented by this box plot, what is the value of the median? median:
Answer:
110
Step-by-step explanation:
The median is the middle line of the box
The median is 110
Answer:
the other person is correct!
Step-by-step explanation: