Answer:
5
Step-by-step explanation:
(4+20+x)/3 = (y+16)/2
2(24+x) = 3(y+16)
48 + 2x = 3y + 48
2x = 3y
Since x and y are positive integers, they can't be 0. To satisfy 2x = 3y
We'll have to use LCM of 2 and 3, which is 6 (or a multiple of 6)
For the least value, we use 6
To make both sides 6,
x = 3 and y = 2
Hence x + y = 5
What is the equation of the circle with center (1, −1) that passes through the point (5, 7)?
On a coordinate plane, a curved line crosses the y-axis at (0, 1), crosses the x-axis at (.25, 0), turns at point (2, negative 3), and crosses the x-axis (3.75, 0).
What is the range of the function on the graph?
all the real numbers
all the real numbers greater than or equal to 0
all the real numbers greater than or equal to 2
all the real numbers greater than or equal to –3
Answer:
All numbers greater than or equal to -3.
Step-by-step explanation:
Just took the edge test.
Answer:
yeah. its d
Step-by-step explanation:
edge test 2020
A pool charges $4 each visit or you can buy a membership. Right and solve an inequality to find how many times a person should use a pool so that the membership is less expensive than paying each time. Interpret the solution
The inequality is:
[tex]n > \frac{m}{4}[/tex]
Membership of the pool will be less expensive until number of visits to the pool is one fourth of the membership amount
Solution:
Given that,
A pool charges $4 each visit or you can buy a membership
Let "n" be the number of times you visit the pool
Let the membership amount of the pool be "m"
A pool charges $4 each visit
Therefore, cost for "n" visit is: $ 4n
The inequality showing that a membership is less expensive than paying each visit to the pool is:
4n > m
Divide both sides by "4"
[tex]n > \frac{m}{4}[/tex]
Therefore, membership of the pool will be less expensive until number of visits to the pool is one fourth of the membership amount
Find v × w if v = 3i + 8j – 6k and w = –4i – 2j – 3k.
Answer:
[tex]vXw =-36i+33j+26k[/tex]
Step-by-step explanation:
v = 3i + 8j – 6k
w = –4i – 2j – 3k
The cross product
[tex]v X w=\left|\begin{array}{ccc}i&j&k\\3&8&-6\\-4&-2&-3\end{array}\right|[/tex]
[tex]=i\left|\begin{array}{cc}8&-6\\-2&-3\end{array}\right|-j\left|\begin{array}{cc}3&-6\\-4&-3\end{array}\right|+k\left|\begin{array}{cc}3&8\\-4&-2\end{array}\right|\\[/tex]
[tex]=i(-24-12)-j(-9-24)+k(-6+32)\\vXw =-36i+33j+26k[/tex]
An ice cream shop serves small and large scoops of ice cream. Each scoop is sphere-shaped. Each small scoop has a diameter of approximately 6 centimeters. Each large scoop has a diameter of approximately 10 centimeters What is the difference, in cubic centimeters, between a large scoop of ice cream and a small scoop of ice cream? Round your answer to the nearest tenth.
The difference in volume between a large scoop and a small scoop of ice cream is approximately 410.5 cubic centimeters.
Explanation:To find the difference in volume between a large scoop and a small scoop of ice cream, we need to calculate the volume of each scoop and then subtract the volume of the small scoop from the volume of the large scoop.
The volume of a sphere can be calculated using the formula V = (4/3)πr³, where r is the radius. Since the diameter of the small scoop is 6 cm, the radius is 3 cm. Plugging this into the formula, we get V = (4/3)π(3 cm)³. Evaluating this expression, we find that the volume of the small scoop is approximately 113.1 cm³.
Similarly, the diameter of the large scoop is 10 cm, so the radius is 5 cm. Using the same formula, we find that the volume of the large scoop is approximately 523.6 cm³.
To find the difference in volume, we subtract the volume of the small scoop from the volume of the large scoop: 523.6 cm³ - 113.1 cm³ = 410.5 cm³. Therefore, the difference in volume between a large scoop and a small scoop of ice cream is approximately 410.5 cubic centimeters.
Learn more about Volume here:https://brainly.com/question/21623450
#SPJ12
The final answer is 410.5 cubic centimeters.
1. Calculate the volume of a small scoop:
- Given the diameter of the small scoop, [tex]\( d_{\text{small}} = 6 \) cm[/tex].
- Radius of small scoop, [tex]\( r_{\text{small}} = \frac{d_{\text{small}}}{2} = \frac{6}{2} = 3 \)[/tex] cm.
- Volume of a sphere [tex]\( V = \frac{4}{3} \pi r^3 \).[/tex]
- Substitute the radius into the volume formula: [tex]\( V_{\text{small}} = \frac{4}{3} \pi (3)^3 = \frac{4}{3} \pi (27) \)[/tex].
- Calculate:
[tex]\( V_{\text{small}} = 36 \pi \)[/tex] cubic centimeters.
2. Calculate the volume of a large scoop:
- Given the diameter of the large scoop,[tex]\( d_{\text{large}} = 10 \) cm[/tex].
- Radius of large scoop, [tex]\( r_{\text{large}} = \frac{d_{\text{large}}}{2} = \frac{10}{2} = 5 \) cm[/tex].
- Volume of a sphere [tex]\( V = \frac{4}{3} \pi r^3 \)[/tex].
- Substitute the radius into the volume formula:
[tex]\( V_{\text{large}} = \frac{4}{3} \pi (5)^3 = \frac{4}{3} \pi (125) \)[/tex].
- Calculate:
[tex]\( V_{\text{large}} = 166.7 \pi \)[/tex] cubic centimeters.
3. Find the difference:
- Difference in volume: [tex]\( V_{\text{large}} - V_{\text{small}} = 166.7 \pi - 36 \pi \)[/tex].
- Calculate: [tex]\( V_{\text{large}} - V_{\text{small}} = 130.7 \pi \)[/tex].
- Approximate [tex]\( \pi \)[/tex] to 3.14.
- [tex]\( 130.7 \times 3.14 = 410.498 \)[/tex].
- Rounded to the nearest tenth, the difference is approximately 410.5 cubic centimeters.
School D has 880 boys to 200 girls The ratio of girls to all students is 5 to 27 22/27 of all students are boys idk how to get from 880 to 27 and do a proportion
Answer:
(i)Ratio of the Number of Girls in the School to the Total Population
=5:27
(ii)Ratio of the Number of Boys in the School to the Total Population=22:27
Step-by-step explanation:
Below is the steps on how the given ratio are derived
If the school has 880 boys and 200 girls
Total Population of the School=880+200=1080
Ratio of Girls to all Student is 5:27
Now, this is derived from this:
Ratio of the Number of Girls in the School to the Total Population
=200:1080[tex]=\frac{200}{1080} =\frac{5}{27}[/tex]
Which in reduced form is 5:27
You can do likewise for boys
Ratio of the Number of Boys in the School to the Total Population=880:1080[tex]=\frac{880}{1080} =\frac{22}{27}[/tex]
Which in reduced form is 22:27
An election with 8 candidates has a 2-stage voting process. In the first stage, voters choose 1 candidate from all 8 names on the ballot. The 3 candidates who receive the most votes in the first round will appear on the second ballot. Due to time constraints, a print shop must prepare ballots for the second ballot in advance of the first-stage results.
How many different ballots must the shop prepare?
Answer:
56
Step-by-step explanation:
8C3 = 56
What value of x satisfies the equation x + 3 = -(x + 1)? a. x = 8
b.x = 8/3
c.x=-8/3
d.x=-8
The solution to the equation x + 3 = -(x + 1) is x = -2, which is not listed among the provided options. There may be an error in the question or provided options.
Explanation:To find the value of x that satisfies the equation x + 3 = -(x + 1), we need to solve for x.
First, expand the right side of the equation: x + 3 = -x - 1. Then, add x to both sides of the equation to get 2x + 3 = -1. Finally, subtract 3 from both sides to obtain 2x = -4. Dividing both sides by 2 yields x = -2.
Upon examining the options provided, none of them match our solution. Therefore, there must be a mistake in the provided options or in the question as posed, because our correct solution is x = -2. This means the correct answer is not listed among the options a. x = 8, b. x = 8/3, c. x = -8/3, or d. x = -8.
The voters of the city passed an ordinance to increase their sales tax by ¼ percent. The proceeds of the sales tax are to be used for culture and recreation. In the governmental activities journal, how would the ¼ percent sales tax revenue be recorded?
Answer:
General Revenue Sales Tax
Step-by-step explanation:
The ¼ percent would be recorded as general revenue sales tax in government activities journal.
This is because the revenue from the tax are categorised as the revenues generated from payrolls (which are imposed on employers), income and profits taxes, social security contributions, taxes levied on goods and services.
Options:
Program Revenue-Culture and Recreation-Sales Tax.
Program Revenue-Culture and Recreation-Operating Grants and Contributions.
General Revenue-Sales Tax.
General Revenue-Culture and Recreation-Sales Tax.
Answer:
General Revenue - Sales Tax
Step-by-step explanation:
General revenue is the income that is generated by the state which may be used to serve any administrative purpose by the state, and tax revenue is the income that is generated by the state through taxation.
Since the sales tax is a way of generating income by the state, it should be recorded as sales tax under general revenue.
Kelly uses 8.7 paints of blue paint and white paint to paint her bedroom walls. 1 4 of this amount is blue paint, and the rest is white paint. How many paints of white paint did she use to paint her bedroom walls
Answer: she used 6.525 pints of white paint.
Step-by-step explanation:
Kelly uses 8.7 paints of blue paint and white paint to paint her bedroom walls. If 1/4 of this amount is blue paint, it means that the amount of blue paint that she used in painting her bedroom walls is
1/4 × 8.7 = 2.175 pints of blue paint.
Since the rest of the paint is white, it means that the pints of white paint that she used to paint her bedroom walls is
8.7 - 2.175 = 6.525 pints of white paint
Answer:
she uses 6.525 pints of paint
Step-by-step explanation:
Prime numbers problem
Answer:
The answer to your question is 2² 3² or (4)(9)
Step-by-step explanation:
Data
factor 36
Process
1.- Divide 36 by prime numbers starting from 2, then 3, 5, 7, etc.
36 2
18 2
9 3
3 3
1
2.- Write 36 as a composition of prime numbers
36 = 2²3²
3.- The prime factors of 36 are 2² x 3²
Marcus is working at a local pizzeria where he makes $12.50 per hour and is also working at the university bookstore where he makes $9.50 per hour. He must make at least $300 per week to cover his expenses but cannot work more than 30 hours per week in order to attend classes. Write a system of inequalities that models this situation where p represents the hours he works at the pizzeria and b represents the hours he works at the bookstore.
Answer: The system of inequalities that models this situation are
p + b ≤ 30
12.5p + 9.5b ≥ 300
Step-by-step explanation:
Let p represent the number of hours he works at the pizzeria.
Let b represent the number of hours he works at the bookstore.
He cannot work more than 30 hours per week in order to attend classes. This means that
p + b ≤ 30
Marcus is working at a local pizzeria where he makes $12.50 per hour and is also working at the university bookstore where he makes $9.50 per hour. He must make at least $300 per week to cover his expenses. This means that
12.5p + 9.5b ≥ 300
plz help i really need it
Answer:
y=\frac{1}{8}x+4
Step-by-step explanation:
first, we can quickly get rid of options 1 and 2, since the y-intercept is not -4, but +4.
this leaves us with options 3 and 4.
we can rule out option3, since the slope is not 4, but 1/8.
hope this helps :)
Which system of equations could be graphed to solve the equation below?
Answer:
B
Step-by-step explanation:
I think this is your full question and hope it is correct.
Which system of equations could be graphed to solve the equation below?
log(2x+1)=3x-2
A. y1=3x, y2=2x
B. y1=log(2x+1), y2=3x-2
C. y1=log2x+1, y2=3x-2
D. y1=log(2x+1+2), y2=3x
My answer:
We know that: log(2x+1)=3x-2 and they are a equation of log and linear so we need to make system of equation.
The left side is: [tex]y_{1}[/tex] => [tex]y_{1} = log( 2x+1)[/tex]
The right side is : [tex]y_{2} = 3x -2[/tex]
The system of equations are:
[tex]\left \{ {{y_{1} =log(3x+1)} \atop {y_{2} =3x -2}} \right.[/tex]
Now we have two new function with x and y.
You are dealt two cards successively without replacement from a standard deck of 52 playing cards. Find the probability that the first card is a two and the second card is a ten. Round your answer to three decimal places. A. 0.250 B. 0.994 C. 0.500 D. 0.006 Click to select your answer.
Answer:
(D) 0.006
Step-by-step explanation:
Total number of cards :52
Please note that, all cards have a the possibility of appearing 4 times.
Hence total possible number of a '2' is 4 cards and so it is also for a '10'
Having this Understanding, let's solve the question properly.
The probability that the FIRST CARD is 2 = 4/52
Probability that the second card without replacement is a 10 = 4 / 51
P( 1st two and 2nd four)
4/52 * 4/51 = 4/663
= 0.0060332
Rounding to 3 decimal places = 0.006
Christopher's back yard is in the shape of a trapezoid. The bases of his back yard are 30 and 40 feet long. The area of his back yard is 525 square feet. Write and solve an equation to find the height of Christopher's back yard.
Answer:
15 feet
Step-by-step explanation:
525 = ½(30+40)h
525 = 35h
h = 525/35
h = 15 feet
Simplify seven square root of three end root minus four square root of six end root plus square root of forty eight end root minus square root of fifty four.
[tex]7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}[/tex] simplified as [tex]11\sqrt{3}- 7\sqrt{6}[/tex] or [tex]1.909[/tex] .
Step-by-step explanation:
We need to Simplify seven square root of three end root minus four square root of six end root plus square root of forty eight end root minus square root of fifty four. Which is equivalent to [tex]7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}[/tex] :
[tex]7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}[/tex]
⇒ [tex]7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{44}[/tex]
⇒ [tex]7\sqrt{3}- 4\sqrt{6} + \sqrt{16(3)} - \sqrt{9(6)}[/tex]
⇒ [tex]7\sqrt{3}- 4\sqrt{6} + 4\sqrt{(3)} - 3\sqrt{(6)}[/tex]
⇒ [tex]11\sqrt{3}- 4\sqrt{6}- 3\sqrt{(6)}[/tex]
⇒ [tex]11\sqrt{3}- 7\sqrt{6}[/tex]
[tex]\sqrt{3} = 1.732 , \sqrt{6} = 2.449[/tex]
⇒ [tex]11(1.723)- 7(2.449)[/tex]
⇒ [tex]1.909[/tex]
Therefore, [tex]7\sqrt{3}- 4\sqrt{6} + \sqrt{48} - \sqrt{54}[/tex] simplified as [tex]11\sqrt{3}- 7\sqrt{6}[/tex] or [tex]1.909[/tex] .
Answer:
11√3 - 7√6
Step-by-step explanation:
I took the test and got it right.
HL Theorem
ASA Postulate
SSS Postulate
SAS Postulate
Answer:
HL theorem.
Step-by-step explanation:
This states that if the hypotenuse (H) and one leg (L) of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the triangles are congruent.
Answer:
ASA Postulate
Step-by-step explanation:
[tex] In \:\triangle QTS \:\&\:\triangle SRQ\\\\
QT || SR\\\\
\angle QTS \cong \angle SRQ... (each\: 90°)\\\\
TS \cong QR.... (given) \\\\
\angle QST \cong \angle SQR.. (alternate\:\angle s) \\\\
\therefore \triangle QTS \cong \triangle SRQ\\.. (By \: ASA \: Postulate) [/tex]
RHS Postulate can also be applied to prove both the triangles as congruent.
Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage ofthe total variation that can be explained by the linear relationship between the two variables. r = 0.885 (x = weight of male, y = waist size of male)
Answer:
Step-by-step explanation:
The coefficient of determination = [tex]r^{2}[/tex] = [tex]0.885^{2}[/tex] = 0.7832
It means about 78% variation in waist size of males can be explained by their weight and about 23% can not be explained.
The idea in Exercise 3.51 generalizes to give a new formula for the expected value of any nonnegative integer-valued random variable. Show that if the random variable X takes only nonnegative integers as its values then E(X) = X[infinity] k=1 P(X ≥ k). This holds even when E(X) = [infinity], in which case the sum on the right-hand side is infinite. Hint. Write P(X ≥ k) as P[infinity] i=k P(X = i) in the sum, and then switch the order of the two summations.
Final answer:
The question asks to demonstrate that for a nonnegative integer-valued random variable X, the expected value E(X) equals the summation over all k of the probability P(X ≥ k). This is shown by expressing P(X ≥ k) as an infinite sum, switching the order of summation, and counting each probability P(X = i) exactly i times.
Explanation:
The student's question pertains to the calculation of the expected value (E(X)) of a nonnegative integer-valued random variable. Specifically, the question asks to show that for such a random variable X, the expected value can be expressed as E(X) = ∑₋∞ k=1 P(X ≥ k). To demonstrate this, we begin with the definition of expected value:
E(X) = μ = ∑ xP(x).
Next, we unpack P(X ≥ k) by writing it as an infinite sum of probabilities for all integers i starting from k:
P(X ≥ k) = ∑₋∞ i=k P(X = i).
To find the expected value, we consider the sum of all such probabilities over all k:
∑₋∞ k=1 P(X ≥ k) = ∑₋∞ k=1 ∑₋∞ i=k P(X = i).
We then switch the order of summation, so that we first sum over all possible values of i and then for each i, we sum over the corresponding k that contributes to P(X = i):
E(X) = ∑₋∞ i=1 P(X = i) ∑₉ i k=1.
By doing this, we count each P(X = i) exactly i times, which leads us to the initial definition of expected value, thus proving the given formula.
Find the derivative of f(x) = 5 divided by x at x = -1. (1 point)
Answer:
-5
Step-by-step explanation:
The power rule can be used.
f(x) = 5x^-1
f'(x) = 5(-1)x^(-1-1)
f'(x) = -5x^-2
Then ...
f'(-1) = -5(-1)^-2
f'(-1) = -5
_____
The attached graph shows the value of the derivative at x=-1, along with a tangent line having that slope at the point (-1, f(-1)).
Brenda invests $4500 in a savings account earning 5.5% interest compounded quarterly. What will the account balance be after 7 years?
Answer: The account balance will be $6596 after 7 years.
Step-by-step explanation:
We would apply the formula for determining compound interest which is expressed as
A = P(1+r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount deposited
From the information given,
P = $4500
r = 5.5% = 5.5/100 = 0.055
n = 4 because it was compounded 4 times in a year.
t = 7 years
Therefore,.
A = 4500(1 + 0.055/4)^4 × 7
A = 4500(1 + 0.01375)^28
A = 4500(1.01375)^28
A = $6596
HRLP HELP HELP!!!!! nearest foot
The horizontal distance the plane has covered is 3940 feet
Explanation:
The plane makes an angle 10° with the ground when it took off from the field.
We need to find the horizontal distance the plane when it has flown 4000 feet.
The length of the hypotenuse is 4000 feet.
Let the horizontal distance be x.
We shall find the value of x using the cosine formula.
The formula is given by
[tex]cos \theta=\frac{adj}{hyp}[/tex]
Substituting the values, we have,
[tex]cos \ 10^{\circ}=\frac{x}{4000}[/tex]
Substituting the value for cos 10°, we get,
[tex]0.985=\frac{x}{4000}[/tex]
Multiplying both sides of the equation by 4000, we get,
[tex]0.985\times 4000=x[/tex]
Simplifying, we get,
[tex]3940=x[/tex]
Thus, the horizontal distance the plane has covered is 3940 feet
I need help plz and I have to show work
This is a very simple and easy problem. I'm not sure why you need someone else to solve it, but I hope this helps
a. Linear equation:
Let x be amount of movies rented
$8 + ($2.50 * x)
b.
$8 + ($2.50 * 10)
= $8 + $25.0
= $33
A researcher selects a sample of 25 participants from a population with a mean of 20 and a standard deviation of 10. What is the range of values for the sample mean that fall within 1 standard error of the mean in a sampling distribution?
Answer:
The range of values for the sample mean is between a lower limit of 19 and an upper limit of 21.
Step-by-step explanation:
sample mean = 20
sd = 10
n = 25
standard error = 1
Lower limit of sample mean = sample mean - standard error = 20 - 1 = 19
Upper limit of sample mean = sample mean + standard error = 20 + 1 = 21
The range of values for the sample mean is between 19 and 21.
Its 10 3/5 miles from Alston to Barton and 12 1/2 miles from Barton to Chester. The distance from Alston to Durbin, via barton and Chester, is 35 miles how far is it from Chester to durbin
Answer:
It is [tex]11\frac{9}{10}[/tex] miles far from Chester to Durbin.
Step-by-step explanation:
Given:
Its 10 3/5 miles from Alston to Barton and 12 1/2 miles from Barton to Chester. The distance from Alston to Durbin, via barton and Chester, is 35 miles.
Now, to find the distance from Chester to durbin.
Distance from Alston to Barton = [tex]10\frac{3}{5} =\frac{53}{5} \ miles.[/tex]
Distance from Barton to Chester = [tex]12\frac{1}{2}\ miles =\frac{25}{2} \ miles.[/tex]
As, given the distance from Alston to Durbin, via barton and Chester, is 35 miles.
Thus, the total distance = 35 miles.
So, we add the distance of Alston to Barton and Barton to Chester and get the distance from Alston to Chester:
[tex]\frac{53}{5} +\frac{25}{2}[/tex]
[tex]=\frac{106+125}{10}[/tex]
[tex]=\frac{231}{10} \ miles.[/tex]
Distance from Alston to Chester [tex]=\frac{231}{10} \ miles.[/tex]
Now, to get the distance from Chester to durbin we subtract distance from Alston to Chester from the total distance:
[tex]35-\frac{231}{10} \\\\=\frac{350-231}{10} \\\\=\frac{119}{10} \\\\=11\frac{9}{10}\ miles.[/tex]
Therefore, it is [tex]11\frac{9}{10}[/tex] miles far from Chester to Durbin.
Kevin uses 84 fluid ounces of water to make an all-purpose cleaner. The directions call for 4 fluid ounces of concentrated soap for every 3 cups of water. How many fluid ounces of soap should he use? (1 cup 5 8 fl oz)
Answer: 28 fl oz
Step-by-step explanation:
84 fl oz. = 10.5 cups of water
10.5/3=3.5*8=28
why 3.5 times 8 is to get the exact amount of fluid ounces
Answer: he would need 14 fluid ounces of concentrated soap.
Step-by-step explanation:
The directions call for 4 fluid ounces of concentrated soap for every 3 cups of water.
1 cup = 8 fluid ounces
Converting 3 cups of water to fluid ounces, it becomes
3 cups = 3 × 8 = 24 fluid ounces
Kevin uses 84 fluid ounces of water to make an all-purpose cleaner. This means that the amount of concentrated soap that he would use is
(84 × 4)/24 = 336/24 = 14 fluid ounces of concentrated soap
Please help. And show how you got your answer so I know how to do it.
Answer:
9. (x, y) = (6√3, 3)
10. (x, y) = (14, 14√2)
11. (x, y) = (2√6, 3√2)
12. (x, y) = (6, 2)
Step-by-step explanation:
Because you have memorized a short table of trig functions, you know that the ratio of side lengths of a 30°-60°-90° triangle is 1 : √3 : 2, and the ratio of side lengths of a 45°-45°-90° triangle is 1 : 1 : √2.
In each case, we compare the given side ratios to the known ratios for the kind of triangle we have. Then we multiply the triangle ratios by a scale factor that makes the given number match the corresponding ratio value. Matching the other ratio values, we can determine the values of the variables.
__
9. Using the side ratios for the 30-60-90 triangle, you have
6 : x : y+9 = 1 : √3 : 2
Multiplied by 6, the ratios on the right are ...
6 : x : y+9 = 6 : 6√3 : 12
x = 6√3
y +9 = 12
y = 3
__
10. Using the side ratios for the 45-45-90 triangle:
14 : x : y = 1 : 1 : √2
Multiplying the ratios on the right by 14, we have ...
14 : x : y = 14 : 14 : 14√2
x = 14
y = 14√2
__
11. Again using the 30-60-90 ratios:
√6 : y : x = 1 : √3 : 2
Multiplying the ratios on the right by √6, we have ...
√6 : y : x = √6 : 3√2 : 2√6
y = 3√2
x = 2√6
__
12. Again, using the 45-45-90 ratios:
x : 3y : 6√2 = 1 : 1 : √2
Multiplying the ratios on the right by 6, we have ...
x : 3y : 6√2 = 6 : 6 : 6√2
x = 6
3y = 6
y = 2
Having some trouble with this...pls help (in fraction form)
Answer:
[tex]\frac{17}{6}[/tex] or [tex]2\frac{5}{6}[/tex]
Step-by-step explanation:
1.Find the Least Common Denominator (LCD)
LCD = 6
2.Make the denominators the same as the LCD.
[tex]2+\frac{1*3}{2*3} + \frac{1*2}{3*2}[/tex]
3.Simplify. Denominators are now the same
[tex]2+\frac{3}{6} + \frac{2}{6}[/tex]
4. Join the denominators
[tex]2+\frac{3+2}{6}[/tex]
5.Simplify
[tex]2\frac{5}{6}[/tex] = [tex]\frac{17}{6}[/tex]
Answer:
1 1/3
Step-by-step explanation:
Given function:
2y+xx= 1/3y= 1/2Rewrite:
2·1/2+1/3Find the solution:
[tex]2[/tex]·[tex]1/2=1[/tex] [tex]1+\frac{1}{3}=1\frac{1}{3}[/tex]Therefore, 2y+x=1 1/3..
Factor the expression. 100k^3 – 75k^2 + 120k – 90
5(5k^2 + 6)(4k – 3)
(25k^2 – 6)(20k + 3)
5(5k^2 – 6)(4k + 3)
(5k^2 + 30)(4k – 15)
For this case we must factor the following expression:
[tex]100k ^ 3-75k ^ 2 + 120k-90[/tex]
We take common factor 5:
[tex]5 (20k ^ 3-15k ^ 2 + 24k-18) =[/tex]
We have two groups within the parentheses:
Group 1: [tex]20k ^ 3-15k ^ 2[/tex]
Group 2: [tex]24k-18[/tex]
We factor each group:
Group 1: [tex]6 (4k-3)[/tex]
Group 2: [tex]5k ^ 2 (4k-3)[/tex]
Rewriting we have:
[tex]5 (5k ^ 2 (4k-3) +6 (4k-3)) =\\5 ((5k ^ 2 + 6) (4k-3))[/tex]
Answer:
[tex]5 (5k ^ 2 + 6) (4k-3)[/tex]