Answer:
option 4
Step-by-step explanation:
2(x² - 1) + 3x(x - 4) ← distribute both parenthesis
= 2x² - 2 + 3x² - 12x ← collect like terms
= (2x² + 3x²) - 12x - 2
= 5x² - 12x - 2
Answer:
4) 5x²- 12x - 2Step-by-step explanation:
\(\mathrm{2\left(x^2-1\right)+3x\left(x-4\right)}\)
Expand:-
\(\mathrm{2x^2-2+3x^2-12x}\)
Combine like terms:-
\(\mathrm{2x^2+3x^2-12x-2}\)
\(\mathrm{5x^2-12x-2}\)
Therefore, 4) 5x²-12x-2 is your answer!
__________________
Hope this helps!
4. if you roll a fair die 8 times, what is the probability of throwing at most two 6s?(round your answer to three decimal places).
The probability of throwing at most two 6s is (5/6)^8 + 8*(1/6)(5/6)^7 + (28/2)(1/6)^2*(5/6)^6, which is approximately equal to 0.983.
We want to find the probability of throwing at most two 6s, which means we want to find the probability of throwing zero, one, or two 6s. The probability of throwing zero 6s is (5/6)^8, since we need to roll a non-6 on all 8 rolls.
The probability of throwing one 6 is 8*(1/6)(5/6)^7, since there are 8 ways to choose which roll will be the 6, and we need to roll a 6 on that one roll and a non-6 on the other 7 rolls.
The probability of throwing two 6s is (28/2)(1/6)^2*(5/6)^6, since there are 28 ways to choose which 2 rolls will be the 6s, and we need to roll a 6 on both of those rolls and a non-6 on the other 6 rolls.
Therefore, the probability of throwing at most two 6s is (5/6)^8 + 8*(1/6)(5/6)^7 + (28/2)(1/6)^2*(5/6)^6, which is approximately equal to 0.983.
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Find the radius of (x - 3)^2 + (y + 1)^2 = 9
(x + 5)^2 + (y + 2)^2 = 36
Answer: First equation: 3
Second equation: 6
Step-by-step explanation:
First equation:
The standard equation for a circle is (x-h)^2+(y-k)^2=r^2, where (h,k) is the vertex of the circle and r is the radius
To find the radius, set r^2=9, since 9 is taking the place of r^2.
Square root each side, and only positive values are taken for a radius, so the radius is 3.
Second equation:
Using the same logic, we can find the radius for the second one.
The radius is r^2=36(remember that r^2 is taking place of 36)
Take the square root of both sides(only +), so the radius for the second problem is 6.
>:)
the circumference of the base of a 5 -foot-high cylinder is 46 inches. what is the volume of the cylinder? (use the formula v
The volume of the cylinder is 10,099.09 inches³.
Here we have to find the volume of the cylinder.
Given data:
Circumference = 46 inches
height(h) = 5 foot = 12 × 5 = 60 inches
Circumference = 2πr
46 = 2 ×π × r
r = 23/π
The formula for the volume of the cylinder = πr²h
Volume = π( 23/π)² 60
= 529× 60 / π
= 10,099.09 inches³
Therefore the volume is 10,099.09 inches³.
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40% of what number = 18
Answer:
The answer is 45
Step-by-step explanation:
Follow the steps:
set it up:
18/? = 40%/100%
18 x 100= 1800
1800 divided by 40 equals 45
Hope this helps! :)
Help me with this Question Please.
Answer:
\(3 \times \frac{1}{3 } + \frac{1}{2} \times - 12( \frac{1}{3} ) = \frac{1}{3} \)
PLEASE HELP!! Will mark brainliest!!
Answer:
-1, 0, 1, 2
Step-by-step explanation:
\(\sqrt{5-5} -1\\\sqrt{0} -1\\0-1\\-1\)
\(\sqrt{6-5} -1\\\sqrt{1} -1\\1-1\\0\)
\(\sqrt{9-5} -1\\\sqrt{4} -1\\2-1\\1\)
\(\sqrt{14-5} -1\\\sqrt{9} -1\\3-1\\2\)
The points (0, 1), (1, 13), (2, 23), and (3.31) are on the graph of a quadratic function.
Calculate the second difference and state the a-value of the function.
Answer: try using desmos its a life safer
Step-by-step explanation:
(Compound interest)
$17,525 deposit, interest at 1/2% for 3 years; find interest earned.
so 0.5% rate
\(~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\dotfill & \$17525\\ r=rate\to 0.5\%\to \frac{0.5}{100}\dotfill &0.005\\ t=years\dotfill &3 \end{cases} \\\\\\ I = (17525)(0.005)(3) \implies I \approx 262.88\)
A six-sided fair die and an eight-sided fair die are rolled together. What is the probability of getting numbers whose sum is a multiple of 3? A 1/18 B 1/4 C 1/3 D 4/9 E 2/3
Answer:
C 1/3
Step-by-step explanation:
The numbers on a 6-sides die are 1, 2, 3, 4, 5, 6.
The number of an 8-sided die are 1, 2, 3, 4, 5, 6, 7, 8.
All the possible sums are:
2, 3, 4, 5, 6, 7, 8, 9,
3, 4, 5, 6, 7, 8, 9, 10,
4, 5, 6, 7, 8, 9, 10, 11,
5, 6, 7, 8, 9, 10, 11, 12
6, 7, 8, 9, 10, 11, 12, 13
7, 8, 9, 10, 11, 12 ,13, 14
The multiples of 3 are shown in bold and italic.
There are 48 possible sums.
16 sums are multiples of 3.
p(numbers whose sum is a multiple of 3) =
(number of outcomes that are multiples of 3)/(total number of possible outcomes)
p(numbers whose sum is a multiple of 3) = 16/48
p(numbers whose sum is a multiple of 3) = 1/3
Answer: C 1/3
Albert drew a scale drawing of a county park. The scale he used was 7 inches : 4 yards. The actual width of the picnic area is 64 yards. How wide is the picnic area in the drawing?
I think its like you divide 64 by 4. This will tell you how many sets of the 4 yards you have which is important to know since each 4 yards equals 7 inches. 64 divided by 4 is 16. Then multiple 16 by 7 since there's 16 sets of 4 and each set is 7 inches. This will come to a total of 112 inches.
I hope this helps, sorry if its wrong I haven't done this in a while, but I'm pretty sure its correct
In the first week of July, a record 1,120 people went to the local swimming pool.In the second week, 100fewer people went to the pool than in the first week. In the third week,140 more people went to the pool than in the second week. In the fourth week, 208 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four weeks?
Answer:
15%
Step-by-step explanation:
Given that:
Number of people who went to swimming pool in the first week = 1120
In second week, there are 100 fewer people, so
Number of people who went to swimming pool in the second week = 1020
In third week, there are 140 more people, so
Number of people who went to swimming pool in the third week = 1160
In fourth week, there are 208 fewer people, so
Number of people who went to swimming pool in the fourth week = 952
To find:
Percentage decrease in the number of people who went to the pool over the four weeks?
Solution:
Initial value = 1120
Final value = 952
Decrease in the value = Final value - Initial value
Decrease in the value = 1120 - 952 = 168
To find the percentage, we need to take the initial value in the consideration.
Therefore, percentage decrease is:
\(\dfrac{Decrease}{Initial\ value}\times 100\)
\(\Rightarrow \dfrac{168}{1120}\times 100\\\Rightarrow \bold{15\%}\)
Answer:
Step-by-step explanation:
What is the best number?: Five million, three hundred eighteen thousand and eight or 73 because it is a binary ____?____?Select one:a. 73 because it is a binary palindromeb. Five million, three hundred eighteen thousand and eight because it is a binary palindromec. All of the aboved. None of the above
The binary representation of 5,318,008 is 10100010010010101111000, whereas the binary representation of 73 is 1001001.
We notice that 73 is a binary palindrome while 5,318,008 is not, therefore we conclude that the best number is 73 and the answer is a.
PLZ HELP! Solve for missing side.
show your work.
Answer:
5?
Step-by-step explanation:
I don't know. I believe it is 5, but this isn't exactly accurate.
Answer:
10
Step-by-step explanation:
Pythagorean Theorem:
\(a^{2} + b^{2} = c^{2}\)
Putting the values in the variables:
\((10 + x)^{2} + 15^{2} = 25^{2}\)
\((10 + x)^{2} + 225 = 625\)
\((10 + x)^{2} = 400\)
\(10 + x = \sqrt{400}\)
\(10 + x = 20\)
\(x = 20 - 10 = 10\)
C
48 m
20 m
What is the length of the hypotenuse?
Answer:
c = 52 m
Step-by-step explanation:
using Pythagoras' identity in the right triangle
the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is
c² = 48² + 20² = 2304 + 400 = 2704 ( take square root of both sides )
c = \(\sqrt{2704}\) = 52 m
7) What does a multiplier of \( 1.2 \) mean?
A multiplier of 1.2 means the value is multiplied or increased by a factor of 1.2.
A multiplier is a term used to represent a factor by which a value is multiplied or increased. It is a numeric value that indicates the extent of the increase or expansion of a given quantity. Multiplication by a multiplier results in scaling or changing the magnitude of the original value.
A multiplier of 1.2 indicates that a value will be increased by 20% or multiplied by a factor of 1.2. This means that when the multiplier is applied to the original value, the resulting value will be 1.2 times the original.
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Which of the following expressions is equivalent to 32x − 3?
the quantity 9 to the power of x end quantity over 27
the quantity 6 to the power of x end quantity over 9
the quantity 2 to the power of x end quantity over 3
the quantity 1 to the power of x end quantity over 9
The expressions which is equivalent to the given expression; 3^(2x -3) is; the quantity 9 to the power of x end quantity over 27.
Option (A) is correct.
It is required to choose the expressions.
What are the laws of indices ?Index laws are the rules for simplifying expressions involving powers of the same base number. Index (indices) is the exponent which is raised to a number.
Given:
It follows from the task content that the equivalent expression as in the task content can be determined by the laws of Indices.
Now, according to laws of indices;
\(3^{2x} =( 3^{2}) ^{x}\)
Thus, we now have;
\(= (3^{2} )^{x} )/3^{3} \\= (9^{x} )/3^{3} \\= (9^{x} )/27\)
Therefore, the expressions which is equivalent to the given expression; 3^(2x -3) is; the quantity 9 to the power of x end quantity over 27.
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Translate the quadrilateral W(-2,2), X(-3,3), (-6,5), 2(-6,3)
using the transformation (x-2,y+3).
Answer:
New Coordinates W(-4, 5), X(-5, 6), (-8, 8), 2(-8,6)
Find the surface area and volume to the nearest while number
Answer:
Surface area: 18,144m
Volume: 139,968m³
Step-by-step explanation:
Surface area:
72x72 = 5184m on bottom, as well as top
5184+5184= 10368
27x72 for side length = 1944
1944 x 4 sides = 7776
7776+10368 = 18,144m surface area
Volume:
72x72x27 = 139,968m³
I’m confused on what number 4 means. Can someone please help?
Answer:I think you can say like the most bought music in class B is alternative and the lowest one is classical and so on
Step-by-step explanation:
Can someone please help?
Answer:
Even
Step-by-step explanation:
An odd number added by an odd number will equal an even number.
Good luck :)
Answer:
Even
Step-by-step explanation:
All the answers to adding up odd numbers in the bellow examples shows even answers.
Here is the probability curve for X = female wrist girth (cm). How do we interpret the shaded area? 16 17 The probability that a woman has a wrist girth larger than 16 cm. The probability that a woman has a wrist girth of 16cm The probability that a woman has a wrist girth less than 16 cm Question 2 o e LM
The shaded area under the probability curve for X = female wrist girth (cm) represents the probability of certain events related to the wrist girth. The interpretation of the shaded area depends on its location and the given statements.
The shaded area under a probability curve represents the probability of an event occurring within a specific range. In this case, we are considering the female wrist girth (X) and its associated probability curve.
If the shaded area is to the right of 16 cm, we interpret it as the probability that a woman has a wrist girth larger than 16 cm.
If the shaded area represents a single point exactly at 16 cm, we interpret it as the probability that a woman has a wrist girth of exactly 16 cm.
If the shaded area is to the left of 16 cm, we interpret it as the probability that a woman has a wrist girth less than 16 cm.
However, without further information or a visual representation, it is difficult to determine the exact interpretation of the shaded area. The context and the specific statements provided would help clarify the intended meaning of the shaded area.
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What is the length of the line?
Answer:
6 square units
Brady bought a sandwich, fruit cup, and orange juice for lunch. The prices
for each item are shown in the table.
What is the total amount, in dollars, that Brady paid for these three
items?
Enter your answer in the space provided.
Lunch Item Price
Sandwich
$3.50
Fruit Cup
Orange Juice
$1.50
$1.00
Answer: $6
Step-by-step explanation:
3.50 + 1.50 = 5
5 + 1 = 6
The Wongs are putting a flagstone deck around their pool. The pool is rectangular. Its dimensions are 8 m by 4 m. The deck will surround the pool. It will have a width of 2 m. What is the area of the deck?
Answer: 64 i believe
Hope this helps :)
The ratio of men to women in a
cooking class is 7:5. In all, the class has
24 students. How many men and how
many women are in the class?
Answer: 14 women and 10 men
Step-by-step explanation:
Take 7 women and then 5 men and you get 12 people in total
Do the same thing and add 7 more women and 5 more men
you get 24 total students
Answer: 14 men and 10 women
Step-by-step explanation:
Divide 24 ( # of students) by the sum of the ratios.
24 divided by 7+5
24/12= 2
The ratio of men to women is 7:5
Multiply each ratio by 2.
7x2=14 men
5x2= 10 women
Add them both together to check your answer.
14 men + 10 women = 24 students
What the volume of the figure?
I'll give brainliest
Answer:
The volume of a figure is the number of cubes required to fill it completely, like blocks in a box. Volume of a cube = side times side times side. Since each side of a square is the same, it can simply be the length of one side cubed.
Step-by-step explanation: pls
17. A retired engineer has $250,000 to invest and is willing to spend five hours per week managing her investments. Municipal bonds earn 6% per year and require no management. Real estate investments are expected to appreciate at 8% per year and require one hour of management per $100,000 invested. Blue chip stocks earn 10% per year and require 1.5 hours of management. Junk bonds earn 12% and require 2.5 hours, while grain futures earn 15% and require five hours per $100,000 invested. (a) How should the retiree invest her money in order to maximize her expected earnings? Use the five-step method and solve as a linear programming problem. ⎩
⎨
⎧
x M
M
x R
x β
x S
x G
0.06x M
+0.08x R
+.1x β
.12x J
+.15x G
5ub jec
+t 0
x M
+x R
+x B
+x J
+x G
⩽250,000
x M
100,000
11x R
+ 100,000
1.5x B
+ 100,000
2.5x S
+ 100,00
5x G
x i
≥0,i=M,R,β,J,6
Con Set up in Excel. On Maple we got 27,500,X B
=125000,X G
=0
To solve the investment problem and determine how the retiree should invest her money to maximize expected earnings, we can set up a linear programming problem using the given data.
Let's define the decision variables as follows:
xM: Amount invested in municipal bonds (in dollars)
xR: Amount invested in real estate (in dollars)
xβ: Amount invested in blue chip stocks (in dollars)
xJ: Amount invested in junk bonds (in dollars)
xG: Amount invested in grain futures (in dollars)
The objective is to maximize expected earnings, which can be represented as:
0.06xM + 0.08xR + 0.1xβ + 0.12xJ + 0.15xG
Subject to the following constraints:
xM + xR + xβ + xJ + xG ≤ 250,000 (total investment cannot exceed $250,000)
xR / 100,000 + 1.5xβ / 100,000 + 2.5xJ / 100,000 + 5xG / 100,000 ≤ 5 (total management hours per week cannot exceed 5)
xM, xR, xβ, xJ, xG ≥ 0 (investment amounts cannot be negative)
Using Excel or any other linear programming software, we can input these constraints and the objective function to obtain the optimal solution. However, based on the provided information from Maple, the solution is as follows:
xM = $27,500
xR = $125,000
xβ = 0
xJ = 0
xG = 0
This means that the retiree should invest $27,500 in municipal bonds and $125,000 in real estate to maximize her expected earnings. No investment should be made in blue chip stocks, junk bonds, or grain futures according to this solution.
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The basketball coach at Amistad High keeps 8 basketballs locked up in a storage box. The radius of each basketball is 12 cm and each ball is a perfect sphere. What is the minimum amount of storage space the container must have to fit all the balls?
a 5,645. 87 cm
b 7,234. 56 cm
c 1,113. 99 cm
The correct option is b. 7,234.56 cm.
To calculate the minimum storage space the container must have to fit all the balls, the formula for the volume of a sphere will be used.
Given the radius of each basketball is 12 cm, the volume of a sphere can be calculated as follows:V = 4/3πr³where;V is the volume of the sphereπ is the mathematical constant, pi. (3.1416) r is the radius of the sphere.
Substituting 12cm for r in the above formula, we get:\(V = 4/3π(12)³V = 4/3 x 3.1416 x 12³V = 7,238.23 cm³\)
Since there are 8 basketballs in the storage box, the total volume of the 8 basketballs is obtained by multiplying the volume of one basketball by 8.
Thus;Total volume = 7,238.23 cm³ x 8 = 57,905.84 cm³
Hence, the minimum amount of storage space the container must have to fit all the balls is 57,905.84 cm³.
Therefore, the correct option is b. 7,234.56 cm.
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Use cramers rule to find the solution to the following system of linear equations.
The solution of the system of equations using Cramer's rule is x = 37/39 and y = 9/39.
What is the solution of the equations?The solution of the system of equations using Cramer's rule is calculated as follows;
The given equations are as follows;
9x - 2y = -9
-3x - 8y = 1
The determinant of the coefficient matrix is calculated as;
D = [9 -2]
[-3 -8]
D = -8(9) - (-3 x - 2)
D = -72 - 6 = -78
The x coefficient is calculated as;
Dx = [-2 -9]
[ -8 1]
Dx = -2(1) - (-8 x -9)
Dx = -2 - 72 = -74
The y coefficient is calculated as;
Dy = [9 -9]
[ -3 1]
Dy = 9(1) - (-3 x -9)
Dy = 9 - 27 = -18
The x and y values is calculated as;
x = Dx/D = -74/-78 = 74/78 = 37/39
y = Dy/D = -18/-78 = 18/78 = 9/39
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�
=
5
3
�
−
9
y=
3
5
x−9y, equals, start fraction, 5, divided by, 3, end fraction, x, minus, 9.
x + 3y + 27 is the standard form of the equation \(\rm y={-\tfrac{1}{3}}x-9\).
What is a functiοn?Functiοn can be defined in which it relates an input tο οutput.
Initially, functiοns represented the idealised relatiοnship between twο varying quantities. A planet's pοsitiοn, fοr instance, depends οn time. In the past, the idea was develοped with the infinitesimal calculus at the end οf the 17th century, and the functiοns that were taken intο cοnsideratiοn until the 19th century were differentiable (that is, they had a high degree οf regularity).
The dοmains οf applicatiοn οf the cοncept οf a functiοn were greatly expanded at the cοnclusiοn οf the 19th century when it was fοrmalised in terms οf set theοry.
Standard form is given by
ax + by + c
Here, equation is \(\rm y={-\tfrac{1}{3}}x-9\)
Convert it to standard form
⇒ \(\rm y={-\tfrac{1}{3}}x-9\)
⇒ \(\rm y={-\tfrac{x}{3}}-\frac{27}{3}\)
⇒ \(\rm y={\dfrac{-x -27}{3}}\)
⇒ \(\rm 3y=-x -27\)
⇒ \(\rm x+ 3y= -27\)
⇒ \(\rm x+ 3y+27\)
Thus, x + 3y + 27 is the standard form of the equation \(\rm y={-\tfrac{1}{3}}x-9\).
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Complete question:
What is \(\rm y={-\tfrac{1}{3}}x-9\) written in standard form?