Which of the following expressions is equal the expression of 4x - 2(3x - 9)
The following expressions 4x - 2(3x - 9) is equal the expression of
-2x + 18.
What is an expression?An expression is a set of terms combined using the operations +, -, x or ÷.
Given that:
4x - 2 (3x-9)
= 4x - 6x +18
= -2x +18
Hence, the expression 4x - 2 (3x-9) is equal to -2x+18.
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Find x. Round your answer to the nearest tenth of a degree.
Answer: [tex]x=49.6^{\circ}[/tex]
Step-by-step explanation:
In the given figure , we have right triangle with hypotenuse 21 units and the side opposite to angle x is 16 units.
According to the trigonometry,
[tex]\sin \theta = \dfrac{\text{side opposite of }\theta}{\text{Hypotenuse}}[/tex]
So for , the given figure , we have
[tex]\sin x = \dfrac{16}{21}\\\\\Rightarrow\ \sin x\approx0.7619\\\\\Rightarrow\ x=\sin^{-1}(0.7619)=0.8662\text{ radian}[/tex] (using sine calculation)
Convert radian into degrees , we have
[tex]x=0.8662\times\dfrac{180^{\circ}}{\pi}\\\\=0.8662\times\dfrac{180^{\circ}}{3.14159}=49.6319852107\approx49.6^{\circ}[/tex] [Round to the nearest tenth.]
Hence, [tex]x=49.6^{\circ}[/tex]
In the given right triangle, x = 49.6°
Missing angles of right trianglesThe triangle shown is a right triangle
The angle, θ = x
The opposite = 16
The hypotenuse = 21
Using the formula:
[tex]sin \theta = \frac{opposite}{hypotenuse}[/tex]
Substitute opposite = 16, hypotenuse = 21, and θ = x into the formula above to solve for x
[tex]sin x = \frac{16}{21} \\\\sin x = 0.7619\\\\x = sin^{-1}0.7619\\\\x=49.6^0[/tex]
Therefore, in the given right triangle, x = 49.6°
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7/2x-2=28-4x solve for x
If a quadratic function has two zeros, 112 and 122, then what is its axis of symmetry?
Consider a company that selects employees for random drug tests. The company uses a computer to randomly select employee numbers that range from 1 to
6857
6857. Find the probability of selecting a number divisible by 1000. Find the probability of selecting a number that is not divisible by 1000.
The probability of selecting a number divisible by 1000 from the range of 1 to 6857 is approximately 0.0008763. The probability of selecting a number that is not divisible by 1000 is approximately 0.9991237.
Explanation:To find the probability of selecting a number divisible by 1000, we need to determine the total number of possible outcomes and the number of favorable outcomes. There are a total of 6857 possible outcomes since the company selects employee numbers ranging from 1 to 6857. For a number to be divisible by 1000, it must end with three zeros, so we need to find how many numbers satisfy this condition between 1 and 6857.
Since 1000 is the smallest number divisible by 1000, we can calculate the number of favorable outcomes by finding the largest integer that satisfies the condition. In this case, it is 6000. Therefore, there are 6 favorable outcomes.
The probability of selecting a number divisible by 1000 is calculated by dividing the number of favorable outcomes by the total number of possible outcomes:
Probability = Favorable outcomes / Total outcomes = 6 / 6857 ≈ 0.0008763.
The probability of selecting a number that is not divisible by 1000 can be calculated as the complement of the probability of selecting a number divisible by 1000:
Probability(not divisible by 1000) = 1 - Probability(divisible by 1000) ≈ 1 - 0.0008763 ≈ 0.9991237.
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Can the polynomial below be factored into a perfect square? If not, select the answer that best describes why not.
64x^2+49x+8
A.
The x^2 coefficient does not permit the factoring.
B.
The x^2 coefficient does permit the factoring, but the x coefficient does not permit the factoring.
C.
The constant value does not permit the factoring.
D.
The polynomial may be factored into a perfect square.
Answer:
Option B is correct.
Step-by-step explanation:
We will work with the formula : [tex](a+b)^{2}[/tex]
= [tex]a^{2}+2ab+b^{2}[/tex]
Given polynomial is :
[tex]64x^{2} +49x+8[/tex]
here a = [tex]\sqrt{64x^{2} } =8x[/tex]
b = [tex]\sqrt{8}= 2\sqrt{2}[/tex]
2ab = [tex]2*8x*2\sqrt{2} =32\sqrt{2}x[/tex]
Now, we can see that the middle term should be [tex]32\sqrt{2} x[/tex] but in the question, it is given 49x
So, option B is true that - The x^2 coefficient does permit the factoring, but the x coefficient does not permit the factoring.
h=7 + 29t-16t^2 find all values of t for which the balls height is 19ft
If it takes 0.20 dollars to buy a mexican peso and 0.60 dollars to buy a brazilian real, then it takes _____ pesos to buy one brazilian real.
It will takes 3 mexican pesos to buy one brazilian real .
According to the given condition
It takes 0.20 dollars to buy a mexican peso and 0.60 dollars to buy a brazilian real,
We have to determine that it takes how many mexican pesos to buy one brazilian real.
This question can be solved by applying the principles of unitary method
One peso will be bought in $ 0.20
One real will be bought in $ 0.60
1 dollar is equivalent to
[tex]\rm 1 \; dollar = \dfrac{1}{0.2} peso \\\\\rm 1 \; dollar = \dfrac{1}{0.6 } \; real[/tex]
[tex]\rm 1/0.2\; peso = 1/0.6 \; real \\1 \; real = 0.6/0.2 = 3 \; peso[/tex]
So it will take 3 pesos to buy one real
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On September 30, picture perfect physicians invested$100,000 in new medical equipment. What is the new assets, liabilities and equity
2w+2l=24 what is the value of l
A right triangle has side lengths AC = 7 inches, BC = 24 inches, and AB = 25 inches.
What are the measures of the angles in triangle ABC?
Answer:
90, 74, 16 degrees
Step-by-step explanation:
Given that a right triangle has side lengths AC = 7 inches, BC = 24 inches, and AB = 25 inches.
We find that
AC square + BC square = AC square
[tex]7^2 +24^2 =625 = 25^2[/tex]
So angle C = 90 degrees.
sin A = 24/25
So A = 74 degrees and B = 16 degrees
100 meter long Christmas train needs 30 seconds to cross a 400nmetrr long bridge assuming the train goes at a steady speed how fast is it
6x2=(3×2)×___=___
6×4=2×(6×___)=___
2×(6×4)=____×8=____
I really, really need help with my Accounting II class! I need 1-4 answered along with the bullet points at the bottom. Thank you in advance if anyone can help, this determines if I graduate!
Your manufacturing company incurs several costs to make the finished product, which are cans of eco-friendly paint. You purchase 100 empty cans at $2.00 each and 200 labels for the cans of paint at $1.00 each. You have two employees who bottle the paint into the cans and one additional employee who places a label on each can. You take a printout from your clock where the employees have entered their time and find that the wages due to these three employees is $2,000.00. You must also pay payroll taxes in the amount of $140.00 total for these three employees. A number of other costs incurred must be taken into consideration as well: depreciation on the factory machine of $150.00, utilities of $200.00, prepaid insurance of $600.00, and property taxes on your building of $2,000.00.
1) Prepare the journal entries to record the purchase of the raw materials, the labor incurred, and the overhead incurred.
2) Assume that $100.00 of the raw materials and $1,000.00 of the indirect materials were used. Prepare the journal entries to assign these materials to the jobs and overhead.
3) Of the $2,140.00 in factory labor, $500.00 was attributed to indirect labor costs. Prepare the journal entry to assign the labor to jobs and overhead.
4) You determine that direct labor cost is the activity base for determining the predetermined overhead rate. The following information is known about the estimated annual costs:
overhead costs: $18,000.00
direct labor costs: $25,000.00
-What is the predetermined overhead rate?
-What is the journal entry to assign overhead to jobs?
-Prepare the journal entry to transfer costs to Finished Goods.
-A sale of the goods takes place. The goods are sold for $5,000.00. Prepare the journal entry to record this sale.
The coordinates of △ABC△ABC are A(12,8), B(10,18), C(4,16)A(12,8), B(10,18), C(4,16). After a dilation, the coordinates are A'(6,4), B'(5,9), C'(2,8)A′(6,4), B′(5,9), C′(2,8). Find the scale factor.
Answer: [tex]\dfrac{1}{2}[/tex]
Step-by-step explanation:
The dilation is a transformation which makes similar shapes.
We know that In two similar geometric figures, the ratio of their corresponding corresponding x-coordinate is known as the scale factor.
For the given situation, the x-coordinate of A in pre-image = 12
The x-coordinate of A' in image = 6
Then , the scale factor for the dilation is given by :-
[tex]k=\dfrac{6}{12}=\dfrac{1}{2}[/tex]
Hence, the scale factor = [tex]\dfrac{1}{2}[/tex]
a local charity held a crafts fair selling donated,handmade items. Total proceeds from the sale were $1,875. A total of 95 items were sold,some at $15 each and the rest at $25 each. Let x be the number of $15 items and y the number of $25 items. How many items sold at $25?
Answer:
It’s 30
Step-by-step explanation:
105,159 rounded to the nearest ten thousand
Suppose a basketball player has made 184 out of 329 free throws. If the player make the next two free throws, I will pay you $24. Otherwise you pay me $12. Find the expected value of the proposition
Final answer:
Expected value of proposition will be 20.134.
Explanation:
Given that the player made 184 out of 329 throws, the probability of making the next throw will be:
P(x)=[Number of shots made]/[Total number of throws]
=184/329
=0.559
Thus the expected value of proposition will be:
0.599 x 24+0.559 x 12
=20.134
James deposits $600 in an account that pays 4% simple interest, and $1200 in a second account which has a higher interest rate but is more risky. What interest rate must he get on the second account in order to earn at least $132 in interest for the year?
Given that x has a Poisson distribution with
mu
μ
equals
=
13
13, what is the probability that x
equals
=
5
5?
P(
5
5)
almost equals
≈
0.9930
0.9930 (Round to four decimal places as needed.)
A triangular lake-front lot has a perimeter of 1300 feet. One side is 300 feet longer than the shortest side, while the third side is 400 feet longer than the shortest side. Find the lengths of all three sides.
A) 200 ft, 500 ft, 600 ft
B) 300 ft, 300 ft, 300 ft
C) 100 ft, 200 ft, 300 ft
D) 300 ft, 600 ft, 700 ft
A rectangular floor is 21 ft long and 12ft wide. Reuben wants to carpet the floor with carpet tiles sold by the square yard. Use the facts to find the area in square yards.
Conversion facts for length:
1 foot (ft) = 12 inches
1 yard (yd) =3 feet
1 yard (yd) = 36 inches
1 yard = 3 feet:
21 feet / 3 ft = 7 yards
12 feet / 3 feet = 4 yards
7 x 4 = 28 square yards
he will need 28 tiles
The area of the rectangular floor will be 28 square yards.
What is the area of the rectangle?Let L be the length and W be the width of the rectangle.
Then the area of the rectangle will be
Area of the rectangle = L × W square units
A rectangular floor is 21 ft long and 12 ft wide.
We know that 1 foot = 1/3 yards.
Then the dimension of the rectangle in yards will be
L = 21 x 1/3 = 7 yards
W = 12 x 1/3 = 4 yards
Then the area of the rectangle will be
A = 7 x 4
A = 28 square yards
The area of the rectangular floor will be 28 square yards.
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A pair of dice are rolled. What is the probability of getting a sum greater then 7?
The probability of rolling a sum greater than 7 with a pair of dice is [tex]\( \frac{5}{12} \).[/tex]
To find the probability of getting a sum greater than 7 when rolling a pair of dice, let's first list all the possible outcomes when rolling two dice:
1. (1,1)
2. (1,2)
3. (1,3)
4. (1,4)
5. (1,5)
6. (1,6)
7. (2,1)
8. (2,2)
9. (2,3)
10. (2,4)
11. (2,5)
12. (2,6)
13. (3,1)
14. (3,2)
15. (3,3)
16. (3,4)
17. (3,5)
18. (3,6)
19. (4,1)
20. (4,2)
21. (4,3)
22. (4,4)
23. (4,5)
24. (4,6)
25. (5,1)
26. (5,2)
27. (5,3)
28. (5,4)
29. (5,5)
30. (5,6)
31. (6,1)
32. (6,2)
33. (6,3)
34. (6,4)
35. (6,5)
36. (6,6)
Out of these 36 possible outcomes, the sums greater than 7 are:
12, 17, 18, 22, 23, 24, 27, 28, 29, 30, 32, 33, 34, 35 and 36.
There are 15 favorable outcomes. So, the probability of getting a sum greater than 7 is:
[tex]\[ \frac{15}{36} = \frac{5}{12} \][/tex]
Find the volume v of the described solid s. the base of s is an elliptical region with boundary curve 4x2 + 9y2 = 36. cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.
The volume [tex]\( V \)[/tex] of the solid [tex]\( S \)[/tex] is 32 cubic units.
To find the volume [tex]\( V \)[/tex] of the solid [tex]\( S \),[/tex] where the base is an elliptical region defined by the equation [tex]\( 4x^2 + 9y^2 = 36 \),[/tex] and the cross-sections perpendicular to the [tex]\( x \)[/tex]-axis are isosceles right triangles with their hypotenuse lying on the base, we proceed as follows:
The equation [tex]\( 4x^2 + 9y^2 = 36 \)[/tex] represents an ellipse centered at the origin with semi-major axis [tex]\( \sqrt{9} = 3 \)[/tex] along the [tex]\( y \)[/tex]-axis and semi-minor axis [tex]\( \sqrt{4} = 2 \)[/tex] along the [tex]\( x \)[/tex]-axis.
Each cross-section perpendicular to the [tex]\( x \)[/tex]-axis is an isosceles right triangle with its hypotenuse on the elliptical base. The height [tex]\( h(x) \)[/tex] of each triangle at a given [tex]\( x \)[/tex] is determined by the elliptical equation.
For a fixed [tex]\( x \),[/tex] the corresponding [tex]\( y \)[/tex] values on the ellipse satisfy [tex]\( 4x^2 + 9y^2 = 36 \).[/tex] Solving for [tex]\( y \)[/tex], we get:
[tex]\[ y = \frac{2}{3} \sqrt{36 - 4x^2} \][/tex]
The height of the triangle is [tex]\( \frac{2}{3} \sqrt{36 - 4x^2} \).[/tex]
To find the volume [tex]\( V \)[/tex] of the solid [tex]\( S \),[/tex] integrate the area of each triangular cross-section along the [tex]\( x \)[/tex]-axis from [tex]\( x = -3 \) to \( x = 3 \):[/tex]
[tex]\[ V = \int_{-3}^{3} \text{Area of triangle at } x \, dx \][/tex]
The area of each triangle is [tex]\( \frac{1}{2} \cdot \text{base} \cdot \text{height} = \frac{1}{2} \cdot 2h(x) \cdot h(x) = h(x)^2 \).[/tex]
Thus,
[tex]\[ V = \int_{-3}^{3} h(x)^2 \, dx = \int_{-3}^{3} \left( \frac{2}{3} \sqrt{36 - 4x^2} \right)^2 \, dx \][/tex]
[tex]\[ V = \int_{-3}^{3} \frac{4}{9} (36 - 4x^2) \, dx \][/tex]
[tex]\[ V = \frac{4}{9} \int_{-3}^{3} (36 - 4x^2) \, dx \][/tex]
[tex]\[ V = \frac{4}{9} \left[ 36x - \frac{4x^3}{3} \right]_{-3}^{3} \][/tex]
Solving further,
[tex]\[ V = \frac{4}{9} \left[ \left( 36 \cdot 3 - \frac{4 \cdot 27}{3} \right) - \left( 36 \cdot (-3) - \frac{4 \cdot (-27)}{3} \right) \right] \][/tex]
[tex]\[ V = \frac{4}{9} \left[ (108 - 36) - (-108 + 36) \right] \][/tex]
[tex]\[ V = \frac{4}{9} \left[ 72 \right] \][/tex]
[tex]\[ V = \frac{4 \cdot 72}{9} \][/tex]
[tex]\[ V = 32 \][/tex]
Therefore, the volume [tex]\( V \)[/tex] of the solid [tex]\( S \)[/tex] is 32 cubic units.
The sum of three consecutive integers is −261−261. Find the three integers.
-261 / 3 =-87
-87 + -86 + -88 = -261
g(x) = x2 + 2, find g(3).
Answer:
Plug in 3 for x on the right side
3^2+2,
3 squared equals 9 plus 2 equals 11
Final answer: 11
Step-by-step explanation:
.
EASY 5 POINTS!! Which expression gives the correct volume of the figure?
Answer:
(3×2×1)+(3×1×1)
Step-by-step explanation:
AS you can se ein the figure, the figure is not a solid full rectangula prism, it is made out of two prisms the first one is the 3x2x1 rectangular prism, and the second is the 3x1x1 square prism, so by adding the volume of those two you can figure out the volume of the whole figure that is why the answer to the problem is (3×2×1)+(3×1×1)
Which pairs of triangles are similar? Check all that apply.
Answer:
option (2) and (5) are correct.
ΔABC ≅ ΔJLK
ΔDEF ≅ ΔGHI
Step-by-step explanation:
Given four right angled triangle with measure of sides.
We have to check for the pairs of triangle to be similar.
Two triangles are said to be similar if their corresponding angles are equal or their corresponding sides are same ratio.
Consider, ΔABC and ΔJLK.
∠C = ∠L = 90° (given)
Also ratio of corresponding sides are same ratio, that is
[tex]\frac{AC}{LJ}=\frac{14}{7}=\frac{2}{1}[/tex]
Also, [tex]\frac{CB}{KL}=\frac{20}{10}=\frac{2}{1}[/tex]
Thus, ΔABC ≅ ΔJLK.
Option (5) is correct.
Consider, ΔDEF and ΔGHI.
∠I = ∠F = 90° (given)
Also ratio of corresponding sides are same, that is
[tex]\frac{DF}{GI}=\frac{8}{12}=\frac{2}{3}[/tex]
Also, [tex]\frac{EF}{HI}=\frac{10}{15}=\frac{2}{3}[/tex]
Thus, ΔDEF ≅ ΔGHI.
Option (2) is correct.
Thus, option (2) and (5) are correct.
The total interest paid on a 3-year loan at 9% interest compounded monthly is $1505.82 determine the monthly payment for the loan.
The CEO of a corporation has $10,000 to give as bonuses. The amount of each employee receives depends on how many employees receive a bonus. This can be modeled as
y = 10000/x
What example is this variation?
The given model of the equation y = 10000/x represents inversely proportional variation.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
Arithmetic operations can also be specified by the addition, subtract, divide, and multiply built-in functions.
The model of the equation is given in the question, as follows:
y = 10000/x
A corporation's CEO has $10,000 available for bonuses. The amount each employee earns is determined by the number of employees that receive a bonus.
We can see that the given equation characterizes inversely proportional variation.
Hence, this variation is an example of inversely proportional.
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