The angle that has a cosine of 3/5 is: ∠A
How to find trigonometric ratios?The three main trigonometric ratios are:
sin x = opposite/hypotenuse
cos x = adjacent/hypotenuse
tan x = opposite/adjacent
The given fraction is actually 3/5. This can also be written as 6/10. Thus:
From the given triangle, we can say that:
cos A = 6/10
Thus, it represents angle A.
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20 POINTS
Use the distributive property to evaluate the following expression: 9 x (4 + 9) . Show your work in your answer.
17 is the value of expression by using distributive property .
What in arithmetic is the distributive property?
This characteristic states that multiplying the total of two or more addends by a number will produce the same result as multiplying each addend separately by the number and then combining the products collectively.
By allocating a number to the integers in the brackets, it is used to quickly solve expressions. As an illustration, the phrase 4(2 + 4) would be resolved as follows if the distributive property of multiplication were used to solve it: 4(2 + 4) = (4 × 2) + (4 × 4) = 8 + 16 = 24.
9 x (4 + 9)
Use the distributive property
= 9 * 4 + 9 * 9
= 36 + 81
= 117
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If 2x – 2.12 = 9.88, what is the value of x? I need step-by-steps
Answer:
x=6
Step-by-step explanation
2x-2.12=9.88
+2.12 +2.12
2x = 12
12 divided by 2 is 6
x=6
To check you can do 12-2.12=9.88
geometric isomers: compounds that have the same molecular formula and sequence of atoms but different three-dimensional arrangements of atoms
hydrocarbon: a molecule made up entirely of hydrogen and carbon atoms
isomer: a compound that has the same molecular formula as another compound, but a different structural formula
organic compound: a member of a large class of substances whose molecules contain carbon atoms covalently bonded to other carbon atoms and commonly to hydrogen, oxygen, or nitrogen atoms
structural isomers: compounds that have the same molecular formula but whose atoms are bonded together in different sequences
That is correct. Here is a summary of the terms you defined are below.
What are hydrocarbons and isomers?Hydrocarbons are molecules composed of only carbon and hydrogen atoms. They are commonly found in fossil fuels such as natural gas, oil, and coal.
Isomers are compounds that have the same molecular formula but different structural formulas. They can have different physical and chemical properties, making them useful in various applications.
That is correct. Here is a summary of the terms you defined:
Geometric isomers: compounds that have the same molecular formula and sequence of atoms but different three-dimensional arrangements of atoms.
Hydrocarbon: a molecule made up entirely of hydrogen and carbon atoms.
Isomer: a compound that has the same molecular formula as another compound, but a different structural formula.
Organic compound: a member of a large class of substances whose molecules contain carbon atoms covalently bonded to other carbon atoms and commonly to hydrogen, oxygen, or nitrogen atoms.
Structural isomers: compounds that have the same molecular formula but whose atoms are bonded together in different sequences.
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Divide this for me someone plssss
Answer:
It is the 3rd one
Step-by-step explanation:
Answer:
C.
Step-by-step explanation:
x-6-6/x+4
PLS HELP QUICK ILL GIVE BRANILYIST!!!!!!
Answer:
(a) To the nearest tenth:
π = 3.1, √3 = 1.7, 2√3 = 3.4, √5 = 2.2
(b) √3, √5, π, 2√3
Suppose the real risk-free rate is 2.85% and the future rate of inflation is expected to be constant at 2.10%. What rate of return would you expect on a 1-year Treasury security, assuming the pure expectations theory is valid? Include cross-product terms, i.e., if averaging is required, use the geometric average. (Round your final answer to 2 decimal places.)
a. 5.01% b. 2.85% c. 4.95% d. 2.91% e. 2.16%
Answer:Corporations step up their expansion plans and thus increase their demand for capital.
Step-by-step explanation:
20 is what percent of 52? Solve with an Equation
Answer:
38.46
Step-by-step explanation:
Percentage Calculator: 20 is what percent of 52? = 38.46.
4e-4=e-4 I need a step by step answer!! Thanks!
Answer:
4e-4=e-4
subtract 4 from both sides
4e=e
subtract e from both sides
4e-e=0
4e-e equals 3e
3e= 0
divide by 3 both sides
3/3=0/3
e=0
Answer:
e = 0
Step-by-step explanation:
4e - 4 = e - 4 ( subtract e from both sides )
3e - 4 = - 4 ( add 4 to both sides )
3e = 0 ( divide both sides by 3 )
e = 0 ÷ 3 = 0
arrange the following in order of increasing radius as predicted: ne, na, li+, na+
The order of increasing radius as predicted is:
li+ < na+ < ne < na
Based on the periodic table, the trend for atomic radius is that it decreases from left to right across a period and increases down a group. Therefore, we can predict that the order of increasing atomic radius for the given ions and element is as follows: Ne < Na+ < Li+ < Na. This is because Ne is a noble gas with a full valence shell and the smallest atomic radius. Na+ and Li+ have lost one and two electrons respectively, resulting in a decrease in electron-electron repulsion and a smaller ionic radius than their respective neutral atoms. Finally, Na, being a larger atom than Li, will have a larger atomic radius due to more electron shells
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What is 10 inches to 1 yard for ratios
Answer:
the answer is 10:1
Step-by-step explanation:
i hope it helps
The scale of a map is 1:250000. The actual distance between two cities is 80 km. Calculate this distance on the map. Give your answer in centimetres.
Hi :) I'm working with rational and irrational numbers. There's a problem .025 with the 25 repeating. If anyone could lend some help on how to solve an equation like this. It would be greatly appreciated.
3. Walter has placed 200 in an account that pays simple interest of 8% annually. How much interest will
Walter have after 3 years?
whats the formula helpppppppppp
The base of the pyramid has six sides then the pyramid is known as a hexagonal pyramid.
What is a pyramid?The pyramid is similar to the cone but the pyramid has a number of triangular faces based on the base of the polygon.
The pyramid is given below.
The base of the pyramid has six sides then the pyramid is known as a hexagonal pyramid.
Then the correct option is B.
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In the diagram, the circle will be dilated by a scale factor of 3 about the origin. The points C, A, and B map to C', A', and B' after the dilation. What is the length of ? Use the distance formula to help you decide: . The graph shows a circle with three points, A is equal to (8, 15), B is equal to (12, 13), and C is equal to (8, 10). C is the center of the circle. A line is joining AC and BC A. 24 units B. 45 units C. 21 units D. 15 units E. 5 units Reset Next
The length of C'B' after dilation using a scale factor of 3 is: D. 15 units.
What is Dilation?Dilation is the reduction or enlargement of an image by a scale factor, whereby the original and new images are similar.
Applying the distance formula, we have:
BC = √[(8−12)² + (10−13)²]
BC = √(−4)² + (−3)²]
BC = √(16+9)
BC = √25
BC = 5 units
Applying the scale factor:
Length of C'B' = 3(5) = 15 units.
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Please help asap! q = ___ units
The length of q is 16 units in the given triangle.
Explain about substitution method ?
The substitution method is a technique for solving systems of equations in algebra. A system of equations is a set of two or more equations that must be solved simultaneously. The substitution method involves solving one equation for one variable, and then substituting the resulting expression into the other equation to eliminate that variable.
Here are the general steps for solving a system of equations using the substitution method:
According to the question :
To solve for q, Lets us assume a triangles ABC and ACD are similar. Therefore, we can set up the following proportion:
AC/AD = AB/AC
Substituting the given values, we get:
36/AD = 16/36
Multiplying both sides by AD and simplifying, we get:
AD = (36*16)/36 = 16 units
Therefore, the length of q is 16 units.
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True or False?
Point (5,y) is a solution of the inequality y+9x>0 for any value of y.
Answer:
False
Step-by-step explanation:
If possible, can anyone help with these two? --sorry, im dumb ;-;-- THANKS!
Answer:
1) 3^2 or 9
2)5^18
Step-by-step explanation:
Ok but you have to hit that crown :D
Simplify: 3^8x3^4 = 3^12
3^2x3^8=3^10
3^12/3^10 = 3^2 or 9
5^3^6=5^18
Hope this helps :D
Question 5
5 pts
Elijah spent $5.25 for lunch every day for 5 school days. He spent $6.75 on Saturday.
How much did he spend in all?
Answer:
$35
Step-by-step explanation:
$5.25 x 5 days=$26.25
then $26.25 + 6.75= $33
In a histogram, the vertical line (dimension) shows the _____________, while the horizontal line (dimension) shows the _______________.
In the Histogram the horizontal line (dimension) represents the value of the selected collection plan element. The vertical line (dimension) represents the count or sum of occurrences of the primary collection element on the horizontal line.
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20 points!!
What are the next three terms of the arithmetic sequence -18, -13, -8, -3,…?
Answer:
3, 8, 13, 18
Step-by-step explanation:
A side of the triangle below has been extended to form an exterior angle of the angles of 155°. Find the value of x.
The question is about an exterior angle of a triangle. Given that the exterior angle of the angles of a triangle is 155° and two interior angles are 20° and 65°. We are to find the value of x as shown in the figure below.
We know that the sum of the angles of a triangle is 180°.
The exterior angle of a triangle is equal to the sum of its interior opposite angles. So, we have;
20° + 65° + x = 155°85°
155°85°= 155°
x = 155° - 85°
x = 70°
Therefore, the value of x is 70°.
Therefore, the correct option is letter B.
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a box contains six red light bulbs, nine blue light bulbs, and five green light bulbs. what is the probability of randomly selecting a red light bulb? (round to 2 decimal places) what is the probability of randomly selecting a blue light bulb? (round to 2 decimal places) what is the probability of randomly selecting a red light bulb or a blue light bulb? (round to 2 decimal places) what is the probability of randomly selecting a green light bulb? (round to 2 decimal places) what is the probability of randomly selecting a blue or a green light bulb? (round to 2 decimal places)
Using it's definition, the probabilities are given as follows:
Red: 0.3 = 30%.Blue: 0.45 = 45%.Red or Blue: 0.75 = 75%.Green: 0.25 = 25%.Blue or Green: 0.6 = 60%.What is a probability?The probability of an event in an experiment is calculated as the number of desired outcomes in the context of the experiment divided by the number of total outcomes in the context of the experiment.
The total number of bulbs in this problem is given as follows:
6 + 9 + 5 = 20.
Six of them are red, hence the probability of a red bulb is:
p = 6/20 = 0.3 = 30%.
Nine of them are blue, hence the probability of a blue bulb is:
p = 9/20 = 0.45 = 45%.
Five of them are green, hence the probability of a green bulb is:
p = 5/20 = 0.25 = 25%.
The probability of a red or blue bulb is:
p = 0.3 + 0.45 = 0.75.
The probability of a blue or green bulb is:
p = 0.45 + 0.25 = 0.6.
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If x=3 y=-5 and z=-2 what is 90xyz ➗xy? PEMDAS PLEASE HELP! :(
Step-by-step explanation:
90×3×-5×-2/3×-5
2700/-15
-180
Solve the given system using elimination.
Answer:
s = -1
r = 2
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
2r + 8s = -4
7r = -6s + 8
Step 2: Rewrite Systems
2r + 8s = -4
Factor: 2(r + 4s) = -4Divide 2 on both sides: r + 4s = -2Subtract 4s on both sides: r = -4s - 2Multiply -7 on both sides: -7r = 28s + 14Step 3: Redefine Systems
-7r = 28s + 14
7r = -6s + 8
Step 4: Solve for s
Elimination
Combine equations: 0 = 22s + 22Isolate s term: -22 = 22sIsolate s: -1 = sRewrite: s = -1Step 5: Solve for r
Define equations: 2r + 8s = -4Substitute in s: 2r + 8(-1) = -4Multiply: 2r - 8 = -4Isolate r term: 2r = 4Isolate r: r = 2Answer:
r = 2, s = - 1
Step-by-step explanation:
Given the 2 equations
2r + 8s = - 4 → (1)
7r = - 6s + 8 ( add 6s to both sides )
7r + 6s = 8 → (2)
Multiplying (1) by 7 and (2) by - 2, then adding will eliminate the r- term
14r + 56s = - 28 → (3)
- 14r - 12s = - 16 → (4)
Add (3) and (4) term by term to eliminate r , that is
44s = - 44 ( divide both sides by 44 )
s = - 1
Substitute s = - 1 into either of the 2 equations and solve for r
Substituting into (1)
2r + 8(- 1) = - 4
2r - 8 = - 4 ( add 8 to both sides )
2r = 4 ( divide both sides by 2 )
r = 2
solution is r = 2 , s = - 1
Find the value of x in each triangle. 2x, 2x, x
Answer:
36
Step-by-step explanation:
\(2x + 2x + x = 180 \\ 5x = 180 \\ x = 36\)
13. Erica has a home that is appreciating in value over the past 4 years. The data for the growth of her home'svalue is shown below.lifelongAlgebra 1BCredit 5L4L - Algebra 1B (2020) Page 51YearAmount2016$400,0002017I$420,0002018$441,00020195463,050What kind of function can be used to best represent this data linear, quadratic or exponential? Explain yourreasoning (2 points)
Mathematical Models
Given a set of two-variable data, we can tell if there is a linear relationship between them by analyzing the change of values of y with respect to the change of values of x.
If the relationship was linear, the change in values of y should be the same when the change in x is equal.
Note that between 2016 and 2017 there was only one year and the value of the house increased by $20,000.
For the next two years, the value increased by $21,000. This means the relationship is not linear.
The possible exponential relationship is also easy to spot. If the ratio between the values of y is constant, then it's an exponential function.
Testing the ratios:
420,000 / 400,000 = 1.05
441,000 / 420,000 = 1.05
463,050 / 441,000 = 1.05
Since the ratio is constant, the growth can be modeled with an exponential function.
18 A = {multiples of 5 between 14 and 26}
B = {odd numbers between 14 and 26}
(a) List the members of A u B
(b) Describe the members of A n B
Answer:
13;14;17;19;20;21;23;25
Step-by-step explanation:
this is so simple
What two processes cause genetic variation in meiosis?
Two processes are ,independent assortment and crossing over or recombination.
independent assortment
Independent assortment is the process where the chromosomes move randomly to separate poles during meiosis. A gamete will end up with 23 chromosomes after meiosis, but independent assortment means that each gamete will have 1 of many different combinations of chromosomes.
Crossing over or Recombination
Crossing over is a cellular process that happens during meiosis when chromosomes of the same type are lined up.
It refers to the exchange of genetic material between non-sister chromatids of homologous chromosomes. It occurs at the pachytene stage of prophase 1 in meiosis 1. It is the event that leads to recombination.
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Use the following information for questions 1 - 24: Security R(%) 1 12 2 6 3 14 4 12 In addition, the correlations are: P12 = -1, P13 = 1, P14 = 0. Security 1+ Security 2: Short Sales Allowed Using se
The correlation coefficients and security returns provided suggest a relationship between security 1 and security 2.
What is the relationship between security 1 and security 2 based on the provided data?The given information includes security returns and correlation coefficients between different securities. Based on the data, it is evident that there is a relationship between security 1 and security 2. The correlation coefficient P12 is -1, indicating a perfect negative correlation between the two securities. This means that when security 1's returns increase, security 2's returns decrease, and vice versa.
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