Answer:
Trigonometric equations are, as the name implies, equations that involve trigonometric functions. Similar in many ways to solving polynomial equations or rational equations, only specific values of the variable will be solutions, if there are solutions at all. Often we will solve a trigonometric equation over a specified interval. However, just as often, we will be asked to find all possible solutions, and as trigonometric functions are periodic, solutions are repeated within each period. In other words, trigonometric equations may have an infinite number of solutions. Additionally, like rational equations, the domain of the function must be considered before we assume that any solution is valid. The period of both the sine function and the cosine function is 2π. In other words, every 2π units, the y-values repeat. If we need to find all possible solutions, then we must add 2πk, where k is an integer, to the initial solution. Recall the rule that gives the format for stating all possible solutions for a function where the period is 2π:
sinθ=sin(θ±2kπ)
There are similar rules for indicating all possible solutions for the other trigonometric functions. Solving trigonometric equations requires the same techniques as solving algebraic equations. We read the equation from left to right, horizontally, like a sentence. We look for known patterns, factor, find common denominators, and substitute certain expressions with a variable to make solving a more straightforward process. However, with trigonometric equations, we also have the advantage of using the identities we developed in the previous sections.
Step-by-step explanation:
Trigonometric equations are, as the name implies, equations that involve trigonometric functions. Similar in many ways to solving polynomial equations or rational equations, only specific values of the variable will be solutions, if there are solutions at all. Often we will solve a trigonometric equation over a specified interval.
A student was studying the relationship between how much money students spend on food and on entertainment per week. Based on a sample size of 270, he calculated a correlation coefficient (r) of .013 for these two variables. Which of the following is an an appropriate interpretation?
a. This low correlation of .013 indicates there is no relationship.
b. There is no linear relationship but there may be a nonlinear relationship.
c. This correlation indicates there is some type of linear relationship.
Answer:
The answer is "Option b".
Step-by-step explanation:
In this question, the value of the correlation coefficient is 0.013 from the given information. It is the equation, which realized the indeed closer their correlation coefficient is to -1 or 1, the greater the positive correlation, although in this case, the value of the correlation coefficient is 0.013, close to "0".
Could I plz have help of this
Answer:
wow um ok ill try?(if that counts)
Step-by-step explanation:
8x to 30y?
Zeke had 9 dvds. His mother bought d more DVD. Write an expression that shows how many dvds zeke has now
Answer: 9+d=x or x=9+d
d-the new dvds
x-the unknown total
9-the dvds Zeke owned before
this is a part of science too so pleae help
plsss i beg u hrlppp
Answer:
Step-by-step explanation:
collinear means co:together, or with like a coworker, and linear:line(s)
since points a, o, and d are on the same line, they are indeed collinear
triangle CDE is an equilateral since lines CE and ED are equal. 180/3 is 60, therefore each angle of triangle CDE has 60 degrees
triangle BCE: a right triangle.angle B is 90 degrees, C is 60 degrees E is 30 degrees.
Triangle ABE is a obtuse triangle, one angle is an obtuse angle, hence the name.angle A seems to be 120 Degrees and Angles Band E seem to be 30 degrees each
help ME PLS
WILL MARK BRAINLIEST
Answer:
62b+27nb-12n-12
Step-by-step explanation:
u gotta combine like terms
Answer:
-0.7 .................
Lin’s second pan has a length of \frac{8}{3} inches, a width of \frac{15}{4} inches, and a height of \frac{3}{2} inches.
Answer:
15
Step-by-step explanation: so i did 8/3 x 15/4 x 3/2 and got 15
There are 564 men and women working in a facten
There are twice as many women as men.
How many men are working in the factory
Plz help if you can help
Answer:
A) 2x = -20 and C) x = -10
Step-by-step explanation:
2/5x = -4
5 • 2/5x = 5(-4) Multiply terms to eliminate the denominator
2x = -20 Cancel the multiplied terms
2x/2 = -20/2 Divide
x = -10
Hope this helps
In which of the following expressions is 5 a coefficient?
19x + 4y + 5
7x2 + 4x5 + 2
x + 3 + 2 – x
5y + 4z
Answer:
5y + 4z
Step-by-step explanation:
hope that helps :)
Please help me! I’m begging you I’ll mark you brainly! I need it by now
Answer:
Boxes at the top are as follows
Monomial. 1. 4x
Binomial. 2. 4x+2
Trinomial. 3.
Polynomial. More than 3.
[tex] {5x}^{4} + {2x}^{3} + {12x}^{2} + 135 [/tex]
This would be an example of a polynomial ^
Omit the next highest term to get a trinomial etc
1. 4th degree. Leading term:
[tex] {x}^{4} [/tex]
Leading coefficient: x
2. 2nd degree. Leading term:
[tex] - {7x}^{2} [/tex]
Leading coefficient: -7x
It's a little confusing to read but that should be everything. Sorry it's not organized better
the length of a living room is 12 feet and its width is 10 1/2 feet. The length of the room is being expanded by x feet. Select all the expressions that represent the area of the living room in square feet.
Answer:
(12+x)(10 1/2+x)
Step-by-step explanation:
A jar is filled with buttons of various colors. If the jar has a total of 420 buttons and 85% of the buttons are green, how many green buttons are in the jar?
Group of answer choices
heyyy :) what is 15/ 4 ÷ 5/8
Answer:
6
Step-by-step explanation:
15/4 / 5/8 =
15/4 x 8/5=
120/40=
120/40 / 20/20= 6
hope it helpls
Answer:
6
Step-by-step explanation:
[tex]\frac{15}{4}[/tex] ÷ [tex]\frac{5}{8} =[/tex] [tex](\frac{15}{4} )(\frac{8}{5} )= \frac{120}{20} = 6[/tex]
Are buying a drink and buying popcorn independent or dependant events
You use 3
3
cans of soup to serve 5
5
people.
If you want to serve 20
20
people, what should you d
Answer:
I might be small brain (which i am)
Step-by-step explanation:
But given the pattern i think it is 18 cans of soup for 20 people
round 429,713 to the nearest tens
will make brainliest
Answer:
429.7
Step-by-step explanation:
Answer:
429,710
Step-by-step explanation:
Given the sets above, select all (or the null set) of the element of: B
Given:
Universal set = {a, b, c, d, e, f, g, h}
A = {a, b, c, d}
B = {a, d, e}
C= {c, f, g, h}
To find:
The elements of set B'.
Solution:
Let universal set be U.
U = {a, b, c, d, e, f, g, h}
We know that,
Compliment of a set = Universal set - Set
It means,
[tex]B'=U-B[/tex]
[tex]B'=\{a, b, c, d, e, f, g, h\}-\{a,d,e\}[/tex]
[tex]B'=\{b, c,f, g, h\}[/tex]
Therefore, only b, c, f, g, h are the elements of set B'.
Solve for x:
600
x + 124
Just enter the number.
a mark is made on a long pole so that the ratio of two parts is 7:5 if the longer part is 35cm what is the length of each pole?
Step-by-step explanation:
Let the two parts be 7x and 5x.
7x=35 :.X=5
5x= 5×5=25
Thus,Total length of pole is 35+25=60
8. A cone shaped paper cup has a radius of 1.5 inches and a height of 3 inches. What is the volume of the cup?
Answer:
[tex]V=7.06\ \text{inches}^3[/tex]
Step-by-step explanation:
Given hat,
The radius of cone shaped paper cup, r = 1.5 inches
The height of cone shaped paper cup, h = 3 inches
We need to find the volume of the cup. For a cone shaped, the volume is given by :
[tex]V=\dfrac{1}{3}\pi r^2 h[/tex]
Putting all the values in the above formula.
[tex]V=\dfrac{1}{3}\pi \times (1.5)^2 \times 3\\\\V=7.06\ \text{inches}^3[/tex]
So, the volume of the cup is [tex]7.06\ \text{inches}^3[/tex].
Mr. Clark sold 280 bags of chips and 415 bottles of juice in 5 days. At this rate, Mr. Clark will sell bottles of juice in 12 days.
Answer:
is answer is 8,340
Step-by-step explanation:
add 280 and 415 and get 695
then multiply by 5 and get 3,475
then multiply 695 by 12 and get 8,340
A car was bought for $20,000 and has depreciated at a rate of 10% yearly. Find the price of the car 8 years later.
Answer:
$4,000
Step-by-step explanation:
10% of $20,000 is $2,000, which means the price of the car is decreasing by $2,000 each year. After 8 years, the price of the car has decreased by $16,000 ($2,000 times 8 years). The totals cost of the car is now $4,000, as it was originally $20,000, but decreased by $16,000. (20,000-16,000=4,000).
III
4.09 Unit Test: Lines - Part 1
What is an equation in point-slope form for the line that passes through the points (4, -1) and (-3,4)?
A.y+4= -(0+3)
B.y-3= -(x+4)
C.y+4= (x+3)
D.y-4= -(x+3)
Quick please
Answer:
D.y-4=-5/7(X=3)
Hope this helps!!!
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Solve.
How much pure acid is in 860 milliliters of a 18% solution?
The answer is ____ ml.
Answer:
The answer is 154.8 ml
Step-by-step explanation:
In this question, the amount of pure acid is 18% of the total solution, that is, 18% of 860 milliliters. So
0.18*860 = 154.8 ml
The answer is 154.8 ml
-5.8c +4.2 – 3.1 + 1.4c
Solve this for me
Answer:
-4.4c+1.1
Step-by-step explanation:
What is 2/3-5/9 in 5th grade math
Answer:
0.111111
Step-by-step explanation:
Answer:
Step-by-step explanation:
Solution
=2×3/3×3-5×1/9×1
=6/9-5/9
=6-5/9
=1/9
Please mark me brainliest.Ok
Kathy owned several real estate properties. She had to pay federal taxes on her income and property taxes on the properties. What would be another major cost of her investment?
A.
bank fees
B.
investment broker fees
C.
renovation and maintenance costs
D.
utilities
Answer:
The correct answer is C. Renovation and Maintencance costs
Step-by-step explanation:
#Plato :)
The major cost of her investment would be C. Renovation and Maintencance costs.
What is income tax?Income tax is a tax applied on individuals or entities concerning income or profit earned by them.
The amount of additional tax paid for each new dollar of income received is known as; the marginal tax rate.
The Total taxes paid is divided by total income earned is the average tax rate. With a marginal tax rate of 10 percent, then the tax would be deducted from the following dollar of income at a rate of 10%.
Given that Kathy owned several real estate properties. She had to pay federal taxes on her income and property taxes on the properties.
The major cost of her investment would be C. Renovation and Maintencance costs.
Learn more about tax here:
brainly.com/question/10798743
#SPJ5
Angie has $1,900 in her savings account. If the bank pays 5% simple interest on savings, What is the total amount of money she will have in her account after 5 years?
what is the answer to
2x=24
Answer:
12
Step-by-step explanation:
you divide 24 by 2 because it is multiplication, and the opposite is division.