Answer:
cos(x -π/3) = (1/2)cos(x) +(√3/2)sin(x)
Step-by-step explanation:
You want cos(x -π/3) written in terms of sine and cosine.
Angle differenceThe formula for the cosine of the difference between two angles is ...
cos(a -b) = cos(a)cos(b) +sin(a)sin(b)
ApplicationWe have a=x, b=π/3, so the desired function is ...
cos(x -π/3) = cos(x)cos(π/3) +sin(x)sin(π/3)
We know that ...
cos(π/3) = 1/2sin(π/3) = √3/2so the rewrite is ...
cos(x -π/3) = (1/2)cos(x) +(√3/2)sin(x)
Question 3
Alicia graphed a solution of linear equations on a coordinate plane.
1
What is the approximate solution of the system?
Answer:
what did the answer end up being?
Step-by-step explanation:
What is the total area of the figure? NO LINKS ONLY ANSWERS
Answer:
Hello! answer: 24
Hope this helps!
Answer:
A. 5x3=15 B. 3x3=9 15+9=24
Step-by-step explanation:
HAVE A NICE DAY
WILL GIVE BRAINLST :)
Answer:
3. 30 degrees
4. 46 degrees
5. 55 degrees
Step-by-step explanation:
3. Let it be x
85+65+X=180
150 + x = 180
x = 180 - 150
x = 30 degrees
4. Let it be x
104 + 30 + x = 180
134 + x = 180
x = 180 - 134
x = 46 degrees
5. Let it be x
x + 85 + 40 = 180
x + 125 = 180
x = 55 degrees
PLEASE GIVE ME BRAINLIEST PLSSS
Answer:
Step-by-step explanation:
i need help i honestly dont get this
Answer:
I'm not too sure though but I think its change of subject formula
What is answer too 12a over 2
Answer:
6a
Step-by-step explanation:
COMPLETE
h
50
The sum n(n+6) =
+
1575
RETRY
9514 1404 393
Answer:
50575
Step-by-step explanation:
The correct answer choice is marked. Evaluating it gives ...
the sum is 50,575
The measure of HELP PLESSE
Answer:
[tex]51.3[/tex]
Round 123.7561 to the nearest hundredth place
Decimal numbers are number that contains decimal points. The value 123.7561 rounded to nearest hundredth is 123.76
Rounding of decimal numbersDecimal numbers are number that contains decimal points in between the values.
Given the decimal value 123.7561, we are to convert the decimal values to the hundredth place.
This means that there must only be two values after the decimal points and the values rounded up if greater than 4.
Hence the value 123.7561 rounded to nearest hundredth is 123.76
Learn more on rounding up here: https://brainly.com/question/10340128
Write an equation of the line passing through (- 5,5) and having slope - 4. Give the answer in slope-intercept form.
The equation of the line in slope-intercept form is:
Answer:
y = - 4x - 15---------------------------
Slope-intercept form:
y = mx + b, where m is the slope, b is the y-interceptPoint-slope form:
y - y₁ = m(x - x₁), where m is the slope and (x₁, y₁) is the point on the lineUse the point-slope form to find the equation and then convert it to slope-intercept form:
y - 5 = - 4(x - (-5))y - 5 = -4(x + 5)y - 5 = - 4x - 20y = - 4x - 20 + 5y = - 4x - 15-2(t+7)=- 4t+12 what value of t makes the equation true
Answer:
T is 13
Step-by-step explanation:
-2(t+7)=-4t+12
-2t-14=-4t+12
2t=26
t=13
check answer:
-2(13+7)=-4(13)+12
-26-14=-52+12
-40=-40
Answer:
t is or equal to 13
Step-by-step explanation:
i done this before
What is the difference quotient of the function g(x) = 4^x
Answer:
First choice
Step-by-step explanation:
The difference quotient in general is [tex]\frac{g(x+h)-g(x)}{h}[/tex]. To get an expression for [tex]g(x+h)[/tex], replace x with x + h.
For this question,
[tex]\frac{4^{x+h}-4^x}{h}=\frac{4^x\cdot4^h-4^x}{h}[/tex]
Factor [tex]4^x[/tex] out of the numerator.
[tex]\frac{4^x(4^h-1)}{h}[/tex]
Answer:
The answer is A the first option
Step-by-step explanation:
Just took the unit review and got a 100
HELP ME PLEASEEEEEEEE!!
9514 1404 393
Answer:
12. 13
14. A
15. B
Step-by-step explanation:
I choose to work 3 problems to show how multiplication and division work with exponents.
__
12. You are looking for the coefficient of the x² term. It will be the sum of the coefficients of partial products that result in the variable being x². Those partial products will be of the form (ax²)(b) or (ax)(bx).
We note there are both x² and x terms in the first factor, but only x terms in the second factor. So, the x² term of the product will be ...
(2x²)(4) +(5x)(x) = (8 +5)x² = 13x²
The missing coefficient is 13.
__
14. The rules of exponents are ...
(a^b)(a^c) = a^(b+c)
(a^b)^c = a^(bc)
(a^b)/(a^c) = a^(b-c)
The given expressions can be simplified as ...
Koby
[tex]\dfrac{w^3\cdot w^5}{(w^2)^4}=w^{3+5-2\cdot4}=w^0=1[/tex]
Paulo
[tex](m^5)^2\cdot (m^{-3})^3=m^{5\cdot2+(-3)\cdot3}=m^1=m[/tex]
Kobe Only wrote an expression equivalent to 1.
__
15. The given expression is of the form
[tex]\dfrac{\text{dividend}}{\text{divisor}}=\dfrac{14x^2+10x-7}{2x}\\\\=\dfrac{14x^2}{2x}+\dfrac{10x}{2x}-\dfrac{7}{2x}=(7x+5)+(-\dfrac{7}{2x})=\text{(quotient)+(remainder)}[/tex]
The true statement is ...
the quotient has a remainder of -7/(2x)
__
Additional comment
Strictly speaking, a division problem can be expressed as ...
dividend = (divisor)(quotient) + remainder
In this instance, this would be ...
14x² +10x -7 = (2x)(7x +5) -7
which is to say that -7 is the remainder. The term -7/(2x) is actually part of the quotient.
The above (quotient) + (remainder) should actually be ...
(quotient) +(remainder)/(divisor)
You will notice the answer choices have the terms "dividend" and "divisor" swapped, and that the degree of the binomial quotient is 1, not 2. Thus the only choice that begins to make sense is the one highlighted above--even though it, too, is technically incorrect.
kkkkkkkkkkkkkkkkkkkkkkkkkkkkk
Answer:
23/4
Step-by-step explanation:
5*4 = 20
20+3=23
Answer:
23/4
Step-by-step explanation:
I learned it like this
4x5+3
So basically you multiply the bottom number with the whole number on the side and add the top number to it
And 4x5+3=23
You keep the bottom number of the mixed number
So it's 23/4
(I'm not super good at explaining things, but I hope this helped)
Instructions: Find the missing length indicated.
Please help no links
Answer:
120
Step-by-step explanation:
To find the value of x we use Euclidian theorem
x^2 = 225*64
x^2 = 14400
x = 120
Enter the next three numbers of the repeating decimal produced by the
7
fraction
9
0.777777 ...
Answer:
777
Step-by-step explanation:
7/9 will repeat 7 forever
The next three are therefor
777
Please help. Assignment is due today. I am terrible with math, I don't understand this. Thanks in advance.
Answer:
a. A' (-3, -1) B' (3, 2) C' (6, 0); b. A' (-1, -3) B' (1, 6) C' (2, 0); c. A' (-2, -3) B' (2, 6) C' (2, 0)
Step-by-step explanation:
Solutions for graph a, b and c are attached.
a. (x, y) to (3x, y)
A' (-3, -1) B' (3, 2) C' (6, 0)
b. (x, y) to (x, 3y)
A' (-1, -3) B' (1, 6) C' (2, 0)
c. (x, y) to (2x, 3y)
A' (-2, -3) B' (2, 6) C' (2, 0)
REMEMBER: Connect the lines to make the triangles for each graph BEFORE submitting.
Only answer if you’re sure :) id like the full equation! Will give Brainly
Answer:
[tex]y = \frac{3}{2} x - \frac{7}{2} [/tex]
Step-by-step explanation:
3x-2y=7
-3x -3x
-2y=-3x+7
-1 -1
2y=3x-7
2 2
y= 3/2x-7/2
Which of the following values are in the range of the function graphed below?
Check all that apply.
10
- 10
10
. 10+
D A. 2
O B. 5
C. 3
O D. 1
E. -2
Answer:
All of the above.
Step-by-step explanation:
They are all within the range.
The range of the function graphed below are,
⇒ 2, 3, 1
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given that;
The graph of function is shown.
Now, By graph;
The range of the function graphed below are,
⇒ (0 , 3]
Hence, By options;
The range of the function graphed below are,
⇒ 2, 3, 1
Learn more about the function visit:
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Can someone help me this is confusing
Solve the equation.
3(x−9)=30
Answer:
19
Step-by-step explanation:
3(x-9)= 3x-27
3x-27=30
3x=57
x=19
Find the radius of the circle with a diameter of 100 mete radius:
50
Step-by-step explanation:
100/2 = 50
So, the radius is 50.
I hope this helps, have a good day!
Answer:
r=50m
Step-by-step explanation:
Remeber it's the half of the number (N).
Find the value of each variable for each circle. Show your work
For a circle you have 60 and 80, what is the value of each variable a and b
The values of the variables in the circles are
Circle 1: a = 34 degreesCircle 2: a = 58 degrees, b = 90 degrees and c = 61 degreesHow to determine the values of the variables in the circles?From the question, we have the following parameters that can be used in our computation:
Circles and missing angles (see attachment for the figures)
Circle 1
To determine the unknown variable (a), we make use of the following theorem
The angle subtended by an arc at the circumference is twice the angle subtended at the circumference
Mathematically, this means that
a = 2 * 17 degrees
Evaluate the product
a = 34 degrees
Circle 2
To determine the unknown variable (a), we make use of the following theorem
The angle at the circumference in a semicircle is 90 degrees.
Mathematically, this means that
b = 90 degrees
Also, we have
a + 122 degrees = 180 degrees
Evaluate
a = 58 degrees
Using the theorem in (a), we have
b + a/2 + c = 180
This gives
90 + 58/2 + c = 180
Evaluate the like terms
c = 61 degrees
Hence, the angle c is 61 degrees
Read more about angles at
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C(6,18), SF=____ C'(2,6)
Pls help me solve this and figure this out!!!
Step by step exclamation please
Answer:
Expression: 48x + 120y & Area = 1,008 square feet
Step-by-step explanation:
12(4x + 10y)
multiple the 12 into 4x + 10y
12 x 4x = 48x
12 x 10y = 120y
48x + 120y
x = 6 ft
y = 4 ft
Substitite in numbers
48x + 120y
48(6) + 120(6)
Multiply
288 + 720
Add
288 + 720 = 1,008 square feet
PLS ANSWER FAST, WILL GIVE BRAINLIEST
Answer:
I guess option c is the answer
A band expects to put 15 songs on their next CD. The band wriand records 60% more songs than they expect to put on the CD. During the editing process, 50% of the songs are removed. How many songs will there be on the final CD
Answer:
18 songs
Step-by-step explanation:
15 x 1.6 = 24
24 x 0.75 - 18
Ralph’s shirt company sells t-shirts for $7.50 each with a flat rate of $10 for shipping. Frank’s t-shirt company sells t-shirts for $10 each with free shipping.
A: Write an equation to represent each T-Shirt company.
Ralph's:_______________
Frank's:_______________
B: Solve the system of equations by using the graph.
C: What does the solution mean in the context of the solution?
Answer:
A: Ralph y = 10 + 7.50x
Frank y = 10x
B: x = 4, y = 40
C: x = 4 means that in order for the companies to make the same amount of money, they have to sell 4 shirts each. When the companies sell 4 shirts (or multiples of 4) they are making the same amount of money.
Step-by-step explanation:
Because both equations are equal to y, set them equal to each other.
10x = 10 + 7.50x
2.5x = 10
x = 4
Plug in x to a y equation.
y = 10(4)
y = 40
Find x such that the line through (6, −3) and (7, 6) is perpendicular to the line through (−2, 5) and (x, −1).
Given:
The line through (6, −3) and (7, 6) is perpendicular to the line through (−2, 5) and (x, −1).
To find:
The value of x.
Solution:
Slope formula: If a line passes through two points, then the slope of the line is:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
The slope of the line through (6, −3) and (7, 6) is:
[tex]m_1=\dfrac{6-(-3)}{7-6}[/tex]
[tex]m_1=\dfrac{6+3}{1}[/tex]
[tex]m_1=9[/tex]
The slope of the line through (−2, 5) and (x, −1) is:
[tex]m_2=\dfrac{-1-5}{x-(-2)}[/tex]
[tex]m_2=\dfrac{-6}{x+2}[/tex]
We know that the product of slopes of two perpendicular lines is -1.
[tex]m_1\cdot m_2=-1[/tex]
[tex]9\cdot \dfrac{-6}{x+2}=-1[/tex]
[tex]\dfrac{-54}{x+2}=-1[/tex]
Multiplying both sides by (x+2), we get
[tex]-54=-1(x+2)[/tex]
[tex]-54=-x-2[/tex]
[tex]-54+2=-x[/tex]
[tex]-52=-x[/tex]
Divide both sides by -1.
[tex]52=x[/tex]
Therefore, the value of x is 52.
8 feet and 9 inches multiplied by 5
Answer:
43 feet 9 inches
Step-by-step explanation:
Since there are 12inches in a feet you would have to first make the feet in to inches so 8x12 which would give you 96in and since there 9 extra inches you would add them to get 96+9=105inches then you muiltiply by 5 and lastly you make them back in to feet by dividing by 12 since there are 12inches in a feet. It would look like this: 525/12= 43.75 or 43ft and 9in
-50 POINTS- If you guess will be reported.
If P=(1,6), Find: D3 (P)
Answer:
(3,18)
Step-by-step explanation:
You do not give the center of dilation, so I am using the origin (0,0)
You multiply the x and y by 3
(1,6)
1 x 3 = 3
(1,6)
6 x 3 = 18
(3,18)