Answer:
sin7x - sinx = cos2x - 10cosx
= sin6x = 10cosx
Step-by-step explanation:
hope that will help you
Help please 50 points!
Answer:
84%
Step-by-step explanation:
The mean has 50% below the mean and 50 % above the mean
The mean is 103.47
The standard deviation is 4.07
Add the mean and the standard deviation
103.47+4.07 = 107.54
We want to know how much data is below the mean plus one standard deviation
Within one standard deviation is 68% , but that is on both sides, we are only needed on the right side so we need 1/2 of the 68 = 34
50+34 = 84
Can someone please assist me with this? If so praise God :)
Answer:
option 1
Step-by-step explanation:
the square root of 6 is 2.44949, rounded it's 2.4
the square root of 42 is 6.48074, rounded it's 6.5
in option 1 the 6 is placed after the 2 because it is point 4, not quite 2 but a bit bigger than 2 but less than 3.
same thing for 42, it is placed after 6 because it is not quite 6 but not over 7. i hope this helped
Given f(x)=x−1−−−−√+2, what is the relationship between f(x) and f−1(x)? Drag and drop an inequality into each box to correctly complete each statement.
Answer:
The domain of f(x) is x>-2, so the range of f-1(x) is y>-2
The range of f(x) is y>-1, so the domain of the f-1(x) is x>-1
Step-by-step explanation:
To solve this question, we need to know the definition of domain and range.
The domain of a function is defined as all the possible input x-values while the range is defined as all the possible output y-values.
For f(x), domain for x is; x ≥ 1 and range is; y ≥ 2
For f⁻¹(x); domain is; x ≥ 2 and range is; x ≥ 1
We are given the function;
f(x) = [tex](\sqrt{x - 1} ) + 2[/tex]
Now, when x = 1, we will have zero inside the square root sign and this means that any x-value less than 1 will make the value inside the square root symbol to be negative which will result in an imaginary root.
Thus, we can say that, the domain for x is; x ≥ 1
Putting x = 1, we can find the least range value;
f(x) = 0 + 2
f(x) = 2
Thus, the range will be; y ≥ 2
Now, we want to find the range of f⁻¹(x)
This means an inverse of the original equation.
Thus;
f⁻¹(x) = [tex](x - 2)^{2} + 1[/tex]
Let's put x = 2;
f⁻¹(x) = (2 -2)² + 1
f⁻¹(x) = 1
Since x=2 gives the bracket to be zero, it means the domain is; x ≥ 2 and range is; x ≥ 1
Read more at; brainly.com/question/24522291
Rotate the shape 180 degrees counterclockwise around B
Answer:
see attached
Step-by-step explanation:
Sam sharpens pencils for his after school job. He can sharpen 26 pencils in 6 minutes. If he keeps this rate, how many pencils can he sharpen in 15 minutes?
Answer:
234
Step-by-step explanation:
multiply 26 x 9
0.63 repeating as a fraction
Answer:
63 100
Step-by-step explanation:
To convert the decimal 0.63 to a fraction, just follow these steps:
Step 1: Write down the number as a fraction of one: 0.63 = 0.63 1.
Step 2: Multiply both top and bottom by 10 for every number after the decimal point:
Answer:
7/11
Step-by-step explanation:
I need help. Someone pls answer 50 and 40. I'm giving 25 brainly
Answer:
I'm not sure if you're supposed to answer the question in numbers, i think you move the boxes "rational" and "irrational" in the rectangles provided below each question.
la cancha de futbol del colegio es de forma rectangular, pedro es el cargado de colocar un lazo alrededor para que nadie entre ala cancha si el ladao largo mide 100 mertros y el lado mas corto mide 64 metros ¿ cuanto debe medir el lazo
Answer:
328 metros
Step-by-step explanation:
Aquí, estamos interesados en colocar un bucle alrededor de un campo de fútbol de la escuela de manera que sea imposible que alguien pueda acceder al campo.
Matemáticamente, la longitud de este bucle sería igual al perímetro del campo.
El perímetro del campo rectangular se puede calcular usando la fórmula; 2 (L + B)
En este caso tenemos; P = 2 (100 + 64)
P = 2 (164)
P = 328 metros La longitud del bucle es de 328 metros.
-2x + 3y = 9, solve for x
Answer:
If your going to graph it , it would be x=3/2y+ -9/2
Step-by-step explanation:
Write 0.39 as a fraction in simplest form.
To write the repeating decimal as a fraction, first let n=0.39. Then
find 100n.
n = 0.39
100n = 39.39
Subtract to eliminate the repeating part.
100n = 39.39
n = 0.39
99n =
Answer: 39/100 and percentage is 39%
Step-by-step explanation:
the area of a square is 36 cm^2? what is the side length
Answer:
6cm
Step-by-step explanation:
[tex]\sqrt[]{36} =6[/tex] Add the units, and there is your answer.
graph the function and its parent function on the calculator . Then describe the transformation.
f(x)=2x -7, What is x when f(x)=-15?
Answer:
x = -4
Step-by-step explanation:
Plug in -15 into the equation:
f(x) = 2x - 7
-15 = 2x - 7
Solve for x:
-15 = 2x - 7
-8 = 2x
-4 = x
HELP ME FOR BRAINETEST PLS
Answer: the first one is when you multiply it, the second is where you divide it
Step-by-step explanation:
Because they are different equations that are similar but one just uses multiplication and the other uses division.
PLS HELP I WILL MARK BRAINLIEST
Answer:
The answer for this question is. D
Answer:
D just read each of the selections very carefully and look for keywords like equals or more than, per..., and etc pls mark me brainliest
Step-by-step explanation:
What is the equivalent fraction of 0.95
.95 as a fraction would be 95/100
In simplest form this would be 19/20
Stephen had $101 to buy 9 pairs of PEMDAS socks. After buying them, he had 11 dollars
left. How much did each pair of socks cost?
Answer:
They are 10 dollars a piece
3(32 − 4 + 6 )− (82 + + 3) ?
simpilyfy
plzz
Answer:
17 is your answer
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
3(32-4+6) --> 102 & (82+3) --> 85
102-85 =17
5x+6= 5(x+1)-2 I need
1234567890
i searched it up trust me
Answer:
No solution.
Step-by-step explanation:
[tex]5x+6= 5(x+1)-2\\5x+6=5x+3\\5x=5x-3\\0=-3[/tex]
Since 0=-3 is not valid, the equation doesn't have a solution.
Does anyone know how to solve this?
Answer:
14.76
Step-by-step explanation:
First find the length of the diagonal across the bottom using the Pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse
12^2+5^2 = c^2
144+25 = c^2
169 = c^2
Take the square root of each side
sqrt(169) = sqrt(c^2)
13 = c
Then find the length of the diagonal across the middle using the Pythagorean theorem
7^2 + c^2 = d^2
7^2 + 13^2 = d^2
49+ 169 = d^2
218 = d^2
Take the square root of each side
sqrt(218) = sqrt(d^2)
14.76482306 = d
To the nearest thousandth
14.76
Simplify by combining like terms.
1. 5a-a
-3 ÷ -1 − -1 show your work step by step
Answer:
4
Step-by-step explanation:
-3/(-1)-(-1)
simplify this first
-3/(-1) + 1
Order of Operations : Division first
-3/-1 = 3 since negative ÷ negative = positive
3+1
=4
Hope this helps :)
A pack of six cans of coffee cost $12. How much would 19 cans of coffee cost?
Answer:
228
Step-by-step explanation:
12 times 19
our solutions to elimin:
ate
2. 3+5x = 3x - 9
Answer:
x=−6
Step-by-step explanation:
Let's solve your equation step-by-step.
3+5x=3x−9
PLEASE HELP QUICKLY! I KNOW THE ANSWER IS 65 BUT WHAT DOES F REPRESENT??
The equation 201.50 = f + 6.50(21) represents the cost of printing the shirts at a second printing company. Find the solution to the equation and state what the solution represents in this situation.
Answer:
maybe it means how many shirts
Answer:
F= 65
Step-by-step explanation:
Hope it helps
if g(x) = x^2 -1, find g(-3)
Step-by-step explanation:
>>▪︎g(x)=x²-1▪︎<<>>▪︎g(3)=3²-1▪︎<<>>▪︎=9-1▪︎<<>>▪︎8▪︎<<Solve for x: -2(x + 3) = -2(x + 1) - 4. (1 point)
a
2.
CA
3
ос
All real numbers
Od
No solution
Answer:
no solution
Step-by-step explanation:
[tex]-2 ( x + 3) = -2 (x + 1) -4 \\-2x + 3 = -2x -2 -4\\-2x + 3 = -2x - 6[/tex]
add [tex]2x[/tex] to both sides
[tex]-2x + 3 + 2x = -2x - 6 + 2x \\3 = -6[/tex]
That's impossible
so the equation no solution
Answer:
All real numbers ( -∞ ,∞)
Step-by-step explanation:
Simplify [tex]-2(x+3)[/tex]
Apply the distributive property.
[tex]-2x-6=-2(x+1)-4[/tex]
Simplify
[tex]-2(x+1)-4[/tex]
[tex]-2x-6=-2x -6[/tex]
Move all terms containing x to the left side of the equation.
Add 2 x to both sides of the equation.
[tex]-2x-6+2x=0[/tex]
Combine the opposite terms in
[tex]-2x-6+2x[/tex]
add [tex]-2x[/tex] and [tex]2x[/tex]
[tex]0-6= -6[/tex]
[tex]-6= -6[/tex]
Since [tex]-6= -6[/tex] , the equation will always be true for any value of x . All real numbers
The result can be shown in multiple forms.
All real numbers
Interval Notation:
( − ∞ , ∞ )
(-3-5/)(-3+5/)=
34
34-30i
-16
Answer:
(m+ni)2= -16 - 30i
2m + 2ni = -16-30i
.)2m=-16 .)2n=-30
m= -8 n= -15
por lo tanto.....
m2 + n2
(-8)2 + (-15)2
-16 + (- 30 )
-16 - 30
-46
respuesta..... - 46
Step-by-step explanation:
Answer:
34
Step-by-step explanation:
Given
(- 3 - 5i)(- 3 + 5i) ← expand using FOIL
= 9 - 15i + 15i - 25i² [ i² = - 1 ]
= 9 + 25
= 34
Given f(x) = 2x2 – 1 and g(x) = x + 3, find f(g(-5))
Answer:
7
Step-by-step explanation:
f(x) = 2x2 – 1 and g(x) = x + 3,
f(g(-5))
First find g(-5)
g(-5) = -5 + 3
g(-5) = -2
Then substitute into f(x)
f(-2) = 2 ( -2) ^2 -1
= 2 ( 4) -1
= 8-1
= 7
4y-x=6 solve the equation for x
Answer:
x=6
Step-by-step explanation:
you have to find the y value which should be 3 then subtract the x value. Which should be 6
