Answer:
0 radians or 2π radians
Step-by-step explanation:
arccos(sine (StartFraction pi Over 2 EndFraction)) is expressed as;
cos^(-1) (sin π/2)
Now, (sin π/2) in radians is same as (sin 180/2) = sin 90 in degrees.
Thus;
(sin π/2) = 1
Thus;
cos^(-1) 1 = 0
It could also be 360° in the fourth quadrant since cosine is positive there too.
Thus,
cos^(-1) (sin π/2) = 0° or 360°
In radians, this gives; 0 radians or 2π radians
0 radians or 2π radians is the value of arccos(sine (StartFraction pi Over 2 EndFraction)).
Here, we have,
given that,
The term is: arccos (sine (StartFraction pi Over 2 EndFraction)
so, we get,
arccos(sine (StartFraction pi Over 2 EndFraction)) is expressed as;
cos^(-1) (sin π/2)
Now, (sin π/2) in radians is same as (sin 180/2) = sin 90 in degrees.
Thus;
(sin π/2) = 1
Thus;
cos^(-1) 1 = 0
It could also be 360° in the fourth quadrant since cosine is positive there too.
Thus,
cos^(-1) (sin π/2) = 0° or 360°
In radians, this gives; 0 radians or 2π radians.
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Write the equation of the line through the points (1, 3), (3, 3)
Answer:
y = 3
Step-by-step explanation:
P ( 1 , 3) and Q ( 3 , 3 )
The straight line is parallel to the x-axis since the two points have the same y.
The intercept with the y-axis is 3.
The slope-point equation for a line is:
y = m*x + b (1)
m is the slope and b is the intercept with the y-axis
To calculate the slope
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
m = 3 - 3 / 3 - 1 m = 0 / 2 m = 0
therefore, equatio (1) becomes
y = 0*x + 3
y = 3
• A trapezoid is one or two ____
and a _____
combined!
Use the formula ______
where:
. b1 is the ____
. b2 is the ____
and
• h is the ___
of the trapezoid.
please help with my math
Answer:
f + g = [tex]\frac{x-1}{x+ 3}+\frac{x-3}{x+1}=\frac{x^{2}-1 }{(x+3)(x+1)}+\frac{x^{2}-9 }{(x+1)(x+3)}=\frac{2x^{2}-10 }{(x+1)(x+3)}[/tex]
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLIEST
Identify the missing number.
X^4 • X^? = X^5
Answer:
? = 1
Step-by-step explanation:
The welding rate of a third robots is represented by the equation t=10.8w, where t represents the time in minutes ans w represents the number of welding tasks. How does it compare the other two?
how can linear equations help you compare linear functions?
Answer: i will answer this question
Step-by-step explanation:
Look at the photo pick A B C D either one explanation not needed thank you! <3
Answer:
A?
Step-by-step explanation:
Helpp!
Find (8x + 9) + (-6x - 2). Show your work.
Answer:
2+11
Step-by-step explanation:
Distribute
(8+9−1(6−2)
(8+9)−6+22
Eliminate redundant parentheses
(8+9)−6+2
8+9−6+23
Add the numbers
8+9-6+2
8+11−64
Combine like terms
8+11−6
2+11
x=-7/2 is the value of the expression (8x + 9) + (-6x - 2).
What is Expression?An expression is combination of variables, numbers and operators.
The given expression is (8x + 9) + (-6x - 2).
Eight times of x plus nine plus minus six times of x minus two.
x is the variable in the expression , plus and minus are the operators.
(8x + 9) + (-6x - 2).
8x+9-6x-2
Add the like terms
2x+7
2x=-7
Divide both sides by 2
x=-7/2
Hence, x=-7/2 is the value of the expression (8x + 9) + (-6x - 2).
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Triangle QRS is reflected over y = 2. What are the coordinates of Q'?
Answer:
(1,6)
Step-by-step explanation:
In order to reflect a point over a horizontal line, you need to count how many units it takes to reach that line (going vertically). Once you have that number, count that many units starting from that point on the line (again, going vertically), then that is your reflected point.
Counting from point Q to the line y = 2, it takes 4 units. So starting from that point on the line where I left off, I would count another 4 units, taking me to (1,6). The picture below explains it better visually.
plz help i will mark brainlist
Answer:
c
Step-by-step explanation:
What is the first step to solving the following equation? 6x – 9 = 48
Step-by-step explanation:
6x=48+9 is the first step
A recursive function is shown below:
f(1) = 5 and f(n) = f(n - 1) - 6; n > 1
Which of the following lists the terms in the sequence defined by this recursive function
A: 5, 11, 17, 23, 29, ...
B: 5, -11, -17, -23, -29, ...
C: 5, -1, -7, -13, -19, ...
D: 5, 1, 7, 13, 19, ...
9514 1404 393
Answer:
C: 5, -1, -7, -13, -19, ...
Step-by-step explanation:
You need look no further than the second term. That term will be ...
f(2) = f(1) -6
f(2) = 5 -6 = -1 . . . . matches sequence C
The area of a square is 100cm what is the perimeter?
Answer:
your perimeter will be 40cm
The 4 sides of a square are the same length. Find the length of a side by taking the square root of the area.
Side = sqrt(100) = 10 cm
Perimeter = side length x 4
Perimeter = 10 x 4 = 40 cm
Describe and correct the error a student made in writing the system of inequalities represented by the graph show below.
Answer:
that student made a error on his graph because the equation y<0.5x+1 doesn't show.
Step-by-step explanation:
The radii of two right circular cylinders are in the ratio 3 : 4 and their heights are in the ratio 1 : 2. Calculate the ratio of their curved surface areas
Answer:
18.852:50.272
Step-by-step explanation:
Step one:
given
The radii of two right circular cylinders are in the ratio 3 : 4
r1= 3
r2= 4
Their heights are in the ratio 1 : 2
h1= 1
h2= 2
Step two:
The expression for the curve surface area is
CSA= 2πrh
CAS1= 2πr1h1
CAS1= 2*3.142*3*1
CAS1= 18.852
CAS2= 2πr2h2
CAS2= 2*3.142*4*2
CAS1= 50.272
The ratio of their curved surface areas
=18.852:50.272
Write the integer that represents the situation. Max spent $44 and now has no money left. He had ___ before his purchase.
Answer:
The answer is Before Max had $53
Step-by-step explanation:
assume i gave you one piece of candy and now i have none left. how many did i have before i gave you that one piece?
Maggie is converting 10,560 feet to miles by using StartFraction 10,560 feet Over 1 EndFraction times StartFraction 1 mile Over 5,280 feet EndFraction. What should be Maggie’s answer?
Answer:
Maggie's answer is going to be approximately 2 miles.
Step-by-step explanation:
It takes meagen 56 minutes to cook a golden turkey that weighs 12 pounds. Her compieter, chef Geraidine takes 1 hour and 16 minutes to cook a golden turkey that weighs 304 ounces. What is the differnece in pounds cooking the golden turkey er minute between chef meagen and chef chef geraidine?
Answer:
0.033 pounds/min
Step-by-step explanation:
For Meagen:
Time taken to cook golden turkey = 56 minutes
Weight of golden turkey = 12 pounds
For her competitor:
Time taken to cook golden turkey = 1 hour 16 minutes = 77 minutes
Weight of golden turkey = 304 ounces
16 ounces = 1 pound
Therefore, 304 ounces = [tex]\frac{304}{16}[/tex] = 19 pounds
Now, let us find the number of pounds cooked per minute by each chef.
Pounds cooked per minute by Meagen = [tex]\frac{12}{56} = 0.214\ pounds/min[/tex]
Pounds cooked per minute by the competitor = [tex]\frac{19}{77} = 0.247\ pounds/min[/tex]
Difference = 0.247 - 0.214 = 0.033 pounds/min
Which graph represents the solution to the system of inequalities below?
5x - 4y > 4
x + y < 2
Answer:
The correct option is;
B
Step-by-step explanation:
The given system of inequalities are;
5·x - 4·y > 4...(1)
x + y < 2...(2)
Representing both inequalities as a function of "y", gives;
For, 5·x - 4·y > 4...(1), we have;
-4·y > 4 - 5·x
y < 4/(-4) - 5·x/(-4)
∴ y < 5·x/4 - 1
For x + y < 2...(2), we have;
y < 2 - x
Therefore, y is less than the values given by the equation of the straight line equalities, and the feasible region is given by the common region under both dashed lines representing both inequalities as shown in the attached diagram created using Microsoft Excel
The correct option is therefore, B.
what is 6*56577467577467475
Answer:
3.39E17
Step-by-step explanation:
Answer:
3.3946481e17
Step-by-step explanation:
CAL - CU - LAT - OR = CALCULATOR
I need help with this asap! Please show how you got the awnser! I WILL MARK BRAINLIEST!!!
Answer:
x=15
angle =34
Step-by-step explanation:
find the missing angle
180-146=34
angle=34
so
all angles added together
(5y+3)+(4y+8)+34=180
9y+11+34=180
9y+45=180
9y=135
y=15
A conical tank (with vertex down) is 10 feet across the top and 12 feet deep. Water is flowing into the tank at a rate of 15 cubic feet per minute. Find the rate of change of the depth of the water when the water is 4 feet deep.
Answer:
Step-by-step explanation:
0
On average, Carmen can drive 28 miles on every gallon of gasoline. If she fils up her tank for $225 per gallon, how much
will it cost her to drive 336 mies?
help please.......
Answer:
According to my calculations, the correct answer is 1/16. Let me know if it comes as correct on your side. Thanks!
Step-by-step explanation:
11.
Three lemon cookies plus two fudge cookies have 400 calories. Two lemon cookies plus three
fudge cookies have 425 calories. How many calories are in each kind of cookie?
Answer:
F=95
L=70
Step-by-step explanation:
3L+2F=400
2L+3F=425
Plug in and substitute
F=95
L=70
(Can I get brainliest please)
Answer:
lemon cookies = 70 calories
fudge cookies = 95 calories
Step-by-step explanation:
Lemon cookies = "x"
Fudge cookies = "y"
As per what is given;
3x + 2y = 400
2x + 3y = 425
Multiply the first equation by (-3), and the second by (2)
-9x - 6y = -1200
4x + 6y = 850
________________
-5x = - 350
Inverse operations;
-5x = -350
/-5 /-5
x = 70
Subsitute back in;
3x + 2y = 400
3(70) + 2y = 400
Simplify, inverse operations;
210 + 2y = 400
-210 -210
2y = 190
y = 95
X-5/-2=x-1/-3 it’s algebra 1
Answer:
x= 13
Step-by-step explanation:
Class- 4th question in India
Mark as Brainliest.
Because I am Indian and solving your question from India.
Allan can make 8 pizzas in 15 minutes at the pizza restaurant where he works. If the number of pizzas varies directly with minutes, how many pizzas can Allan make in 3 hours? Please Help
Answer:
96 pizzas
Step-by-step explanation:
Allan can make 8 pizzas in 15 minutes at the pizza restaurant where he works.
We are told that;
If the number of pizzas varies directly with minutes,
P ∝ M
P = kM
Hence:
8 = 15k
k = 8/15
How many pizzas can Allan make in 3 hours?
Convert 3 hours to minutes
1 hour = 60 minutes
3 hours = x
x = 3 × 60
x = 180 minutes
Hence,
M = 180 minutes
k = 8/15
P = kM
P = 8/15 × 180
P = 96 pizzas
Therefore, Allan can make 96 pizzas in 3 hours
Please answer i need help!!!!! WILL GIVE BRAINLIEST!!!!!
1. D. 4 x 4 x 4 x 4 x 4
2. B. 6³ (6 x 6 x 6 = 216)
3. D. (8², 100^1, 11², 5³)
4. D. Sum (There's No addition anywhere in that equation)
5. C. h (Because there's no number before the h²)
6. C. 24
7. C. Raise 9 to the 2nd power (Follow PEMDAS, after doing the parentheses, you need to do the exponents, and C. you need to the exponents)
8. A. 4xy
9. C. 18 (I followed PEMDAS, and received the answer 18)
10. B. 49
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I hope this helps, and Happy Holidays! :)
Mika read a 405-page book in 6 hours. How many pages per minute did
she read?
Answer:
Mika read about 67 pages per hour.
Step-by-step explanation:
405 pages divided by 6 hours equals 67.5 pages. You can't have 67.5 pages (unless you read half a page) so you round down.
The regular price of a t shirt is $18 what is the discount price???
Answer: $14.40
Step-by-step explanation: