The domain of f(x)=cosx
must be restricted to all real numbers in order for the function to have an inverse function. The domain of g(x)=arccos(x)
is −1≤x≤1
and its range is 0≤x≤π
.
is this correct ?
Answers
Answer:
Not completely sure for the rest, but I believe the range is incorrect: the range represents y-values, not x-values.
So it should be 0 ≤ y ≤ π
Related Questions
Financial algebra: Karen wants to make a deposit of $500 each week into an account that earns %5 interest compounded weekly(52 weeks/year). How much money will be in the account at the end of 1 year?
How much money in interest will be the account earned at the end of the year?
Answers
Find the diameter of the circle with a circumference of 80 feet. Use 3.14 for pi. Round your answer to the nearest tenth.
12.7 ft
25.5 ft
40.0 ft
50.9 ft
Answers
Answer:
Option B = 25.5 ft
Step-by-step explanation:
Circumference = 80 ft
C = 2πr
80 = 2 * (22/7) * r
80 = (44/ 7) * r
So, Radius (r) = 80 * (7/44)
= 12.72 Feet
--> Diameter = 2r = 2 * 12.72
= 25.45 Feet
Therefore, Answer = Option B = 25.5 Feet (Round off)
1. (a+2)²
2. (a-5)²
3. 3(a+b)
4. (a+2)(a-2)
5. (ab)⁴
6.- 3a(2a + 2b)
7. (2a-3)(a +2)
8. (8a+10b)(8a-10b)
9. (2a-3)³
10.-9a(3a+4b)
Answers
Answer:
a² + 4a + 4
Step-by-step explanation:
(a + 2) ² = (a + 2) ( a + 2)
= a ( a + 2) + 2 ( a + 2)
= a² + 2a + 2a + 4
= a² + 4a + 4
huh? sorry idont know the answer
anna, ben, and cindy are standing in a line. anna and ben are 10 feet apart, cindy and ben are 12 feet apart, and cindy and anna are 2 feet apart. who is standing in the middle?
Answers
Answer:
Cindy
Step-by-step explanation:
Find the product
5/8 of 24
A. 8
B.15
C.11
D.9
Answers
Answer:
15
Step-by-step explanation:
Ms. Kumar has a checking account at the bank. If the account balance ever
falls below zero, the bank charges her a fee of $5.95 per day. Today, the
balance in Ms. Kumar's account is -$2.67. If she does not make any deposits
or withdrawals, what will be the balance in her account after 2 days?
Answers
Answer:
Step-by-step explanation:
-2.67-3(5.95)= -$20.52
Given that R = 6x + 9y
Find y when X = 1 and R= 39
Give your answer as an improper fraction in its simplest form.
y=
Answers
Answer:
11/3
Step-by-step explanation:
x=1, R=39, y=?
R=6x + 9y
(substitute the parameters into the equation)
39=6(1) + 9y
39= 6 + 9y
(collect like terms)
39 - 6 =9y
33=9y
(divide both sides by 9)
33/9=9y/9
11/3=y
therefore, y= 11/3
Negative five-fourths times a number and six is less than twelve.
Answers
Answer:
-5/4x +6 < 12
Step-by-step explanation:
3.3.4 Practice: Angle Relationships in Triangles
Practice
Math 8 Sem 2
Points Possible:5
Date:
Tips for Success
Read the assignment carefully and make sure you answer each part of the question or questions.
Check your work when you're done.
Your Assignment
Answer the questions to find the measures of ∠2 and ∠3.
1. What is the measure of ∠4? Explain how you know.
Write your answer in the space below.
2. What is the sum of the measures of the angles in a triangle?
Write your answer in the space below.
3. ∠1 is in a triangle with ∠4 and a 53° angle. What is the sum of the measures of those two angles?
Write your answer in the space below.
4. What is the measure of ∠1? Explain.
Write your answer in the space below.
5. Find the measure of ∠2. Explain how you found its measure.
Write your answer in the space below.
6. What is the measure of ∠3? Explain.
Write your answer in the space below.
Answers
For question 1 and 2, you should keep in mind that the sum of all angles in a triangle is 180°. 1. If the measure of one angle of a triangle is 90 degrees, you can assume that the sum of the other two triangles should be 90 degrees. Because
180 - 90 = 90
The sum of the three angles of any triangle is equal to 180 degrees.
Angle 2=127 because 180-53=127.
Angle 3=23 because 180-30-127=53
Angle 1=37 because 90-53=37
Angle 4=90
Angle 1+4=127
The measure of ∠1 is 125° .
Next x+64=110. The reason why you can do this is because ∠R is going to be an opposite interior angle. Subtract 64 from the left and right sides. x=46
Answer:
AP EX
Step-by-step explanation:
HELP ME PLS ASAP PLS PLZ
Answers
Answer:
11.5x 4.5-8 wayy easier all you do is add and multiply
A bicycle wheel makes five rotations. The bicycle travels 43.18 ft. Find the diameter of the wheel in inches. Use 3.14 for π.
Answers
Answer:
Step-by-step explanation:
x=5c, c=3.14d
x=5(3.14)d
d=x/15.7, x=43.18ft
d=43.18/15.7
d=2.75ft
map of field: 12 in × 15 in
scale of map: 1 in = 3 ft
What are the dimensions
of the actual field?
Answers
12 x 3 = 36 ft.
15 x 3 = 45 ft.
the dimensions are 36 ft. x 45 ft.
based on your understanding about matendo
activities
LEARNING ACTIVITY 1
horizontal, vertical or diagonal The first letter of your answer is given already.
hank for the four parts of a typical mathematical system using Word Hunt Puzzle. It will be
1. U
2. D.
3. P
4 T
U B
MNO
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R
F G
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WWV
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D
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5
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$
T
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W
A
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X
0
1
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c
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LEARNING ACTIVITY 2
Determine if the following terms represent a POINT, a LINE or a PLANE
1. Tip of a ballpen
6. wall
2. Screen of a cellphone
7. Note card
3. Cable wire
8. mole
4. Laptop
9. Hair strand
5. Edge of a table
10 Edge of the desk
Answers
Answer:
what is the question? where is the diagram?
Can you guys help me and answer this math question below please I really need help I'll mark brainliest to whoever answers! Please I’d really appreciate the help
Answers
Answer:
(1,-2)
Step-by-step explanation:
WE can see that the X value below is 1 and the Y value is -2
will received a 2% increase in pay, He was making $1,190/biweekly.
a. How much was his raise?
b. How much is he making now?
Answers
Answer:
A: His raise was $23.8
B: He is making $1213.8
Step-by-step explanation:
Do 1190 divided by 100 and your answer will be
11.9 which is 1%, then do (11.9 + 11.9) + 1190 which will equal 1213.8
a. Will's raise was the amount of $23.80. b. Will is now making $1,213.80 biweekly.
What is the percentage?The percentage is defined as a ratio expressed as a fraction of 100.
For example, If Misha obtained a score of 67% on her exam, that corresponds to 67 out of 100. It is expressed as 67/100 in fractional form and as 67:100 in ratio form.
Will receive a 2% increase in pay, He was making $1,190/biweekly.
a. Will's raise was $23.80. This can be calculated by multiplying his original biweekly payments of $1,190 by 2% (0.02).
b. Will is now making $1,213.80 biweekly. This can be calculated by adding his raise of $23.80 to his original biweekly payments of $1,190.
Learn more about the percentages here:
brainly.com/question/24159063
#SPJ2
What is the area of this figure?
Answers
Answer:
806.5 in ^2
Step-by-step explanation:
Separate into 3 figures: rectangle, trapezoid, and triangle
Rectangle:
A = 16*9
A = 144
Trapezoid:
A = ((16+31)/2)*15
A = 352.5
Triangle:
A = (31*20)/2
A = 310
TotalArea:
144+352.5+310
A = 806.5 in^2
Find the value of x so that (x, 12) satisfies y = 4x +4.
Answers
12 = 4x + 4
Subtract 4 from both sides.
8 = 4x
Divide by 4 on both sides.
2 = x
The ordered pair is (2, 12) and x = 2.
how sq ft in a room 12 x 12
Answers
Answer:
[tex]\boxed{\fcolorbox{144 ft^{2} }}[/tex]
Can someone help me please. I will cash app you or PayPal if you have , or any other way to pay you. Thanks.
Answers
Answer:
All rewrited would be 1. 10 to the power of three would be simplified into 1,000/1,000. 2 to the power of 5 would be simplified into 32/32. The repeated multiplication for 10 to the power of three would be 10 x 10 x 10 / 10 x 10 x 10. 2 to the power of 5 in repeated addition would be 2 x 2 x 2 x 2 x 2 / 2 x 2 x 2 x 2 x 2
I need help with #9 please
Answers
Answer:
some examples are 1, 2, 3, 4
BRAINLIEST! What is the slope of the line ?
Answers
Answer:
[tex]\displaystyle m=\frac{-4}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Reading a Cartesian planeCoordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-3, 1)
Point (2, -3)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{-3-1}{2+3}[/tex][Slope] Subtract/Add: [tex]\displaystyle m=\frac{-4}{5}[/tex]Tomaz realized that the tip of a second hand onna clock rotates about the center of the clock. He watched the second hand rotate around the center of the clock for 15 seconds. Which describes the rotation he observed
Answers
Answer:
юЙлвлалвоовлвулшуулвлаотааьдклаосьа
Answer: 90 degrees clockwise
Step-by-step explanation:
Too late, but this can be helpful to others. :D
Because a clock only moves clockwise, you can cut out the counterclockwise choices. That will help you find the answer easier.
How many groups of two are in six
Answers
Answer:
3 groups
Step-by-step explanation:
6 / 2 = 3 groups
plz mark me brainliest
Answer:3
Step-by-step explanation: 6 divided by 2
Without graphing, compare the slopes and the intercepts of the
graphs of the functions f(x) = x + 1 and g(x) = f(2x).
Answers
Answer:
graph f(x) passes through the y-axis at 1:00 whereas g(x) passes through the origin.
Need help with this question
Answers
Answer:
your answer will be option C
Step-by-step explanation:
hope this helps ^_^
Megan bought 50 beads for a coast of $9.95. sakes tax on the beads was 6%. how much did she pay for the beads total?
Answers
Answer:
$10.52
Step-by-step explanation:
First, 9.95 × .06 = 0.6
Then you add 9.95 + 0.6
So the answer is $10.55
i will give brainliest to the right answer:)ty sm!!
Answers
Answer:
c must be less than 10 but greater than 4.
Step-by-step explanation:
In order to solve this problem, you have to apply the triangle inequality theorem. This theorem is used to determine whether or not you can form a triangle. According to the theorem, the sum of the two sides must be greater than the longest side of the triangle.
For instance, a triangle has side lengths 4, 5, and 7.
Can you form a triangle with these values?
Well, let's see
Since 4 and 5 are values less than 7, you are going to be adding those numbers. 4 plus 5 is 9. 9 is greater than 7. This means that you can form a triangle with those numbers.
For this question, you are given a triangle that has the side lengths of 3 inches, 7 inches, and c inches. The question wants the range of values. Make c the shortest side and the longest side.
Let's start with longest first.
take 3 and 7
Add them and you will get 10.
10 is greater than c. or c<10.
For the shortest side make 7 the longest
3 plus c is less than 7
subtract 3 from both sides
then you get c is less than 4. or c<4.
So you have c<4 and c>10.
combine them to make a long inequality.
4<c<10.
That is your answer.
1/3 plus 1/4 so what is the answer
Answers
Answer:
The answer is 7/12
Answer:
7/12
Step-by-step explanation:
Which of the following functions has a factor of x−7?
f(x)=x3−16x2+53x+63
f(x)=x3−2x2−73x−70
f(x)=x3−16x2+53x+70
f(x)=x3−2x2−73x−77
Answers
According to the question, the function that has a factor of x - 7 is f(x) = x³ - 16x² + 53x+ 70
If x - a is a factor of a function f(x), then f(a) = 0
For x - 7 to be a factor of f(x), f(7) must be equal to zero.
For f(x) = x³ - 16x² + 53x+ 70
f(7) = 7³ - 16(7²) + 53(7) + 70
f(7) = 343 - 16(49) + 53(7) + 70
f(7) = 343 - 784 + 371 + 70
f(7) = 0
Since f(7) = 0 for f(x) = x³ - 16x² + 53x+ 70, x - 7 is a factor of f(x) = x³ - 16x² + 53x+ 70
Learn more here: https://brainly.com/question/19273656
Kaitlyn solved the equation 5y=15 and found answer to be y=75. In complete sentence or two, explain what kaitylns error was? What did she do wrong? What is correct answer? Show your work and explain reasoning
Answers
Answer:
3
Step-by-step explanation:
Instead of dividing, Kaitlyn multiplied both sides by 5. Divide both sides by 5 to get the y by itself and you get 3
Answer:
y=3
Step-by-step explanation:
She assumed y=75, but if y=75 then you would multiply 75×5 and that doesn't equal 15. To find y you would need to divide 5 from both sides. Therefore 15÷5 would be equal to y=3. Hope this helps!