Answer:
see explanation
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 6)² + (y + 1)² = 40 ← is the equation of a circle in standard form
centre = (6, - 1) and r = [tex]\sqrt{40}[/tex] = 2[tex]\sqrt{10}[/tex]
(3x − 4)(2x2 + 2x − 1)
Answer:
6x3−2x2−11x+4
Step-by-step explanation:
the numbers after the x are squared
My question is 9 + 12n
Answer:
3(3 +4n)
OR
9 + 12n
Step-by-step explanation:
9 + 12n
Factorize it
3(3 +4n)
OR
The answer is the same.
Since we can't add a number with a number and letter. So in that case the answer is ;
9 + 12n.
Hope it helps!!Please mark me as the brainliest!!!Thanks !!!!
5x+7+3x=-8+3x please solve it before 8:30
Answer:
x=-3
Step-by-step explanation:
5x+7+3x=-8+3x
Combine like terms
8x+7 = 3x-8
Subtract 3x from each side
8x+7-3x = 3x-8-3x
5x+7 = -8
Subtract 7 from each side
5x+7-7 = -8-7
5x = -15
Divide each side by 5
5x/5 = -15/5
x = -3
Someone help please thank you
Answer:
See below.
Step-by-step explanation:
So we have the two functions:
[tex]f(x)=8x-5\text{ and } g(x)=9-2x[/tex]
And we want to find:
[tex](f\circ g)(x)\text{ and } (g\circ f)(x)[/tex]
1)
Recall that:
[tex](f\circ g)(x)[/tex]
is the same as:
[tex]=f(g(x))[/tex]
Thus, we can substitute g(x):
[tex]=f(9-2x)[/tex]
And substitute that into f(x):
[tex]f(x)=8x-5\\f(9-2x)=8(9-2x)-5[/tex]
Distribute:
[tex]=72-16x-5[/tex]
Subtract and simplify:
[tex]=67-16x\\=-16x+67[/tex]
Thus:
[tex](f\circ g)(x)=-16x+67[/tex]
2)
Similarly:
[tex](g\circ f)(x)=g(f(x))[/tex]
Substitute f(x):
[tex]g(f(x))=g(8x-5)[/tex]
Substitute:
[tex]g(8x-5)=9-2(8x-5)[/tex]
Distribute:
[tex]=9-16x+10[/tex]
Simplify:
[tex]=-16x+19[/tex]
Therefore:
[tex](g\circ f)(x)=-16x+19[/tex]
Calculate the total percentage of the shaded
region in both circles.
Answer:
80%
Step-by-step explanation:
Total area is the area of two circles. Each circle if accepted as a unit, in total it equals to 2 units.
Shaded area:
1 + 3/5 = 8/5Percentage of shaded area compared to total:
8/5 ÷ 2 = 4/5 = 0.8 =80%Answer: 80% of all region is shaded
Which expression is equivalent to (3^4 • 5^4)^-3
A. 1/15^3
B. 15^-48
C. 1/15^12
D. 15^5
Tania chose B as the correct answer, How did she get that?
3^4*5^4 = (3*5)^4 = 15^4
Raise this to the exponent -3 and we get
(3^4*5^4)^(-3) = (15^4)^(-3) = 15^(4*(-3)) = 15^(-12)
The last step is to use the rule
x^(-k) = 1/( x^k )
So,
15^(-12) = 1/( 15^12 )
The answer is actually choice CIt seems like Tania multiplied all the exponents to get 4*4*(-3) = 16*(-3) = -48, but you only multiply the inner and outer exponents together as I did when I went from (15^4)^(-3) to 15^(-12)
PLEASE HELPWILL GIVE BRAINLIEST 1/x+7 = 15/5(x+7) - 2 or [tex]\frac{1}{x+7} = \frac{15}{5(x+7)} - 2[/tex]
Greetings from Brasil...
We will pass the - 2 to the 1st member
2 + [1/(X + 7)] = 15/(5(X + 7))
simplifying the numerator and denominator of the 2nd member
2 + [1/(X + 7)] = 3/(X + 7)
solving the sum of the 1st member
(2X + 15)/(X + 7) = 3/(X + 7)
product of the means by extremes
(2X + 15) · (X + 7) = 3 · (X + 7)
2X² + 15X + 14X + 105 = 3X + 21
2X² + 29X - 3X + 105 - 21 = 0
2X² + 26X + 84 = 0solving this 2nd degree equation
Δ = b² - 4.a.c
Δ = 26² - 4 . 2 . 84
Δ = 676 - 4. 2 . 84
Δ = 4
X' = (-26 + √4)/2.2 X'' = (-26 - √4)/2.2
X' = -24 / 4 X'' = -28 / 4
X' = -6 X'' = -7How many ways can 4 people sit in a table of 6 seats? A.120
B.24
C.360
D.15
Answer:
I thought it would be 24
Solve for r 28=4r+28
Answer:
r = 0
Step-by-step explanation:
Subtract 28 from each side, so it now looks like this: 0 = 4rDivide each side by 4, to cancel out the 4 attached to the r. It should now look like this: 0 = r.0 remains a 0 because 0 can't be divided.Therefore, r = 0.
Check to see if it works:
4 × 0 = 0. This is because anything times 0 is 0.Plug 0 in: 28 = 0 + 280 + 28 = 28Therefore, we know 0 is the right answer because as it says in the last step,
0 + 28 is indeed equal to 28, which the problem says is the answer.
Answer: [tex]x=0[/tex]
Flip the equation
[tex]4r+28=28[/tex]
Subtract 28 from both sides
[tex]4r+28-28=28-28\\4r=0[/tex]
Divide both sides by 4
[tex]4r/4=0/4\\x=0[/tex]
1.2.41
Yuson used her calculator to solve the equation x-
- 8 = 3. She entered the following on her screen and got an incorrect answer. How
could she use parentheses to find the correct answer? Explain. What is the correct answer?
Answer:
[tex]x - (-8) = 3[/tex]
[tex]x = -5[/tex]
Step-by-step explanation:
Equation
[tex]x - -8 = 3[/tex]
Solving (a): Using Parenthesis
The equation can be rewritten by putting -8 in a parenthesis as follows;
[tex]x - (-8) = 3[/tex]
Solving (b): The correct answer
[tex]x - (-8) = 3[/tex]
Start by opening the bracket
[tex]x + 8 = 3[/tex]
Subtract 8 from both sides
[tex]x + 8 - 8 = 3 - 8[/tex]
[tex]x = 3 - 8[/tex]
[tex]x = -5[/tex]
Hence, the correct solution is [tex]x = -5[/tex]
The price of a winter coat and a 20% discount
Hey, your question is incomplete so, plz write complete question to get the required answer
Two of the sides of a triangle are $18$ and $25.$ The length of the third side is also a positive integer. How many different possible values are there for the third side length? Ps: (Geometry Problem) Have fun!
Answer:
A set of all positive integers between 7 and 43.
Step-by-step explanation:
If a triangle is given with the sides a, b, c, triangle is possible when,
a + b > c
a + c > b
b + c > a
Following the same rule in a triangle having side lengths 18, 25 and l unit.
18 + 25 > l ⇒ l < 43
18 + l > 25 ⇒ l > 7
25 + l > 18 ⇒ l > -7
Therefore, length of the third side of the triangle will be,
7 < l < 43 (A set of positive integers between 7 and 43)
Name an angle that is supplementary to
Answer:
to what?
Step-by-step explanation:
please answer will reward with brainliest if you give me the answer and an explanation.
Answer:
Root 37
Step-by-step explanation:
All of the others are square numbers so they have no decimal numbers. Root 37 = 6.08...... making it an irrational number.
I need #5 and #7 answered please.
Answer:
Step-by-step explanation:
5). y = 4 - x²
Table for the points on this function will be,
x -2 -1 0 1 2
y 0 3 4 3 0
Therefore, Domain of the function will be: (-∞, ∞)
And Range of the function will be : (-∞, 2]
7). [tex]y=2+\sqrt{x-1}[/tex]
This function is defined from the values of x ≥ 1
Table for the input-output values of this function is,
x 1 2 5 10 17
y 2 3 4 5 6
Therefore, Domain of the function will be: [1, ∞)
And Range of the function : [2, ∞)
PLLLLLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME RIGHT NOW ASAP Pineapples are on sale for $1.50 per pound. Let y be the total cost in dollars of x pounds of pineapple which equation represents the situation
Answer:
y = 1.5x
Step-by-step explanation:
Cost of pineapples:
$1.50 per poundx pounds of pineapple will cost:
x*$1.50 = $ 1.5xThis function is represented as:
y = 1.5x
The area of a triangle is 150 cm- and its sides are in the ratio 3: 4:5. What is its perimeter?
(A) 10 cm
(B) 30 cm (C) 45 cm
(D) 60 cm
Short Response 16. Parallel lines p and q are cut by transversal t to form angles 1-8. If 22 and 27 are alter- nate exterior angles, 27 and 26 are vertical angles, and 26 and 24 are consecutive interior angles, what can you conclude about the relationship between the angle measures of 22 and 24? Explain.
I don’t understand how to solve this, please help!!
Answer:
see below (I hope this helps!)
Step-by-step explanation:
Alternate exterior angles are congruent so we know that ∠2 ≅ ∠ 7. Vertical angles are also congruent so ∠7 ≅ ∠6. Consecutive interior angles are supplementary so we know that ∠6 and ∠4 are supplementary. Now, we can use the Transitive Property (this states that if a = b and b = c then a = c) to compare ∠2 and ∠4. In this case, a = ∠2, b = ∠7 and c = ∠6 so we know that ∠2 ≅ ∠6 and since ∠6 is supplementary to ∠4, we can use the Transitive Property again to conclude that ∠2 and ∠4 are supplementary.
Rayée sold 3 desks at the local trade show. H paid $4.00 to rent the booth. He gave half of his revenue to the carpenter and was left with $185.50. At what price did he Rayen sell with each desk
Answer:
$125
Step-by-step explanation:
Given the following :
Number of desks sold = 3
Amount of rent paid = $4
Amount paid to carpenter = 1/2 of revenue
Amount left = $185.50
At what price did Ryan sell each desk?
If Rayee gave half of his revenue to the carpenter and then had $185.50 left,
The his revenue before paying the carpenter will be twice what he has left ($185.50 * 2) = $371
Hence, total revenue from the sale of 3 desk= ($371 + rent) = (371 + 4) = $375
Then each desk cost :
$375 / 3 = 125
$125
For each problem, find the missing value using the Pythagorean Theorem
Answer: [tex]\sqrt{66}[/tex]
Step-by-step explanation:
The Pythagorean Theorem says that a^2 + b^2 = c^2 where a and b are the two legs.
In this care leg 1 is 4 and leg two is the square root of 50. So we will square them to find c which is the hypotenuse.
4^2 + [tex]\sqrt{50} ^2[/tex] = C^2
16 + 50 = c^2
66 = c^2
c =[tex]\sqrt{66}[/tex]
What is the difference between law and scientific law.
Answer:
A hypothesis is a limited explanation of a phenomenon; a scientific theory is an in-depth explanation of the observed phenomenon. A law is a statement about an observed phenomenon or a unifying concept, according to Kennesaw State University. ... However, Newton's law doesn't explain what gravity is, or how it works.
Step-by-step explanation:
Answer:
law is federal
Step-by-step explanation:
ik
Find all values of $x$ such that 9+27/x+8/(x^2)=0
Answer:
Step-by-step explanation:
Multiply by x^2 on both sides
9x^2+27x+8=0
Factor.
The answers are -1/3, -8/3
Solve the equation. Determine if there there is no solution, infinite solutions, or one solution. —2 (x - 2) - 4x = 3 (x + 1) – 9x O Infinite Solutions O No Solution O One Solution; x = -1/12 O One Solution; x = -1
Answer:
(no solutions exist)
Step-by-step explanation:
Solve the equation
(If possible please show work)
Answer:
x = 0
Step-by-step explanation:
First, distribute the -4 to the parentheses:
-4 + 3x = 2x - 4(1 - 3x)
-4 + 3x = 2x - 4 + 12x
Then, add like terms:
-4 + 3x = 14x - 4
Solve for x:
3x = 14x
0 = 11x
0 = x
Answer:
x=0
Step-by-step explanation:
We are given the following equation and asked to solve. We must solve for x by isolating x on one side of the equation.
-4 + 3x= 2x-4(1-3x)
First, distribute the -4. Multiply each term inside the parentheses by -4.
-4+3x=2x + (-4*1) + (-4*-3x)
-4+3x= 2x -4 + (-4*-3x)
-4+3x= 2x-4+12x
Combine like terms on the right side of the equation. The terms 2x and 12x can be added.
-4+3x= (12x+2x)-4
-4+3x=14x-4
Next, subtract 3x to both sides of the equation.
-4+3x-3x=14x-3x-4
-4= (14x-3x)-4
-4= 11x-4
Next, add 4 to both sides of the equation.
-4+4=11x-4+4
-4+4=11x
0=11x
Finally, divide both sides of the equation by 11.
0/11= 11x/11
0/11=x
0=x
The solution to the equation -4 + 3x= 2x-4(1-3x) is x=0
please help me on this
Answer:
Median
Step-by-step explanation:
A line that goes from the vertex of a triangle to the midpoint of the opposite side is a median.
Please help me on this question
Answer:
please mark my answer brainliest
Step-by-step explanation:
11 students 26 students that 2 small divisions =1 unit =1 studentWrite the expression in exponential form.
[tex] \sqrt{10} [/tex]
When we use an exponent of 1/2, it is the same as a square root. The more general rule is
[tex]\sqrt{x} = x^{1/2}[/tex]
In this case, we plug in x = 10.
The use of a fractional exponent is handy when you want to deal with things like cube roots on a calculator. This is because
[tex]\sqrt[3]{x} = x^{1/3}[/tex]
Many calculators don't have a button labeled [tex]\sqrt[3]{}[/tex] but they have the button [tex]x^y[/tex] to allow fractional exponents.
Determine the degree of the Maclaurin polynomial required for the error in the approximation of the function at the indicated value of x to be less than 0.001.
Answer: n> or equals to 3
Step-by-step explanation:
Find explanation on the attachment
domain and range of a function
Answer:
The domain of a function is the set of all possible inputs for the function. The range of a function is the set of all possible outputs for the function.
Step-by-step explanation:
The area of a rectangle is 560 cm^2. The length is 3 more than twice the width. Find the dimensions of the rectangle.
Let the width be x.
Then,length = 2x + 3
Area of rectangle = 560 [ Given ]
⇒ l × b = 560
⇒ ( 2x + 3 ) x = 560
⇒ 2x² + 3x - 560 = 0
⇒ 2x² + 35x - 32x - 560 = 0
⇒ x ( 2x + 35 ) - 16 ( 2x + 35 ) = 0
⇒ ( x - 16 ) = 0 and ( 2x + 35 ) = 0
⇒ x = 16 and x = -35/2 [ Ignore negative number ]
★ Width = x = 16 cm
★ Length = 2x + 3 = 2 × 16 + 3 = 32 + 3 = 35 cm