Find the ratio of the areas of two circles of radii 8 cm and 12 cm comparing the smaller circle to the larger circle. Write the correct answer in the space below. Don't forget to simplify your ratio (both areas have pi in them). Please write your ratio as a fraction.
Answer:
4π : 9π
Step-by-step explanation:
→ Find the area of circle with radius 8
π × 8² = 64π
→ Find the area of circle with radius 12
π × 12² = 144π
→ Simplify ratios
64π : 144π ⇒ 4π : 9π
Let f(x) = x – 4 and g(x) = x^2 – 16.
Perform the function operation f(x) + g(x) and then find the domain.
Answer:
f(x) +g(x) = x^2 +x -20
domain: all real numbers
Step-by-step explanation:
The sum of two polynomial functions is found by adding the terms of each function definition:
f(x) +g(x) = (x -4) +(x^2 -16)
f(x) +g(x) = x^2 +x -20
__
The domain of any polynomial is "all real numbers." The set of polynomials is closed to addition, meaning the sum of any polynomials is another polynomial. The sum, too, will have a domain of "all real numbers."
What are the coordinates of A after reflecting across the line x = 3?
Answer:
It would be (3,2) since it is being reflected over the line it is already on
Step-by-step explanation:
Answer:(3,2)
Step-by-step explanation:Doube check make sure you double check and not click (3,-2) THAT IS NOT THE ANSWER THE ANSWER IS (3, 2)
Give the vertices of a triangle that dilated twice as big as triangle ABC if A(0, 0), B(8, 2), and C(12,5) (centered at the origin).
Answer:
0,0
16,4
24,10
multiple both numbers by two and those should be the coordinates
What is the surface area of this design? 8,8,8
Hi!
To find the surface area, we must first find the area of all of the faces and then add them together.
Because every face is the same size, the formula will be:
6(8 x 8)
6 represents the number of faces and 8 x 8 represents the formula to find the area of each.
6(8 x 8) =
6(64) =
384
The surface area of the cube is 384 square inches.
I hope this helps you!
-Nishaun
write two expression who sum is:
Answer:
x^2+x
Step-by-step explanation:
multipling all sides by x+1
find the median of the following 3,6,7,4,5,9,8,9,7
Answer:
7
Step-by-step explanation:
Median is the middle number from least to greatest meaning that 7 is the median.
Answer:
7
Step-by-step explanation:
Let's first sort it form lowest to highest. So it's going to be 3,4,5,6,7,7,8,9,9. Now, we ifnd the middle ofit, which is 7. The middle number of the sequence is 7 becaue there are 9 numbers total so that means that the 5th number is the median.
What is the slope of a line perpendicular to the line whose equation is 6x-10y=140. Fully simplify your answer.
y=14
10y=140
Divide both sides by 10.
y=
10
140
Divide 140 by 10 to get 14.
y=14
The slope of a line perpendicular is -5/3 to the line whose equation is 6x-10y = 140.
What is the slope of the line?The slope of a line is defined as the inclination of the line. It is denoted by m
Slope m = (y₂ - y₁)/(x₂ -x₁ )
Make the following equation in slope-intercept form:
y = mx + b
where m denotes the slope and (0,b) denotes the y-intercept (the point at which x = 0).
The given equation is:
6x - 10y = 140
-10y = - 6x + 140
Divided by -10 into both sides of the equation,
y = (6/10)x + 140/(-10)
y = (3/5)x -14
Here m = 3/5, b is (0,14)
The slope of this line is 3/5.
The slope of all of its perpendicular lines is (-1/m), which is the negative reciprocal of slope m.
Therefore, the slope of all perpendicular lines is (-5/3).
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The data set below shows the number of blocks John walked each day for ten days. If John’s sister wanted to use a measure of central tendency to argue that an average person walks more than John, which measure would she use?
A. the mean
B. the median
C. the mode
D. None of the measurements are accurate.
Answer:
the mean
Step-by-step explanation:
the mean basically means average, and you have to find out the average distance so ya.
hope this helps
please mark as brainliest thank you
PLEASE HELP ASAP!!!!!!!!!!!!
Ari mixed 2 1/4
cups of red grapes with 1/2 cups of green grapes. He then divided the grapes into bags with 3/4 cup of mixed grapes in each. How many bags of grapes will Ari have?
Answer:
3
Step-by-step explanation:
A photographer needs a frame for a 16 x 20 inch picture, such that the total area is 340 in2. Calculate the width of the frame. Which of the following quadratic equations would be used when solving this?
Answer:
A photographer needs a frame for a 16 x 20 inch picture, such that the total area is 340 in2. Calculate the width of the frame. Which of the following quadratic equations would be used when solving this?
Step-by-step explanation:
who df deleted my answer
BebeHowILook
Answer: 4x^2+72x=20
Step-by-step explanation: I took the quiz.
Find the product of −35∙−1.5.
Answer:
If I read the question right, then the answer is -36.5.
Step-by-step explanation:
Like I said, only if I read the question right. I read it as
(-35) - 1.5.
If I'm wrong, then I'm sorry.
The product of (−35)∙(−1). (5) will be 105. It is obtained by multiplying the term one by one.
What is an arithmetic operation?It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that are +, -, ×, and ÷.
We can utilize multiplication for a number of common tasks, such as figuring out how much it will cost to buy several identical things, calculating sales tax, and figuring out area and other geometric measurements.
It is given that,
=(−35)∙(−1).5
Multiply the term step by step as
=(−35)∙(−1).5
The multiplication of two negative terms gives a positive value.
=(35)5
=105
Thus, the product of (−35)∙(−1). (5) will be 105. It is obtained by multiplying the term one by one.
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Choose the net for the three-dimensional figure.
Hurry please guys
One lane on a motorway is closed by cones for a distance of 1 mile. The cones are placed 4 feet apart. How many cones are used?
Answer:
1320 cones
Step-by-step explanation:
1 mile = 5280 feet
For every 4 feet, 1 cone is placed so
5280/4 = 1320
Therefore 1320 cones are used.
Any questions lmk
Suppose c and d vary inversely, and d=2 when c=17.
a. Write an equation that models the variation.
b. Find d when c=68.
Answer:
a. x - cd = 0
b. d = 1 / 2
Step-by-step explanation:
d = 2
c = 7
a.
c is inversely proportional to d,
c ∝ 1 / d
This inversely proportional need to be removed by using a variation / variable.
Let the variable be " x ".
c = x / d
Multiply d on both sides,
cd = x
x = cd
Subtract cd on both sides,
x - cd = 0
Hence, the equation is " x - cd = 0 ".
b.
By using the equation,
x - cd = 0
Add cd on both sides,
x = cd
c = 17, d = 2
x = 17 * 2
x = 34
To find d, when c = 68.
x = cd
34 = 68 * d
Divide 68 on both sides,
34 / 68 = d
1 / 2 = d
d = 1 / 2
If a - b=7, what is also true?
A
B
C
D
Answer: B. a + (-b) = 7
Step-by-step explanation:
The answer is B. a + (-b) = 7. a + (-b) is the same thing with a - b.
A. a + b = -7
a - b = 7 means the differences of a and b is 7, choice A is talking about their sum, so it could not be true.
C. -a - b = 7
if you multiply -1 on both sides, you will get a + b = -7. Therefore, it will not be true.
D. b - a = 7
a - b = 7 means that a is 7 more than b. The choice d shows the opposite, which it states that b is 7 more than a. Therefore, it is not true.
n + 6
5
2
= 17
solve n please
Hey there!
=> n + 652 = 17 { Substract 652 from both sides}
=> n + 652 -652 = 17 - 652
=> n = 17 -652
=> n = -635
Therefore, N = -635
A flag has an area of 504 square inches. Its perimeter is 92 inches. What are the dimensions of the flag?
You put money in two different accounts for one year each. The total simple interest for the two accounts is $140. You earn 6% interest on the first account, in which you deposited $1000. You deposited $800 in the second account. What is the annual interest rate for the second account?
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
smal and blurry
Step-by-step explanation:
Angle 4 and Angle _____ are vertical angles.
Find the midpoint (-1,3) and (5,-4)
Answer:
(2,-0.5)
Step-by-step explanation:
Answer: (2,-0.5)
Step-by-step explanation:
You need to find the difference between the x's and the y's, then divide by 2.
Step 1: Find the difference between the x's
5 + -1 = 4
Step 2: Find the difference between the y's
-4 + 3 = -1
Step 3: Divide both the results by 2
4/2 = 2
-1/2 = -0.5
Hours
7 2/3
1 2/5
4 3/4
8 4/5
All three points displayed are on the line. Find an equation relating x and y.
Answer:
y = 2x - 3
Step-by-step explanation:
The graph is a straight line, thus linear with equation
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (3, 3) and (x₂, y₂ ) = (6, 9) ← 2 points on the line
m = [tex]\frac{9-3}{6-3}[/tex] = [tex]\frac{6}{3}[/tex] = 2 , thus
y = 2x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (3, 3 ), then
3 = 6 + c ⇒ c = 3 - 6 = - 3
y = 2x - 3 ← equation relating x and y
The equation whigh relates x and y points on the graph can be expressed in slope-intercept form as y = 2x - 3
The general form of a slope - intercept equation is :
y = bx + cb = slope ; c = interceptSlope, b = Rise / Run
Rise = 9 - 3 = 6 Run = 6 - 3 = 3Slope, b = 6/3 = 2
Taking a pair of point on the graph :
(3, 3)
3 = 2(3) + c
3 = 6 + c
3 - 6 = c
c = - 3
Therefore equation can be expressed thus :
y = 2x - 3Learn more : https://brainly.com/question/18618957
X
300
A *=97,7-9
B. x = 18, y=9.13
C. x=9/3, y=45
D. *= 6/3.y-3/
Answer:
i think it is B
Step-by-step explanation
i hope this helps
dentify the domain of the relation {(2,-3), (6, 2), (-5, 9)}. Be sure to use a comma between the numbers and write the domain in order from smallest to largest
Answer:
D: -5,2,6
Step-by-step explanation:
In the Long Beach Air Race, six planes are entered and there are no ties, in how many ways can the first three finishers come in?
Answer:
swim bike and run.
Step-by-step explanation:
Brett bought x adult tickets at $5 each and y children tickets at $2 each. He spent $60
total. Solve for y
Answer:
Step-by-step explanation:
x->5
y->2
x*5+y*2=60
if x=10——> y=5 ——> 50+10=60
if x=8——> y=10——> 40+20=60
if x=6——> y=15 ——> 30+30=60
if x=4——> y=20 ——> 20+40=60
if x=2——> y=25 ——> 10+50=60
The time to assemble a television at a factory is 2.5 hours. A stereo only requires 1.5 hours. The factory workers can supply at least 580 and at most 750 hours of assembly time each week. The factory is producing 3 times as many televisions as stereos. What is the inequality?
A) 580=<4x=<750
B) 580<4<750
C)580=<9=<750
D)580<4<750
Answer: a
Step-by-step explanation:
Factor completely 2x3 8x2 3x 12. (2x2 3)(x 4) (2x2 3)(x − 4) (2x2 − 3)(x 4) (2x2 − 3)(x − 4).
The factorisation of the polynomial [tex]2x^3+8x^2+3x+12[/tex] can be done as [tex](2x^2+3)(x+4)[/tex].
What is a factor?A factor of n is a number that when multiplied by another number gives us the number n.
In order to factorise the given polynomial, we need to take the common terms out, therefore, the factorisation of the given polynomial can be done as,
[tex]2x^3+8x^2+3x+12[/tex]
Take 2x² as the common term from the first two terms and 3 from the last two terms,
[tex]2x^3+8x^2+3x+12\\\\= 2x^2(x+4)+3(x+4)\\\\=(2x^2+3)(x+4)[/tex]
Hence, the factorisation of the polynomial [tex]2x^3+8x^2+3x+12[/tex] can be done as [tex](2x^2+3)(x+4)[/tex].
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