Answer:
There are 925 in half of a year
There are 1321 in 2 years
There are 8838 in 10 years
Step-by-step explanation:
* Lets revise the exponential function
- The original exponential formula was y = ab^x, where a is the initial
amount and b is the growth factor
- The new growth and decay functions is y = a(1 ± r)^x. , the b value
(growth factor) has been replaced either by (1 + r) or by (1 - r).
- The growth rate r is determined as b = 1 + r
* Lets solve the problem
∵ The number of fish is growth every month
∴ We will use the growth equation y = a(1 + r)^x, where a is the initial
amount of the fish, r is the rate of growth every month and x is the
number of months
- There are 821 of a type of fish
∴ The initial amount is 821 fish
∴ a = 821
- Their growth rate is 2% each month
∴ The rate of growth is 2% per month
∴ r = 2/100 = 0.02
- We want to find how many of them be in half year
∵ There are 6 months in half year
∴ y = 821(1 + 0.02)^6
∴ y = 821(1.02)^6 = 924.58 ≅ 925
* There are 925 in half of a year
∵ There are 24 months in 2 years
∴ y = 821(1 + 0.02)^24
∴ y = 821(1.02)^24 = 1320.53 ≅ 1321
* There are 1321 in 2 years
∵ There are 120 months in 10 years
∴ y = 821(1 + 0.02)^120
∴ y = 821(1.02)^120 = 8838.20 ≅ 8838
* There are 8838 in 10 years
The cycling tour has 340 bottles of water for each week.there are 10 people on the tour. How many bottles of water is that for each person per week
Answer:
34 bottles per person per week
Step-by-step explanation:
1) identify info: The cycling tour has 340 bottles of water for each week.there are 10 people on the tour.
2) compile info: 340 bottles for 10 people per week
3) calculate: bottles per person = 340/10 = 34 bottles per person each week
The question asks to figure out how many bottles of water each person on a cycling tour gets per week. By dividing the total bottles of water (340) by the number of people (10), we find that each person receives 34 bottles of water per week.
Explanation:The question is asking us to determine how many bottles of water each person on the cycling tour gets per week. This involves division in mathematics as we are dividing the total number of water bottles by the number of people.
To solve such problems, we start with the total amount given, which is 340 bottles of water here. Then, we divide this total by the number of individuals, which is 10 people in this case. So, the calculation becomes 340 bottles ÷ 10 people.
This calculation gives us 34 bottles. Hence, each person on the cycling tour gets 34 bottles of water per week.
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Which is a rational function?
AnswerB. because x is in denominator
Step-by-step explanation:
6. PATTERNS Complete the pattern: 5, 7,
10, 14,
Answer:
19 is the next number
Step-by-step explanation:
5+2=7
7+3=10
10+4=14
14+5=19
The next number in the pattern is 19.
To complete the number pattern 5, 7, 10, 14, we observe that the differences between the numbers increase by 1. Continuing this pattern, we add 5 to the last number, which results in 19. Thus, the next number in the pattern is 19
To complete the given number pattern: 5, 7, 10, 14, we need to find the rule that governs the pattern. Let's look at the differences between the numbers:
7 - 5 = 210 - 7 = 314 - 10 = 4We can see that the differences are increasing by 1 each time. If this pattern continues, the next difference should be 5. So we add 5 to the last number in the pattern:
14 + 5 = 19
Therefore, the next number in the pattern is 19.
What are the coordinates of the point 3/5 of the way from A(-9,3) to B(21, -2)
Answer: The required co-ordinates of the point are (9, 0).
Step-by-step explanation: We are given to find the co-ordinates of the point that is [tex]\dfrac{3}{5}[/tex] of the way from A(-9,3) to B(21, -2).
Let K be the required point. Then, we mus have
[tex]AK:AB=3:5\\\\\Rightarrow \dfrac{AK}{AK+BK}=\dfrac{3}{5}\\\\\\\Rightarrow 5AK=3AK+3BK\\\\\Rightarrow 2AK=3BK\\\\\Rightarrow AK:BK=3:2.[/tex]
We know that
the co-ordinates of a point that divides the line joining the points (a, b) and (c, d) in the ratio m : n are given by
[tex]\left(\dfrac{mc+na}{m+n},\dfrac{md+nb}{2}\right).[/tex]
For the given division, m : n = 3 : 2.
Therefore, the co-ordinates of the point K are
[tex]\left(\dfrac{3\times21+2\times(-9)}{3+2},\dfrac{3\times(-2)+2\times3}{3+2}\right)\\\\\\=\left(\dfrac{63-18}{5},\dfrac{-6+6}{5}\right)\\\\=\left(\dfrac{45}{5},\dfrac{0}{5}\right)\\\\=(9,0).[/tex]
Thus, the required co-ordinates of the point are (9, 0).
Building and solving an equation, it is found that the coordinates are: (9,0).
We are given two points: A(-9,3) and B(21, -2).We also want point C(x,y).C is 3/5 of the way from A to B, thus:
[tex]C - A = \frac{3}{5}(B - A)[/tex]
This is used to find both the x-coordinate and the y-coordinate of C.
First, the x-coordinate, considering [tex]C = x, A = -9, B = 21[/tex].
[tex]C - A = \frac{3}{5}(B - A)[/tex]
[tex]x + 9 = \frac{3}{5}(21 + 9)[/tex]
[tex]x = 18 - 9[/tex]
[tex]x = 9[/tex]
Then, the y-coordinate, considering [tex]C = y, A = 3, B = -2[/tex].
[tex]C - A = \frac{3}{5}(B - A)[/tex]
[tex]y - 3 = \frac{3}{5}(-2 - 3)[/tex]
[tex]y = -3 + 3[/tex]
[tex]y = 0[/tex]
Thus, the coordinates are (9,0).
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Which graph below solves the following system of equations correctly?
y = three over four times x squared minus 3
y = negative three over four times x squared plus 3
A) two quadratic graphs opening up. They intersect at 0 and negative 3.
B)one quadratic graph opening up and one quadratic graph facing down. They intersect at 0, 3.
C) quadratic graph opening up and quadratic graph opening down. They intersect at 0, negative 3.
D) two parabolas one facing down with a vertex at 0, 3 and one facing up with a vertex at 0, negative 3
D) two parabolas one facing down with a vertex at 0, 3 and one facing up with a vertex at 0, negative 3
Step-by-step explanation:First of all, let's rewrite the equations in a mathematical language:
y = three over four times x squared minus 3:[tex]y=\frac{3}{4}x^2-3[/tex]
Since the leading coefficient, the number that accompanies [tex]x^2[/tex] is positive, that is, its value is 3/4, then the parabola opens upward. On the other hand, the vertex can be found as:
[tex](h,k)=\left(-\frac{b}{2a},f\left(-\frac{b}{2a}\right)\right) \\ \\ a=3/4 \\ b=0 \\ c=-3 \\ \\ h=-\frac{0}{2(3/4)}=0 \\ \\ k=f(0)=\frac{3}{4}(0)^2-3=-3 \\ \\ \\ \boxed{Vertex \rightarrow (h,k)=0,-3}[/tex]
y = negative three over four times x squared plus 3:[tex]y=-\frac{3}{4}x^2+3[/tex]
Since the leading coefficient is negative, that is, its value is -3/4, then the parabola opens downward. Similarly the vertex can be found as:
[tex](h,k)=\left(-\frac{b}{2a},f\left(-\frac{b}{2a}\right)\right) \\ \\ a=-3/4 \\ b=0 \\ c=3 \\ \\ h=-\frac{0}{2(-3/4)}=0 \\ \\ k=f(0)=-\frac{3}{4}(0)^2+3=3 \\ \\ \\ \boxed{Vertex \rightarrow (h,k)=0,3}[/tex]
Both graph are shown below and you can see that the conclusion of our problem is correct.
For f (c)=2x+1 and g(x)=x^2 - 7 find (f-g)(x)
Answer:
[tex]\large\boxed{D.\ -x^2+2x+8}[/tex]
Step-by-step explanation:
[tex](f-g)(x)=f(x)-g(x)\\\\f(x)=2x+1,\ g(x)=x^2-7\\\\\text{substitute:}\\\\(f-g)(x)=(2x+1)-(x^2-7)=2x+1-x^2-(-7)=2x+1-x^2+7\\\\=-x^2+2x+(1+7)=-x^2+2x+8[/tex]
A tank holds 17 3/5 gallons after losing 36 2/3 gallons, 4 5/6 gallons,and 27 1/12 gallons in 3
Consecutive days. If at the beginning the tank was 20 3/4 gallons short of capacity. What is the capacity of the tank? NEED HELP PLSSS ASAP
Answer:Maybe if you studded you would have the answer young man
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that A tank holds 17 3/5 gallons after losing 36 2/3 gallons, 4 5/6 gallons,and 27 1/12 gallons in 3
Consecutive days. If at the beginning the tank was 20 3/4 gallons short of capacity.
Tank full capacity = loss for 3 days + holding of tank after losing + shortage of capacity
To add these first let us convert these into improper fractions, then take lcd to add
Full capacity = [tex]\frac{88}{5} +\frac{110}{3} +\frac{29}{6} +\frac{325}{12} \\=\frac{88}{5} +\frac{440+58+325}{12} \\=\frac{1056+4115}{60} =[/tex][tex]=86.183[/tex] gallons
Math 8: Linear Functions, Part 2
Write an equation in point-slope form that passes through the given
point with the given slope.
2. (-1, 8), m = 1
1. (3,5), m = -4
Please help me
Answer:
[tex]\boxed{\text{1. y + 5 = -4(x - 3); \qquad 2. y - 8 = x + 1}}[/tex]
Step-by-step explanation:
Question 1
The point-slope formula for a straight line is
y – y₁ = m(x – x₁)
x₁ = 3; y₁ = -5; m = -4
Substitute the values
[tex]\boxed{\textbf{y + 5 = -4(x - 3)}}[/tex]
The diagram shows the graph of equation 1 (red) with slope -4 passing through (3,-5).
Question 2
x₁ = -1; y₁ = 8; m = 1
Substitute the values
[tex]\boxed{\textbf{y - 8 = x + 1}}[/tex]
The diagram shows the graph of equation 2 (green) with slope 1 passing through (-1,8).
Initially, there were only 86 weeds in the garden. The weeds grew at a rate of 29% each week. The following function represents the weekly weed growth: f(x) = 86(1.29). Rewrite the function to show how quickly the weeds grow each day.
A.f(x) = 86(1.04)*; grows approximately at a rate of 0.4% daily
B.f(x) = 86(1.04)7%, grows approximately at a rate of 4% daily
C.f(x) = 86(1.29)7%; grows approximately at a rate of 20% daily
D.f(x) = 86(1.297); grows approximately at a rate of 2% daily
Answer:
Option A. [tex]f(x)=86[1.04]^{x}[/tex] ; grows approximately at a rate of 0.4% daily
Step-by-step explanation:
we have
[tex]f(x)=86(1.29)^{x}[/tex]
where
f(x) the number of weeds in the garden
x ----> the number of weeks
Calculate how quickly the weeds grow each day
Remember that a week is equal to seven days
so
[tex]f(x)=86(1.29)^{\frac{x}{7}}[/tex]
Using the law of exponents
b^(x/a) = b^(x*(1/a)) = (b^(1/a))^x
so
[tex]f(x)=86[(1.29)^{\frac{1}{7}}]^{x}[/tex]
[tex]f(x)=86[1.04]^{x}[/tex]
therefore
The rate is approximately
1.04=1+r
r=1.04-1=0.04=4% daily
not sorry, but guy above is w.r.o.n.g
0.4 ain't right
yw for saving you an attempt
Simplify
8(x + 6) - 10.
Answer:
8 x + 38 higher it is not available
does anyone know the passwords for the module tests for geometry? i use FLVS and my teacher is Ms. Branch
Every check has an extraordinary password and changes often- You’ll probably have to finish a DBA or brief cellphone call along with your instructor to advantage get entry.
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Devin recorded the number of hours he played a video
game, x, and the levels he achieved, y. The regression
calculator shows the equation for the line of best fit.
Use the equation to interpolate the values and estimate
the time it would take him to get to level 5. Round to
the nearest half hour.
hours
Answer:3 hours
Step-by-step explanation:
i did it one edg
(02.02LL)
If f(x) = 2(X - 5), find f(8).
Answer:
6
Step-by-step explanation:
You can see how f(x) is now f(8), this implies you have to replace any x's you see with an 8.
So f(8) = 2(8-5) = 2(3) = 6
Kevin wants to buy an area rug for his living room. He would like the area rug to be no smaller that 48 square feet and no bigger than 80 square feet. If the length is 2 feet more than the width, what are the range of possible values for the width?
Answer:
[tex]6\leq W\leq 8[/tex]
[tex]8\leq L\leq 10[/tex]
Step-by-step explanation:
Let the length of the rug be = L
Let the width of the rug be = W
Area =[tex]L\times W[/tex]
The length is 2 feet more than the width, so [tex]L=W+2[/tex]
Area = [tex](W+2)\times W[/tex]
= [tex]W^{2} +2W[/tex]
Now given is that the area of rug to be no smaller that 48 square feet and no bigger than 80 square feet.
This can be modeled as:
[tex]48\leq W^{2} +2W\leq 80[/tex]
Solving it separately:
[tex]48\leq W^{2} +2W[/tex]
=> [tex]0\leq W^{2}+2W \leq -48[/tex]
=> [tex]6\leq W[/tex]
[tex]W^{2} +2W-80\leq 0[/tex]
=> [tex]W\leq 8[/tex]
We have the following result:
[tex]6\leq W\leq 8[/tex]
And length will be :
[tex]6+2\leq L\leq 8+2[/tex]
[tex]8\leq L\leq 10[/tex]
In a circle with a diameter of 25.2 ft. An arc is intercepted by a central angle of 168°. What is the arch length? Use 3.14 for pi and round your final answer to the nearest hundredth.
if the circle has a diameter of 25.2, its radius is half that or 12.6.
[tex]\bf \textit{arc's length}\\\\ s=\cfrac{\pi \theta r}{180}~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad degrees\\ \cline{1-1} r=12.6\\ \theta =168 \end{cases}\implies s=\cfrac{\pi (168)(12.6)}{180} \\\\\\ s=11.76\pi \implies \implies \stackrel{\pi =3.14~\hfill }{s=36.9264}\implies \stackrel{\textit{rounded up}}{s=36.93}[/tex]
what is the sum of the product of a and b and the number c? write as an expression
Step-by-step explanation:
The sum of the product of a and b and the number c:i
[tex]a\cdot b+c=ab+c[/tex]
The sum of the product of a and b and the number c, written as a mathematical expression, is ab + c.
Explanation:The question is asking for the sum of the product of a and b and the number c. In mathematical terms, this can be written as an expression: ab + c. This expression first calculates the product of a and b (represented by 'ab') then adds the number c to this product.
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What is the length of line segment AD?
8 units
14 units
22 units
36 units
Answer:
22
Step-by-step explanation:
With a kite, the top 2 segments are always equal, and the bottom 2 segments are always equal. Also, if you look at the little red lines on the sides, you can see that AD and CD have 2, that means they are the same length
(Also can you please rate this answer as brainliest? I need it to level up.)
Answer:
22 units
Step-by-step explanation:
AD = CD because the two little line marks means they are equal to each other
AD = 22
distance
Jason took 40 min to drive from East Mall to West Mall. He drove at an average
speed of 60 km/h for the first 25 min. He then increased his speed by 12 km/h for
the remaining journey. What was the distance between the two malls?
Answer: 28 km
Step-by-step explanation: For the first 25 minutes, he drove 60 km/h. Since there is 60 minutes in an hour, we know that he drove 25 km. The rest of the journey is 15 minutes. 15 minutes is 1/4 of an hour, so get 1/4 of 12 km/h. This would be 3 km. Add 25 km and 3 km. The distance between the 2 malls is 28 km.
The graph of the equation below is a circle. What is the length of the radius of
the circle?
(x + 5)2 + (y + 7)2 = 212
O A. 441
O B. 42
O C. 10.5
O D. 21
Answer:
D. 21.
Step-by-step explanation:
The general form of the equation of a circle is:
(x - a)^2 + (y - b)^2 = r^2 where r is the radius.
Comparing:
(x + 5)^2 + (y + 7)^2 = 21^2
So r^2 = 21^2
making r = √21^2
= 21.
The length of the radius of the circle is 21.
What is Circle?Circle is a two dimensional figure which consist of set of all the points which are at equal distance from a point which is fixed called the center of the circle.
Standard form of a circle is given by the equation,
(x - h)² + (y - k)² = r²
where, (h, k) is the center of the circle and r is the radius of the circle.
Here, given equation is,
(x + 5)² + (y + 7)² = 21²
Comparing this with the standard form,
(-5, -7) is the center and 21 is the radius.
Hence the correct option is D. 21.
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Comparing decimals 0.49 to 0.94 is that equal ? or 0.94 more..?
the simple fact that 94 is 49 backwards means nothing, anymore than say 001 and 100 are equal quantities or related other than in the digits.
so, 0.49 or 49/100 and 0.94 or 94/100, are two values, both are at the one hundredth level, so to see who is larger, we can nevermind the 100 and look at the numerator, 94 is clearly much larger than 49.
Construct a polynomial function with the following properties: fifth degree, 2 is a zero of multiplicity 3, -2 is the only other zero, leading coefficient is 2.
f(x)=?
Can someone help?
Answer:
[tex]f(x)=2(x-2)^{3}(x+2)^{2}[/tex]
Step-by-step explanation:
we know that
2 is a zero of multiplicity 3 of the polynomial
so
we have that
x=2 is a solution of the polynomial
A factor of the polynomial is
[tex](x-2)^{3}[/tex] ----> is elevated to the cube because is a multiplicity 3
and the other solution is x=-2
since the polynomial is fifth degree, x=-2 must have a multiplicity 2
so
the other factor of the polynomial is
[tex](x+2)^{2}[/tex] ----> is squared because is a multiplicity 2
therefore
The polynomial is equal to multiply the factors by the leading coefficient
so
[tex]f(x)=2(x-2)^{3}(x+2)^{2}[/tex]
The polynomial function based on the given properties: zeros at 2 (with multiplicity 3) and -2 (with multiplicity 1), leading coefficient of 2, is f(x) = 2(x - 2)³(x + 2).
Explanation:To construct a polynomial with given zeros and multiplicities, we need to set up a product of binomial factors based on the zeros, with each binomial factor raised to the power of its respective multiplicity. The resulting polynomial is the given function f(x).
For the given properties, the roots are 2 and -2. The root 2 has multiplicity 3 and the root -2 has multiplicity 1. Also, the leading coefficient is 2. So, we can set up the polynomial function as follows:
f(x) = 2(x - 2)3(x + 2)
This represents a fifth degree polynomial function that has the zeros and multiplicities listed, with the leading coefficient of 2.
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(x²-2xy+y²)+(x²+2xy+y²)=?
(x²-2xy+y²)-(x²+2xy+y²)=?
Answer:
See below in bold.
Step-by-step explanation:
(x²-2xy+y²)+(x²+2xy+y²)
= x²-2xy+y²+ x²+2xy+y²
= 2x² + 4xy + 2y².
(x²-2xy+y²)-(x²+2xy+y²)
= x²- 2xy + y²- x² - 2xy - y²
= -4xy.
Answer:
2
Step-by-step explanation:
If the constant of proportionality is k then,
y=kx
What number do we multiply by x to get y?
The constant of proportionality is 2.
Find the value of x if A, B, and C are collinear points and B is between A and C.
AB=5x−1,BC=14,AC=25−x
Answer:
x = 2
Step-by-step explanation:
Collinear means that the points A, B and C all lie in a straight line, hence
AB + BC = AC, substitute values
5x - 1 + 14 = 25 - x
5x + 13 = 25 - x ( add x to both sides )
6x + 13 = 25 ( subtract 13 from both sides )
6x = 12 ( divide both sides by 6 )
x = 2
The value of x is:
[tex]x=2[/tex]
Step-by-step explanation:Three points are said to be collinear if they lie along a straight line.
Also, it is given that:
Here A, B, and C are collinear points and B is between A and C.
This means that:
[tex]AB+BC=AC-----------(1)[/tex]
Also we are given:
[tex]AB=5x-1,\ BC=14,\ AC=25-x[/tex]
Using property (1) we have:
[tex]5x-1+14=25-x\\\\i.e.\\\\5x+13=25-x[/tex]
Now on adding x on both the side of the equation we have:
[tex]5x+13+x=25\\\\i.e.\\\\5x+x+13=25\\\\i.e.\\\\6x+13=25[/tex]
Now on subtracting 13 on both the sides of the equation we have:
[tex]6x=25-13\\\\i.e.\\\\6x=12\\\\i.e.\\\\x=\dfrac{12}{6}\\\\i.e.\\\\x=2[/tex]
Find the volume of the cone. Round your answer to the nearest hundredth.
A.
32.05 cubic feet
B.
38.39 cubic feet
C.
56.54 cubic feet
D.
100.69 cubic feet
Answer:
V=100.63 cubic feet
Step-by-step explanation:
The formula for the volume of the cube is given as
[tex]V=\frac{1}{3}\pi r^{2}h[/tex]
Where r=4.3 ft
And h is height = 5.2 ft
Now we put the value of h and r in the formula for volume
[tex]V=\frac{1}{3}\times \pi \times 4.3^{2} \times 5.2[/tex]
[tex]V=\frac{1}{3}\times \pi \times 96.148[/tex]
[tex]V=\frac{1}{3}\times 3.14 \times 96.148[/tex]
[tex]V=\frac{1}{3}\times 301.904[/tex]
V=100.63 cubic feet
To compute the volume of a cone, one needs to use the formula 1/3πr²h, where 'r' represents the radius of the base and 'h' represents the height of the cone. The specific dimensions of the cone are needed to provide a concrete answer. The given options can't be validated without these details.
Explanation:Without specific parameters such as the radius and height of the cone, we cannot directly calculate the volume of the cone. However, the general formula for finding the volume of a cone is 1/3πr²h, where r represents the radius of the base and h represents the height of the cone. This formula is derived from the geometric principles of a cone's structure. Once the values of r and h are known, they can be substituted into this formula to compute the volume. The answer would then be rounded to the nearest hundredth if necessary. Unfortunately, the choices provided A.32.05 cubic feet, B.38.39 cubic feet, C.56.54 cubic feet, D.100.69 cubic feet aren't helpful without knowledge of the specific cone dimensions.
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What polynomial is equivalent to (x-4)(3x^2-x+3)?
Answer:
3x³ - 13x² + 7x - 12
Step-by-step explanation:
Each term in the second factor is multiplied by each term in the first factor, that is
x(3x² - x + 3) - 4(3x² - x + 3) ← distribute both parenthesis
= 3x³ - x² + 3x - 12x² + 4x - 12 ← collect like terms
= 3x³ - 13x² + 7x - 12
What equation is the inverse of y = 7x2 – 10?
Which one of the numbers does not belong in the following series: 100-50-52-26-28-12-16-8-10
Answer:
The 12 ( after 28) should be 14.
This 12 does not belong to the series.
Step-by-step explanation:
After every 2 numbers, 2 is added to the last number, so we have 100-50 + 2 = 52 - 26, and the second of the paired numbers is 1/2 of the first.
So after 28 the numbers should be 14 - 16 - 8 - 10. The 12 does not belong.
Roopesh has $24 dollars to spend on a birthday gift. The store where he is shopping has a sale offering $5 off the regular price, r, of any item. Write an inequality that can be used to determine the regular price of an item in the store that Roopesh can afford. (Assume there is no tax.)
What is the unknown?
Which expression can represent the sale price?
Which comparison could be used?
Which inequality represents the situation?
Answer:
r ≤ 29, r-5, The sale price can be compared with the regular price, r-5 ≤ 24
Step-by-step explanation:
Amount to spend = $24Regular price = rSale = $5Sale Price = r-5The regular price will be at most $5 more than the amount Roopesh has to spend.
The sale price will be $24 or less than that for Roopesh to afford.
Inequality for regular price :
r-5 ≤ 24
r ≤ 29
Therefore, the product Roopesh can afford is $29 or less than that.
What is the unknown? r ≤ 29Which expression can represent the sale price? Sale price = r-5 (mentioned above)Which comparison could be used? The sale price can be compared with the regular priceWhich inequality represents the situation? r-5 ≤ 24!!
Create a mapping diagram of the relation. Define the domain and range. Tell whether the relation is a function. For both.
ANSWER
For the first relation the ordered pairs are:(-2,-5),(-2,3),(1,-1),(2,3),(6,2)The domain refers to set of x-values of the relation.Domain: {-2,1,2,6}Range {-5,-1,2,3}Range refers to the set of all y-values of the relation.This relation is not a function because -2 alone has two different y-coordinates which are -5 and 3.For the second relation, the ordered pairs are: (-5,-4), (-3,-2), (-2,1),(0,2),(2,1),(3,0)Domain: {-5,-3,-2,1,0,2,3}Range:{-4,-2,0,1,2}This relation is a function because no x-value maps on to more than one y-value.For a mapping diagram, the set of all the x-coordinates form the domain and the corresponding y-coordinates are in the RangeSee attachment for the mapping diagram s.
9. Which of the following do you need to know to determine the surface area and volume of a sphere?
A. The radius of the sphere
B. The eccentricity of the sphere
C. The circumference of a great circle on the sphere
D. The radius and eccentricity of the sphere
Answer:
A: radius of the sphere
Step-by-step explanation:
The formula for surface area is A = 4πr^2
With r being the radius and A the surface area.
For volume it is
V= (4/3)πr^3
to determine the surface area and volume of sphere A: the radius of the sphere is required.
The formula for surface area is A = 4πr^2
With r being the radius and A the surface area.
For volume it is
V= (4/3)πr^3
How do you find the radius of the sphere?
The radius is half the diameter, so we use the equation r = D / 2. This is the same method used to calculate the radius from the diameter of a circle. If you have a sphere with a diameter of 16 cm, divide 16/2 to find the radius to make it 8 cm. If the diameter is 42, the radius is 21.
A sphere is defined as a set of all points in distant 3D Euclidean space. ("Radius") From a specific point ("center"). Twice the radius is called the diameter, and the pair of points on the sphere on the opposite side of the diameter is called the antipodes.
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