Answers
Option d) [tex]y= 30.5(0.7)^x[/tex] is the function that best models the number of game systems sold in millions x years since 2015.
Describe Function?In mathematics, a function is a rule that associates each element in one set (called the domain) with a unique element in another set (called the range). The rule specifies how the input values (the elements of the domain) are transformed into output values (the elements of the range).
A function can be represented using various notations, such as f(x), where f is the name of the function and x is the input value, or y = f(x), where y is the output value and x is the input value. The function can be defined explicitly, as in[tex]f(x) = x^2,[/tex] or implicitly, as in the equation of a circle, [tex]x^2 + y^2 = r^2[/tex], where y is a function of x.
To determine which function best models the number of game systems sold, we need to observe the trend in the data.
We can see that the number of game systems sold is decreasing as time goes on, which means the function should be decreasing as well.
Option a) [tex]y=21.35(0.7)^x[/tex] is an exponential function with a base less than 1, which means it would also be decreasing. However, it starts with a higher initial value than the data suggests.
Option b) [tex]y= 30.5(21.35)^x[/tex] is an exponential function with a base greater than 1, which means it would be increasing. This function does not match the trend in the data.
Option c) [tex]y= 30.5(1.3)^x[/tex] is an exponential function with a base greater than 1, which means it would be increasing. This function also does not match the trend in the data.
Option d) [tex]y= 30.5(0.7)^x[/tex]is an exponential function with a base less than 1, which means it would be decreasing. Additionally, this function passes through all three data points, and it has a starting value that matches the first data point. Therefore, option d) is the function that best models the number of game systems sold in millions x years since 2015.
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Related Questions
% of $52 = $39 ?
Complete the following statement. Write your answer as a decimal or whole number.
Answers
Answer:
75%
Step-by-step explanation:
If you have a calculator, you can divide 39/52. If not,
39/52 = x/100
52x = 3900
x = 75
75/100 = 75%
What is another way to make 2.98?
Choose 1 answer:
B
1 one +8 tenths +18 hundredths
1 one 19 tenths 8 hundredths
1 one +10 tenths 8 hundredths
Answers
Answer:
Below
Step-by-step explanation:
1 + 19/10 + 8/100 = 1 + 1.9 + .08 = 2.98
These tables represent the relationships between x and y for two different sets of data. Which statements correctly describe the relationships between x and y for each table? Table A represents a multiplicative relationship because y is 2.5 times x, O and Table B represents an additive relationship because y is 2 more than O X. Table A represents an additive relationship because y is 1.5 more Othan x, and Table B represents a multiplicative relationship because y is 3 times x. Both data sets represent multiplicative relationships. In Table A, y is 2.5 times x, and in Table B, y is 3 times X. Both tables represent additive relationships. In Table A, y is 1.5 more than x, and in Table B, y is 2 more than x.
Answers
Answer:
Both data sets represent multiplicative relationships. In Table A, y is 2.5 times x, and in Table B, y is 3 times X
Step-by-step explanation:
Self-explanatory
Every value of y in Table A is 2.5 times x value
and
every value of y in table B is 3 times x value
you shuffle a standard deck of cards, then draw four cards.(a) what is the probability all four are the same suit? (b) what is the probability all four are red? (c) what is the probability each has a different suit?
Answers
a) Probability that all four are the same suit = 0.0106 b) Probability that all four are red =0.055 c) Probability each has a different suit = 0.105
Total number of cards =52
No. of cards for each suit =13
Total types of four suit =4 (heart, spades, diamonds, clubs)
Total numbers of ways = [tex]^{52}C_4[/tex] =270,725 ways
a) number of ways choosing four cards of the same suit
= [tex]^{13}C_4+^{13}C_4+^{13}C_4+^{13}C_4[/tex]
= [tex]4 \times ^{13}C_4\\[/tex]
= [tex]4 \times \frac{13!}{4!(13-4)!}[/tex]
=2860 ways
Probability that all four are the same suit is 2860/270,725 = 0.0106
b) Number of ways all four cards are red
=[tex]^{26}C_4[/tex]
= 4,950 ways
Probability that all four are red = 4950/270,725 =0.055
c) Number of ways each card has a different suit
=[tex]^{13}C_1\times^{13}C_1\times^{13}C_1\times^{13}C_1[/tex]
= 28,561 ways
Probability each has a different suit is 28561/270725 = 0.105
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Amir notices that 3 out of every 50 cars that pass by his window
are green. If he observes 400 cars, what is the best estimate for how
many of them will be green?
Answers
Answer:
24 cars are green
Step-by-step explanation:
We know
Amir notices that 3 out of every 50 cars that pass by his window are green.
So, the ratio is 3:47
To get from 50 to 400, we time 8.
If he observes 400 cars, what is the best estimate of how many will be green?
We take
3 x 8 = 24 cars are green
So, there will be 24 cars that are green.
Suppose that a motorboat is moving at 83 ft/s when its motor suddenly quits, and that 1 s later the boat has slowed to 23 ft/s. Assume that the resistance it encounters while coasting is proportional to the square of its velocity so that dv/dt =-kv^2 where k > 0. How far will the boat coast in the first 2 minutes after its motor quits?
Answers
The boat travels a distance of [tex](1/2k) ln(61/42)^2[/tex] in the first 2 minutes after its motor quits.
We can solve this problem using separation of variables. The differential equation that models the velocity of the boat is:
[tex]dv/dt = -kv^2[/tex]
To do this, we first need to separate the variables and integrate both sides:
[tex]1/v^2 dv = -k dt[/tex]
Integrating both sides, we get:
-1/v = kt + C
where C is the constant of integration. To find C, we can use the initial condition that the boat is moving at 83 ft/s when the motor quits:
-1/83 = k(1) + C
C = -1/83 + k
Now we can substitute C back into our equation:
-1/v = kt - 1/83 + k
Solving for v, we get:
v = 1 / (k(t - 1/83 + 1))
Now we can integrate v over the time interval [1, 121] to find the distance traveled by the boat:
d = ∫[1,121] v dt
Substituting v into the integral, we get:
d = ∫[1,121] 1 / (k(t - 1/83 + 1)) dt
We can simplify the integral by using the substitution u = t - 1/83 + 1:
d = ∫[84/83, 122/83] 1 / (ku) du
Now we can integrate this expression to get:
d = ln(u) / k |[84/83, 122/83]
d = ln(122/83) / k - ln(84/83) / k
d = (1/k) ln(122/83) - (1/k) ln(84/83)
We can simplify this expression using the fact that C = -1/83 + k:
d = (1/k) ln(122/83 / 84/83)
d = (1/k) ln(61/42)
Finally, we can plug in the initial condition k > 0 to get the distance traveled by the boat:
d = [tex](1/k) ln(61/42) = (1/2k) ln(61/42)^2[/tex]
d = [tex](1/2k) ln(61/42)^2[/tex]
Since we are not given the value of k, we cannot compute the exact numerical value of the distance traveled.
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с A F E 2x In the diagram above JED= 27°." 1) Calallate I G B солав, angle angle EG B
Answers
Angle A is 27 degrees, angle B is 75 degrees then the angle C is 78 degrees.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Let the triangle be ABC.
The angle A is 27 degrees.
The angle B is 75 degrees,
We need to find the angle of C
From Angle sum property the sum of three angles is 180 degrees.
∠A+∠B+∠C=180
27+75+∠C=180
102+∠C=180
∠C=78 degrees.
Hence, angle A is 27 degrees, angle B is 75 degrees then the angle C is 78 degrees.
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Complete Question below:
In Triangle ABC, angle A is 27 degrees, angle B is 75 degrees then the angle C?.
Enter the missing numbers in the boxes to complete the table of equivalent ratios.
Answers
Answer:
Top box is 2
Middle box is 10
Bottom box is 18
Step-by-step explanation:
[tex]\frac{6}{9}[/tex] = [tex]\frac{x}{3}[/tex]
9 ÷ 3 = 3
6 ÷ 3 = 2
x = 2
[tex]\frac{6}{9}[/tex] = [tex]\frac{x}{15}[/tex]
9 x [tex]\frac{15}{9}[/tex] = 15
6 x [tex]\frac{15}{9}[/tex] = 10
x = 10
[tex]\frac{6}{9}[/tex] = [tex]\frac{12}{x}[/tex]
6 x 2 = 12
9 x 2 = 18
x = 18
Rewrite the equation in Ax+By = C form.
Use integers for A, B, and C.
y-2=-5(x-3)
Answers
Answer:
5x + y = 17
Step-by-step explanation:
y -2 = -5(x -3)
y-2 = -5x + 15 Add 5x to both sides
5x + y - 2 = 5x - 5x + 15
5x + y - 2 = 15 Add 2 to both sides
5x + y + 2 - 2 = 15 + 2
5x + y = 17
7 plums cost 63p
5 limes cost 60p
work out the cost of 1 plum
Answers
The cost of one plum in pence is 9p. The cost of 1 lime in pence is 12p.
Comparing the cost plum is cheaper.
The cost of 1 plum can be found by dividing the total cost of 7 plums by 7:
63 p / 7 = 9 p
Therefore, the cost of 1 plum is 9 p.
The cost of 1 lime can be found by dividing the total cost of 5 limes by 5:
60 p / 5 = 12 p
Therefore, the cost of 1 lime is 12 p.
Comparing the costs of 1 plum and 1 lime, we see that 1 plum costs 9 p and 1 lime costs 12 p. Therefore, the plum is cheaper per item.
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____The given question is incomplete, the complete question is given below:
A grocery shop sells plums and limes. 7 plums cost 63 p. 5 limes cost 60p a) Work out the cost of 1 plum, in pence (p).
b) Work out the cost of 1 lime, in pence (p).
c) Which type of fruit is cheaper per item?
How many 200 mL glasses can be filled using a 2.2 L bottle of cola?
Answers
Answer:
11 glasses
Step-by-step explanation:
There are 200 ml glasses and we have 2.21 liter of bottels. So first of all covert liter into ml so we get 2210 ml of coca cola.now divide 2210 by 200 so we get 11 glasses
With the information given, can you prove
that this quadrilateral is a parallelogram?
Yes
No
Answers
We can see here that with the information given, one can prove that this quadrilateral is a parallelogram. Thus, it is yes>
What is a quadrilateral?A polygon with four sides and four vertices (corners) is called a quadrilateral. Its internal angles add up to 360 degrees.
Squares, rectangles, parallelograms, trapezoids, and rhombuses are all examples of quadrilaterals.
We can see that looking at the quadrilateral, we can deduce that it is parallelogram. This is because the opposites sides are equal. Also, their opposite angles are equal.
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how many sides does a polygon have if the sum of the interior angles is 3960
Answers
A polygon with a sum of interior angles of 3960 has 22 sides.
The sum of the interior angles of a polygon can be calculated using the formula:
(n-2) * 180
where n is the number of sides of the polygon. This formula is derived from the fact that the total degree measure of a polygon is equal to the sum of the degree measures of its interior angles. In a polygon with n sides, there are n angles, each measuring 180 degrees. So the total degree measure of a polygon with n sides is n * 180.
Now, if we subtract the degree measures of two angles, we are left with the sum of the degree measures of the remaining n-2 angles. This is why the formula for the sum of the interior angles of a polygon is given as (n-2) * 180.
To find the number of sides of a polygon given its sum of interior angles, we can rearrange the formula as follows:
n = (Sum of interior angles / 180) + 2
So, if the sum of the interior angles is given as 3960, we can plug that into the formula:
n = (3960 / 180) + 2
n = 22
Therefore, a polygon with a sum of interior angles of 3960 has 22 sides.
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How many sides does a polygon have if the sum of the interior angles is 3960?
Factorise 3y²+12y ‼️‼️‼️
Answers
Answer:
3y(y + 4)
Explanation:
[tex]3y^{2} + 12y\\3(y^{2} + 4y)\\3y(y + 4)\\[/tex]
903-814 with solution
Answers
Answer:
89
Step-by-step explanation:
903 - 814 =
= (900 + 3) - (800 + 14) =
= 900 + 3 - 800 - 14 = 100 - 11 =
= 89
You are using a recipe to bake some
cookies. The recipe calls for the following
ingredients:
3 3/4 cups flour
1 1/4 cups brown sugar
2 eggs
1/4 teaspoon salt
1/3 teaspoon baking soda
1 1/4 butter
1 1/2 cups white sugar
You've decided to only make 1/2 a batch.
How much of each ingredient do you need?
Answers
The required measurement of the ingredient has been shown below for half a batch of cookies.
What is arithmetic?In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
Here,
When making 1/2 a batch of the cookie recipe, you will need to halve the amount of each ingredient.
Here is the list of ingredients for half a batch:
1 7/8 cups flour
5/8 cup brown sugar
1 egg
1/8 teaspoon salt
1/6 teaspoon baking soda
5/8 cup butter
3/4 cup white sugar
Thus, the required measurement of the ingredient has been shown above for half a batch of cookies.
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PLS HELP!!! I NEED IT FOR LESS THAN 20 MINUTES
Answers
Answer:
51 stamps
Step-by-step explanation:
since salman's amount is going from 5 to 45 its being multiplied by nine. to keep the ratio true, you need to multiply the other two numbers by 9 too. Nathan then has 12 stamps and Gordon has 63. 63-12=51
A pyrotechnician plans for two fireworks
to explode together at the same height In the air. They travel
at
speeds shown below. Firework B is launched 0.25 s before Firework A. How many seconds after
B Firework B launches will both fireworks explode?
Firework A
Firework B
340 ft/s
260 ft/s
Answers
The mentioned scenario can be calculated using the distance equation, the number of seconds in which explosion would occur is 1.125 seconds.
What is the relationship between time, speed and distance ?The distance covered by the object is equal to the product of the speed of object and the time required for it.
Distance = Time x speed
Firework A :
D = 360xt - - - (1)
Firework B:
D = 280x(0.25) + 280xt
D= 70 + 280xt - - - (2)
Equate equation (1) and (2) :
360t = 280t + 70
Collect like terms
360t - 280t = 70
80t = 70
t = 70/80
t = 0.875 seconds
0.875 + 0.25 = 1.125 seconds
Hence, the fireworks will explode after 1.125 seconds of launching Firework B.
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What is 2 1/2 doubled
Answers
Answer:
5
Step-by-step explanation:
2 1/2
+ 2 1/2
1/2 and 1/2 makes a whole which is 1
so if you have 4 and and a whole which is 5
They can also be turned into decimals. 1/2 as a decimal is .5
so 2.5 plus 2.5 = 5
C. a third bond is worth $100 and grows in value by 4 percent each year, but the interest is applied continuously, at every moment. The value of this bond after years is given by 100-Order the bonds from slowest growing to fastest growing. Explain how you know
Answers
We can order the bonds from slowest-growing to fastest-growing as:
First bond: fixed growth rate of $50 per year
Third bond: growth rate of 4% per year, compounded continuously
Second bond: growth rate of 6% per year, compounded annually
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
To order the bonds from slowest growing to fastest growing, we need to compare their growth rates.
The first bond grows at a fixed rate of $50 per year, regardless of how long it is held.
So its growth rate is constant and does not change with time.
The second bond is worth $500 and grows at a fixed annual rate of 6%, so its value after one year will be:
Value after one year
= $500 + 0.06 x $500
= $530
After two years, its value will be:
Value after two years.
= $530 + 0.06 x $530
= $561.80
We can see that the second bond's growth rate is increasing over time since the increase in value each year is calculated as a percentage of the new value.
The third bond is worth $100 and grows at an annual rate of 4% that is applied continuously.
The formula for the value of a continuously compounded bond after t years = $100 x e^(0.04t)
where e is the mathematical constant approximately equal to 2.718.
After one year,
The value of the third bond.
= $100 x e^(0.04 x 1) = $104.08
After two years,
Value after two years
= $100 x e^(0.04 x 2)
= $108.24
We can see that the growth rate of the third bond is also increasing over time because the interest is being compounded continuously.
Now,
We can order the bonds from slowest-growing to fastest-growing as:
First bond: fixed growth rate of $50 per year
Third bond: growth rate of 4% per year, compounded continuously
Second bond: growth rate of 6% per year, compounded annually
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Can you please help me with 11, 12,13 and 14 please it will mean a lot
Answers
first one is a
Step-by-step explanation:
A car traveled at an average speed of 100 KM per hour for 5 hours and consumed fuel at a rate
of 13 KM per liter. What is the approximate cost of 5-hour trip if the price of fuel is R78 per liter?
Answers
The approximate cost of 5-hour trip if the price of fuel is R78 per liter by finding the average speed is R3000.68.
To find the the total distance travelled by the car in 5 hours at an average speed of 100 km/h is:
Distance = Speed x Time
Distance = 100 km/h x 5 h
Distance = 500 km
The total amount of fuel consumed during the trip is:
Fuel consumed = Distance / Fuel efficiency
Fuel consumed = 500 km / 13 km/l
Fuel consumed = 38.46 liters (rounded to two decimal places)
The cost of the fuel consumed during the trip is:
Cost of fuel = Fuel consumed x Price per liter
Cost of fuel = 38.46 liters x R78/liter
Cost of fuel = R3000.68 (rounded to two decimal places)
Therefore, the approximate cost of the 5-hour trip is R3000.68, assuming that the only cost incurred is for the fuel consumed during the trip.
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How do you factor with a leading coefficient greater than 1?
Answers
Factoring polynomials with a leading coefficient greater than 1 is to use the factoring by grouping technique or quadratic formula.
Factoring a polynomial with a leading coefficient greater than 1 can be more challenging than factoring a polynomial with a leading coefficient of 1. However, there are several methods and techniques that can be used to factor such polynomials.
One common method for factoring polynomials with a leading coefficient greater than 1 is to use the factoring by grouping technique. This involves grouping the terms of the polynomial in pairs and factoring out the greatest common factor of each pair.
The resulting expressions can then be further factored or combined to obtain the final factorization of the polynomial.
Another method for factoring polynomials with a leading coefficient greater than 1 is to use the quadratic formula, which can be used to find the roots of a quadratic polynomial. Once the roots are found, the polynomial can be factored as a product of linear factors.
In some cases, it may also be helpful to use a combination of these techniques, along with other algebraic manipulations, such as completing the square or long division.
Overall, factoring a polynomial with a leading coefficient greater than 1 may require more patience and creativity than factoring a polynomial with a leading coefficient of 1, but with practice and persistence, it is possible to develop the skills and techniques needed to factor such polynomials efficiently and accurately.
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HELP you will get brainlie
Answers
Answer:
A. 112 units^2
Step-by-step explanation:
64 + 32 + 12 + 4 = 112
An expression is given.
Which expression is equivalent to the given expression?
A
−13x+12-13x+12−13x+12
B
10x2−7x−1210x^2-7x-1210x
2
−7x−12
C
10x2−23x+1210x^2-23x+1210x
2
−23x+12
D
7x2−23x−77x^2-23x-77x
2
−23x−7
Answers
The equation -13x+12-(-13x+12)-13x+12 = -13x+12 is equivalent to the given expression that is -13x+12.
10x^2 - 23x + 12 = (5x - 3)(2x - 4) = 0
So the solutions to the equation are x = 3/5 or x = 2.
Therefore, this expression is not equivalent to -23x + 12 for all values of x.
10x^2 - 7x - 12 = 0 can be factored as (2x - 3)(5x + 4) = 0.
So the solutions to the equation are x = 3/2 or x = -4/5.
Therefore, this expression is not equivalent to -7x - 12 for all values of x.
-13x+12-(-13x+12)-13x+12 = -13x+12
-13x+12 = -13x+12
This expression is equivalent to -13x+12 .
7x^2 - 23x - 77 = (7x + 11)(x - 7) = 0
So the solutions to the equation are x = -11/7 or x = 7.
Therefore, this expression is not equivalent to -23x - 7 for all value x.
The given expressions of each case are not equivalent to the given equations for all values of x, except −13x+12-(-13x+12)-13x+12 = -13x+12 which is equivalent to -13x+12 .
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______The given question is incorrect, the correct question is given below:
An expression is given on equation
Which expression is equivalent to the given expression of each case
?
A
10x2−23x+1210x^2-23x+1210x = −23x+12
B
10x2−7x−1210x^2-7x-1210x = −7x−12
C
−13x+12-(-13x+12)-13x+12 = -13x+12
D
7x2−23x−77x^2-23x-77x = −23x−7
1) Write the equation of the line passing through point P with slope m, if
a) P(1,4) and m = 3
c) P (3,0) and m = −1
b) P(-1,-2) and m = 4
d) P(0,0) and m = -5
Answers
Answer:
a) y - 4 =3(x - 1)
b) y + 2 = 4(x+ 1)
c) y = -(x - 3)
d) y = -5x
Step-by-step explanation:
You did not say which form, so I put them in the point-slope form of a line that follows the pattern:
y - [tex]y_{1}[/tex] = m( x - [tex]x_{1}[/tex])
Answer:
see explanation
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
(a)
given m = 3 , then
y = 3x + c ← is the partial equation
to find c substitute (1, 4 ) into the partial equation
4 = 3(1) + c = 3 + c ( subtract 3 from both sides )
1 = c
y = 3x + 1 ← equation of line
(b)
given m = 4 , then
y = 4x + c ← is the partial equation
to find c substitute (- 1, - 2 ) into the partial equation
- 2 = 4(- 1) + c = - 4 + c ( add 4 to both sides )
2 = c
y = 4x + 2 ← equation of line
(c)
given m = - 1 , then
y = - x + c ← is the partial equation
to find c substitute (3, 0 ) into the partial equation
0 = - 3 + c ( add 3 to both sides )
3 = c
y = - x + 3 ← equation of line
(d)
given m = - 5 , then
y = - 5x + c ← is the partial equation
to find c substitute (0, 0 ) into the partial equation
0 = - 5(0) + c = 0 + c ⇒ c = 0
y = - 5x ← equation of line
Solve: s=4+sqrrt s+2
s = 2
s = 7
s = 2 or s = 7
no real solution
Answers
There is no real solution to the given equation s = 4 + sqrt(s+2) with value of s = 2, s = 7, s = 2 or s = 7.
To solve the equation:
s = 4 + sqrt(s+2)
We can start by isolating the square root term on one side:
s - 4 = sqrt(s+2)
Then, we can square both sides to eliminate the square root:
(s - 4)^2 = s + 2
Expanding the left side:
s^2 - 8s + 16 = s + 2
Bringing all terms to one side:
s^2 - 9s + 14 = 0
We can solve for s using the quadratic formula:
s = (9 ± sqrt(9^2 - 4(1)(14))) / 2(1)
s = (9 ± sqrt(49)) / 2
s = (9 ± 7) / 2
So the two possible solutions are:
s = 8/2 = 4
s = 2/2 = 1
However, we need to check if these solutions satisfy the original equation.
If we plug s=4 into the equation, we get:
4 = 4 + sqrt(4+2)
4 = 4 + sqrt(6)
This is not true, since the right-hand side is greater than the left-hand side.
If we plug s=1 into the equation, we get:
1 = 4 + sqrt(1+2)
1 = 4 + sqrt(3)
This is also not true.
Therefore, there is no real solution to the equation s = 4 + sqrt(s+2).
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Answer:
B
Step-by-step explanation:
Given that the roots of the equation x^2-8x+k=0 satisfy 3x+4x=29, find k
Answers
a = 1st zero or root of the quadratic
b = 2nd zero or root of the quadratic
[tex]x^2-8x+k=0\implies (x-a)(x-b)=0\implies x= \begin{cases} a\\ b \end{cases} \\\\[-0.35em] ~\dotfill\\\\ -ax-bx=-8x\implies -a-b=-8\implies -b=a-8\implies b=8-a \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that}}{3a+4b=29}\qquad \implies \qquad \stackrel{\textit{substituting from above}}{3a+4(8-a)~~ = ~~29}\implies 3a+32-4a=29 \\\\\\ -a+32=29\implies 32=a+29\implies \boxed{3=a}\hspace{5em}\stackrel{ 8~~ - ~~3 }{\boxed{b=5}}[/tex]
[tex]~\dotfill\\\\ (x-3)(x-5)=0\implies x^2-8x+\stackrel{ \textit{\LARGE k} }{15}=0[/tex]
HELP PLS! ITS DUE IN 30 MIN!!!!!!!
The altitude of an airplane coming in for a landing is represented by the equation shown below, where y represents the altitude, in feet, of the airplane and x represents the number of minutes the plane has been descending:
y = -10x + 300
Part A:
Create a table for the values when x = 0, 5, 8, 10, 30.
Include worked-out equations used to identify the values within the table.
Part B:
Identify the altitude after 5 minutes and after 30 minutes. Use 1-2 sentences to explain the altitude at these two times and describe what is happening to the airplane at these time intervals.
The altitude of an airplane coming in for a landing is represented by the equation shown below, where y represents the altitude, in feet, of the airplane and x represents the number of minutes the plane has been descending:
y = -10x + 300
Part A:
Create a table for the values when x = 0, 5, 8, 10, 30.
Include worked-out equations used to identify the values within the table.
Part B:
Identify the altitude after 5 minutes and after 30 minutes. Use 1-2 sentences to explain the altitude at these two times and describe what is happening to the airplane at these time intervals.
Answers
The table to explain the equation will be:
x (minutes) y (altitude, in feet) Worked-out equation
0 300 -10x + 300 = 300
5 250 -10x + 300 = 250
8 220 -10x + 300 = 220
10 200 -10x + 300 = 200
30 0 -10x + 300 = -0
What is an equation?An equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario
I used the equation y = -10x + 300 to find the altitude of the airplane for each x value.
The altitude after 5 minutes is 250 feet and 0 after 30 minutes.
Learn more about equations on:
https://brainly.com/question/2972832
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Calculate the area of a four-sided regular pyramid if its base edge is a=10cm, and its side edge is b=12cm.
Answers
The area of a four-sided regular pyramid, given the base edge and the side edge is 340 cm ² .
How to find the area ?The area of a four-sided regular pyramid can be found by the formula :
= Area of base + 1 / 2 x perimeter of base x side edge
Area of base :
= 10 x 10
= 100 cm ²
Perimeter of base ;
= 10 + 10 + 10 + 10
= 40 cm
The area of the four-sided regular pyramid is;
= 100 + ( 1 / 2 x 40 x 12 )
= 340 cm ²
Find out more on the area of a pyramid at https://brainly.com/question/22744289
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