Answer:
A.) P(t) = 130t +3330
B.) P(16) = 5410
Step-by-step explanation:
Given the ordered pairs (t, P(t)) = (2, 3590) and (9, 4500), you want a linear model that describes the relation. You also want the value of P(16).
A.) Linear modelWe can write the formula for P(t) starting with the point-slope equation for P in terms of t. To do that, we need the slope:
m = (P2 -P1)/(t2 -t1)
m = (4500 -3590)/(9 -2) = 910/7 = 130
The point-slope equation will be ...
P -P1 = m(t -t1)
P -3590 = 130(t -2)
Solving for P, we find ...
P = 130t -260 +3590 . . . . . eliminate parentheses, add 3590
P(t) = 130t +3330
B.) PredictionThe value of P(16) will be ...
P(16) = 130(16) +3330 = 2080 +3330 = 5410
The moose population is predicted to be 5410 in 2006.
__
Additional comment
The value of t is years since 1990, so the relevant values are ...
1992: t = 1992 -1990 = 2
1999: t = 1999 -1990 = 9
2006: t = 2006 -1990 = 16
Values of moose population by linear model A.) P(t) = 130t +3330 B.) P(16) = 5410
What does the term "linear model" mean?
In a linear model, the terms are added rather than multiplied, divided, or provided as a non-algebraic function, as has been the case thus far in this section. A linear model is not just a straight line or its higher dimensional equivalent.Given the ordered pairs (t, P(t)) = (2, 3590) and (9, 4500), you want a linear model that describes the relation. You also want the value of P(16).
A.) Linear model
We can write the formula for P(t) starting with the point-slope equation for P in terms of t. To do that, we need the slope:
m = (P2 -P1)/(t2 -t1)
m = (4500 -3590)/(9 -2) = 910/7 = 130
The point-slope equation will be
P -P1 = m(t -t1)
P -3590 = 130(t -2)
Solving for P, we find
P = 130t -260 +3590 . . . . . eliminate parentheses, add 3590
P(t) = 130t +3330
B.) Prediction
The value of P(16) will be
P(16) = 130(16) +3330 = 2080 +3330 = 5410
The moose population is predicted to be 5410 in 2006.
(B) The value of t is years since 1990, so the relevant values are
1992: t = 1992 -1990 = 2
1999: t = 1999 -1990 = 9
2006: t = 2006 -1990 = 16
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53.93 rounded to the nearest whole number
Answer:
54
Step-by-step explanation:
A frame around a rectangular family portrait has a perimeter of 106 inches. The length of the frame is 10 inches less than twice the width. Find the length and width of the frame.
Taking into account definition of perimeter and system of equations, the length and width of the frame is 32 inches and 21 inches respectively.
Definition of perimeterThe perimeter of a two-dimensional figure is the distance around the figure. That is, the perimeter of a flat geometric figure is called the length of its contour.
So, the perimeter is the measurement obtained as a result of the sum of the sides of a flat geometric figure. So to calculate the perimeter of a figure it is necessary to know two basic variables:
The number of sides of the figure.The length of each of those sides.Perimeter of a rectangleA rectangle is a flat geometric figure with four sides, of which two sides that are opposite parallel to each other have the same length and the remaining two have another length. The expression to calculate the perimeter of a rectangle is:
Perimeter= 2×(length + width)
System of linear equationsA system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.
Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied.
Length and width of the frameIn this case, a system of linear equations must be proposed taking into account that:
"L" is the length of the frame."W" is the width of the frame.You know that:
The frame around a rectangular family portrait has a perimeter of 106 inches. The length of the frame is 10 inches less than twice the width.So, the system of equations to be solved is
[tex]\left \{ {{2x(L+W)=106} \atop {L=2xW-10}} \right.[/tex]
From the several methods to solve a system of equations, it is decided to solve it using the substitution method, which consists of clearing one of the two variables in one of the equations of the system and substituting its value in the other equation.
In this case, substituting the second equation in the first one you get:
2×(2×W - 10 + W)=106
Solving:
2×(3×W - 10)=106
2×3×W - 2×10=106
6×W - 20=106
6×W=106 + 20
6×W=126
W=126 ÷6
W= 21
Remembering that L= 2×W - 10, you get:
L= 2×21 - 10
Solving:
L= 32
Finally, the length and width of the frame is 32 inches and 21 inches respectively.
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9 is added to the product of 9 and a number.
The algebraic expression for the given statement is: 9x + 9.
How to Translate a Phrase into Algebraic Expression?Given the statement above, the unknown number can be represented with variable "x".
The number = x
"Product" means multiplication.
"Product of 9 and x" = 9x
If 9 is added to the "product of 9 and x", the algebraic expression would be: 9x + 9.
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The loudness in decibels dB of a sound is defined as 10 log I/I₀ , where I is the intensity of the sound in watts per square meter (W / m²) . I₀ , the intensity of a barely audible sound, is equal to 10⁻¹²W/m². Town regulations require the loudness of construction work not to exceed 100 dB . Suppose a construction team is blasting rock for a roadway. One explosion has an intensity of 1.65x10²W/m² . Is this explosion in violation of town regulations?
b. What values should you use for I and I₀?
a) The explosion does violate the town regulation
b) The values are , I = [tex]1.65 * 10^{2} W/m^{2}[/tex] and [tex]I_{0}[/tex] = [tex]10^{-12} W/m^{2}[/tex]
The values that we have been given are
L = loudness of the sound = 10log(I/[tex]I_{0}[/tex])
I = intensity of the sound in watts per square meter = [tex]1.65 * 10^{2} W/m^{2}[/tex]
[tex]I_{0}[/tex] = intensity of barely audible sound = [tex]10^{-12} W/m^{2}[/tex]
Putting the required value in the equation of the loudness we get
a) L = [tex]10*log (\frac{1.65*10^{2} }{10^{-12} } )[/tex]
L = 10*14.217 dB = 1142.17 dB
And according to the town regulation the loudness of the construction work should not exceed 100dB.
Thus the explosion is in violation of the town regulation as it exceeds 100dB.
b) The respective values of I and [tex]I_{0}[/tex] are
I = intensity of the sound in watts per square meter = [tex]1.65 * 10^{2} W/m^{2}[/tex]
= intensity of barely audible sound = [tex]10^{-12} W/m^{2}[/tex]
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When solving an equation, Bianca's first step
is shown below. Which property justifies
Bianca's first step?
Original Equation:
2(x + − 2) =
=
-4
First Step:
2x + 4 = -4
division property of equality
distributive property of
multiplication over addition
multiplication property of equality
O addition property of equality
Answer: associative property of adding
PLEASE HELP I WILL MARK BRAINLIST!!!!!! ITS A GEOMETRY QUESTION !!!
THank you for your time and help!! i appreciate it :)
The measure of ∠B round to the nearest whole number is 76°.
What is cosine?Cosine is the trigonometric function that is equal to the ratio of the side adjacent to the acute angle in a right angled triangle.
Mathematically,
Cos = Base/Hypotenuse
Now given that, a triangle ABC,
AB = 21
BC = 7
∠C = 90°
Thus, we have
hypotenuse = AB
Base = BC
Perpendicular = AC
So, for angle B
CosB = Base/Hypotenuse
⇒ CosB = BC/AB
Put the values we get,
⇒ CosB = 7/21
or,
CosB = Cos(75.53°)
⇒ B = 75.53°
Now the nearest whole number to 75.53° is 76°
Thus, we get
B = 76°
Thus, the measure of ∠B round to the nearest whole number is 76°.
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2+5(3*4)54-10+-25*19-6=
Answer:
-429
Step-by-step explanation:
Answer:
2751
Step-by-step explanation:
2+5 times 12 times 54 minus 10 minus 475 minus 6
2+3240-10-475-6=2751
What is the solution of the equation (4x+3)^2=18
Answer:
x= 0.31066017 rounded to 0.31
Step-by-step explanation:
first you take out the exponent (2) by getting the square root of 18 so the equation will be 4x+3=18squared rooted. the primary factors of 18 are 2*3 squared. so instead of 18 put the factors is.so now you will get
4x+3=3^2*2 square rooted.
then you apply the radical rule so square root each of the digits.that will simplify to 4x=3square rooted by 2 divide by 4 on both sides minus 3/4 and if you simplify it should give you the answer
The larger of two numbers is eight more than the smaller. If the sum of the two numbers is 32, what are the two numbers
The two numbers are 12 and 20
How to determine the numbers
Let the small number be x
Let the large number be y
We have that;
y = 8 + x (1)
But;
x + y = 32 (2)
Now, substitute the value of y as 8 + x in equation (2)
x + 8 + x = 32
collect like terms
2x + 8 = 32
2x = 32 - 8
2x = 24
Make 'x' the subject
x = 24/ 2
x = 12
But;
y = 8 + x
y = 8 + 12
y = 20
Thus, the two numbers are 12 and 20
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Solve each equation. If necessary, round to the nearest ten-thousandth. log 4+2 log x=6
The solution of the given equation by rounding off it to the nearest ten-thousandth is 10.0427.
What is a round-off of the digit?
In mathematics, a round-off is defined as an approximation of the given number to a fewer number of significant digits by taking into consideration some rules.
For eg: 13.58 ~ 13.6
Solving the given equation: log 4 + 2 log x = 6
We are given a logarithmic expression: log 4 + 2 log x = 6
We know that e^(log b) = b
a log b = (log b)^a
log a + log b = log (ab)
Using exponential on both sides, we have
e^(log 4 + 2 log x) = e^6
e^(log 4 + log x² ) = 403.428
e^(log 4x² ) = 403.428
4x² = 403.428
x² = 403.428 / 4
x² = 100.857
x = 10.0427
Hence, the solution of the given equation rounded off to the nearest ten-thousandth is 10.0427.
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Solve each equation.
log 4 x=2
value of x = 25
What is logarithmic equation ?In, mathematics a logarithmic equation is inverse of exponential equation. That means, we can easily convert the logarithmic equation into exponential equation and vice versa. The basic form of the logarithm function can be written as [tex]log_{a}x[/tex] .
where, a is the base of function or equation
x is the expression
Mathematically, if [tex]a^x = N[/tex] is an exponential function then, this can be converted to logarithmic function as [tex]log_aN = x[/tex].
There are many formulas that are given to us for solving several simple and complex problems based on logarithmic functions and logarithmic equations.
Some important formulas of logarithms :
[tex]log a + log b = log a.b[/tex][tex]log a - log b = log \frac{a}{b}[/tex][tex]log a^x = x loga[/tex][tex]log_aa=1[/tex][tex]log_a1=0[/tex]According to given statement,
log 4x =2
now convert this equation to exponential form
=> 4x = 10²
=> 4x = 100
=> x = 100 / 4
=> x = 25
Thus solution for this equation is x =25.
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Two times a number plus three equals one half of the number plus 30. What is the number?
Let the number be x
x=18
if you really liked my answer, be sure to rate, thanks, and award brainliest
hope this helped :)
Answer: X=18
Step-by-step explanation:
Solve by factoring. Check your answers. 3 x²-2=5 x
The factoring of the expression 3 x²-2=5 x is (x - 2) (3x +1)
By ordering the values, we get:
3x² - 5x - 2 = 0
To solve this exercise, we have to follow the rules of factoring:
1. Factor 5 from 5x:
3x² - 5x - 2 = 0
3x² + (- 6 + 1) x - 2 = 0
2. Apply the distributive b:
3x² - 6x + 1x - 2 = 0
3. Groups the first two terms and the last two terms:
(3x² - 6x) + 1x - 2 = 0
4. Factorize the greatest common denominator (GCM) of each group:
3x(x - 2) + x - 2 = 0
5. Simplify the common term (x - 2) with the distributive property:
(x - 2) (3x +1)
What is factoring?Is a technique that consist of decomposition of a factor into a product of another factor, which when multiplied together give the original number.
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rotation 90 clockwise about the origin B (- 2,) , C(-4,3), Z(-3,4), X (- 1,4)
The coordinates of the images of the points are B'(x, y) = (0, 2), C'(x, y) = (3, 4), Z'(x, y) = (4, 3) and X'(x, y) = (4, 1), respectively.
How to rotate points about the origin
In this problem we find four points set on Cartesian plane, each of which has to be transformed by using the following transformation rule about the origin:
(x', y') = (x · cos θ - y · sin θ, x · sin θ + y · cos θ)
Where:
(x, y) - Coordinates of the original point.
θ - Angle of rotation, in degrees.
If we know that B(x, y) = (- 2, 0), C(x, y) = (- 4, 3), Z(x, y) = (- 3, 4), X(x, y) = (- 1, 4) and θ = 90°, then the coordinates of the resulting point:
B'(x, y) = (- 2 · cos (- 90)° - 0 · sin (- 90°), - 2 · sin (- 90°) + 0 · cos (- 90°))
B'(x, y) = (0, 2)
C'(x, y) = (- 4 · cos (- 90°) - 3 · sin (- 90°), - 4 · sin (- 90°) + 3 · cos (- 90°))
C'(x, y) = (3, 4)
Z'(x, y) = (- 3 · cos (- 90°) - 4 · sin (- 90°), - 3 · sin (- 90°) + 4 · cos (- 90°))
Z'(x, y) = (4, 3)
X'(x, y) = (- 1 · cos (- 90°) - 4 · sin (- 90°), - 1 · sin (- 90°) + 4 · cos (- 90°))
X'(x, y) = (4, 1)
Finally, we proceed to graph the locations of the points, both original and resulting, by means of a graphing tool.
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A stack of boxes is 6/5 meters tall. Each box is 3/10 meter tall. How many boxes are in the stack
The 4 number of boxes are in the stack.
What is arithmetic?
Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.
Given:
A stack of boxes is 6/5 meters tall.
Each box is 3/10 meter tall.
According to given question we have
The number of boxes are in the stack
[tex]\frac{6/5}{3/10} \\\\=\frac{6*10}{3*5} \\\\=4[/tex]
Therefore, the 4 number of boxes are in the stack.
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Help asp 50 points
The graph represents a quadratic function write an equation of the function in standard form
Answer:
[tex]f(x)=-x^2 + 11x - 24[/tex]
Step-by-step explanation:
Well for this problem, you want to start off by writing it in factored form.
In factored form, you can represent a quadratic as: [tex]f(x)=a(x-b)(x-c)[/tex], where x=b, and x=c are zeroes of the function, since plugging them into the function makes one of the factors zero, and multiplying zero by the other factors will just give you zero.
The "a" in front of the two factors generally defines the stretch/compression of the function.
So let's start by plugging in the zeroes into the function, and then we can solve for "a" later: [tex]f(x) = a(x-3)(x-8)[/tex]
Now let's use one point on the graph, which is not a root/zero to solve for "a". It's important to not use a zero/root since if we use that point the entire thing will be zero regardless of the value of "a"
Luckily we have one point provided that is not a zero and is: (4, 4)
So let's plug it in: [tex]4=a(4-3)(4-8)\\4=a(1)(-4)\\4=-4a\\a=-1[/tex]
So now let's plug this into the factored form to get: [tex]f(x)=-(x-3)(x-8)[/tex]
using foil to multiply these two factors you get: -[x^2 -8x - 3x + 24]
Now combine like terms
-[x^2 - 11x + 24]
distribute the negative sign
-x^2 + 11x - 24
[tex] \large \bf \implies{y = { - x}^{2} + 11x - 24}[/tex]
Step-by-step explanation:Let standard form of quadratic equation be
y = ax² + bx + cIf passes through (3,0) , (8,0) and (4,4)
a(3)² + b(3) + c9a + 3b + c = 0 ... (1)a(8)² + 8b + c = 064a + 8b + c = 0 ... (2)4 = a(4)² + b(4) + c16a + 4b + c = 4 ... (3)(2) - (1)64a + 8b + c - 9a - 3b - c = 0 - 055a + 5b = 0 => 55a = -5bb = -11a ... (4)(3) - (2)16a + 4b + c - 64a - 8b - c = 4 - 0-48a - 4b = 4-48a - 4(-11a) = 4 (from 4)-48a + 44a = 4 => -4a = 4 => a = -1b = -11x(-11) = 119a + 3b + c = 09(-1) + 3(11) + c = 0-9 + 33 + c = 024 + c = 0c = 0 - 24c = -24Therefore, Standard form of quadratic equation y = -x² + 11x -24How do I solve this problem?
The function f is defined on the real numbers by f(x) = 2 + x − x2
The numeric values of the function are given as follows:
f(-3) = -2.75.f(2) = 4.f(5) = -0.75.What is the missing information?The function is missing, and is given as follows:
f(x) = 0.25x - 2, x ≠ 2.f(x) = 4, x = 2.It asks for the following numeric values:
f(-3), f(2), f(5).
How to find the numeric value of a function/expression?To find the numeric value of a function, we replace each instance of the variable by the desired value.
Hence, for this function, the numeric values are:
f(-3) = 0.25(-3) - 2 = -2.75.f(2) = 4.f(5) = 0.25(5) - 2 = 1.25 - 2 = -0.75.More can be learned about the numeric values of a function at brainly.com/question/28367050
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Highest Common Factors (HCF)
Find the HCF of these pairs of num
a. 6 and 9
Answer:
3
Step-by-step explanation:
6=2*3
9=3*3
The only common factor is 3
Use a two dimensional model and the dimensions provided to calculate the perimeter or circumference and area of each object round to the nearest 10th if necessary
The perimeter of triangle 8 is 41 feet and 3 inches while the area is around 81.42 feet².
What is surface area?The quantity of space enclosing a three-dimensional shape's exterior is its surface area.
In other meaning, if we say side square then it is an area of the square but for a cuboid, there are 6 faces so the surface area will be external to all 6 surfaces area.
The given object is a triangle with sides of 13 ft 4 in,13 ft 4 in, and 14 ft 7 in.
A perimeter is the sum of all sides of the triangle.
There fore,
Perimeter = 13 ft 4 in + 13 ft 4 in + 4 ft 7 in
⇒ 41 feet 3 inches.
Now the area is given as 1/2 × base × height.
Here base = 14 ft 7 in and height = 11 ft 2 inch
Now,
1 inch = 1/12 ft so 7 inch = 7/12 feet and 2 inches = 2/12 feet.
So,
Area = 1/2 × (14 + 7/12) × (11 + 2/12)
Area = 81.42 feet²
Hence "The perimeter of triangle 8 is 41 feet and 3 inches while the area is around 81.42 feet²".
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What is the value of the expression below when w = 9 and x = 8?
Answer:
9w7x
Submit Answer
Answer:
Step-by-step explanation:
4,536
What is the value of q − 7 if q = −17?
Answer:
-24
Step-by-step explanation:
-7 - 17 = -24.
Answer:
-24
Step-by-step explanation:
[tex]for~q - 7, q = -17\\-17-7\\=-24[/tex]
Write an equation that has two radical expressions and no real roots.
[tex]\sqrt{x}[/tex] = [tex]\sqrt{x+1}[/tex] has no real roots.
[tex]\sqrt{x}[/tex] = [tex]\sqrt{x+1}[/tex]
squaring both the sides
x = x+1
0 = 1
which is not true
hence false.
Therefore, no real roots.
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1) 0, -2, 1
What is the largest integer
Answer:
it would be 1 (im not really sure what it would be, let me know if this helps)
Step-by-step explanation:
2. Write a fraction division problem that you can use to find out how long it will take Mel to finish mowing the yard. (3 points)
The time taken for Mel to finish mowing the yard if they have 80 minutes is 53 minutes.
What is a fraction?It should be noted that this represents the number of pieces removed from the whole. The denominator of a fraction is the numerical value that comes before the brings together various.
Given that,
Michael mows = 1/3 of the yards
Mel will cut: 1 - 1/3 = 2/3
Therefore, the time taken for Mel to mow the yard will be:
= 80 × 2/3
= 53 minutes
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After Michael mows ⅓ of the yard, Write a fraction division problem that you can use to find out how long it will take Mel to finish mowing the yard if they have 80 minutes.
Given ƒ(x) = −4x − 5, find ƒ(5)
The output value of f(5) in the given function f(x) = -4x - 5 is -25
What is the output value of f(5) in the given function?A function is simply a set of ordered pairs where each first element is paired with one and only second element and also no element in either pair is without a partner.
Given the data in the question;
f(x) = -4x - 5f(5) = ?To determine the output value of f(5), replace the variable x with 5 and simplify.
f(x) = -4x - 5
f(5) = -4(5) - 5
Perform the multiplication operation to remove the parenthesis.
f(5) = -4(5) - 5
f(5) = -20 - 5
f(5) = -25
Therefore, the output value of f(5) in the given function f(x) = -4x - 5 is -25.
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please help me with this
Answer:
option a 0.06 bared
Solve for the value of a.
104°
(8a-4)°
Answer:
a = 10
Step-by-step explanation:
The image is showing a linear pair which equals 180°
104° is shown.
If you take 180° and subtract 104° you should get the answer to what (8a -4)° should equal to.
180° - 104° = 76°
Your equation should look like : 8a - 4 = 76°
-- Add 4 to both sides
8a - 4 = 76°
+4 +4
= 8a = 80
-- Divide 8 on both sides
8a/8 = 80/8
a = 10
Proof:
8(10) - 4 =
80 - 4 = 76°
104° + 76° = 180°
Hope this helps!
--Blu
can anyone tell me what goes with what?
Answer:
hope u will be clear from the given definition
Identify the equation that represents the sentence “Find two consecutive odd integers whose sum is 116”.
Multiple choice question.
cross out
A)
n
(
n
+
2
)
=
116
cross out
B)
n
(
n
+
1
)
=
116
cross out
C)
2
n
+
2
=
116
cross out
D)
2
(
n
+
2
)
=
116
Answer:
Answer: 57 & 59
Step-by-step explanation:
Let us assume first odd integer is 'x'
Then, next consecutive integer should be 'x+2'. RIGHT?
Now, put in the form of equation:
x + (x+2) = 116
x + x + 2 = 116
2x + 2 = 116
2x = 116 - 2
2x = 114
x = 114 / 2 => 57
Now, put the value of 'x' in second step:
x + 2 => 57 + 2 = 59
Therefore, answer would be 57 & 59