Answer:
3 = -4/3x + 2
Step-by-step explanation:
Slope intercept form: y = mx + b
Standard form: Ax + By = C
y = mx + b
4x + 3y = 6
3y = -4x + 6
3y/3 = -4x/3 + 6/3
3 = -4/3x + 2
Answer:
\(y=-\frac{4x}{3} +2\)
Step-by-step explanation:
Step 1: Remember slope and intercept form
Remember that slope-intercept form is y=mx+b
Step 2: Solve
Rearrage and isolate y
\(4x+3y=6\\3y=-4x+6\\y=\frac{-4x}{3}+2\)
Step 3: Therefore Statement
Therfore the slope intercept form of the equation is \(y=-\frac{4x}{3} +2\)
Suppose you want to test the claim that μ>25.6. Given a sample size of n=42 and a level of significance of α=0.025, when should you reject the null hypothesis?
A. if the standardized test statistic is greater than 1.96
B. if the standardized test statistic is greater than 1.28
C. if the standardized test statistic is greater than 2.33
D. if the standardized test statistic is greater than 1.65
If the test statistic is higher than 1.645, reject H0. If the test statistic is higher than 2.33, reject H0.
What is null hypothesis?Conjectures used in statistical tests, which are formal techniques for drawing conclusions or making judgments based on data, include the null hypothesis and the alternative hypothesis.
The hypotheses, which are based on a sample of the population, are suppositions regarding a statistical model of the population.
The tests are essential components of statistical inference and are frequently used to distinguish between statistical noise and scientific claims when interpreting experimental data in science.
"The null hypothesis is the proposition under investigation in a statistical significance test.
The significance test is intended to determine how strong the evidence is against the null hypothesis. The null hypothesis is typically a claim that there is "no effect" or "no difference.
H0 is a common way to represent it.
Hence, If the test statistic is higher than 1.645, reject H0. If the test statistic is higher than 2.33, reject H0.
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if x=2y - 1 and 2x3y + 2, then x = ?
Answer:
the value of x is 7
Step-by-step explanation:
The computation of the value of the x is given below:
Given that
x = 2y - 1...........(1)
2x = 3y + 2.................(2)
Put the equation 1 in equation 2
i.e.
2(2y - 1) = 3y + 2
4y - 2 = 3y + 2
y = 4
So,
x = 8 - 1
= 7
Hence, the value of x is 7
Factor as the product of two binomials.
x
2
+
3
x
+
2
=
x2+3x+2=x, squared, plus, 3, x, plus, 2, equals
Answer:
(x+1)(x+2)
Step-by-step explanation:
Answer:
(x-1)(x-2)
Explanation:
To factor x^2-3x+2 as (x+a)(x+b) we need to find number a and b such that a+b=-3 ab=2
Summary of above: (−1)+(−2)=−3
So the integers we are looking for are
−1 and −2
Therefore, x^2-3x+2=(x-1)(x-2)
The greatest common factor of 250 and 300 is?
Answer:
GCF: 50
Step-by-step explanation:
Let's test
50 ( 5 + 6)
= 250 + 300
So, my answer is correct!
12.79 less than the product of 42 and x
Answer:
hdhdhdhdhd
Step-by-step explanation:
hhffhffjfj
2x-1=y
3x-1=y
Consider the system of equations above. Which of the following statements about this system is true?
Answer:
B; There is only one (x,y) solution and y is negative
Step-by-step explanation:
First, I graphed the two equations. Attached is an image of the equations graphed. Next, I looked for overlapping points. Wherever the two points overlap, there is a solution. When looking at the graph, we can see the lines overlap at only one point, (0,-1). Since y is negative, the answer must be B; there is only one (x,y) solution and y is negative.
If this answer helped you, please leave a thanks!
Have a GREAT day!!!
Let F(x) = f(x ^ 9) and G(x) = (f(x)) ^ 9 You also know that a ^ 8 = 15 , f(a) = 2 , f^ prime (a)=7,f^ prime (a^ 9 )=11
Answer:
Explanation:
a) F'(a)
From what we have:
\(\begin{gathered} F(x)\text{ = f\lparen x}^9) \\ F(a)\text{ = f\lparen a}^9) \\ F^{\prime}^(A)\text{ = f'\lparen a}^9)\text{ = 11} \\ \end{gathered}\)b) G'(a)
\(\)20. Find the unknown angle measures.
51°
53°
The unknown angle measures are d = 76, c = 53, a = 51 and b = 76
Finding the unknown angle measures.From the question, we have the following parameters that can be used in our computation:
The lines
The sum of angles on a line is 180
So, we have
b = 180 - 51 - 53
b = 76
By vertical angle theorems, we have
d = 76
c = 53
a = 51
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need help
Determine when a simple 2x2 system of linear equations has no solutions.
If m = -5 or m = 3, the system of linear equations has no solution.
To determine the values of m for which the system of linear equations has no solution, we need to check the determinant of the coefficient matrix, which is:
| 3 m |
| m+2 5 |
The determinant is
= (3 x 5) - (m x (m+2))
= 15 - m^2 - 2m
= -(m^2 + 2m - 15)
= -(m+5)(m-3)
So, for the system to have no solution, the determinant must be zero, so we have:
-(m+5)(m-3) = 0
This gives us two values of m: m = -5 and m = 3.
Thus, if m = -5 or m = 3, the system of linear equations has no solution.
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What is the equation of the line that passes through the point(-8,1) and has a slope of -3/4
Answer:
slope = -3/4
using the formula
y -y1 = m(x -x1)
y -1 = -3/4(x -(-8))
y -1 = -3/4(x +8)
cross multiply
4(y -1) = -3(x +8)
4y -4 = -3x -24
4y = -3x -24 +4
4y = -3x -20
divide both sides by 4
y = -3/4 x -5 (equation of the line)
Tony had $z. He lost $3.
a) Write an algebraic expression for the amount he has left.
Answer: T = z - 3
Step-by-step explanation: "T" represents the total amount of money he has left, so T = z [Whatever amount he had to begin with] - 3 [The amount he lost]. Hope that this helps!
Another way to show this equation is with the slope-intercept for of y = x -3
HELP ASAP;The tree diagram represents an
experiment consisting of two trials.
Answer:
P(A) = 0.5
Step-by-step explanation:
Look from the tree root (left) and find A.
When you reach the first branch that shows A, the probability is on it's left, so
P(A) = 0.5
the student government claims that 70% of all students favor an increase in student fees to buy indoor potted plants for the classrooms. a random sample of 12 students produced 2 in favor of the project.
(a) What is the probability that 2 or fewer in the sample will favor the project, assuming the student government's claim is correct? (Use 3 decimal places.) (b) Do the the data support the student government's claim, or does it seem that the percentage favoring the increase in fees is less than 70%? The data do not give us any indication that the percent favoring the increase in fees differs from 70%. The data seem to indicate that the percent favoring the increase in fees is greater than 70%. The data seem to indicate that the percent favoring the increase in fees is less than 70%. The data seem to indicate that the percent favoring the increase in fees is equal to 70%.
The probability that 2 or fewer in the sample will favor the project is 4.368 × 10⁻⁶ and Also The data seem to indicate that the percent favoring the increase in fees is less than 70%
According to the question,
It is given that according to the student's government
The probability that number of students in favor of increment in fees : p = 0.70
The probability that number of students against the increment : q = 0.30
Sample Size : n = 12
Number of students follows Binomial distribution
(a) We have to find the probability that 2 or fewer in the sample will favor the project
P( x ≤ 2) = P(0) + P(1) + P(2)
As we know ,
P(x) = ⁿCₓpˣq⁽ⁿ⁻ˣ⁾
=> P( x ≤ 2) = ¹²C₀p⁰q¹² + ¹²C₁p¹q¹¹ + ¹²C₂p²q¹⁰
=> P( x ≤ 2) = 1×(0.30)¹² + 12×(0.70)(0.30)¹¹ + 12×11/2 × (0.70)²(0.30)¹⁰
=> P( x ≤ 2) = (0.30)¹⁰ [ 0.09 + 0.21 + 0.48]
=> P( x ≤ 2) = 5.9×10⁻⁶[0.78]
=> P( x ≤ 2) = 4.368 × 10⁻⁶
Which is very close to zero
(b) The data doesn't support the student government claim.
The data seem to indicate that the percent favoring the increase in fees is less than 70%.
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A rental car company charges $20 per day to rent a car and $0.10 for every mile driven. Addison wants to rent a car, knowing that:
She plans to drive 100 miles.
She has at most $80 to spend.
Considering the definition of an inequality, the inequality that can be used to determine x is 20x + 10≤ 80
Definition of inequalityAn inequality is the existing inequality between two algebraic expressions, connected through the signs:
greater than >.less than <.less than or equal to ≤.greater than or equal to ≥.An inequality contains one or more unknown values called unknowns, in addition to certain known data.
Solving an inequality consists of finding all the values of the unknown for which the inequality relation holds.
This caseA rental car company charges $20 per day to rent a car and $0.10 for every mile driven.
Addison wants to rent a car, knowing that:
She plans to drive 100 miles.She has at most $80 to spend.On the other hand, x represents the maximum number of days Alyssa can afford to rent for while staying within her budget.
Then, the inequality that can be used to determine x is:
20x + 0.1×100≤ 80
So:
20x + 10≤ 80
In summary, the inequality that can be used to determine x is 20x + 10≤ 80
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‼️PLEASE HELP‼️ PRECALC
Your sailboat catches a constant 23 mph wind out of the south but the current is running from north west to south east at 7 mph. Draw a diagram to represent the situation. What is the resulting speed and direction of the sailboat?
The resulting speed of the sailboat is 28.4 mph.
The direction of the boat is 80⁰.
What is the resultant speed of the sailboat?The resulting speed of the sailboat is calculated by applying Pythagoras theorem as follows;
Vr = √(Vy² + Vx² )
where;
Vx is the x component of the velocity Vy is the y component of the velocityVr = √(Vy² + Vx² )
Vx = 23 mph cos (90) + 7 mph cos(45)
Vx = 0 + 4.95 mph
Vy = 23 mph sin (90) + 7 mph sin(45)
Vy = 23 mph + 4.95 mph = 27.95 mph
The resultant speed of the sailboat is calculated as follows;
Vr = √ (27.95² + 4.95² )
Vr = 28.4 mph
The direction of the boat is calculated as follows;
θ = arc tan (Vy/Vx)
θ = arc tan ( 27.95 / 4.95 )
θ = 80⁰
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what is the range of exponential function f(x)=9*2^x
Answer:
uhm smhtn
Step-by-step explanation:
i really just want points.
Answer:
(0,infinity)
Step-by-step explanation:
.
Find the y-intercept for the parabola defined by
this equation:
y=-4x^2-x+3
Answer:
y is 0,3
Step-by-step explanation:
To find the x-intercept, substitute in
0
for
y
and solve for
x
. To find the y-intercept, substitute in
0
for
x
Answer:
(0,3)
Step-by-step explanation:
Two methods:
Method 1: General method for any equation
Method 2: Method specific for parabolas in standard form
Method 1: General method for any equation
For any two-variable equation to be graphed, the y-intercept is the point where the graph crosses the y-axis. The y-axis is a vertical line through the origin (0,0).
Any y-intercept is on that line, and to get to that point starting from the origin, one can't travel left or right to get to the y-intercept point (without moving back to the y-axis). The only movement would be up or down.
Since no left-right movement will happen, the x-coordinate is zero.
For any two-variable equation, the x and y coordinates of any point on the graph are linked by the equation. If it is known that the x-value is zero, the y-value associated with that x-value is given by substituting zero into the equation everywhere there is an "x", and solving for "y".
\(y=-4x^2-x+3\)
\(y=-4(0)^2-(0)+3\)
Order of operations requires exponents before multiplication, or addition & subtraction...
\(y=-4(0)-(0)+3\)
multiplication...
\(y=0-0+3\)
addition & subtraction, from left to right...
\(y=3\)
So, when the x-value is zero, the y-value is three. Therefore, the ordered pair representing that point is (0,3).
Method 2: Method specific for parabolas in standard form
The given equation is the equation for a parabola (as stated in the question), and it is given in "standard form": \(y=ax^2+bx+c\), where a, b, and c are real numbers (and a isn't equal to zero, because then the x-squared term would be zero, and the equation would really just be a linear equation).
Note that for our equation, it is in standard form if we rewrite the equation to only use addition, \(y=-4x^2+-1x+3\), where \(a=-4, ~b=-1 ~ \text{and}~c=3\)
For a parabola in standard form, the y-intercept is always at a height of "c".
So, the y-intercept would be (0,3).
The temperature in a hotel is 21 °C.
The temperature in the hotel is 26,7°C warmer than at the top of the mountain.
The temperature at the top of the mountain is 3.2°C colder than at the bottom of the mountain.
Work out the temperature at the bottom of the mountain.
The temperature at the bottom of the mountain is 50.9 °C.
Let's work through the given information step by step to find the temperature at the bottom of the mountain.
The temperature in the hotel is 21 °C.
The temperature in the hotel is 26.7 °C warmer than at the top of the mountain.
Let's denote the temperature at the top of the mountain as T_top.
So, the temperature in the hotel can be expressed as T_top + 26.7 °C.
The temperature at the top of the mountain is 3.2 °C colder than at the bottom of the mountain.
Let's denote the temperature at the bottom of the mountain as T_bottom.
So, the temperature at the top of the mountain can be expressed as T_bottom - 3.2 °C.
Now, let's combine the information we have:
T_top + 26.7 °C = T_bottom - 3.2 °C
To find the temperature at the bottom of the mountain (T_bottom), we need to isolate it on one side of the equation. Let's do the calculations:
T_bottom = T_top + 26.7 °C + 3.2 °C
T_bottom = T_top + 29.9 °C
Since we know that the temperature in the hotel is 21 °C, we can substitute T_top with 21 °C:
T_bottom = 21 °C + 29.9 °C
T_bottom = 50.9 °C
Therefore, the temperature at the bottom of the mountain is 50.9 °C.
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1. A prospective buyer of a new car can choose between manual or automatic transmission and can also choose from
Step-by-step explanation:
you want to
come on
zoom
with
me
In the diagram below, lines a and b are parallel and lines c and d are transversals that cut through lines a and b. Which angles are congruent to
As shown in the diagram :
lines a and b are parallel and lines c and d are transversal that cut through lines a and b.
So, there are 3 types of angles that are congruent to the angle V
1) The vertex angles are congruent
So, the angle S is congruent to angle V
2) the angle Z is congruent to the angle V
They are corresponding angles
3) The angle W is congruent to the angle V
They are alternatives angles
Write as a mixed number. 60/7
Answer:
8 3/7
Step-by-step explanation:
divide 60 by 7 and it goes 8 times with 3 leftover
The value of the digit 9 in the number 29,461 is 10 times the value of the digit 9
in which number?
А
46,195
B
53,982
с
89,354
D
93,610
Answer:
Option B
Step-by-step explanation:
Given the following question:
9 is 10 times the value
29,461 ⇒ thousands place
\(100\times10=1000\)
Your answer is option B or "53,982". Since the nine is in the hundred's place, and one-hundred times ten, is equal to a thousand.
\(900\times10=9000\)
Hope this helps.
The value of the digit 9 in the number 29,461 that is 10 times the value of the digit 9 is; B: 53,982
How to interpret Digits?
We are given the number 29461.
In the given number;
1 is units
6 is tens
4 is hundred
9 is thousands
2 is ten thousands
This means any number that will has to be multiplied by 10 to give the 9000 above will have to be hundreds.
From the given options, only 53982 contains 9 in the hundreds position and so is correct.
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A child is flying a kite. If the kite is "h" feet above the child's hand level and the wind is blowing it on a horizontal course at "v" feet per second, the child is paying out cord at _____ feet per second when "s" feet of cord are out. Assume that the cord remains straight from hand to kite.
The child is paying out cord at a rate of s(ds/dt)) /√(s²-h²) feet per second when "s" feet of cord are out.
What is Differential equation?A differential equation is an equation that contains one or more functions with its derivatives.
The distance between the kite and the child's hand level "d".
By using the Pythagorean theorem, we can write:
d² + h² = s²
Simplifying and solving for d, we get:
d² = s²-h²
d = √(s²-h² )
Let's call the length of the cord "L". Then, we can write:
d² + L² = s²
Differentiating both sides with respect to time (t), we get:
2d (dd/dt) + 2L (dL/dt) = 2s (ds/dt)
We want to find (dL/dt) when L = s and d = √(s²-h² )
(dd/dt) = 0 as the height of the kite above the child's hand level is constant.
(dL/dt) = (s(ds/dt) - d (dd/dt)) / L
Substituting in the values we found for d and L, we get:
(dL/dt) = s(ds/dt)) / √(s²-h² )
Therefore, the child is paying out cord at a rate of s(ds/dt)) /√(s²-h²) feet per second when "s" feet of cord are out.
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Find g(h(x))
f(x) = 4x – 6
g(x) = 5/3x + 1
h (x) = -12x^2 - 6x
Answer:
g(h(x))
Step-by-step explanation:
g(h(x))=
\((5 \div 3)( (- 12) {x}^{2} - 6x) + 1 = \\ (5 \times( - 12) {x}^{2} ) \div 3 - (5 \times 6x) \div 3 + 1 = \\ (5 \times (- 4) {x}^{2} ) -( 5 \times 3x) + 1 = \\ - 20 {x}^{2} - 15x + 1\)
The length of a rectangle is 3m less than double the witch, and the area of the rectangle is 27m^2. Find the dimensions of the rectangle.
Answer:
the area of the rectangle is A=L•W
The length is 3m less than twice its width W: L+ 3m=2W...->, L=2W-3m
A=L-W
27m²=(2W-3m)-W
27m2=2w2-3m-W
2w2-3wm-27m2=0
....use quadratic formula -(-3m)+ (-3m)²-4-2-(-27m²)
W=
2-2
w=(3m± √9m²+216m²)
w=(3m+ √225m²)
W=(3m± 15m...you need only positive root because width cannot be negative
W= 3m+15m
4
W=. 4
18m
W=4.5m ......now find the L
L=2.4.5m-3m
L=9m-3m
L=6m
Answer:
W = 4.5cm
L = 6cm
Step-by-step explanation:
Describe a Type I error for this test.
A. Concluding that the average level of mercury uptake in wading birds in a region today is equal to 16 parts per million, when in fact, the average level of mercury uptake in wading birds in a region today is lessless than 16 parts per million.
B. Concluding that the average level of mercury uptake in wading birds in a region today is moremore than 16 parts per million, when in fact, the average level of mercury uptake in wading birds in a region today is equal to 16 parts per million.
C. Concluding that the average level of mercury uptake in wading birds in a region today is lessless than 16 parts per million, when in fact, the average level of mercury uptake in wading birds in a region today is equal to 16 parts per million.
Answer:
The correct option is (C).
Step-by-step explanation:
Missing information:
According to a university of wildlife ecology and conservation researcher, the average level of mercury uptake in wading birds in a region has declined over the past several years. Five years ago, the average level was 16 parts per million. Give the null and alternative hypotheses for testing whether the average level today is less than 16 ppm.
The hypothesis can be defined as follows:
H₀: The average level of mercury uptake in wading birds in a region is 16 ppm, i.e. μ = 16.
Hₐ: The average level of mercury uptake in wading birds in a region is less than 16 ppm, i.e. μ < 16.
A Type I error is the rejection of a null hypothesis (H₀) when indeed the null hypothesis is true. It is symbolized by α.
In this case the type I error can be defined as:
Concluding that the average level of mercury uptake in wading birds in a region today is less than 16 parts per million, when in fact, the average level of mercury uptake in wading birds in a region today is equal to 16 parts per million.
The correct option is (C).
simply:80 divided by 4 minus 2(2+1)2 squared
Answer: 2
Step-by-step explanation: (I'm not sure if you meant 80/4 - 2*(2+1)^2 but I will solve that one just in case)
80/4 = 20
(2+1)^2 = 3*3 = 9
2*9 = 18
20 - 18 = 2
The simplified value of the expression 80/4 - 2*(2+1)² is: 2.
Here, we have,
given that,
the expression is:
80 divided by 4 minus 2(2+1)2squared
we get, we have to simplify this
now, we have,
80/4 - 2*(2+1)²
as, we know,
80/4 = 20
and, we have,
(2+1)²
= 3×3
= 9
so, we get,
2×9 = 18
so, we have,
20 - 18 = 2
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1)Which of the ordered pairs is NOT a
function?
a) {(3,3),(3,4),(4,5),(4,6)}
b) {(0,8),(8,4),(2,7),(-2,6)}
c) { (-1,3), (1,7), (7,4),(-3,8) }
d) {(-6,5),(5,1), (7,4),(-3,8) }
Answer:
a) {(3,3),(3,4),(4,5),(4,6)}
Step-by-step explanation:
Given
(a) to (d)
Required
Which is not a function
A relation is represented as:
\(\{(x_1,y_1),(x_1,y_1),(x_2,y_2),...............(x_0,y_0)\}\)
For the relation t be a relation, then:
\(x_i \ne x_j\)where \(i \ne j\)
This means that none of the x values must be related.
The first relation has 3 repeated as its value of . Hence, (a) is a relation
An amusement park has two roller coasters. One is 628 feet long, and the other is 485 feet long if you ride both roller coasters, about how many feet will you travel in all
Answer:
1113
Step-by-step explanation:
628ft+485ft=1113ft
Corey and Braden spent $4.75 on supplies for their hot chocolate shop. On the day of their hot chocolate sale, they sold 8 small cups of hot chocolate for $1.75 each, 13 large cups of hot chocolate at $2.00 each, and 12 mini candy canes for $0.25 each. Corey and Braden split their profit in three – a third for Corey, a third for Braden, and a third for Corey and Braden to invest in their hot chocolate shop.
How much money did they make on all three items them sold before any deductions?
Answer:
$43
Step-by-step explanation:
Multiply 1.75 and 8 which equals 14
2.00 times 13 is 26
.25 times 12 is 3
Add 'em all up and you get $43(before dividing them up in thirds)
If you divide them by 3 each third is 14.33 repeating.