Answer:
\((0,-5)\)
General Formulas and Concepts:
Pre-Alg
Order of Operations: BPEMDASAlg I
Midpoint Formula: \((\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})\)Step-by-step explanation:
Step 1: Define
Point (-4, -9)
Point (4, -1)
Step 2: Find midpoint
Substitute: \((\frac{-4+4}{2},\frac{-9-1}{2})\)Add/Subtract: \((\frac{0}{2},\frac{-10}{2})\)Divide: \((0,-5)\)22. The mean of 15 observations is 32. Find the resulting mean, if each observation is: (i) increased by 3 (ii) decreased by(v) increased by 60 percent
Answer:
35 ;
32 + v
51.2
Step-by-step explanation:
If each observations in a particular set is increased or decreased by a uniform or fixed number, the mean of the resulting output will also increase by the same amount
Hence,
For 15 observations whose mean is 32
If each observation is increased by 3, then the resulting mean will also increase by 3 ; hence, new mean = 32 + 3 = 35
If each observation is decreased by v ; the resulting mean would also decrease by v ;
32 - v
If each observation is increased by 60% ; the resulting mean will be ;
(1 + 60%) * initial mean
(1 + 0.6) * 32
1.6 * 32 = 51.2
Catherine owes $22.50 on her lunch
account balance. She pays $15 toward her
balance. What is the status of her lunch
account balance now?
Write a cubic function whose graph is shown.
(-3,0)
(-6,0)
(3, 0)
(0,-9)
Answer:
\(\displaystyle f(x)=\frac{1}{6} x^3+x^2-\frac{3}{2} x-9\)
Step-by-step explanation:
Jocelyn complied data on the number of hours students work per week the summer after senior year. The minimum number of hours is the distribution was 23. The range was 17.
What is the maximum number of hours in the distribution?
Answer:
40
Step-by-step explanation:
"The minimum number of hours is the distribution was 23."
So the lowest number of hours per week is 23
"The range was 17."
So from 23 we add 17 more hours to get the full range.
23 + 17 = 40
The maximum number of hours in the distribution is 40.
1.
7844
A
27
B
26.4
2.
1900
C.
29.1
3.
1650
D.
28,4
4
1784
E
28
F.
26.1
5,
1699
G
25.5
6.
V805
H
30
7
1729
Answer:
gebiz hadi bir ben kusura siz
Step-by-step explanation:
sneidmd
In circle D, which is tangent to the circle?
Line G H
Line segment A B
CD
EF
Answer:
line segment A B
Step-by-step explanation:
it's really a ray, not a line segment
In circle D, the AB line segment is tangent to the circle.
What are the properties of the circle?The circumference, which is the distance around the object, the diameter, which is the length of a circle measured from one end to the other and passing through its center, and the radius, which is equal to half of the diameter, are the three key characteristics.
The general coordinate equation of a circle is:
(x-h)² + (y - k)² = r²
Where,
(h, k) is the center of a circle,
"r" is the radius of the circle.
Since A line that only has one point where it crosses a circle is said to be tangent to the circle. The point of contact is the location where the circle and the tangent meet.
Thus, in the given figure AB is the tangent line segment of the circle D.
From the properties of the circle, we can state that,
FE is Diameter,
The CD is representing the radius, and
GH is representing the Secant line of the circle D.
Therefore, In circle D, the AB line segment is tangent to the circle.
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Zoe is a chemistry teacher earning a salary of $38,000 per year. She also tutors part-time, charging $20 per session. Which of the following types of income does Zoe have?
I earned income
II passive income
III capital gains income
a.
I
b.
II
c.
I and II
d.
I and III
Answer:
Earned Income because she is working full time, but also adds the extra 20$ for when she tutors in her free time
Step-by-step explanation:
[50 point question answer soon! am big confusion]Given g(x )= −2x^2 +1, find the indicated values.
g(2)
\(\\ \sf\longmapsto g(x)=-2x^2+1\)
\(\\ \sf\longmapsto g(2)\)
\(\\ \sf\longmapsto -2(2)^2+1\)
\(\\ \sf\longmapsto -2(4)+1\)
\(\\ \sf\longmapsto -8+1\)
\(\\ \sf\longmapsto -7\)
Answer:
\(g(2)=-7\)
Step-by-step explanation:
We are given \(g(x)= -2x^2 +1\). And our input value is \(g(2)\). Therefore, replace "x" with 2 for every x you see, then solve:
\(g(x)= -2x^2 +1\\\\g(x)=-2(2)^2+1\)
2 squared
\(2 \times 2 = 4\)
Solve the parenthesis. Then complete solution.
\(g(x)=-2(4)+1\\-2 \times 4 = -8\\-8 + 1 = -7\)
\(g(2)=-7\)
how would you draw a distance vs time graph for this problem:
It is now 8:59 am, but when the bell rings at 9:00 am Suzette will be late
for Science class for the third time this week. She must get from one side
of the school to the other by hurrying down three different hallways. She
runs down the first hallway, a distance of 35.0 m, at a speed of 3.50 m/s.
The second hallway is filled with students, and she covers its 48.0 m
length at an average speed of 1.20 m/s. The final hallway is empty, and
Suzette spring its 60.0 m length at a speed of 5.00 m/s
a. Determine if Suzette makes it to class on time by finding
how many seconds she arrives before or after the bell.
To draw a distance vs time graph for this problem, we would plot the distance on the y-axis and time on the x-axis. We would start at time t = 0, which is 8:59 am, and plot the distance that Suzette has traveled up to that point.
How to do?
For the first hallway, Suzette runs 35.0 m at a speed of 3.50 m/s. This means she covers this distance in 10 seconds (35.0 m / 3.50 m/s). So at t = 10 seconds, we would plot a point on the graph at a distance of 35.0 m.
For the second hallway, Suzette covers 48.0 m at an average speed of 1.20 m/s. This means it takes her 40 seconds (48.0 m / 1.20 m/s) to cover this distance. So at t = 50 seconds, we would plot a point on the graph at a distance of 83.0 m (35.0 m + 48.0 m).
For the final hallway, Suzette covers 60.0 m at a speed of 5.00 m/s. This means she covers this distance in 12 seconds (60.0 m / 5.00 m/s). So at t = 62 seconds, we would plot a point on the graph at a distance of 143.0 m (35.0 m + 48.0 m + 60.0 m).
To determine if Suzette makes it to class on time, we need to find how many seconds she arrives before or after the bell, which rings at t = 60 seconds. Suzette arrives at t = 62 seconds, which means she is 2 seconds late for class.
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Simplify these radicals
Answer:
9) 7sqrt(2)
11) 8sqrt(2)
13) 3sqrt(7)
Step-by-step explanation:
9) factor the radicand 98 into 7*7*2, 7^2*2, and then factor out the 7 squared to the outside of the radical to get 7 square roots of 2
11) factor the radicand 128 into 8*8*2, 8^2*2, and then factor out the 8 squared to the outside of the radical to get 8 square roots of 2
13) factor the radicand 63 into 3*3*7, 3^2*2, then factor out the 3 squared outside of the radical to get 3 square roots of 7
Four Figures are shown.
Use the answer bank to create a statement about the measure of Angle w.
Answer:
w = 105° because 180 - (45 + 60) = 75 and 180 - 75 = 105.
Step-by-step explanation:
To find w, we first need to find z.
We can find z by setting up an equation. As we know, all angles in a triangle will add up to 180, we can say that z + 45 + 60 = 180.
We can also rewrite this as 180 - 45 - 60 = z, or 180 - (45 + 60) = z.
Solving this, we get z = 75.
We can also see that w and z are supplementary angles, meaning they will add up to 180.
Therefore, we can come to the conclusion that w + 75 = 180, or 180 - 75 = w.
Solving this we get:
w = 105
Therefore, w = 105°.
\(4√3\)what is equivalent to 4 sqrt 3
The equivalent expression to 4√3 is √48 or 6.928.
What is the equivalent expression?
An equivalent expression is an expression that has equal value to the original given expression.
From the given expression, we can determine its equivalent expression as follows;
The given expression = 4√3
We can square 4 and multiply it by 3 and enclose all with the square root.
4√3 = √(4² x 3 )
= √ ( 16 x 3 )
= √ ( 48 )
= 6.928
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Pablo solved the polynomial equations given in the table. Determine whether each polynomial is correct. Select Correct or Incorrect for each equation.
Equation
(b²+7b-9)+(4b-6b²) = -8b² + 14b-9
(4a+6)-(3a²-9a+1)=-3a²+ 13a +5
(12c-8c²)+(5c²- 10c) = -3c²+2c
The first equation is incorrect.
The second equation is correct.
The third equation is correct.
Let's go through each equation and determine whether it is correct or incorrect:
(b²+7b-9)+(4b-6b²) = -8b² + 14b-9
To determine if this equation is correct, we need to simplify both sides and check if they are equal.
On the left side:
(b²+7b-9)+(4b-6b²) = b² - 6b² + 7b + 4b - 9 = -5b² + 11b - 9
On the right side:
-8b² + 14b - 9
Comparing both sides, we can see that -5b² + 11b - 9 is not equal to -8b² + 14b - 9. Therefore, the equation is incorrect.
(4a+6)-(3a²-9a+1)=-3a²+ 13a +5
Again, we need to simplify both sides of the equation and check if they are equal.
On the left side:
(4a+6)-(3a²-9a+1) = 4a + 6 - 3a² + 9a - 1 = -3a² + 13a + 5
On the right side:
-3a² + 13a + 5
Comparing both sides, we can see that -3a² + 13a + 5 is equal to -3a² + 13a + 5. Therefore, the equation is correct.
(12c-8c²)+(5c²- 10c) = -3c²+2c
Again, let's simplify both sides and compare them.
On the left side:
(12c-8c²)+(5c²- 10c) = 12c - 8c² + 5c² - 10c = -3c² + 2c
On the right side:
-3c² + 2c
Comparing both sides, we can see that -3c² + 2c is equal to -3c² + 2c. Therefore, the equation is correct.
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What is the center of the circle?
A.(-1,-6)
B.(3,−1)
C.(−1,3)
D.(−6,1)
Answer:
B
Step-by-step explanation:
The x component must be positive (3)
Use the coordinates of the labeled point to find the point-slope equation of
the line.
A. y-5=-3(x+3)
B.y-3-(x+5)
C. y + 5 = 3(x+3)
D. y + 5 = -3(x-3)
(3,-5)
By using the coordinates of the labeled point, the point-slope equation of the line include the following: D. y + 5 = -3(x - 3)
How to determine an equation of this line?In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
x and y represent the data points.m represent the slope.0 5 2 -2
First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (4 + 5)/(0 - 3)
Slope (m) = -9/3
Slope (m) = -3
At data point (3, -5) and a slope of -3, a linear equation for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - (-5) = 3(x - 3)
y + 5 = -3(x - 3)
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
The Lucas sequence is like the Fibonacci sequence except that the starting numbers are 2 and 1 instead of 1 and 0. What are the first ten terms of the Lucas sequence?
The first ten terms of the Lucas sequence are 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843.
What is Lucas sequence?The Lucas sequence or Lucas series are an integer sequence named after the mathematician francois Edouard Lucas, which are similar to the Fibonacci numbers, each Lucas number is defined to be the sum of its two immediate previous terms, thereby forming a fibonacci integer sequence.
Now, the sequence of first 10 numbers of Fibonacci series are-
0, 1, 1 ,2, 3, 5, 8, 13, 21, 34
which are defined as set of integers that starts with zero, followed by a one,then by another one and then by series of steadily increasing numbers,The sequence follow the rule that each number is equal to the sum of preceding two numbers.
And the sequence of Lucas sequence is -
2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843.
which is definedas the sum of its two immediate previous terms.
The Lucas number may thus be defined as follows;
Ln = \(\left \{ {{2} ; if n= 0 \atop {1}; if n = 1} \right.\)
Here we can see that Lucas series starts with 2 and 1 whereas Fibonacci series starts with 0 and 1.
Hence,The first ten terms of the Lucas sequence are 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843.
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Find the common difference of the sequence 4, 12, 20, ....
8
In this pattern, we have 4 12 then 20.
We can see that the difference 4 and 12 is 8.
Since the difference between 12 and 20 is also 8, the common difference of the sequence is 8.
What is the meaning of "\( \varphi (x,y)\) be \( y\wedge \phi (x)\) "?
The reasoning presented lacks explicit explanations and logical connections between the steps, making it difficult to fully understand the intended proof strategy.
The given proof aims to show that the Separation Axioms can be derived from the Replacement Schema using a particular construction involving a formula p(x, y). Let's analyze the proof step by step:
Define the formula p(x, y) as x = yo(x).
This formula states that for each x, y pair, x is equal to the unique object y such that y is obtained by applying the operation o to x.
Define the set F as {(x, x) (x)}.
This set F contains pairs (x, x) where x is the unique object obtained by applying the operation (x) to x.
Claim: F(X) = {y (x = X)p(x, y)} = {y: (x = X)x = y^o(x)} = {x: (3x € X)o(x)} = {x X: (x)}.
This claim asserts that F(X) is equivalent to {y (x = X)p(x, y)}, which is further equivalent to {y: (x = X)x = y^o(x)}, and so on.
The proof states that since (x, y) satisfies the functional formula VaVyVz(p(x, y)^(x, z) y = z), it follows that (x, y) is a functional formula.This step emphasizes that the formula p(x, y) satisfies certain properties that make it a functional formula, which is relevant for the subsequent deductions.
Finally, the proof concludes that the Separation Axioms follow from the Replacement Schema, based on the previous steps.
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Which of the following is equivalent to the expression below?
Answer:
A is true
Step-by-step explanation:
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
\(\textbf {Allow me to assist you.}\)
\(\textrm {Let's simplify the terms under the radicals.}\)
\(\mathsf {\sqrt{8} - \sqrt{72} + \sqrt{50}}\)
\(\mathsf {\sqrt{2 \times 2^{2}} - \sqrt{2 \times 6^{2}} + \sqrt{2 \times 5^{2}}}\)
\(\mathsf {2\sqrt{2} - 6\sqrt{2} + 5\sqrt{2}}\)
\(\boxed {\sqrt{2}}\)
\(\textbf {The answer is A.}\)
CAN SOMEBODY HELP ME PLEASEE
Answer:
It is 51
Step-by-step explanation:
because you have to add the 80 and 49 them you will get 129 and then subtract 180 by 129 then you will get your answer
Answer:
51°
Step-by-step explanation:
Sum of angles in a triangle is supplementary,
x + 49° + 80° = 180°
x + 129° = 180°
x = ( 180 - 129 )
x = 51°
Ms. Bassie bikes a total of 11/12 mile to get to and from work each day. Write
an expression that can be used to find the total number of miles that Ms.
Bassie bikes to and from work over 5 days. Then evaluate the expression.
Answer:
Step-by-step explanation:
1 day, she travels 11/12 of a mile.
5 days, she travels 5 * 11/12 miles
5*11/12 = 55/12 = 4 7/12 miles.
I need help with this please
Answer:
23 isnthe anseeerjfhdhvdvd hdjdbbe
In the figure, m∠4=74°
and m∠3=43°
. Find m∠1
and m∠2
.
Answer:
Based on the information given, we know that angles 3 and 4 are supplementary (they add up to 180 degrees) and angles 2 and 4 are vertical angles (they are congruent). Therefore, we can write:
m∠4 + m∠3 = 180 (since angles 3 and 4 are supplementary)
m∠4 = m∠2 (since angles 2 and 4 are vertical angles)
Substituting m∠4 = m∠2 into the first equation, we get:
m∠2 + m∠3 = 180
Now we can solve for m∠2 and m∠3:
m∠3 = 43 (given)
m∠2 = 180 - m∠3 = 180 - 43 = 137
Since angles 1 and 2 are also supplementary, we can find m∠1 by subtracting m∠2 from 180:
m∠1 = 180 - m∠2 = 180 - 137 = 43
Therefore, m∠1 = 43 degrees and m∠2 = 137 degrees.
Montel has a circular garden with a diameter of 12 feet. He purchases
border stones for the circumference of his garden. Each border stone is 1 foot long. How many border stones should Montel buy?
What is the sign of the product (-5)(-3)(-8)(-6)? (5 points) Positive, because the products (-5)(-3) and (-8)(-6) are negative, and the product of two negative numbers is positive Positive, because the products (-5)(-3) and (-8)(-6) are positive, and the product of two positive numbers is positive Negative, because the products (-5)(-3) and (-8)(-6) are negative, and the product of two negative numbers is negative Negative, because the products (-5)(-3) and (-8)(-6) are positive, and the product of two positive numbers is negative
Positive, because the products (-5)(-3) and (-8)(-6) are positive, and the product of two positive numbers is positive
=======================================================
Explanation:
Recall we have these rules
positive times positive = positivepositive times negative = negativenegative times negative = positiveHere is one example for each rule
8*7 = 565*(-9) = -45-2*(-4) = 8So based on that, we know that (-5)(-3) is positive. The two negatives cancel each other out so to speak. The same goes for (-8)(-6). Then multiplying any two positive numbers produces another positive outcome.
Ms.Cody needs 1 3/4 yards of fabric to make one pillow.How many yards of fabric will she needs to make 12 pillows
Answer:
oh 21
Step-by-step explanation:
1 times 12 is 12 and 3/4 times 12 is 36/4 =9. 9 plus 12 is 21
Answer:
21 yards.
Step-by-step explanation:
1 3/4 = 7/4.
7/4 * 12
= 84/4
= 21 yards.
5. 3y(4 + 5x) *
(1 Point)
12y + 15x
12y + 15xy
4 + 15x
Answer:
The answer should be 12y+15xy
Step-by-step explanation:
Answer:
12y+15yx
Step-by-step explanation:
Given are the functions f(x) = x ^ 2 and g(x) = (x - 2) ^ 2 + 1 How can the graph of g(x) be obtained from the graph of f(x) ?
Answer:
c because it's the opposite
A public opinion survey investigated whether a majority (more than 50%) of adults supported a tax increase to help fund the local school system. A random sample of 200 adults showed that 113 of those sampled supported the tax increase.
Researchers used these results to test H0:p=0.5 versus Ha:p>0.5, where p is the true proportion of adults that support the tax increase. They calculated a test statistic of z≈1.84 and a corresponding P-value of approximately 0.033.
Assuming the conditions for inference were met, which of these is an appropriate conclusion?
A. At the α=0.01 significance level, they should conclude that more than 50% of adults support the tax increase.
B. At the α=0.01 significance level, they should conclude that less than 50% of adults support the tax increase.
C. At the α=0.05 significance level, they should conclude that more than 50% of adults support the tax increase.
D. At the α=0.05 significance level, they should conclude that less than 50% of adults support the tax increase.
Answer: C. At the α=0.05 significance level, they should conclude that more than 50% of adults support the tax increase.
Step-by-step explanation:
Given: Null hypothesis: \(H_0:p=0.5\)
Alternative hypothesis: \(H_a: p>0.5\)
p-value = 0.033
If the p-value is greater than alpha (p > . 05), then we fail to reject the null hypothesis.
If α=0.01 , then p-value > α i.e. we fail to reject the null hypothesis.
Conclusion: Exactly 50% of adults support the tax increase.
If α=0.05 then p-value < α i.e. we reject the null hypothesis.
Conclusion: more than 50% of adults support the tax increase.
Thus, Correct option: C .
Answer: At the a = 0.05 significance level, they should conclude that more than 50% of adults support the tax increase.
Step-by-step explanation:
Mrs. Jackson needs to earn $3,000 a month. How much does she need to sell if she earns 15% commission on everything she sells?
The amount that she needs to sell 15% commission is $2,000.
Given that,
Mrs. Jackson needs to earn $3,000 a month. The commission percentage is 15%.Let us assume the amount be x.Based on the above information, the calculation is as follows:
15% of x = $3,000
x = $2,000
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Mrs. Jackson needs to sell a total of $20,000 worth of products to earn $3,000 a month with a 15% commission on everything she sells.
Given that,
Mrs. Jackson needs to earn $3,000 a month.
The commission percentage is 15%.
Let us assume the amount be x.
To calculate how much Mrs. Jackson needs to sell to earn $3,000 a month, we can use the formula for commission-based earnings:
Earnings = Commission Rate × Sales
We know that Mrs. Jackson earns a 15% commission on everything she sells, and her goal is to earn $3,000 a month.
Let x be the total sales amount she needs to achieve her goal.
Earnings = 0.15x
According to the problem, she needs to earn $3,000, so we can set up the equation:
0.15x = $3,000
Now, to find x, we need to isolate it on one side of the equation. We can do that by dividing both sides by 0.15:
x = $3,000 / 0.15
x = $20,000
So, Mrs. Jackson needs to sell a total of $20,000 worth of products to earn $3,000 a month with a 15% commission on everything she sells.
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