Answer : These are points on a coordinate plane
Find the midpoint of the line segment with endpoints P1(11/2,3/8) and P2 (-7/2,5/8)
To find:
The midpoint of the line segment with the endpoints P1(11/2,3/8) and P2 (-7/2,5/8).
Solution:
The midpoint formula is:
[tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Put the values:
[tex]\begin{gathered} (\frac{\frac{11}{2}-\frac{7}{2}}{2},\frac{\frac{3}{8}+\frac{5}{8}}{2})=(\frac{\frac{4}{2}}{2},\frac{\frac{8}{8}}{2}) \\ =(\frac{2}{2},\frac{1}{2}) \\ =(1,\frac{1}{2}) \end{gathered}[/tex]Thus, the midpoint is (1, 1/2).
Over the last 3 evenings, Maria received a total of 74 phone calls at the call center. The second evening, she received 10 more calls than the first evening. The
third evening, she received 2 times as many calls as the second evening. How many phone calls did she receive each evening?
Number of phone calls the first evening:
Number of phone calls the second evening:
Number of phone calls the third evening:
The number of phone calls on the first evening is 16. The number of phone calls on the second evening is 26. The number of phone calls on the third evening is 32.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Over the last 3 evenings, Maria received a total of 74 phone calls at the call centre. The second evening, she received 10 more calls than the first evening. On the third evening, she received 2 times as many calls as the second evening.
The number of phone calls on the first evening:- x
The number of phone calls on the second evening:- x + 10
The number of phone calls on the third evening:- 2x
x + x + 10 + 2x = 74
4x = 74 - 10
4x = 64
x = 16
The number of phone calls on the second evening:-
x + 10
16 + 10 = 26
The number of phone calls on the third evening:-
2x = 2 x 16 = 32
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a couple has narrowed down the choices of a name for their new baby to first names and middle names. how many different first- and middle-name arrangements are possible?
There are 28 ways in which a couple can choose the name of the baby for its name.
What is defined as the combination?A combination is an algebraic technique for determining the number of possible arrangements in a set of items in which the order of the selection is irrelevant. You can choose the items in just about any order in combinations. Permutations and combinations are often confused.If we need to choose objects from two groups of x and n objects so that one object from each group is chosen, we can do so by calculating the combinations possible by:
= ˣC₁ × ⁿC₁
Let 'x' be the set of first name = 7
Let 'n' be the set of second name = 4
Putting the values in formula;
= ⁷C₁ × ⁴C₁
= 7 × 4
= 28
Thus, there are 28 ways in which a couple can choose the name of the baby for its name.
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The complete question is-
A couple has narrowed down the choices of a name for their new baby to 7 first names and 4 second names.
How many different first- and second-name arrangements are possible?
The probability of a telesales represented making a sale on a customer call is 0.15. find the probability that more than 3 sales are made in 20 calls.
Using Binomial probability distribution,
X = 20, 0.15
P (X ≤ 3) =[tex]20 C_{0} (0.15)^{0} (1-0.15)^{20} + 20C_{1} (0.15)^{1} (1-0.15)^{19} + 20C_{2} (0.15)^{2} (1-0.15)^{18} + 20C_{3} (0.15)^{3} (1-0.15)^{17}[/tex]
P(X ≤ 3) = 0.648
P (X ≥ 3) = 1 - P(X ≤ 3) = 1 - 0.648
P ( X ≥ 3) = 0.352
Therefore, thee required probability is 0.352.
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Which of the following expressions represents the distance between -4 and 1
a) ∣−4+1∣
b) ∣−4−1∣
c) None of the above
1. A.
a_____________
is a fraction where
a and/or b are fractions and b is not equal to 0.
pitel
Rational fraction is a fraction where a and/or b are fractions and b is not equal to 0.
What is rational fraction?Any function that can be expressed mathematically as a rational fraction—an algebraic fraction in which both the numerator and the denominator are polynomials—is referred to as a rational function. The polynomials' coefficients don't have to be rational numbers; they can be found in any field K. Any function that can be expressed as a polynomial divided by a polynomial is said to be rational. The domain of a rational function is the set of all numbers except the zeros of the denominator since polynomials are defined everywhere.
Given Data
a_____________ is a fraction where a and/or b are fractions and b is not equal to 0.
A rational fraction is a fraction where a and/or b are fractions and b is not equal to 0.
Example 1. f(x) =[tex]\frac{x}{x-3}[/tex]
The denominator has only one zero, x = 3.
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A particle moves in a circular orbit x^2+y^2=16. As it passes through the point (2,2sqrt3), its y-coordinate decreases at a rate of 3 units per second. at what rate is x-coordinate changing?
The rate at which the x-coordinate is changing is 3√3 units per second .
In the question ,
it is given that
the equation of the particle moving in the circular orbit is x²+y²=16
given the y coordinate decreases at 3units per second
So, dy/dt = -3.
to find the rate at which the x-coordinate is changing , we will differentiate the given equation.
Differentiating the equation x²+y²=16 with respect to t , we get
d/dt(x²+y²) = d/dt(16)
2x(dx/dt) + 2y(dy/dt) = 0
2x(dx/dt) = -2y(dy/dt)
Dividing both sides by 2 ,
we get ,
x(dx/dt) = -y(dy/dt)
[tex]\frac{dx}{dt} =\frac{-y(\frac{dy}{dt}) }{x}[/tex]
As the particle is passing through the point (2,2√3) , So, the point will satisfy the equation.
Substituting the value of x=2 , y=2√3 and dy/dt= -3 ,
we get ,
dx/dt = ((-2√3)*(-3))/2
= (6√3)/2
= 3√3
Therefore , the rate at which the x-coordinate is changing is 3√3 units per second .
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How to solve this question
The value of the limit of piece wise function is 2k.
What is termed as the piece wise function?A piecewise function is one whose independent variable is described by a series of intervals. It displays a different function for each interval of real numbers. The domain of a function is defined as a set of valid values for such independent variable (in the this case, x) that can be embedded into the function. The range of the a function is the collection of possible values for y that can be obtained after running the function.For the given question;
The piece wise function is defined as a;
f(x) = (x² - k²)/(x - k) , x ≠ k
f(x) = 4 - k , x = k
For the value of lim (x → k⁻) f(x);
Use function for x ≠ k, as the left hand limit of the functions is to be evaluated.
= lim (x → k⁻) f(x)
Let x = k - h, put in the function.
= lim (h → 0) ((k-h)² - k²)/(k - h - k)
= lim (h → 0) h(h - 2k)/-h
= lim (h → 0) 2k - h
Pu h = 0
= 2k
Thus, the value of the limit of piece wise function is 2k.
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489.22 divided 10 to the fourth power
Because 7 and 17 are both prime numbers all whole numbers that end in 7 are prime is Alice correct u must give a reason
Answer: Is 17 a prime number? Yes, 17 is a prime number because it only has two factors, 1 and 17.
What is the solution to |x – 2| + 3 > 17?
x < –12 or x > 16
x < –14 or x > 7
–12 < x < 16
–14 < x < 7
Answer:
Option 1
Step-by-step explanation:
[tex]|x-2|<14 \\ \\ x-2<-14, x-2>14 \\ \\ x<-12, x>16[/tex]
I'm in math 1 honors and I forgot a subject to far into the grade and I need help solving a couple questions its the average rate of change in weeks
Week
x
Number of Animals
x f(x)
1, 62
2, 73
3, 78
4, 86
5, 91
What was the average rate of change from week 1 to week 4?
how would i go about solving this
The average rate of change from week 1 to week 4 is 3 animals per week.
What is mean?It should be noted that a mean simply refers to the average set of numbers that are given.
This will be illustrated as thus:
The total number of rate of change animals from week 1 to week 4 will be:
= (73 - 62) + (78 - 73) + (86 - 78)
= 11 + 5 + 8.
= 24
Therefore, the average will be:
= Total changes / Number of weeks
= 24 / 8.
= 3
Therefore, there's an average of 3 animals added every week.
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j(x) = 3x² + 2x – 5
Find J(3)
Answer:
28
Step-by-step explanation:
J(x) = 3x^2 + 2x - 5
they have asked us to find J(3), therefore substitute x with 3 throughout the equation.
j(3) = 3*3^2 + 2*3 - 5
J(3) = 3*9 + 6 - 5
J(3) = 27 + 6 - 5
J(3) = 33 - 5 = 28
the fibonacci sequence begins with 0 and then 1 follows. all subsequent values are the sum of the previous two, for example: 0, 1, 1, 2, 3, 5, 8, 13. c
The nth term in the Fibonacci series is printed at the conclusion of the program.
What is a Fibonacci sequence?The Fibonacci numbers, also known as Fₙ, are a set of numbers in mathematics where each number is the sum of the two numbers before it. Although some authors omit the initial terms and begin the sequence from 1 and 1 or from 1 and 2, the sequence typically starts from 0 and 1.So, until a condition is satisfied, recursions involve calling a function from within a function.
The necessary function, which uses comments to describe each line, is as follows:
//This defines the function
public static int fibonacci(int n) {
//The function returns -1, if n is negative
if(n<0){
return -1;}
//The function returns the value of n, if n is 0 or 1
if(n==0||n==1){
return n;}
//If otherwise
else{
//The function returns the nth term of the Fibonacci series
return fibonacci(n-1)+fibonacci(n-2);
}
}
Therefore, the nth term in the Fibonacci series is printed at the conclusion of the program.
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The correct question is given below:
The Fibonacci sequence begins with 0 and then 1 follows. All subsequent values are the sum of the previous two, for example: 0, 1, 1, 2, 3, 5, 8, 13. Complete the fibonacci() method, which takes in an index, n, and returns the nth value in the sequence. Any negative index values should return -1.
Ex: If the input is: 7
the out put is :fibonacci(7) is 13
Note: Use recursion and DO NOT use any loops. // is this mean i don't have to use loops? for (int i = 1; i<= n; ++i)
import java.util.Scanner;
public class LabProgram {
public static int fibonacci(int n) {
/* Type your code here. */
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
int startNum;
System.out.println("Enter your number: ");
startNum = scnr.nextInt();
System.out.println("fibonnaci(" + startNum + ") is " + fibonacci(startNum));
}
}
David is starting a new job in sales. he can choose to earn only a 10% commission on sales each month, or earn a monthly base salary of $1,500 with a 3% commission on sales over $7,500. which pay method would earn him more money if he has an average sales of $16,000 each month?
Answer:
Method 2, a monthly base salary of $1,500 with a 3% commission on sales over $7,500, will earn more money.
Step-by-step explanation:
given -
method 1 - he can choose to earn only a 10% commission on sales each month,
method 2-earn a monthly base salary of $1,500 with a 3% commission on sales over $7,500.
also, he has an average sales of $16,000 each month.
according to the question;
method 1 earning =>
10% of $16,000 =>(10/100)*$16,000=$16,00.
method 2 earning =>
$1,500+(3/100)*($16000-$7500)=$1755.
in method 2, a monthly base salary of $1,500 with a 3% commission on sales over $7,500. he will earn more.
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What is the property of the following equation:
2/5 • 5/2 = 1
Answer:
Communitave Property
Step-by-step explanation:
Hope this helps!<3°
Find the value of the exterior or interior angle!
The values of interior angle is 63°, 46°, 71°
What are Interior Angles?
Angles inside a polygon are referred to as interior angles. A triangle, for instance, has three interior angles. Interior angles are sometimes defined as "angles enclosed in the interior region of two parallel lines when they are intersected by a transversal."
Put all the values equal to 180°,
=> (2x+5) + (x+17) + (3x-16) = 180°
Now, solve this equation and find x,
=> 6x + 22 - 16 = 180
=> 6x = 180 - 6
=> x = 174 / 6
=> x = 29°
Put x = 29° in the 2x + 5, x + 17, 3x - 16
2x + 15 | x + 17 | 3x - 16
2 * 29 + 15 | 29 + 17 | 3 * 29 - 16
63° | 46° | 71°
Therefore, the values of interior angle is 63°, 46°, 71°
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What is the product of (−7)(14) • (−6)?
Answer:
Step-by-step explanation:
-588
What value of c in the equation 7c-cy=10x will give a line
with slope +5?
The value of c in the equation 7c - cy = 10x will give a line with slope +5 is -2.
We can rewrite the equation as:-
-cy = 10x - 7c
y = (-10/c) x + 7
Now the equation is in slope-intercept form which is given by:-
y = mx + b
Where,
m represents the slope of the line
b represents the y-intercept of the line
(x,y) represents ordered pair of each point of the line
Comparing both the equations, we get
m = -10/c
b = 7
We have to get m = +5
Hence, equating both the values of m, we get
5 = -10/c
c = -10/5
c = -2
Hence, the value of c is -2.
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Please answer the questions at the top.
Answer: Let's be honest, no one knows the answer. Unless you want to pay coursehero $9.95/mo for an answer and step-by-step explanation, you're toast.
Some of my answers are absolutely amazing, and actually helpful. But some of my answers are not.
A lot of the time, Brainly's "Expert Verified Answers" are very incorrect, and even if you report it, Brainly does not care.
So, if Brainly ITSELF can't answer a question properly, well,
Simply put, your grade is toast.
And if Brainly deletes this absolutely wonderful fantastic answer, that just means that they are acknowledging that these "Expert Verified Answers" are not as "expert" as they may think they are.
:|
PLEASE HELP
find two functions define implicity by this equation. x + y^2 = 25
PHOTO ATTACHED
Answer:
y = √25 - x
y = -√25 - x
Step-by-step explanation:
x + y² = 25
-x -x
----------------------
y² = -x + 25
√y² = √-x + 25
y = √25 - x
y = -√25 - x
I hope this helps!
HELP LAST QUESTION
multiple the polynomials (3x^2 - 5x +7) and (2x^2 + x - 2) simply the answer
Answer:
Use the distributive property to solve this.
(3x²-5x+7)(2x²+x-2)
= 6x⁴+3x³-6x²-10x³-5x²+10x+14x²+7x-14
= 6x⁴-7x³+3x²+17x-14
Sally wants to buy a used truck for her delivery business. Truck A is priced at $450 and
gets 25 miles per gallon. Truck B costs $650 and gets 35 miles per gallon. If gasoline costs
$4 per gallon, how many miles must Sally drive to make truck B the better buy?
Answer:
Step-by-step explanation:
If K=tm^(p/q) create a formula for q
The formula for q will be q = p*logm/(logK - logt)
Logarithm
A logarithm is defined as the power to which a number must be raised to get some other values. It is the most convenient way to express large numbers. A logarithm has various important properties that prove multiplication and division of logarithms can also be written in the form of logarithm of addition and subtraction.
Given equation:
[tex]K=tm^{(\frac{p}{q} )}[/tex]
We have to find a formula for q.
Raising the whole equation to the power of q, we get
[tex]K^q=t^qm^{p}[/tex]
We can rewrite it as,
[tex]\frac{K^q}{t^q}=m^p[/tex]
[tex](\frac{K}{t})^q=m^p[/tex]
Operating with logarithm on both sides, we get,
q*log(K/t) = p*logm
q = p*logm/log(K/t) = p*logm/(logK - logt)
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help i don’t get it
answers pls
Answer: x=13°
Step-by-step explanation: We know total amount of degrees in a triangle is 180°. We also know two of the angles' degrees: 39° and 90°. Now, with this info, we set up an equation: (3x+12)+39+90=180. We add 39 and 90 to get 129; then we subtract 129 on both sides of the equation. Our equation should now look like this: 3x+12=51. Subtract 12 on both sides to get: 3x=39. Lastly, divide 3 on both sides to find the value of x.
In the figure below, m<2=43°. Find m<1.
m<1 =
Answer:
137°
Step-by-step explanation:
Given: ∠2 = 43°
Find: ∠1 = ?
Solution:
∠1 + ∠2 = 180°
∠1 = 180° - ∠2
∠1 = 180° - 43°
∠1 = 137°
Please help
Use the information provided to determine the value of x.
Answer:
70°
Step-by-step explanation:
The sum of the interior angles is 180. Subtract the 40 that you know about and you have 140. Since the two sides are equal, the angles opposite them are equal. 140/2 = 70
Reflection and Rotation
A. Preserve
B. Do not Preserve
ABC is
A. Equal to the
B. Twice the
C. Not related to the
D. Three times the
And AC is
A. 8,9, and 13
B. 7,9 and 10
C. 2, 14, and 10
D. 8,9 and 10
Reflection and rotation preserve length , so the perimeter of ΔABC is equal to the perimeter of ΔXYZ. A possible set of values for AB, BC and AC is 7,9 and 10 units.
A rotation is a transformation that occurs when a figure is turned a preset number of degrees around a fixed point (referred to as the center of rotation).
You will currently need geometry software in order to graph a rotation in general. This allows any figure to spin a certain amount of times around any point.A reflection is a kind of transformation that flips the preimage, or original shape, across the line of reflection to produce a new shape (called the image). If the form were to be reversed to graph a reflection, consider what would happen.The given figure is a triangle ABC such that it is transformed by a rotation of 90 °and reflection about y=-5.
The image thus formed will be congruent to the object and will have same sides and perimeter.
Hence the perimeter will be 26 units and the possible length of AB,BC and AC will be 7,9 and 10 units which is the only possible option as a triangle cannot have sides 2 , 14 and 10.(2+10<14)
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vince is cutting a rectangular piece of pegboard to use in his garage for organization. the width of the pegboard is 8 inches less than half the length. the perimeterof the pegboard is 224 inches. what is the length of the pegboard?
The most appropriate choice for linear equation will be given by -
Length of the rectangle is 80 inches
What is linear equation?
At first it is important to know about equation
Equation shows the equality between two algebraic expressions by connecting the two algerbraic expressions by an equal to sign.
A one degree equation is known as linear equation.
Here,
Let the length of the pegboard be l inches
Width of the pegboard = [tex]\frac{1}{2}l - 8[/tex]
Perimeter =
[tex]2(l + \frac{1}{2}l - 8 )\\2(\frac{3l}{2} - 8)\\[/tex]
[tex](3l - 16)[/tex] inches
But the problem,
[tex]3l - 16 = 224\\3l = 224 +16\\3l = 240\\l = \frac{240}{3}\\[/tex]
[tex]l = 80[/tex] inches
The length of the rectangle is 80 inches.
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Adrian has $620 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax.
He buys a new bicycle for $322.09.
He buys 3 bicycle reflectors for $9.54 each and a pair of bike gloves for $22.01.
He plans to spend some or all of the money he has left to buy new biking outfits for $61.82 each.
Use the drop-down menu below to write an inequality representing oo, the number of outfits he can buy while staying within his budget.
Answer:
4 outfits
Step-by-step explanation:
So to find out how much he has left after all his purchases to buy new biking outfits we can add:
9.54 x 3 = 28.62
22.01 + 28.62 + 322.09 = 372.72
Now we subtract his budget by how much he has already spent:
620 - 372.72 = 247.28
He has $247.28 left for outfits so we can divide 247.28 by $61.82 (the amount per outfit) to find how many he can buy:
247.28 / 61.82 = 4
Adrian can buy 4 outfits.