Which of the following gives an example of
an exponential function?
a. y = 3x^2
b. y = x^-5
c. y = 1.5^x
D. = x^2 - x
The winners of a carnival game draw a ticket from a box to determine their prize. Each winner draws a ticket and places it back into the box before the next draw. Every winner has a 33% chance of getting cotton candy, a 46% chance of getting a shirt, and a 21% chance of getting a key chain.
The game operator wants to simulate what could happen for the next ten winners. So for each winner he generates a random whole number from 1 to 100. The range of values that the game operator can use to represent a winner is 1 to 3. What is the percentage of winners who got a shirt
Answer:
He generates a random whole number from 1 to 3.
Step-by-step explanation:
Each winner has 3 possibilities, gets cotton candy, gets a shirt, or gets a keychain. We can asign each of this possibiltiies a number, 1 for cotton candy, 2 for the shirt and 3 for a keychain. So, for a simulation, its enough to take one of this whole numbers for each winner.
Let the vector v v have an initial point at ( 1 , − 7 ) (1,−7) and a terminal point at ( 3 , − 2 ) (3,−2). Determine the components of vector v . v.
Answer: The vector is < 2, 5 >
==========================================================
Explanation:
Label the initial point (1,-7) as point P and (3,-2) as point Q.
The x coordinate of P is 1The x coordinate of Q is 3This is a change of +2, meaning we move 2 units to the right.
Therefore, the x component of the vector is +2 or simply 2.
The y coordinate of P is -7The y coordinate of Q is -2This is a change of +5 when moving from P to Q. We have moved 5 units up. The y coordinate of the vector is +5 or simply 5.
Overall, the vector is < 2, 5 > which tells the reader "move 2 units to the right and 5 units up.
Refer to the diagram below.
how to find the missing angle when given two sides of a right triangle?
Answer:
Step 1 The two sides we know are Opposite (300) and Adjacent (400).
Step 2 SOHCAHTOA tells us we must use Tangent.
Step 3 Calculate Opposite/Adjacent = 300/400 = 0.75.
Step 4 Find the angle from your calculator using tan-1
Q 06. Payson is thrice as fast as Amen at completing a task. They both pick up a task together, and complete it in 5 days. How many days will Amen take to do it alone? Ops: A. O 10 days B. O 20 days C. O 25 days D. O 15 days
Fraction are ratio of two integers. It will take Amen 20 days to do the task alone
Proporions and fractionsFrom the given question, we have the following information
Let the number of days Amen can take to complete a task be x
If Payson is thrice as fast as Amen at completing a task, then the number of das Payson takes will be 3x
If they both pick up a task together, and complete it in 5 days, then;
1/x + 1/3x = 1/5
Find the LCM
3+1/3x = 1/5
4/3x = 1/5
Cross multiply
3x = 20
Determine the time taken by Amen:
x =20/3
This shows that it will take Amen 20 days to do the task alone
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Use the formula, I = PRT, to find the time if | = $387.50, P = $1,550, and R = 12.5%
Answer:
T = 2
Step-by-step explanation:
Take the given formulaer
I = PRT
And plug in the variables you know (I, P, R)
387.50 = 1,550(.125)T
(12.5% becomes .125 after you divide it by 100, because precents are really just fractions out of 100)
387.50 = 193.75T
T = 2
What is the constant of proportionality shown in the
table?
Answer:
0.5
Step-by-step explanation:
An equation is written as :
y = kxk is the constant of proportionalityTaking the first row data (x = 2, y = 1),
y = kx1 = 2kk = 1/2k = 0.5Answer:
Option A, 0.5
Step-by-step explanation:
Step 1: Determine the slope/proportionality
[tex]Slope = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
[tex]Slope = \frac{1.5-1}{3-2}[/tex]
[tex]Slope = \frac{0.5}{1}[/tex]
[tex]Slope =0.5[/tex]
Answer: Option A, 0.5
What is the area of this triangle?
Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth.
in²
The figure contains a triangle. One side is 13 inches. A second side is 7.5 inches. The angle between the given sides is 94 degrees.
Answer:
Area = 48.6 in²
Explanation:
The area of the triangle can be calculated using the side-angle-side method as follows:
Area = 0.5 * first side * second side * sin(angle included between the two sides)
This rule is illustrated in the attached image.
Now, we have:
first side = 13 in
second side = 7.5 in
The angle included between the two sides = 94 degrees
The given angle is included between the two given sides, therefore, we can apply the above rule to get the area.
Area of triangle = 0.5 * 13 * 7.5 * sin(94)
Area of triangle = 48.63 which is approximately 48.6 in²
Hope this helps :)
The height of the rectangle and the triangle are the same. The base of the triangle is half the base of the rectangle.
What is the area of the composite figure?
A. 225
B. 300
C. 375
D. 450
Step by step explanation: The last answer i wrote was wrong, so i retook the quiz and got 100% and this was right.
Answer:
.C ,375
I HOPE THIS helps i just know i got connect shons
How would I solve I need to know Asap and what is the answer
Answer:
A) 5
Step-by-step explanation:
distance = √(distance between x coordinates² + distance between y coordinates²)
the horizontal distance between the two points is 4
the vertical distance between the two points is 3
to prove this, if you started at Q and went 4 points right and then 3 points up, you would get to P
distance = √(4²+3²) = √25 = 5
3/5 of the students in Süd- class are in chorus. If there are 25 people in her class, how many are in the chorus?
Round to the nearest thousandth, then subtract: 2.87349 1.54324
Answer:
1.33
Step-by-step explanation:
2.87349 rounded to the nearest thousandth is 2.873 because the number next to it (4) is less than 5.
1.54324 rounded to the nearest thousandth is 1.54324 is 1.543 because the number next to it (2) is less than 5.
Then you do 2.873 - 1.543 and that = 1.33. So 1.33 is your final answer :)
Which of the following represents a set of irrational numbers?
A: {√3, √16, √21, √25}
B: {3.1, 1.234..., √36, π}
C: {12π/4, √2/4, 1.121214…, √5 }
D {23.1, 1.234, √36, 4π }
Answer:
C
Step-by-step explanation:
[tex]\text{All other options contain rational numbers, such as} ~\sqrt{36} , \sqrt{25}, \sqrt{16}[/tex]
I need tho know the answer to 9/10 divided by 6/1
Answer: 3/20
Step-by-step explanation:
Inital Equation:
[tex]\frac{9}{10}[/tex] ÷ [tex]\frac{6}{1}[/tex]
Find the Recipricol of 6/1:
It's: 1/6
Multiply the Recipricol of 6/1 (1/6) by 9/10
9/10 x 1/6 = 9/60
Simplify
9/60 = 3/20
Answer: 3/20
Handsome Jack is buying a pony made of Diamonds
Answer:
so what should we do?!?!?!?!¡!?!
Classify each number as rational or irrational. 3.31662479...
Answer:
3.31662479... is irrational
Step-by-step explanation:
The number 3.31662479... is written in a decimal form:
It is a nonterminating decimal (look at the three dots at the end)
and a nonrepeating decimal (no repeating pattern)
So it is irrational.
Answer:
IrrationalStep-by-step explanation:
The given number is :
3.31662479...The three dots at the end of the number indicates that it is non-terminating
Also you see that the digits do not repeat, hence it is also non-repeating
Definition of An Irrational Number
⇒ The decimal expansion of an irrational number is neither terminating nor recurring.
As it satisfies the criteria, the given number is irrational
O is the center of the regular octagon below. Find its area. Round to the nearest tenth
if necessary.
Based on characteristics of regular polygons, the area of the regular octagon with an apothema of 17 units is approximately 239.415 square units. #SPJ1
How to find the area of a regular polygon
A polygon is regular when all sides and central angles have the same length.The area of a regular polygon (A) can be found in terms of the number of sides (n) and the apothema (a), whose length is 17, by using the following formula:
A = 0.25 · n · a² · tan (180/n) (1)
If we know that n = 8 and a = 17, then the area of the regular octagon is:
A ≈ 239.415
Based on characteristics of regular polygons, the area of the regular octagon with an apothema of 17 units is approximately 239.415 square units. #SPJ1
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Which of these is equal to sin 58°?
Answer:
C Cos32
Step-by-step explanation:
Describe a data set that has the same mean, median, and mode.
I not really understanding this question could somebody help
Answer: Okay, so you probably already know this but,
The mean - is the same as the average value of a data set and is found using a calculation. Add up all of the numbers and divide by the number of numbers in the data set.
Add up all of the numbers and divide by the number of numbers in the data set. The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number.
The mode of a data set is the number that occurs most frequently in the set. To easily find the mode, put the numbers in order from least to greatest and count how many times each number occurs. The number that occurs the most is the mode!
Step-by-step explanation:
In a perfectly symmetrical distribution, the mean and the median are the same. This example has one mode (unimodal), and the mode is the same as the mean and median. In a symmetrical distribution that has two modes (bimodal), the two modes would be different from the mean and median.
hope this helps you!!
Answer:
One of the many examples is {0, 0, 0, 0, 0}
Step-by-step explanation:
The mean is the average of a data set.
The median is the number in the middle (or between the 2 middle numbers) of a data set that is placed from least to greatest.
The mode is the value that shows up the most times in the data set.
A few examples of a set with the same mean, median, and mode could be any number repeated in a data set:
{0, 0, 0, 0, 0}
This would work because the mean is 0, the median is 0, and the mode is 0.
Is 3,978×-32 positive or negative
Answer:
negative
Step-by-step explanation:
A positive times a negative is a negative
Law of Cosines
HELP!!!!!
Answer:
[tex]\displaystyle 21 \approx c[/tex]
Explanation:
Solving for Angles
[tex]\displaystyle \frac{a^2 + b^2 - c^2}{2ab} = cos\angle{C} \\ \frac{a^2 - b^2 + c^2}{2ac} = cos\angle{B} \\ \frac{-a^2 + b^2 + c^2}{2bc} = cos\angle{A}[/tex]
Do not forget to use [tex]\displaystyle arccos[/tex] or [tex]\displaystyle cos^{-1}[/tex]towards the end, or the result will be thrown off.
Solving for Edges
[tex]\displaystyle b^2 + a^2 - 2ba\:cos\angle{C} = c^2 \\ c^2 + a^2 - 2ca\:cos\angle{B} = b^2 \\ c^2 + b^2 - 2cb\:cos\angle{A} = a^2[/tex]
Take the square root of the result in the end, or you will throw yourself off.
Well, let us get to work:
[tex]\displaystyle 13^2 + 29^2 - 2[13][29]cos\:41 = c^2 \\ 169 + 841 - 754cos\:41 = c^2 \\ 1010 - 754cos\:41 = c^2 \\ \\ \sqrt{440,94897651...} = \sqrt{c^2} \\ 20,99878512... = c \\ \\ \boxed{21 \approx c}[/tex]
I am joyous to assist you at any time.
A teacher writes the name of each of her 25 students on a slip of paper and places the papers in a box. To call on a student,
she draws a slip of paper form the box. Each paper is equally likely to be drawn, and the papers are replaced in the box
after each draw.
What is the probability of calling on the same student twice in a row?
a. 0.0016
c.
0.56
b. 0.36
d.
0.04
Please select the best answer from the choices provided
the answer would be 0.56
Answer:
a: 0.0016
Step-by-step explanation:
Got it right on the test.
Hope this helps :)
9876x 96- 703
WILL MARK BRAINLEST
Answer:
947393
Step-by-step explanation:
The vertices of a rectangle are located at (2, 5), (4, 3), (-2, -3) and (-4, -1).
What is the approximate perimeter of the rectangle?
Answer:
8
Step-by-step explanation:
P=2(l+w)=2·(1+3)=8 The length was 1 and the width was 3.
Beth currently brings in an annual salary of $37,000 and anticipates a raise of 5% every year. What will her salary be in 14 years? If necessary, round your answer to the nearest cent.
Beth salary in 14 years would be $62900.
What is the simple interest?Simple interest is the borrowing amount added only to the principal amount.
Given, Beth currently brings in an annual salary of $37,000 and anticipates a raise of 5% every year.
To find the interest rate:
The formula to calculate the simple interest is;
S.I. = P x T x R / 100 ,
Where S.I. is simple interest , P is principal amount, T is time period and R is interest rate in a year.
And according to the question,
P = 37000, T = 14 years and R = 5%
Substituting all the values to the formula,
S.I. = P x T x R / 100
S.I. = 37000 x 14 x 5 / 100
= 25900
Beth final salary = principal amount + interest rate
= 37000 + 25900
= 62900
Therefore, Beth salary after 14 years is $62900.
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Please help on math.
Answer:
255cm²
Explanation:
To find the area of the triangle we must us a formula which is base x height ÷ 2 divide. So on the left side it is 17 cm and on the right without the triangle it is 10 so the triangle is 7cm tall. Next on the bottom without the triangle it is 22 and with it is 12 so the base is 10 now we multiply them which will be 70 then divide it by 2 which is 35cm².
And dont forget the squared!!
I have NO IDEA how to do! Please help with this one!!!! 50 pts
[tex]\displaystyle \int \dfrac{dx}{5x^2 -10x +15}\\\\\\=\displaystyle \int \dfrac{dx}{5(x^2-2x+3)}\\\\\\=\dfrac 1 5 \displaystyle \int \dfrac{dx}{x^2-2x+3}\\\\\\=\dfrac 15 \displaystyle \int \dfrac{dx}{x^2 -2x +1^2 -1 +3}\\\\\\=\dfrac 15 \displaystyle \int \dfrac{dx}{(x-1)^2+2}\\\\\\=\dfrac 15 \displaystyle \int \dfrac{du}{u^2 +\left(\sqrt 2 \right)^2}~~~~~~~~~;[x-1 =u \implies dx = du]\\\\\\\\[/tex]
[tex]=\dfrac 1 {5\sqrt 2} \tan^{-1} \left( \dfrac u{\sqrt 2}\right)+C~~~~~~;\left[\displaystyle \int \dfrac{dx}{a^2 +x^2} = \dfrac 1a \tan^{-1} \left( \dfrac xa \right) +C\right]\\\\\\=\dfrac{1}{5\sqrt 2} \tan^{-1} \left( \dfrac{x-1}{\sqrt 2}\right)+C[/tex]
In the accompanying diagram, angle ACD is an exterior angle of triangle ABC, angle A =3x, angle ACD is =5x, and angle B=50. What is the value of x ?
The value of x in the triangle ABC is 25.
How to find angles in a triangle?The interior angles of the triangle are given as m∠A = 3x and m∠B = 50°.
The exterior angle of the triangle is given as m∠ACD = 5x.
The sum of angle in a triangle is equals to 180 degrees. Therefore,
3x + 50 + (180 - 5x) = 180
3x + 50 - 5x + 180 = 180
3x - 5x + 50 + 180 = 180
-2x + 230 = 180
subtract 230 from both sides
-2x + 230 - 230 = 180 - 230
-2x = -50
divide both sidesby -2
-2x / -2 = -50 / -2
x = 25
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9) Center: (-2,9) Point on Circle: (-5, 18)
Answer:
[tex](x+2)^2+(y-9)^2=[/tex] 90
Step-by-step explanation:
The centre is (-2,9) so the first part of the equation will be (x+2)^2 + (y-9)^2 and to get the second half, you know the point on the circle which you can use to find the radius. So the triangle formed would be 3 long, 9 high and using Pythagoras you can do:
[tex]3^2+9^2=r^2[/tex]
9+81= [tex]r^2\\[/tex]
90 = [tex]r^2[/tex]
and this equation ends with r^2 so you can substitute that back into the equation so together it will be
[tex](x+2)^2+(y-9)^2=[/tex] 90
How do you find total pension expense?
Answer:
Total periodic pension costs (TPPC) is equal to the contributions plus change in the pension liability during the year. Each period, the periodic pension cost is recognized in profit or loss (P&L) and/or in other comprehensive income (OCI).