Answer:
29.7
Step-by-step explanation:
Is this problem correct?
Answer:
Yes that is correct. B is correct.
Step-by-step explanation:
When you plug 0 in for x, the result is 3.
When you plug 1 in for x, the result becomes 1.
The equation matches up correctly.
f(x) = -2x + 3
#teamtrees #WAP (Water And Plant)
You got it right. Try to substitute x values in there to check your answer.
Here's an example
f(x) = -2x + 3
f(1) = -2(1) + 3 = -2+3 = 1
.
.
.
f(4) = -2 (4) + 3 = - 8 + 3= - 5
Keep up the good work!!
Find the radius of circle
Answer:
40 ft in think
Step-by-step explanation:
Answer: 20 feet
Step-by-step explanation:
radius of a Circe is half of the diameter
40 divided by 2 = 20 feet
Complete parts (a) and (b) below.
The number of dogs per household in a small town
Dogs
0
1
2.
3
Probability 0.650 0.216 0.087
0.026
4
5
0.014
0.009
(a) Find the mean, variance, and standard deviation of the probability distribution
Find the mean of the probability distribution
(Round to one decimal place as needed.)
Answer:
a) The mean of the probability distribution = 0.6
b) The variance of the probability distribution = 0.3
c) The standard deviation of the probability distribution = 0.5
Step-by-step explanation:
a) Data and Calculations:
number of dogs per household in a small town
Dogs Probability Expected Mean Diff Mean Diff.
Value Squared
0 0.650 0 -0.569 0.32376
1 0.216 0.216 -0.353 0.12461
2 0.087 0.174 -0.395 0.15603
3 0.026 0.078 -0.491 0.24108
4 0.014 0.056 -0.513 0.26317
5 0.009 0.045 -0.524 0.27458
The mean = 0.569 (Sum of expected value)
Variance = mean of squared differences = 0.27665 (1.38323/5)
Standard deviation = square root of variance = 0.526 = 0.5
The mean, variance and standard deviation of the considered probability distribution are evaluated to be:
Mean of the distribution = 0.569Variance of the distribution = 0.923 approxStandard deviation of the distribution = 0.96 approxHow to find the mean (expectation) and variance of a random variable?Supposing that the considered random variable is discrete, we get:
[tex]Mean = E(X) = \sum_{\forall x_i} f(x_i)x_i\\\\Variance = Var(X) = (\sum_{\forall x_i} f(x_i)x^2_i) - (E(X))^2\\[/tex]
As standard deviation is positive root of variance, thus,
[tex]\sigma = \sqrt {Var(X)}[/tex]
where [tex]x_i; \: \: i = 1,2, ... ,n[/tex] is its n data values
and [tex]f(x_i)[/tex] is the probability of [tex]X = x_i[/tex]
For this case, let we suppose that:
X = number of dogs per household in the considered town.
Then we have the probability distribution for values of X as:
Number of dogs Probability
0 0.650
1 0.216
2 0.087
3 0.026
4 0.014
5 0.009
Thus, we get:
Mean of X : E(X) = [tex]0 \times 0.650 + 1 \times 0.216 + 2 \times 0087 + 3 \times 0.026 + 4 \times 0.014 + 5 \times 0.009 = 0.569[/tex]
Variance of X:
Var(X) =
[tex](0^2 \times 0.650 + 1^2 \times 0.216 + 2^2 \times 0.087 + 3^2 \times 0.026 + 4^2 \times (0.014)\\ + 5^2 \times (0.009)) - (0.569)^2 \approx 0.923[/tex]
Standard deviation of X = [tex]\sigma = \sqrt {Var(X)} \approx \sqrt{0.923} \approx 0.96[/tex]
Thus, the mean, variance and standard deviation of the considered probability distribution are evaluated to be:
Mean of the distribution = 0.569Variance of the distribution = 0.923 approxStandard deviation of the distribution = 0.96 approxLearn more about expectation of a random variable here:
https://brainly.com/question/4515179
HURRY AND ANSWER ILL GIVE 50 POINTS AND BRAINLIST! HOW YOU WORKED OUT THE PROBLEM MUST BE INCLUDED
ALL FOUR NEED TO BE DONE!
Answer:
Question #12: a. ⅛ b. ³/₂₀
Question #4: 9 ÷ 3 = 3
Question #5: a. 80½ yards² b. $1288.00
Question #9: 1½ inches
Question #8: 16/20
Step-by-step explanation:
I hope this helped!
You are most likely to encounter an irrational number when you are
Answer:
dealing with circles (using pi for circumference, area, arc angle, etc)
Answer:
Well, you can finding the area of a circle
Step-by-step explanation:
cloud is a vegetable grower, has 8 4/15 plots of pechay, 5 1/3 plots of eggplants and 5 2/5 of okra . how many plots of vetable do cloud has?
Answer:
The total plots of vegetable cloud will be: 19
Step-by-step explanation:
From the question statement, it is clear that the cloud has [tex]8\frac{4}{15}[/tex] plots of pechay, [tex]5\frac{1}{3}[/tex] plots of eggplants and [tex]5\frac{2}{5}[/tex] plots of okra.
so, Just add all the plots to get the total plots of the vegetable cloud.
i.e.
[tex]8\frac{4}{15}+5\frac{1}{3}+5\frac{2}{5}=\frac{124}{15}+\frac{16}{3}+\frac{27}{5}[/tex]
[tex]=\frac{124}{15}+\frac{80}{15}+\frac{81}{15}[/tex]
[tex]=\frac{124+80+81}{15}[/tex]
[tex]=19[/tex]
Therefore, the total plots of vegetable cloud will be: 19
Which table contains a set of non-linear ordered pairs?
Answer:
The second option is your answer
Step-by-step explanation:
The functions are not aligned here.
They are not even ordered in a function.
Your answer is the second option.
Answer: The bottom right graph
Step-by-step explanation: The increase in Y values is not consistent so the non-linear ordered pairs are in the bottom right graph.
Hope this helps!
(2(3^2+1)^2÷(5^2×4÷2))^3÷2^4
Answer:
Step-by-step explanation:
Use PEDMAS
P - Parenthesis
Exponents
D - DIvision
M - Multiplication
A - Addition
S - Subtraction
[2 (3² + 1)² ÷ (5²*4÷2)]³÷ 2⁴ = [2 (9 + 1)² ÷ (25*4÷2)]³÷ 2⁴
= [2 (10)² ÷ (25*2) ]³÷ 2⁴
= [2*100 ÷ 50]³÷ 2⁴
= [2*2]³÷ 2⁴
= 4³÷ 2⁴
= 64 ÷ 16
= 4
Help me with this question pleaseee
Answer:
< 1 = 26 degrees
< 2 = 154 degrees
< 3 = 26 degrees
< 4 = 26 degrees
< 5 = 154 degrees
< 6 = 154 degrees
< 7 = 26 degrees
Step-by-step explanation:
Because of angles opposed by the vertex, <2 = 154 degrees
Because of corresponding angles between parallel lines, <5 = <6 = <2 = 154 degrees.
Because of supplementary angles,
< 1 = < 3 = < 4 = < 7 = 180 - 154 = 26 degrees
if a/3 = b/2 then what is the following ratio
a+b/5a
Answer:
1/3
Step-by-step explanation:
a=6
b=4
a+b=6+4=10
5.6=30
10/30=
1/3
I hope that it was helpful
~best wishes
A paper company needs to ship paper to a large printing business. The paper will be
shipped in small boxes and large boxes. Each small box of paper weighs 45 pounds
and each large box of paper weighs 75 pounds. A total of 24 boxes of paper were
shipped weighing 1410 pounds altogether. Write a system of equations that could be
used to determine the number of small boxes shipped and the number of large boxes
shipped. Define the variables that you use to write the system.
A bird flies south. Its distance from its nest, as a function of time, is modeled by y=20x+1.
What statement best describes the function?
A. The function is linear at some points and nonlinear at others.
B. Not enough info to decide.
C. Linear
D. Nonlinear
Answer:
might be c
Step-by-step explanation:
intuition
Answer: c
Step-by-step explanation: the function is linear
Use the law of sines to find side b.
Answer:
83.3
Step-by-step explanation:
I dont get this
find the value of x
Cost of Freon Automobiles built before 1993 use Freon in their air
conditioners. The federal government now prohibits the manufacture of
Freon. Because the supply of Freon is decreasing, the price per pound is
increasing exponentially. Current estimates put the formula for the price per
pound of Freon at p(t) = 17.6(1.25)', where t is the number of years since
2000. Find the price of Freon in 2000 and 2010. How much will Freon cost in
the
year 2025?
9514 1404 393
Answer:
2000: 17.60 per pound2010: 163.91 per pound2025: 4,658.68 per poundStep-by-step explanation:
We assume your formula is intended to be ...
p(t) = 17.6(1.25^t)
__
For t=0, ...
p(0) = 17.6
For t=10, ...
p(10) = 17.6·1.25^10 ≈ 163.91
For t=25, ...
p(25) = 17.6·1.25^25 ≈ 4,658.68
Rachel runs 3.2 miles each weekday and 1.5 miles each day of the weekend. How many miles will she have run in 6 weeks?
!PLEASE HELP!
Find the value of x when the perimeter of a rectangle is 24 meters , the length = x + 3 meters and the width = 2x meters.?
Express in slope form
what is |13| 16 is it = > < ?
Answer:
<
General Formulas and Concepts:
Math
Reading a number lineAlgebra I
|Absolute Value| makes all numbers positiveStep-by-step explanation:
Step 1: Define
|13| = 13
16
Step 2: Compare
16 is greater than 13.
Therefore, |13| < 16.
Answer:
<
Step-by-step explanation:
because the absolute value of |13| is 13 so 13 is less than 16
Can someone please help, ty!!
(Will mark brainliest)
Answer:
Arcadia
Step-by-step explanation:
the line in the box is the median and Arcadia is bigger than Millersburg
2(2x + 3) = -4 + 2(2x + 5)
Answer:
All real numbers are solutions for this problem.
Step-by-step explanation:
how many real solutions does x²+8x+20=0 have?
Answer:
No real solutions
Step-by-step explanation:
Use the discriminant formula, D = b² - 4ac
D = b² - 4ac
Plug in b, a, and c:
D = b² - 4ac
D = (8)² - 4(1)(20)
D = 64 - 80
D = -16
Since the discriminant is negative, there are no real solutions
Since the solution is a complex value, hence the equation has no real solutions
Givne the quadratic expression x²+8x+20 = 0
Factorizing the function
x²+8x+20 = 0
x = -8±√8²-4(20)/2
x = -8±√64-80/2
x = -8±√-16/2
x = -8±4i/2
x = -4±2i
Since the solution is a complex value, hence the equation has no real solutions
Learn more on quadratic equations here:https://brainly.com/question/1214333
Solve for c. a (c – b) = d. d + ab OC= a OC = d - ab 6 d - ab O c = a ab - d о с — a
Answer:
Solving the equation [tex]a (c -b) = d[/tex] for c we get [tex]\mathbf{c=\frac{d+ba}{a} }[/tex]
Step-by-step explanation:
We need to solve the equation [tex]a (c -b) = d[/tex] for c
Solving the given equation:
[tex]a (c -b) = d[/tex]
Divide both sides by a
[tex]\frac{a(c-b)}{a}=\frac{d}{a}\\c-b=\frac{d}{a}[/tex]
Adding b on both sides
[tex]c-b+b=\frac{d}{a}+b\\c=\frac{d}{a}+b\\c=\frac{d+ba}{a}[/tex]
So, solving the equation [tex]a (c -b) = d[/tex] for c we get [tex]\mathbf{c=\frac{d+ba}{a} }[/tex]
what does "x'' equal if 16=x-12
Answer:
x=28
Step-by-step explanation:
16 + 12 = 28
x=28
this is ez
Answer:
28
Step-by-step explanation:
A new company is hiring employees rapidly. Everyday the number of employees doubles in size. If it takes 48 days for the company to be at full capacity, how many days would it take for the company to be at half capacity?
Answer:
It would take the company 47 days to be at half capacity.
Step-by-step explanation:
From the question, it is stated that the number of employees doubles in size everyday. This implies that the current day capacity is equal to the previous day capacity. This can be written in a mathematical form as follows:
Current day capacity = Previous day capacity * 2 ......................... (1)
We can assume that the current day capacity which is 48th day in this question is equal to 100 employees. That is;
Current day capacity = 48th day capacity = 100
Substituting this into equation (1) above and solve for the previous day capacity, we have:
100 = Previous day capacity * 2
Previous day capacity = 100 / 2 = 50
Since 50 is half of 100 and the previous day is 47th day, it therefore implies that It would take the company 47 days to be at half capacity.
Select the correct answer. If 20% of a number is 35, what is 50% of that number?
Which of the following lists does not include all the factors of the number?
4: 1, 2,4
10: 1, 2, 5, 10
5: 1,5
21: 1, 21
Find the diameter of a circle which has an area of 2.7 cm?
Answer:
1.85
Step-by-step explanation:
please mark me brainliest
Answer:
5.94cm²
Step-by-step explanation:
d = 2.75
r = d/2 = 2.75/2 = 1.375
A= πr² = π(1.375)² = 5.94cm²
please mark brainliest
helppp please I will give brainliest
write an equation
Answer:
Step-by-step explanation:
c=100g+50
then plug in g to get c values
Find the value of y in the given square. Only write the number value of y. *
1 point
Answer: y would =4 because the other answers if you plug in 9 with the X you will get 13 and when you plug 4 where the Y is you get 13
Step-by-step explanation: