Answer:
Step-by-step explanation:
i do not see the photo
Write a polynomial function in standard form with given zero x=1,-2,-7
Answer:
f(x) = x³ + 8x² + 5x - 14
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Terms/Coefficients/DegreesExpand by FOIL (First Outside Inside Last)Binomial RootsStep-by-step explanation:
Step 1: Define
Zeros x = 1, -2, -7
Step 2: Find Polynomial
Rewrite zeros: f(x) = (x - 1)(x + 2)(x + 7)Expand [FOIL]: f(x) = (x² + 2x - x - 2)(x + 7)Combine like terms (x): f(x) = (x² + x - 2)(x + 7)Expand [Distribute]: f(x) = x³ + x² - 2x + 7x² + 7x - 14Combine like terms (x²): f(x) = x³ + 8x² - 2x + 7x - 14Combine like terms (x): f(x) = x³ + 8x² + 5x - 14Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.15 and a standard deviation of 1.52. Using the empirical rule, what percentage of American women have shoe sizes that are less than 11.19
Answer:
97.5% of American women have shoe sized less than 11.19
Step-by-step explanation:
Here, we want to use the empirical rule to find the percentage of women with shoe sizes less than 11.19
The first thing we shall do here is to find the z-score
Mathematically, that will be calculated using the formula;
z = (x-mean)/SD
z = (11.19-8.15)/1.52
z = 2
We can see that the given value is 2 standard deviation away to the right of mean
So, we want to get the percentage that is between the mean and two standard deviations away from it using the empirical rule
So according to the empirical rule
The percentage will be
100-2.35-0.15
= 100-2.5 = 97.5%
Please help! You get all my points!
Answer: 28269
Step-by-step explanation:
I used a calculator, but Callie messed up when instead of writing 120 (3*4), it should've been 1200 because u add a 0 every time you go down.
Hope this helps :)
Steven earns extra money babysitting. He charges $37.00 for 4 hours and $55.50 for 6 hours. Enter an equation to represent the relationship. Let x represent the number of hours Steven babysits and y represent the amount he charges.
Answer:
Step-by-step explanation:
3.2
A local little league has a total of 60 players, of whom 40% were left handed. How many left handed players were there?
Answer:
24
Step-by-step explanation:
60 x 0.4 = 24 players
The waiting time for a bus has a uniform distribution between 2 and 13 minutes. What is the probability that the waiting time for this bus is less than 4.5 minutes on a given day
Answer: 0.2273
Step-by-step explanation:
Probability density function for uniform distribution is given by :-
[tex]f(x)=\dfrac{1}{b-a}[/tex], where x is uniformly distributed in [a,b].
Let x denotes the waiting time for this bus.
Given : The waiting time for a bus has a uniform distribution between 2 and 13 minutes.
Probability distribution function of x for interval [2,13] will be :-
[tex]f(x)=\dfrac1{13-2}=\dfrac{1}{11}[/tex]
Required probability : P(x<4.5) = [tex]\int^{4.5}_{2}f(x)\ dx[/tex]
[tex]=\int^{4.5}_{2}\dfrac1{11}\ dx\\\\=\dfrac1{11}[x]^{4.5}_{2}\\\\ = \dfrac1{11}(4.5-2)\\\\=\dfrac1{11}(2.5)\approx0.2273[/tex]
Hence, the probability that the waiting time for this bus is less than 4.5 minutes on a given day = 0.2273
Select the correct answer. You're given a side length of 7 centimeters. How many equilateral triangles can you construct using this information? (A. 0) (B. 1) (C. 2) (D. 3)
Answer:
The answer is B.1
2)
Write an equivalent form of the exponential
expression:
(x4)3
Help solve for X
Please ignore the other scribbles in pencil.
Thanks
Answer:
The correct answer is X=5
I'm 10000000000% sure
Answer:
x = 5
Step-by-step explanation:
First, to get rid of the fraction, multiply both sides of the equation by x.
— (14.8/x + 2.4) * x = 5.36 * x
— 14.8 + 2.4x = 5.36x
Next, subtract 2.4x from both sides of the equation.
— 14.8 + 2.4x - 2.4x = 5.36x - 2.4x
— 14.8 = 2.96x
Now, divide both sides of the equation by 2.96.
— 14.8/2.96 = 2.96x/2.96
— 5 = x
The next two terms are
and
Answer:
The next two terms are 92 and 105.
Step-by-step explanation:
79 + 13 = 92
92 + 13 = 105
Subtract: 9-7
Subtracting 9-7=2
Answer: 2
Step-by-step explanation: add 2 to 7 you get 9
Please help me answer this
Explain you’re answer
Will give braisnlt
Answer:
Concept: Math Analysis
So we want the cost of a 8 × 10 Notice the price distribution So 1.50Help me please I’m new to this
Answer:
I believe it's irrational, Integer, and Whole Number
Note: I'm a bit rusty lol
Hope this helps you out! Have a great rest of your day! :)
The architects side view drawing of a saltbox-style house shows a post that supports the roof ridge. The support post is 10 ft tall. How far from the front of the house is the support post positioned?
Answer:
The support post positioned 23 feet far from the front of the house
Step-by-step explanation:
According to Pythagoras Theorem
(Hypotenuse)² = (Base)² + ( Perpendicular)²
We need to find Base so arranging the equation will give us
(Base)² = (Hypotenuse)² - ( Perpendicular)²
Taking under root on both sides
Base = √(Hypotenuse)² - ( Perpendicular)²
Base = √ (625 - 100)
Base = √525
Base = 23 feet
The high school theater is putting on a production of their annual shows. The first night they brought in $4200. They are charging $8 for each adult ticket and $5 for each student ticket. The theater seats 800 people but due to the pandemic they can only havd 75% capacity. How many students and adult tickets did they sell?
PLEASE HELP
Answer:
75 student tickets and 525 adult tickets
Step-by-step explanation:
Evaluate y3 if y = 4 what is the answer
Answer: y3 = y= 4. 4 x3 =12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
you would replace y with 4 and that leaves you with
(4)3= 12
Good luck have a good rest of your day!
PLEASE ANSWER ASASP!!!!!!!!!!!!
Which of the following are equivalent to 3(p + 2)?
a. 6 + 3p
b. 3p + 2
c. 5p
d. 9p
Answer:
a) 6 + 3p
Step-by-step explanation:
Use distributive property: a*(b + c) = a*b + a*c
3(p + 2) = 3*p+ 3*2
= 3p + 6
Answer:
b. 3p + 2
Step-by-step explanation:
Complete the table part 1.
Answer:
answer will multiple of 6 till 5 because each 10 contain 6 so ans is 6,12,18,24,30
please help!!! geometry
both angles are the same ! so
20x + 60 = 30x + 20
10x = 40
x = 4
and then substitute x back in
20(4) + 60 = 140
i think this is right >__<
(4x-8)-(-3x + 10)
HELP
Answer:
7x-18
Step-by-step explanation:
brainlliest plz
What is the gear ratio of a 10 tooth gear driving a 40 tooth gear?
Answer:
4
Step-by-step explanation:
40/10=4
Answer: 4
Step-by-step explanation:
40/10=4
Enter an expression equivalent to (-3xy^3)(5x^4y^4) in the form Ax^my^n.
Answer:
[tex]-15x^5y^7[/tex]
Step-by-step explanation:
Given
[tex](-3xy^3)(5x^4y^4)[/tex]
Required
Express as [tex]Ax^my^n[/tex]
[tex](-3xy^3)(5x^4y^4)[/tex]
Expand each factor in both brackets
[tex](-3 * x * y^3) (5 * x^4 * y^4)[/tex]
Remove brackets
[tex]-3 * x * y^3*5 * x^4 * y^4[/tex]
Bring like factors together
[tex]-3 *5* x * x^4* y^3 * y^4[/tex]
[tex]-15* x * x^4* y^3 * y^4[/tex]
Apply law of indices
[tex]-15* x^{1+4}* y^{3+4[/tex]
[tex]-15* x^5* y^7[/tex]
[tex]-15x^5y^7[/tex]
Done
The expression equivalent to (-3xy^3)(5x^4y^4) in the form Ax^my^n [tex]\mathbf{=-15x^{5} y^{7}}[/tex]
Indices are algebraic expressions usually raised to a power of a given number or term.
Given that:
(-3xy^3)(5x^4y^4)To express the given indices in terms of Ax^my^n, we need to open the two brackets and multiply the corresponding variables carrying the same terms.
i.e.
[tex]\mathbf{=(-3xy^3)(5x^4y^4) }[/tex]
[tex]\mathbf{=((-3\times 5)x^{1 +4}) ( y)^{3+4}}[/tex]
[tex]\mathbf{=-15x^{5} y^{7}}[/tex]
Learn more about indices here:
https://brainly.com/question/20411226
A pizza will be split among 3 friends.
What amount of pizza will each
friend receive?
Answer:
1/3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Assuming this pizza has 8 slices, which is about average solve this problem using division.
Eight slices divided by three friends
8/3
If rounding to whole slices, each friend could have two pieces. If not, each friend could have 2.667 pieces.
Find the value of x in the triangle shown below.
7
3
2
Choose 1 answer:
(A) =
21
X = 158
B
© X = 10
OX= 58
I NEED HELP ASAP IN KHAN ACADEMY!
Answer:
its root 58 ,h=√psquare + b square =√7square+3square=root58
12 + x + 13 what is x
Answer:
25x
Step-by-step explanation:
Answer:
You cant find the value of x but here is the simplified version :
x+25
Gabriel brings 25 cupcakes to share with his classmates at school. At the end of the day, he has 3 cupcakes remaining. Write a fraction representing the remaining cupcakes to the original amount of cupcakes.
Answer:
3/25 remaining cupcakes
Step-by-step explanation:
Calculate (Round two decimal places for final answer):4 gallons (gal) = ___________ liters (L).
Answer:
I believe your answer is 15.14 liters
A farmer owns 24 acres of land. He plans to use 6 acres for an entrance into the farm and divide the remaining land into 1/3 acre lots. How many 1/3 acre lots will he have?
Answer:
54 one-third acre lots
Step-by-step explanation:
24 - 6 = 18
18 ÷ 1/3 = 18 × 3 = 54
Answer: 54
Step-by-step explanation:The remaining portion to be divided into 1/3 acre lots is the difference between the number of acres owned by the farmer and the number of arces used for the entrance. This difference is
= 24 arces - 6 arces
= 18 acres
These acres is to be divided into 1/3 arce then the number of 1/3 arce loits that will be available
= 18 ÷ 1/3
= 18 × 3/1
= 54
PLEASE HELP PLATO ALGEBRA 2 Select ALL the correct answers.
Answer:
I think B and C
Step-by-step explanation:
Sorry if I got rong but..
hopes it helps
There are 120 students at Francis Howell North High School. Mr. Willott conducts a poll that asks 20 randomly selected students how many hours of sleep they got last night. They find that the mean amount of sleep is 6.7 hours. The population standard deviation is σ = 2 hours. Can we estimate the standard deviation of the sampling distribution of means by using σ divided by the square root of n (2/sqrt(20) = 0.557 hours)?
Answer:
Yes
Step-by-step explanation:
The central limit theorem says that If a random variable X from a population has mean u and finite variance σ² , then the sampling distribution of the sample mean X~ approaches a normal distribution with mean u and variance σ²/n as the sample size n approaches infinity.
It is interesting to note that we have neither assumed that the distribution of X is continuous nor we have said anything about the shape of the distribution , whereas the limiting distribution of X is continuous and normal. Thus the distribution of the sample means regardless of the shape of the population having a finite variance , is approximately normal with mean u and variance σ²/n .
Therefore
(standard deviation/ √sample size)²= variance / n
2/ √20
= 2/4.472
=0.44721
The sampling distribution of X` is therefore approximately normal with mean ux=u and σx =σ/n
Yes, we estimate the standard deviation of the sampling distribution of means by using σ divided by the square root of n and this can be determined by finding the mean and standard deviation for the distribution of the sample means.
Given :
There are 120 students at Francis Howell North High School. Mr. Willott conducts a poll that asks 20 randomly selected students how many hours of sleep they got last night.They find that the mean amount of sleep is 6.7 hours.The population standard deviation is σ = 2 hours.The mean for the distribution of the sample means is given by:
[tex]\mu_x = \mu[/tex]
[tex]\mu_x = 6.7[/tex]
The standard deviation for the distribution of the sample means is given by:
[tex]\rm \sigma_x = \dfrac{\sigma}{\sqrt{n} }[/tex]
[tex]\sigma_x = \dfrac{2}{\sqrt{20} }[/tex]
[tex]\sigma_x = 0.44721[/tex]
Yes, we estimate the standard deviation of the sampling distribution of means by using σ divided by the square root of n.
For more information, refer to the link given below:
https://brainly.com/question/17716064