I need help.
If you don't know please don't answer a guess or a silly answer.
If you know for sure please put the answer below and you will get 20 points.
Thank you!
Answers
Answer:
20.5
Step-by-step explanation:
2.50+7.50+.30(35)
Related Questions
Look at the picture for answer choices
Answers
Question 1 of 10
Suppose a normal distribution has a mean of 266 and a standard deviation of
12. What is P(x> 242)?
O A. 0.16
B. 0.475
C. 0.84
D. 0.975
Answers
0.975 is P(x ≥242) with a mean of 266 and standard deviation of 12
The required value of P(x> 242) = is 0.975 for normal distribution. Option D is correct.
The normal distribution has a mean of 266 and a standard deviation of
12. What is P(x> 242) is to determine.
Whata is normal distribution?Normal distributions can be altered to standard normal distributions by the formula:
Z = (X - μ)/σ
Where x is a value from the initial normal distribution, μ is the mean of the initial normal distribution, and σ is the standard deviation of the initial normal distribution. The standard normal distribution is periodically called the z distribution.
Now,
z = X - 266 /12
p(x > 242) = P [(X - 266)/12 ≥ (242 - 266)/12]
p(x > 242) = P [z ≥ -24/12]
p(x > 242) = P [z ≥ -2]
p(x > 242) = P [z ≤ 2]
p(x > 242) = 0.975 (from Z table).
Thus, the required value of P(x> 242) = is 0.975. Option D is correct.
Learn more about normal distribution here:
https://brainly.com/question/12421652
#SPJ2
helopppppppppppp meeeeeeee
Answers
Answer:
The answer is B
Step-by-step explanation:
You purchased an $85,000 home, and the property taxes were $1530. If they make improvements and the house is now valued at $130,000, what will the new property tax be? (McGraw-Hill Companies)
Answers
Answer:
43470
Step-by-step explanation:
purchased of home =$85000
improvement of home =1530=
85000
+1530
=86530
the valued of home =130000=
130000
-86530=
43470
180 people walked in a store. Every 25th person got a free T-shirt. What’s the total number of people who received a t-shirt?
Answers
Answer:
the correct answer is 7
....... hope it helps you
Answer:
[tex]thank \: yo[/tex]
A fair coin is flipped three times. Let X be the number of heads observed. (a) Give both the possible values and probability mass function of X. (b) Find P(X ≥ 1) and P(X > 1). (c) Compute E[X] and V ar(X).
Answers
Answer:
a)
The possible values are 0, 1, 2 and 3.
The probability mass function of X is:
P(X = 0) = 0.125
P(X = 1) = 0.375
P(X = 2) = 0.375
P(X = 3) = 0.125
b)
[tex]P(X \geq 1) = 0.875[/tex], [tex]P(X > 1) = 0.5[/tex]
c) E(X) = 1.5, Var(X) = 0.75
Step-by-step explanation:
For it time the coin is flipped, there are only two possible outcomes. Either it comes up heads, or it comes up tails. Each toss is independent of other tosses. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
The variance of the binomial distribution is:
[tex]V(X) = np(1-p)[/tex]
A fair coin is flipped three times.
This means that [tex]n = 3[/tex]
Fair coin means that it is equally as likely to be heads or tails, so [tex]p = \frac{1}{2} = 0.5[/tex]
a) Give both the possible values and probability mass function of X.
The possible values are from 0 to n, so 0, 1, 2 and 3.
The probability mass function is the probability of each outcome. So
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 0) = C_{3,0}.(0.5)^{0}.(0.5)^{3} = 0.125[/tex]
[tex]P(X = 1) = C_{3,1}.(0.5)^{1}.(0.5)^{2} = 0.375[/tex]
[tex]P(X = 2) = C_{3,2}.(0.5)^{2}.(0.5)^{1} = 0.375[/tex]
[tex]P(X = 3) = C_{3,0}.(0.5)^{3}.(0.5)^{0} = 0.125[/tex]
(b) Find P(X ≥ 1) and P(X > 1).
[tex]P(X \geq 1) = P(X = 1) + P(X = 2) + P(X = 3) = 0.375 + 0.375 + 0.125 = 0.875[/tex]
[tex]P(X > 1) = P(X = 2) + P(X = 3) = 0.375 + 0.125 = 0.5[/tex]
(c) Compute E[X] and Var(X).
[tex]E(X) = np = 3*0.5 = 1.5[/tex]
[tex]Var(X) = np(1-p) = 3*0.5*0.5 = 0.75[/tex]
Can someone help me please!!
Answers
Answer:
the y=4 because the line is going through the y axis and the 4 and the the equation is -2x+4
Step-by-step explanation:
100 points if u help
Answers
The answer is 87.12
Just check it once
Answer:
87.92
that is the answer
3.14(4^2+12)
this is how it looks in normal form without a and b
4^2 is going to be 16
16+12= 28
3.14 times 28= 87.92
Step-by-step explanation:
if 1 inch equals 50 miles
what does 70 inches equal into miles?
Answers
Answer:3500 miles
Step-by-step explanation:
1=50
meaning that we can do 70x50
which equals 3500
Answer:
3,500
Step-by-step explanation:
1in = 50 miles
70 in x 50 miles - 3,500, so therefore
70 in = 3,500 miles
hoped i helped you!
Given h(x) = 2x2 - 5x + 5, find h(-5).
Answers
Answer:
h = 80
Step-by-step explanation:
Billy has a set of wooden boards. Each board is 0.6 meters long. If Billy lays 4 boards end-to-end, how many meters long will the line of boards be?
Answers
Answer:
2. 4 meters long
Step-by-step explanation:
0. 6 times 4 equals 2. 4
2x+3y=5x-y2x+3y=5x−y
Answers
I need some help with this
Answers
Answer:
(3) Median
Step-by-step explanation:
I would say median because it most likely wouldn't be any of the others. Mean would be thrown off with the outlier 0.80. Mode wouldn't really work for this. I don't think standard deviation would work because this isn't coninuous data.
Hope it helps and is correct!
Find the area of the trapezoid.
1 1/2cm
4 cm
3 1/2 cm
Answers
Simplify (3x - 5) - (4x + 6).
-X + 11
x + 11
-X-11
x- 11
Answers
Answer: The given expression (3x − 5) − (4x + 6) = -x - 11.
Step-by-step explanation:
Given : Expression (3x − 5) − (4x + 6).
We have to simplify the given expression.
Consider the given expression (3x − 5) − (4x + 6).
Remove Parentheses ,
we have,
(3x − 5) − (4x + 6) = 3x - 5 - 4x -6
Combining like terms, we have,
LIKE TERMS are terms having same variable with same degree.
here 3x and -4x are like term and -5 and -6 are like terms,
Simplify, we have,
= 3x - 4x - 5 - 6
= -x - 11
Thus, the given expression (3x − 5) − (4x + 6) = -x - 11.
Step-by-step explanation:
hope this helps have a nice day❤️❤️❤️❤️
Answer: The given expression (3x − 5) − (4x + 6) = -x - 11.
Step-by-step explanation:
Given : Expression (3x − 5) − (4x + 6).
We have to simplify the given expression.
Consider the given expression (3x − 5) − (4x + 6).
Remove Parentheses ,
we have,
(3x − 5) − (4x + 6) = 3x - 5 - 4x -6
Combining like terms, we have,
LIKE TERMS are terms having same variable with same degree.
here 3x and -4x are like term and -5 and -6 are like terms,
Simplify, we have,
= 3x - 4x - 5 - 6
= -x - 11
Thus, the given expression (3x − 5) − (4x + 6) = -x - 11.
Step-by-step explanation:
hope this helps have a nice day and god bless u ❤️❤️❤️❤️
find the 7th term in the sequence?
-1,2,-4,8
Answers
A line includes the points (8,5) and (9, – 5). What is its equation in point-slope form?
Answers
Answer:
Step-by-step explanation:
slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]=\frac{-5-5}{9-8}\\\\=\frac{-10}{1}\\\\=-10\\[/tex]
Point-slope form:
y - y1 = m(x - x1)
y - 5 = -10(x - 8)
You wish to determine the GPA of students at your school. Describe what process you would go through to collect a sample if you use a systematic sample.
Answers
Answer:
simple random sampling
Step-by-step explanation:
3x + 1/3y=12
2y=18x+72
Show all work
A no solution
B one solution
C infinity solutions
Answers
Answer:
B one solution
Step-by-step explanation:
3x + 1/3y=12
2y=18x+72; y = 18x/2 +72/2; y =9x+36
3x + 1/3y=12
multiply all through by 3
9x + y = 36
9x + 9x+36 = 36
18x =36-36= 0
x= 0/18 = 0
y =9x+36
y = 9(0) +36 = 0+36= 36
an expression in simplest form pls
Answers
Answer:
(2a)3
Step-by-step explanation:
Hopes This Helps!!
Simplify the following expression by combining like terms.
5x+13−8x can be simplified to
x+
Answers
Answer:
13x+13
Step-by-step explanation:
Answer:
−3x+13
Step-by-step explanation:
HOPE IT HELPED
Mr. Lenz has received several orders for apples at his farm
stand. He needs to know how many people ordered 12
apples so he can fill bags of 12.
Would a dot plot or a histogram be a more appropriate way to display the
data for this situation?
A. A histogram, because Mr. Lenz wants to know all of the data for a
single value
O B. A dot plot, because Mr. Lenz wants to know all of the data for a
single value.
C. A histogram, because Mr. Lenz wants to know how the data fall
into different intervals or ranges.
D. A dot plot, because Mr. Lenz wants to know how the data fall into
different intervals or ranges.
Answers
Answer:
A, Histograms give values where as dot plots are focused on a trend.
Answer:
B
Step-by-step explanation:
I got the test
6. The movie theater sells a bucket of
popcorn, p, for $5.95 each each. Which of
the following equations best represents c, the
total cost of purchasing buckets of popcorn?
A. C = 5.95p
B. p = 5.960
C. C + 5.95 = p
D. p + c = 5.95
Answers
Answer: Pretty sure it’s A. I’m not sure thought that makes the most sense to me.
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
total cost= 5.95(number of popcorn ordered)
Evaluate f(x)=6x2 – 12 when x =-3.
Answers
If I have an equation like 6+3y-4 can i move the 3y to the back to deal with the 6 and the -4?
ex: 6-4+3y?
Answers
11 Ankitesh and his friend Jimmy together sold tickets for a charity show for
13
times as much as Jimmy sold, how much did
3
3800. If Ankitesh sold 1
each of them sell the tickets for?
Answers
Answer:
..................
Step-by-step explanation:
......
For each expression, select all equivalent expressions from the list 1. 24x - 18 A. 6(4x -3) B. 6 C. 4(6x - 4) D. 12x - 9
Answers
Answer:
A
Step-by-step explanation:
Round 54.36 to the nearest tenth
Answers
Answer:
Step-by-step explanation:
54.3
Answer: 54.4
Step-by-step explanation: The 6 rounds the 3 up to 4. If it was 4 (54.4) or below it would be 54.3.
It the end of the day l need this last one
Answers
1) Jorge takes his friends out for smoothies. He buys 5 smoothies and leaves a $3 tip,
paying a total of $23. He wants to know the price of one smoothie.
• price of 5 smoothies: 23 – 3 = 20
1) Which equation shows how to find the price of one smoothie?
20 – 5 = 15
20 : 5 = 4
23 : 5 = 4.60
23 - 5 = 18
Answers
Answer:
15b-x=4
Step-by-step explanation:
i am a smart teacher