Answer:
I Think it is A
Step-by-step explanation:
It is a because 9×7=63
The probability of raining today is equal to the probability of raining on Saturday, which is 0.09.
To find the probability of raining today, given that today is Saturday and the probability of raining on Saturday is 0.09, we can use conditional probability.
The conditional probability of an event A occurring, given that event B has already occurred, is denoted as P(A|B) and is calculated as follows:
P(A|B) = P(A ∩ B) / P(B)
In this case, event A represents the event of raining today, and event B represents the event of it being Saturday.
We are given that P(B) = 0.09 (the probability of raining on Saturday). Since today is Saturday, we know that event B has occurred.
Now, let's assume that event A and event B are independent. This means that the probability of raining today (event A) is not affected by whether it is Saturday (event B) or not.
Under the assumption of independence, we can say that P(A ∩ B) = P(A) * P(B).
Given that P(B) = 0.09, we can substitute these values into the conditional probability formula:
P(A|B) = (P(A) * P(B)) / P(B)
= P(A)
Therefore, the probability of raining today is equal to the probability of raining on Saturday, which is 0.09.
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Plz help me well mark brainliest if correct!!...
Answer:
C
Step-by-step explanation:
The double step class is in studio b
Answer:
C) The double step class is in studio A.
Step-by-step explanation:
this isn’t a question but i just wanted to tell everyone you all are doing great. this year has been hard and everyone is working as hard as they mentally can. i’m so proud of all of you. don’t forget to take breaks and rest.
Thank you so much friend.
I think a advantage of this will be that we will be able to tell our grandchildren about how we survived the pandemic, just like our grandparents talk about World War. Lol.
A circular pool has a footpath around the circumference. The equation x2 + y2 = 2,500, with units in feet, models the
outside edge of the pool. The equation x2 + y2 = 3,422.25, with units in feet, models the outside edge of the footpath.
What is the width of the footpath?
8.5 ft
17 ft
O 30 ft
O 58.5 ft
Answer:A. 8.5 ft
Step-by-step explanation:
edge2021
The width of the footpath is 8.5 feet.
What is radius in a circle?Radius of a circle is the distance from the center of the circle to any point on it's circumference.
given equation is :x² + y² = (r)²
We have for the pool:
x² + y² = 2500 or x² + y² = (50)²
So, for the outside edge of the footpath
x² + y² = 3422.25 or x² + y² = (58.5)²
So, we find the radius of each circumference
For the outside edge of the poolr₁ = 50 feet
For the outside edge of the footpathr₂ = 58,5 feet
Then the width of the footpath is58,5 - 50 = 8,5 feet
Thus, width of the footpath is 8.5 feet.
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Glenn bought a $7 coffee and 10 granola bars at the airport. If he spent a total of $24, how much did each granola bar cost?
Answer:
1.7$
Step-by-step explanation:
To solve this, first subtract the coffee from the total cost, and then divide the cost by the amount of granola bars.
So first, subtract 7$ from 24(the coffee from the total cost):
24-7
=
17
Next divide the 17$ by the 10 granola bars:
17/10
=
1.7
So we know that the answer is each granola bar cost 1.7$
Hope this helps!
Please answer I need this AS SOON AS POSSIBLE A
Answer:
When using desmos I got y=x^{2}-4x+3 (the 2 is an exponent btw) I inserted a picture. I hope this helped
Step-by-step explanation:
Someone plz help me!..
Directions: Solve these equations by using addition. You will need to use your fraction and decimal skills to solve these equations.
A number increased by 1 2/3 is equal to 8
Answer:
6 and 1/3
Step-by-step explanation:
8 minus 1 is 7 and 7 minus 2/3 is 6 1/3. Therefore the number you started with is 6 and 1/3. Hope this helps :)
A roller coaster begins at ground level, rises 63 feet, then falls 71 feet. What is the
elevation of the roller coaster, relative to the ground? *
134 feet
8 feet
- 8 feet
- 134 feet
Answer:
-8 feet
Step-by-step explanation:
63 - 71 = -8
Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a nutritionist analyzed the percentage of saturated fat for a sample of 6 brands of stick margarine (solid fat) and for a sample of 6 brands of liquid margarine and obtained the following results: Exam Image Exam Image We want to determine if there a significant difference in the average amount of saturated fat in solid and liquid fats. What is the test statistic
Answer:
[tex]t = 31.29[/tex]
Step-by-step explanation:
Given
[tex]\begin{array}{ccccccc}{Stick} & {25.8} & {26.9} & {26.2} & {25.3} & {26.7}& {26.1} \ \\ {Liquid} & {16.9} & {17.4} & {16.8} & {16.2} & {17.3}& {16.8} \ \end{array}[/tex]
Required
Determine the test statistic
Let the dataset of stick be A and Liquid be B.
We start by calculating the mean of each dataset;
[tex]\bar x =\frac{\sum x}{n}[/tex]
n, in both datasets in 6
For A
[tex]\bar x_A =\frac{25.8+26.9+26.2+25.3+26.7+26.1}{6}[/tex]
[tex]\bar x_A =\frac{157}{6}[/tex]
[tex]\bar x_A =26.17[/tex]
For B
[tex]\bar x_B =\frac{16.9+17.4+16.8+16.2+17.3+16.8}{6}[/tex]
[tex]\bar x_B =\frac{101.4}{6}[/tex]
[tex]\bar x_B =16.9[/tex]
Next, calculate the sample standard deviation
This is calculated using:
[tex]s = \sqrt{\frac{\sum(x - \bar x)^2}{n-1}}[/tex]
For A
[tex]s_A = \sqrt{\frac{\sum(x - \bar x_A)^2}{n-1}}[/tex]
[tex]s_A = \sqrt{\frac{(25.8-26.17)^2+(26.9-26.17)^2+(26.2-26.17)^2+(25.3-26.17)^2+(26.7-26.17)^2+(26.1-26.17)^2}{6-1}}[/tex]
[tex]s_A = \sqrt{\frac{1.7134}{5}}[/tex]
[tex]s_A = \sqrt{0.34268}[/tex]
[tex]s_A = 0.5854[/tex]
For B
[tex]s_B = \sqrt{\frac{\sum(x - \bar x_B)^2}{n-1}}[/tex]
[tex]s_B = \sqrt{\frac{(16.9 - 16.9)^2+(17.4- 16.9)^2+(16.8- 16.9)^2+(16.2- 16.9)^2+(17.3- 16.9)^2+(16.8- 16.9)^2}{6-1}}[/tex]
[tex]s_B = \sqrt{\frac{0.92}{5}}[/tex]
[tex]s_B = \sqrt{0.184}[/tex]
[tex]s_B = 0.4290[/tex]
Calculate the pooled variance
[tex]S_p^2 = \frac{(n_A - 1)*s_A^2 + (n_B - 1)*s_B^2}{(n_A+n_B-2)}[/tex]
[tex]S_p^2 = \frac{(6 - 1)*0.5854^2 + (6 - 1)*0.4290^2}{(6+6-2)}[/tex]
[tex]S_p^2 = \frac{2.6336708}{10}[/tex]
[tex]S_p^2 = 0.2634[/tex]
Lastly, calculate the test statistic using:
[tex]t = \frac{(\bar x_A - \bar x_B) - (\mu_A - \mu_B)}{\sqrt{S_p^2/n_A +S_p^2/n_B}}[/tex]
We set
[tex]\mu_A = \mu_B[/tex]
So, we have:
[tex]t = \frac{(\bar x_A - \bar x_B) - (\mu_A - \mu_A)}{\sqrt{S_p^2/n_A +S_p^2/n_B}}[/tex]
[tex]t = \frac{(\bar x_A - \bar x_B) }{\sqrt{S_p^2/n_A +S_p^2/n_B}}[/tex]
The equation becomes
[tex]t = \frac{(26.17 - 16.9) }{\sqrt{0.2634/6 +0.2634/6}}[/tex]
[tex]t = \frac{9.27}{\sqrt{0.0878}}[/tex]
[tex]t = \frac{9.27}{0.2963}[/tex]
[tex]t = 31.29[/tex]
The test statistic is 31.29
how to solve this question
What is the answer please help no links
Answer:
A: y = 9.5x + 22.5
Step-by-step explanation:
The number of students who enroll in a psychology course is a Poisson random variable with mean 105. The professor in charge of the course has decided that if the number enrolling is 119 or more, the course will be taught in two sections, whereas if fewer than 119 students enroll, the students will be all taught together in a single section. What is the probability that the professor will have to teach two sections?
Answer:
The answer is "0.096".
Step-by-step explanation:
In this question, the X is a number of the students who enroll in a psycholog y course, follows a Poisson distribution with mean [tex]= \lambda= 105[/tex]
[tex]\therefore P(X=x)=\frac{e^{-105} 105^{x}}{x!},(x=0,1,2,3.....)\\\\\to p(teach\ two \ sections) = P(X \geq 119)\\\\=1-P(X<119)\\\\=1-\sum_{x=0}^{118}P(X=x)\\\\=1-\sum_{x=0}^{118}\frac{e^{-105} 105^{x}}{x!}\\\\=0.0956747863537\\\\=0.096\\[/tex]
Solve the system with elimination. 2x+2y=4 x+3y=6
Answer:
Point Form:
(0,2)
Equation Form:
x=0,y=2
Step-by-step explanation:
Find Area of the triangle
Answer:
A = 0.5 × [ sqrt(17^2 - 15^2) ] × 15 + 0.5 × [ sqrt(25^2 - 15^2) ] × 15 = 210 in^2
Which graph below is a tree graph?
I think that it is the last one
Hope this helps
Answer: D
Step-by-step explanation:
3) A private golf course offers cart rentals for $22 and a round of golf at $1.35 per hole for non-members. After purchasing a box of golf balls at $14.95 and a bottle of Gatorade for $3.25, your total cost was $64.50. How many holes of golf were you able to complete?
Answer:
18 round of golf
Step-by-step explanation:
r = # rounds of golf
(22 + 14.95 + 3.25) + 1.35r = 64.50
40.20 + 1.35r = 64.50
1.35r = 24.30
r = 18
Answer:
18 kkkkkkkkkkkkkkkkkkkk
Math To Do, Ready
login ready.com/student/dashboard/home
Park View Apartments has 2 buildings. Each building has 3 floors. Each floor has
16 windows. What is the total number of windows in the Park View Apartment
buildings?
Answer:
(probably) 96
Step-by-step explanation:
2 buildings, 3 floors, 16 windows.
first, 16x3=48
and then 48x2=96
So, the total number is 96.
Which graph represents the compound inequality?
-3
-5 -4 -3 -2 -1 0 1
2
3 4
5
-5 4 -3 -2 -1 0 1
2 3 4 5
-5 4 -3 -2 -1 0 1
2
3
4
5
OG
-5 4 -3 -2 -1 0 1 2 3 4 5
Answer:
4th option
Step-by-step explanation:
open circle means more than or less than
n is more than -3 but less than 1
Can y’all help me?!
Answer:D
Step-by-step explanation:
3 is on the positive x side and 2 is on the negative y side so it will be (3,-2)
find all six trig ratios for the ordered pairs:
a. (2,-5)
b. (-9,-12)
Answer:
im nice at ping pong
Step-by-step explanation:
29. For all values of X,
x^2+2x+4 = (x + 2)^2 + a(x+2) + b,
where a and b are constants. What is the value
of a?
(A) -2
(b) - 1
(c) 0
(d) 1
On a scale of 1-10 how cool am I?
your pretty cool, hmmmm maybe a 9.4/10
Find the circumference of the circle.
Answer:
72 .22 inches is the answer bro
Answer:
72.22 inches
Step-by-step explanation:
Formula for circumference given diameter is:
c = πd
If you use 3.14 for pi, you get 72.22 inches:
c = 3.14(23)
c = 72.22
-2a2-4a+16 cuando a=-2
Answer:
0
Step-by-step explanation:
-2 * -2 = 4
4 * 2 = 8
4 * -2 = -8 + 16 = 8
8-8 = 0
Help
The circle graph shows the percent of time different people took turns driving during a 20-hour road trip.
How many hours did Dan drive?
==========================================================
Explanation:
Add up the percentage values:
25+20+6+6+6 = 63
This means 63% of the trip was driven by anyone but Dan. That must mean 100-63 = 37% of the trip is how much Dan drove.
Apply this percentage to the 20 hour duration
37% of 20 = 0.37*20 = 7.4 hours represents how long Dan drove.
extra notes:
7.4 hours = 7 hours, 24 minutes because 0.4 hours = 0.4*60 = 24 minutes7.4 hours = 7 hrs + 24 min = 7*60+24 = 444 minutesWhich function does not have a vertical asymptote
Answer:
[tex]y=\frac{5x}{1+2x^2}[/tex]
Step-by-step explanation:
[tex]Option ~A ~ does ~ not ~ have ~a ~ vertical~ asymptote[/tex]
--------------------------
Hope it helps...
Have a great day!!
Answer:
Step-by-step explanation:
answer is d
The first, second and fourth terms of
a proportion are 16, 24 and 54
respectively. Then the third term is:
Answer: 36
Step-by-step explanation:
This is a geometric progression. The formula for a geometric progression is given as:
= ar^n-1
where
a = first term = 16
r = common ratio = 24/16 = 1.5
n = 3
Therefore, the 3rd term will be:
= ar^n-1
= 16 × 1.5^3-1
= 16 × 1.5²
= 36
Therefore, the third term of the progression is 36.
Find the measure of m∠A (inside the triangle).
Find the measure of m∠B.
Find the measure of m∠C.
Answer:
85 degrees
Step-by-step explanation:
180=x+4x-20
180=5x-20
200=5x
x=40
C=2(40)+5
C=80+5
C=85
PLEASE HELP!!!Design a chart, flow chart, mind map, or some other visual to help you organize the information that can easily be determined about the graph of a parabola when the function is written in vertex form, standard form, and factored form.
Answer:
Meh sure But I can't post a picture, so I'll just type it out.
Standard form: ax^2+bx+c
Quadratic Formula: -b + or - Square root of b^2-4ac/2a
Vertex form: a(x-h)+k
A sporting goods factory produced 13,234 tennis balls per month.How many tennis balls does it produce during 12 months?
Answer:
158,808 !
Step-by-step explanation:
13,234 × m (months)
13,234 × 12
= 158,808