When a normal six sided die is rolled what is the probability of getting a 7
Answer:
0% chance
Step-by-step explanation:
Answer:
0/6
You can't roll a 7 on a 6 sided die.
Q4. Three students A, B and C had 3 soil samples. Each student poured 180 mL of water
into the soil samples they had. Time taken for the percolation of water through the three
soil samples was 25 min, 10 min and 40 min respectively. Which student had the soil with
the highest percolation rate?
Answer:
Student B
Step-by-step explanation:
Soil percolation is the porosity of soil to the downward flow of water through it. A soil with high percolation allows water to drain through it downwards in a less period of time.
From the given experiment by students, it takes 25 min for water to percolate through the soil sample of student A, 10 min for the soil sample of student B and 40 min for the soil sample of student C. Thus, the student that had the soil sample with highest percolation rate is B.
Please answer!! Name this angle
Answer:
right and complementary its not Acute
Step-by-step explanation:
What is the area of the figure below?
15 in 2
20 in 2
30 in 2
25 in 2
Answer:
25 [tex]in^{2}[/tex]
Step-by-step explanation: we can move the little triangle on the side to the missing part of the square and it says the length of the little triangle is 2 so we can do 2+3 since the height of the square with the missing side is 3. then we end up with the height being 5 and the base being 5. we know that A=bh so we can do A=5x5 and get 25 in squared
pls mark me branliest!!
Answer:
25ft2
Step-by-step explanation:
Which statements are true about the figure? Check all that apply,
The figure is a triangular prism,
The figure is a rectangular pyramid,
The figure has 6 vertices,
The figure has 6 faces,
The figure has 9 edges,
WILL MARK 5 STARS PLEASE SOS
Hence, determine the connection between the discriminant and the nature of the
roots of each equation in the table below:
Manny buys 16 apples at the market and 8 oranges. what are the ratios of apples to oranges ?
Answer:
2:1 or 16:8
Step-by-step explanation:
Answer:
2:1
Apple: orange
Step-by-step explanation:
Divide the number of apples by the number of oranges
1. The pollution level in the center of a city at 6 am is 30 parts per million and it
grows in linear fashion by 25 parts per million every hour. If y is pollution
and t is time elapsed after 6 am, determine:
a. The equation that relates y with t.
b. The pollution level at 4 o'clock in the afternoon
Answer:
a) [tex]y(t) = 30 + 25t[/tex]
b) The pollution level at 4 o'clock in the afternoon is of 280 parts per million.
Step-by-step explanation:
The pollution level in the center of a city at 6 am is 30 parts per million and it grows in linear fashion by 25 parts per million every hour.
This means that the pollution in t hours after 6 am is given by:
[tex]y(t) = 30 + 25t[/tex], which is the answer to question a.
b. The pollution level at 4 o'clock in the afternoon
4 in the afternoon is 10 hours after 6 am, so this is y(10).
[tex]y(10) = 30 + 25*10 = 30 + 250 = 280[/tex]
The pollution level at 4 o'clock in the afternoon is of 280 parts per million.
State the hypothesis and the conclusion in each conditional statement.
26. If you are a basketball player, then you are at least 5’9” tall.
27. If three points lie on a line, then they are collinear.
28. If you are 13 years old, then you are a teenager.
29. 9x=36 implies x=4.
30. A =+~ B only if mA =+~mB ( I can’t type it so please look at the picture instead )
You don’t have to do all this if you don’t want to, you can help me by doing at least one.
Thank youuuuuu :) <3
Step-by-step explanation:
Hypothesis - Statement following the word 'Íf'
Conclusion - Statement after the word 'Then'
26. If you are a basketball player, then you are at least 5’9” tall.
Hypothesis - If you are a basketball player
Conclusion - then you are at least 5’9” tall.
27. If three points lie on a line, then they are collinear.
Hypothesis - If three points lie on a line
Conclusion - then they are collinear.
28. If you are 13 years old, then you are a teenager.
Hypothesis - If you are 13 years old
Conclusion - then you are a teenager.
29. 9x=36 implies x=4.
Hypothesis - 9x=36
Conclusion - x=4
30. A =+~ B only if mA =+~mB
Hypothesis - if mA =+~mB
Conclusion - A =+~ B
A scale model of a buliding is 18 inches tall. The actual building is 240 feet tall. What is the scale factor of the model? Write your answer as a fraction in simplest form.
Answer:
The scale factor of the model is 160.
Step-by-step explanation:
18 inches : 240 feet tall is also equal to
18 inches : 2880 inches
2880/18 = 160
A facilities manager at a university reads in a research report that the mean amount of time spent in the shower by an adult is 5 minutes. He decides to collect data to see if the mean amount of time that college students spend in the shower is significantly different from 5 minutes. In a sample of 8 students, he found the average time was 5.55 minutes and the standard deviation was 0.75 minutes. Using this sample information, conduct the appropriate hypothesis test at the 0.05 level of significance. Assume normality.
Answer:
0.0384 < 0.05, which means that we can conclude that the mean amount of time that college students spend in the shower is significantly different from 5 minutes.
Step-by-step explanation:
A facilities manager at a university reads in a research report that the mean amount of time spent in the shower by an adult is 5 minutes.
This means that the null hypothesis is [tex]H_{0} = 5[/tex]
He decides to collect data to see if the mean amount of time that college students spend in the shower is significantly different from 5 minutes.
This means that the alternate hypothesis is [tex]H_{a} \neq 5[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
Null hypothesis:
Tests [tex]H_{0} = 5[/tex], which means that [tex]\mu = 5[/tex]
In a sample of 8 students, he found the average time was 5.55 minutes and the standard deviation was 0.75 minutes.
This means, respectively, that [tex]n = 8, \mu = 5.55, \sigma = 0.75[/tex]
Test statistic:
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{5.55 - 5}{\frac{0.75}{\sqrt{8}}}[/tex]
[tex]z = 2.07[/tex]
Pvalue:
Since we are testing if the mean is different from a value, and z is positive. The pvalue is two multiplied by 1 subtracted by the pvalue of z = 2.07.
z = 2.07 has a pvalue of 0.9808
2*(1 - 0.9808) = 2*(0.0192) = 0.0384
Decision:
0.0384 < 0.05, which means that we can conclude that the mean amount of time that college students spend in the shower is significantly different from 5 minutes.
HELP ASAP PLEASE
Which best describes parallel lines?
Otwo lines that are always equidistant
O two lines that curve to form a circle
O two lines that intersect at multiple points
O two lines that originate from the same point
Harley read 5 books in january, 8 books in february, 4 books in march and 7 books in april. what is the average number of books harley reads per month
A: 7
B: 6
C: 6.5
D: 3
Answer:
B: 6
Step-by-step explanation:
Find the mean:
5+8+4+7= 24
24/4=6
A pool measuring 8 meters by 28 meters is surrounded by a path of uniform width,
as shown in the figure. If the area of the pool and the path combined is 800 square
meters, what is the width of the path?
8 + 2x
8
28
28 + 2x
ts
Answer:
6
Step-by-step explanation:
The wide of the path is 28 + 2x
What is surface area?The area is the sum of the areas of all its faces.
The areas of the base, top, and lateral surfaces i.e all sides of the object. It is measured using different area formulas and measured in square units and then adding all the areas.The area of a solid object is a measure of the total area that the surface of the object covers.
area of the pool = 8 * 28 meteres²
total area of pool and path = 800 meteres ²
The width of the path is = 800 - 224
= 576 meters ²
Learn more about the area here:-https://brainly.com/question/25292087
#SPJ2
someone help me ASAP
Answer:
><><><><><
Step-by-step explanation:
...
hi! I hope you are okay, what do you need help with????? Pls mark brainliest to make me happy!!!!
Yohanna swam y yards yesterday. Sheylin swam 5 yards less than half the amount of yards as Yohanna. Write and expression that represents the number of yards Sheylin swam yesterday. Example : #W
Compare the number of black stars to the number of white
stars.
Black Stars
3
12
18
24
White Stars
2
8
12
?
If the ratio remains the same, how many white stars will
there be if there are 24 black stars?
OA) 16
OB) 18
OC) 20
OD) 27
Answer:
OA) 16Step-by-step explanation:
? = 16
Since the number of White stars is 2/3 of the number of Black Stars, you would do 24 x 2/3 = 48/3 = 16
OR
24 x 2/3 = 8 x 2 = 16
Hope that helps!
Answer:
16 white stars
Step-by-step explanation:
3x8=24
2x8=16
What is the equation of the line that passes through the point (5, -6) and has a
slope of 3/5
Answer:
y = 3/5x + -9
or y = 3/5x - 9
Step-by-step explanation:
Since you are already given the slope for this equation all you have to do is plug in the ordered pair in this equation: y = mx+b
Here is what this equation stands for:
y = the y in the order pair you are given, in this case it would be -6
m = This is the slope, sometimes you may not be given the slope so you would have to find it, but in this case, you are given it, the slope is 3/5
x = the x in the ordered pair you are given, in this case it would be 5
b = This is the y-intercept, you will mostly be solving for this most of the time
(5,-6)
(x, y)
y = mx+b (Use this Formula)
-6 = 3/5(5) +b (The numbers have been substituted within the formula)
-6 = 3+b (simplify the equation by multiplying the slope by the x)
-6-3 = b ( once simplified the left side of the equation, go to the right side, but remember when you do that you have to change the sign because you are eliminating 3 on the left side completely, "what you do on one side, do it to the other side")
-9 = b (solve)
y = 3/5x + -9 (plug in the slope and B(y-intercept) within the formula - y = mx+b, make sure that you are not plugging in x and y for this step)
I Hope This Helped You Understand this Problem Better/More!!! Stay Safe and Healthy!
(75 hundredths) + (4 x 100) + (67 ones) + (5 tens) 2. Rocky's rug is in the shape of a rectangle. The width of the rug is 2 feet. The length of the rug is 4 feet. Enter the area, in square feet, of Rocky's rug.
Answer:
[tex]A=8\ feet^2[/tex]
Step-by-step explanation:
Given that,
The width of the rug is 2 feet.
The length of the rug is 4 feet.
We need to find the area of the rug. Fo a rectangle shape, the area of the rectangle is given by :
A = lb
So,
[tex]A=2\times 4\\\\A=8\ feet^2[/tex]
So, the area of the rug is [tex]8\ feet^2[/tex].
If you were to rotate ABCD 180° about the origin,
what would the coordinates of B' be?
(-1,3)
(0,0)
(-6, -5)
(-6, 2)
Answer:
both elements will be negative in rot.180°
The length of a rectangle is 1 more than twice the width. The area of the rectangle is given by the formula A = l × w. Which of the following equations could be used to find the area?
A)
A = 2w2 + w
B)
A = w2 + 2w
C)
A = 2w2
D)
A = 3w
The area of the rectangle will be given as Area = 2W² + W. Then the correct option is A.
What is a rectangle?It is a polygon with four sides. The total interior angle is 360 degrees. A rectangle's opposite sides are parallel and equal, and each angle is 90 degrees. Its diagonals are all the same length and intersect in the center.
The length of a rectangle is 1 more than twice the width.
The area of the rectangle is given by the formula A = L x W.
Then the area of the rectangle will be
The relation between the length and width is given below.
L = 2W + 1
Then the area will be
Area = L x W
Area = (2W + 1)W
Area = 2W² + W
More about the rectangle link is given below.
https://brainly.com/question/10046743
#SPJ1
Which one shows a positive linear association?
Answer:
D
Step-by-step explanation:
I think that is the answer
Can you please help me..
Answer:
7
Step-by-step explanation:
The answer is 7
Trust me :)
Question 14 of 17
Pls help I’m failing
The following figures show the first two steps of a proof of the Pythagorean
theorem. Which of the following statements about this proof is false?
Answer:d
Step-by-step explanation:
I’m smart trust me
Write the decimal in simplest fractional form: 3.05
Answer:
The simplest form, as a fraction is:
[tex]\frac{61}{20}[/tex]
Step-by-step explanation:
Though being quite a large amount, this is actually its number, here is why:
3.05 turned into a fraction would look like a mixed fraction:
[tex]3\frac{5}{100}[/tex]
It is [tex]\frac{5}{100}[/tex] because 0.05 is also 5 hundredths.
And 3 is 3.00 because it is a whole number.
Now, you need to reduce or simplify the [tex]\frac{5}{100}[/tex] into:
[tex]\frac{5}{100}[/tex] = [tex]\frac{1}{20}[/tex]
The reason it is [tex]\frac{1}{20}[/tex] is because:
[tex]\frac{5}{100}[/tex]
Both the numerator (top of fraction) and denominator (bottom of fraction) can both be divided by 5, which gives you your total of:
[tex]\frac{1}{20}[/tex]
Now, you are left with:
[tex]3\frac{1}{20}[/tex]
But since we are looking for the most simplest fractional form, and not the mixed form, we will need to turn this into a improper fraction.
Which will look like:
[tex]\frac{61}{20}[/tex]
This is how I turned it from a mixed fraction into a improper fraction:
[tex]3\frac{1}{20}[/tex]
(First, multiply 3 by the denominator, which is 20)
3 · 20
= 60
You will now add 1 to 60 and get a sum of:
60 + 1
= 61
(The reason you want to multiply 20 and 3, is because if you have the whole of a denominator, for example:
[tex]\frac{20}{20}[/tex]
it will equal 1, in this case:
if we have 3:
[tex]\frac{20}{20}[/tex] [tex]\frac{20}{20}[/tex] [tex]\frac{20}{20}[/tex]
Then our whole number will be 60 for our numerator and it will look like:
[tex]\frac{60}{20}[/tex] = 3
[tex]3\frac{1}{20} = \frac{61}{20}[/tex]
These are actually the same, just in different fractional forms.
From here we will check if we can make
[tex]\frac{61}{20}[/tex] and more simplified...
I have checked that this is most simplest form, so your answer is:
[tex]\frac{61}{20}[/tex]
Hope that helps!
5-(x-3)+4x simplify equation
Answer: 3x+8
Step-by-step explanation:
Answer:
3x+8
Step-by-step explanation:
5-(x-3)=4x
5-x+3+4x
3x+8
#2 What is 18.082 rounded to the nearest whole number?
Answer:
18
Step-by-step explanation:
Mary's puppy weighs 12.4 pounds. This 27.9 pounds less than the weight of her dog. Write a SUBTRACTION equation to help you figure out many pounds Mary's dog weigh. Let d represent the weight of Mary's dog.
Answer:
x-27.9=12.4
Step-by-step explanation:
charlie uses the expression 2x + 2x to represent the perimeter of a square. What does the variable x represent in this expression?
The area
The perimeter
The side lengths
The sum of 2 side lengths
Answer:
D The Sum of 2 Numbers
Step-by-step explanation:
2+2=4 > 24 > 24 + 24
Answer:
The side length
Step-by-step explanation:
Snow Play Ski Park costs $35 entry fee and then $5 per hour. If you have $60, how long can you be at Snow Play Ski Park?
Part A - Identify the independent and dependent variables.
Answer:
You can be in the snow play ski park 5hours
Step-by-step explanation:
First 60$ - 35$=25$
1h=5$
2h=10$
3h=15$
4h=20$
5h=25$
So you can pay 35$ for the snow play ski park and then you can be there 5hours.So 35$ for the entry+25$ for the 5 hours=60$
PS:Can I be a brainliest pls. And have a nice day and sry for my english i m not so good but i wanted to help you.cya