Answers
Answer:
The slope of the line I think is -4/2. I don't know what line segments you want me to place.
Step-by-step explanation:
I went up 4 and left 2 and ended one a spot and then i went down four and right 2 and ended up on a spot.
Related Questions
A ski resort claims that there is a 75% chance of snow on any given day in January and that snowfall happens independently from one day to the next. A family plans a four-day trip to this ski resort in January. Let X represent the number of days it snows while the family is there. What are the mean and standard deviation of X?
Option Choices:
Answers
Answer:
Its D
Step-by-step explanation:
Using the binomial distribution, it is found that the mean and the standard deviation of X are given as follows:
[tex]\mu_X = 3, \sigma_X = 0.87[/tex]
What is the binomial probability distribution?The expected value of the binomial distribution is:
[tex]\mu_X = np[/tex]
The standard deviation of the binomial distribution is:
[tex]\sigma_X = \sqrt{np(1-p)}[/tex]
In this problem, the proportion and the sample size are given as follows:
p = 0.75.n = 4.Hence, the mean and the standard deviation are given by:
[tex]\mu_X = np = 4(0.75) = 3[/tex]
[tex]\sigma_X = \sqrt{np(1-p)} = \sqrt{4(0.75)(0.25)} = 0.87[/tex]
More can be learned about the binomial distribution at https://brainly.com/question/24863377
#SPJ2
A researcher is going to estimate the average typing speed of students of a college. He selects a random sample of 20 students and finds the average typing speed of 70 wpm and the standard deviation of 5 wpm. Estimate the lower bound of the 80% confidence interval of the average typing speed of a student of this college. Express your answer using THREE decimal places
Answers
Answer:
The lower bound of the 80% confidence interval of the average typing speed of a student of this college is of 68.516 words per minute.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-interval is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 20 - 1 = 19
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.8}{2} = 0.9[/tex]. So we have T = 1.328
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 1.328\frac{5}{\sqrt{20}} = 1.484[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 70 - 1.484 = 68.516 wpm.
The lower bound of the 80% confidence interval of the average typing speed of a student of this college is of 68.516 words per minute.
One recipe makes 8 1/2 cups of potato salad. If one serving is 1/2 cup, how many servings does the recipe make?
Answers
Answer:
17
Step-by-step explanation:
8.5 / 0.5
Help plz:)))I’ll mark u Brainliest
Answers
Answer:
x = 15
y = 6
Step-by-step explanation:
[tex]5 \sqrt{9} . \sqrt{6} \\ \\ = 5 \times 3. \sqrt{6} \\ \\ = 15 \sqrt{6} \\ equating \: it \: with \\ x \sqrt{y} \\we \: find \\ x = 15 \\ y = 6[/tex]
What is mzDHE? I NEED HELP
Answers
Answer: sum of ZABC and ZCBD
Please help!! Urgent!
Answers
Answer:
[tex] log_{3}( {x}^{3} + {2x}^{2})[/tex]
Answer:
Answer:
log_{3}( {x}^{3} + {2x}^{2})log
3
(x
3
+2x
2
Hal earned $56.50 for dog sitting last month. Liz earned $87.00. How much more did Liz earn than Hal? (20 points)
Answers
Answer:
Liz made $30.50 more than Hal
Step-by-step explanation:
87.00
- 56.50
________
30.50
or
87.00-56.50=30.50
A company is developing packaging for a new product as shown below.
Choose all of the expressions that can be used to find the volume of the packaging
4 m
2 m
9 m
2 m
3 m
4 m
4 m
A (2 * 3 * 4) + (2 * 9 * 2)
B. (2 4* 3) + (2 * 9 * 4)
C. (2 * 4 * 3) + (4 * 9 * 4)
D. (3 * 4 * 4) + (
292)
E (3 * 4 * 4) + (6 * 4 * 2)
Answers
Answer:It B and C
Step-by-step explanation:
Calculate sales tax using the following information:
Taxable amount of the sale: $125
Sales tax percentage: 6.5%
What is the amount of the sales tax?
Round the answer to the nearest cent (hundredths).
Answers
Answer:
8.13
Step-by-step explanation:
125 x .065 = 8.13
In a lab experiment, 610 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to double every 23 hours. How long would it be, to the nearest tenth of an hour, until there are 1040 bacteria present?
Answers
Answer:
It would take 19 hours and 36 minutes until there are 1040 bacteria present.
Step-by-step explanation:
Given that in a lab experiment, 610 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 23 hours, to determine how long would it be, to the nearest tenth of an hour, until there are 1040 bacteria present, the following calculation must be performed:
610X = 1040
X = 1040/610
X = 1.7049
2 = 23
1.7049 = X
1.7049 x 23/2 = X
39.2131 / 2 = X
19.6 = X
100 = 60
60 = X
60 x 60/100 = X
36 = X
Therefore, it would take 19 hours and 36 minutes until there are 1040 bacteria present.
Determine whether the statement is true or false. Give an example,
If f' (x)= g' (x), then f(x) = g(x)
Answers
False; consider the functions f(x) = x and g(x) = x + 1. Clearly f(x) ≠ g(x), but both f '(x) = 1 and g'(x) = 1.
Isa is allowed to play games for 5/3 hours a day she already play 4/3 hours today
What fraction of an hour does Isa have left to play video games today?
Answers
Answer:
1/3 of an hour
Step-by-step explanation:
Because we already have the same common denominator, subtract the numerators to solve:
[tex]\frac{5}{3} -\frac{4}{3} = \frac{1}{3}[/tex]
Isa has 1/3 of an hour left to play video games (20 minutes).
HELPPPPPPPPOPP MEEEEEEEEEEEE
Answers
Answer:
4
Step-by-step explanation:
okay . so everything seems to be to the second power.
-1 to the second power = -1
3 x 3 = 9
-1 + 9 = 8 + -1 = 7
7 - 3 = 4
Answer:
6
Step-by-step explanation:
you can solve it on a T84 calculator. Just rewrite the equation with the variable's equivalent values.
I rewrote it as -1^2+3^2+1-3 and got 6. If you don't own a T84 calculator there are apps for it as well as websites for your laptop or pc. They can be very handy in a pinch!
A sofa is on sale for $258.40 which is 34%of the regular price. What was the regular price?
Answers
Answer:
$760
Step-by-step explanation:
Set up an equation:
Variable x = regular price
34/100 = 258.40/x
Cross multiply
34 × x = 100 × 258.40
34x = 25,840
Divide both sides by 34
x = 760
Check your work:
760 × 34%
Convert the percentage into a decimal:
760 × 0.34
$258.40
Correct!
Simplify sin(-x)/tanX-cos(-x)
PLEASE HELP!!!
Answers
In a right triangle, which of the following is the value of the missing side b if a = 5 cm and the hypotenuse is c = 13 cm?
Answers
Answer:
hi there so if a = 5cm b =12cm c=13cm the area is 30cm the perimeter 30cm
Step-by-step explanation:
If your right I’ll mark brainiest need ASAP
Answers
Answer:it would be thirty
Step-by-step explanation:
If the graph of f(x) = |x| is shifted up 5 units, what would be the equation of the new graph?
A. g(x) = |x + 5|
B. g(x) = |x| + 5
C. g(x) = |x| - 5
D. g(x) = |x - 5|
Answers
Answer:
B. g(x)= |x| + 5
Step-by-step explanation:
-5 represents a vertical shift down, so that narrows it down to either A or B. A shows a shift across the horizontal (X) axis, so it must be B.
what is the lenght of rectangle whose area is 240cm
Answers
Answer:
16
Step-by-step explanation:
I don't know how to explain but it is 16
Answer:
Since the Width (W) of the rectangle is not given, the answer would be Length (L) = 240/W
Step-by-step explanation:
A = L*W
240 = L*W
240/W = L
simplify: The question in photo
Answers
Answer:
Step-by-step explanation:
PLEASE HELP ILL GIVE BRAINLIEST AND A THANKS
Answers
Answer:
[tex]forth \: line \: - 5x - 3x + 3 = 6 \\ - 8x + 3 = 6 \\ - 8x = 3 \\ x = \frac{3}{ - 8} [/tex]
WITHIN THE NEXT 5 MIN I WILL GIVE U BRAINIEST
50 POINTS
1. Harold is at the bottom of the
Grand Canyon but he forgot his
phone at the top of the trail. We
decide to help him and lower his
phone to him. After the first
second, it is 16 feet closer to him,
after three seconds, it is 80 feet
closer to him. If the Grand
Canyon is 6000 feet deep, how
long will it take for the phone to
reach Harold?
Answers
Opps, wrong answer
Deleted
what is the 5th term of the expansion of (3x+y^4)^7
Answers
9514 1404 393
Answer:
945x^3·y^16
Step-by-step explanation:
The 5th term will be ...
C(7,4)(3x)^3(y^4)^4 = 35·27·x^3·y^(4·4)
= 945x^3·y^16
_____
The coefficients of the expansion are C(n, k) where n is the exponent of the binomial, and k+1 is the term number. This is n!/(k!(n-k)!). The general (k-th) term of the expansion (a+b)^n is C(n, k)a^(n-k)b^(k) where k ranges from 0 to n.
I need help pls and than you
Answers
Answer:
A
Step-by-step explanation:
In a vase, 30% of the flowers are daisies. There are 21 daisies in the vase. How many flowers are there in the vase?
Answers
if you divide 21 by 3, it equals 7. so 10 percent is 7. if you multiply 7 by 10 it equals 70
22.3+.05 I need an explanation
Answers
Answer:
22.35
Step-by-step explanation:
Take 22.3 and add .05
A freshly isolatedsample of 90Y was found to have an activity of 8.9 x 105 disintegrations per minute at 1:00pm on December 3, 2003. At 2:15pm on Dec, 17, 2003, its activity was redetermined and found to be 2.6 x 104 disintegrations per minute. Calculate the half-life of 90Y.
Answers
Answer:
3960 minutes
Step-by-step explanation:
From;
0.693/t1/2 = 2.303/t log No/N
t1/2 = half life of 90Y
No = initial activity of 90Y = 8.9 x 10^5 disintegrations per minute
N= activity of 90Y after time t = 2.6 x 10^4 disintegrations per minute
t = time taken
Since the time elapsed is 20,235 minutes, we substitute into the formula above.
0.693/t1/2 = 2.303/20235 log 8.9 x 10^5/2.6 x 10^4
0.693/t1/2 = 1.75 * 10^-4
t1/2 = 0.693/ 1.75 * 10^-4
t1/2 = 3960 minutes
A square pyramid has a volume of 864 in. The height of the pyramid is 18 in. What is the length of one of the side
of the base?
Answers
how to go in minutes from hours and hours to minutes answer in picture welcome in advance
Answers
Answer:
trick:
1 hour = 60 minutes
ex if said to convert 25 minutes to hour so
1 hour/60=1minutes
multiply both sides with 25
25 x 1hour/60=25minutes
5/12 hours=25 minutes
just like that for hour
Does anyone know the answer to this , its math inequalities
48 > -6x
Answers
Answer:
[tex]x > - 8[/tex]
Step-by-step explanation:
Swap the sides of the inequality and flip the inequality sign:
[tex] - 6x < 48[/tex]
Divide both side of the inequality by -6 and flip the inequality sign:
[tex]x > - 8[/tex]
[tex]48 > - 6x \\ \\ \\ Change \: The \: Sides \\ Of \: Value \: With \: Signs \\ \\ \implies - 6x < 48 \\ \\ \implies \: x > - 8[/tex]
Hope This Helps You ❤️