Answers
Related Questions
PLEASEEEEEEE HELP!!!!!
Answers
Answer:
22.18
Step-by-step explanation:
c squared = a squared + b squared - 2ab cos c
or a instead of c in this case.
144+225-360(-0.342)
square root 492.12
Members of a bowling league play thousands of combined games over the course of a season. Suppose that the scores of individual games have a known standard deviation of σ=30 pins. Isla plans on taking a random sample of n games from this population to make a 95% confidence interval for the mean score. She wants the margin of error to be no more than 10 pins. Which of these is the smallest approximate sample size required to obtain the desired margin of error?
9 games
30 games
35 games
43 games
55 games
Answers
Answer: 35
Step-by-step explanation:
Got it right on khan
Eighteen students decide they don't want to be
rescued and want to continue to live in the
jungle. If this represents 40% of the students,
how many students want to be rescued?
Answers
Answer:
27
Step-by-step explanation:
There are 45 students in total and 18 want to continue living in the jungle
45-18=27
x= total number of students in the jungle
18 40
— = ——
X 100
Cross multiply to get 1800/40 so x=45
45 is the total number, if 18 don’t want to be rescued that means the rest (45-18= 27) want to be rescued.
Which statement describes the term economics?
Answers
Answer:
Economics: A social science that studies how people interact with value!
Hope this helps :D
6. A stoplight at an intersection stays red for 60 second, changes to green for 45
seconds, and then turns yellow for 15 seconds. If Jamal arrives at the
intersection at a random time, what is the probability that he will have to wait at
a red light for more than 15 seconds?
Answers
Answer:
0.75 = 75% probability that he will have to wait at a red light for more than 15 seconds
Step-by-step explanation:
At each second, the stoplight is equally likely to change, which means that we use the uniform probability distribution to solve this question.
Uniform probability distribution:
Has two bounds, a and b. The probability of finding a value higher than x is given by:
[tex]P(X > x) = \frac{b - x}{b - a}[/tex]
Red for 60 seconds
So when Jamal arrives it can change in any number of seconds between 0 and 60, that is, [tex]a = 0, b = 60[/tex]
Probability that he will have to wait at a red light for more than 15 seconds?
[tex]P(X > 15) = \frac{60 - 15}{60 - 0} = \frac{45}{60} = \frac{3}{4} = 0.75[/tex]
0.75 = 75% probability that he will have to wait at a red light for more than 15 seconds
Find 59.2% of 250................................................
Answers
Answer:
148
Step-by-step explanation:
59.2/100x250
PLEASE HELP ME. Rhombus ABCD has a diagonal BD¯¯¯¯¯.
m∠ADB=(4x−12)°
m∠CDB=(3x+6)°
What is the m∠ADC ?
Enter your answer in the box
º
Answers
Answer: 120
Step-by-step explanation: took the test and that’s the correct answer
Can someone answer me I don’t get it
Answers
Answer:
B, C and F
Step-by-step explanation:
Negative numbers go farther and father to the left on a number line the higher in value they get.
Write the percent as a fraction or mixed number in simplest form.
1. 12.5%
2.55%
3. 180%
4. 24%
Answers
Answer:
1) [tex]\frac{1}{8}[/tex]
2) [tex]\frac{55}{100} or \frac{11}{20}[/tex]
3) [tex]\frac{9}{5}[/tex]
4) [tex]\frac{6}{25}[/tex]
Can someone help me with this equation
Answers
Answer: 9.45•10^7
Step-by-step explanation:
Which pair of triangles can be used to show that the slope of line a is the same anywhere along the line?
Answers
Answer:
C
Step-by-step explanation:
The pair of triangles in option C (image attached below) shows that the slope of line a is the same anywhere on the line.
Let's check it out:
Slope = rise/run
✔️For the first lower triangle:
Rise = 3.5
Run = 4.5
Slope = 3.5/4.5 ≈ 0.8
✔️For the second upper traingle:
Rise = 4
Run = 5
Slope = 4/5 = 0.8
Therefore, it shows that the slope of the line is the same anywhere along the line of the graph.
Answer:
Step-by-step explanation:
In a children's story, a young girl finds that one bowl of soup is too hot, another is too cold, and a third bowl is just
right. Further study reveals that the temperature of the soup bowl that the young girl declared to be just right was
100°F. A researcher would like to test the hypotheses How=100 versus Hou* 100 where ji = the true mean
temperature of all bowls of soup. A 95% confidence interval based on a random sample of 30 bowls of soup is
(100.9, 102.3). Using this interval, can the researcher reject the null hypothesis?
Yes, the null hypothesis can be rejected at the significance level a = 0.05, because 100 is not contained in the and
95% confidence interval.
Yes, the null hypothesis can be rejected at the significance level a = 0.01, because 100 is not contained in the
95% confidence interval.
No, the null hypothesis cannot be rejected at the significance level a = 0.05, because 100 is not contained in the
95% confidence interval.
No, the null hypothesis cannot be rejected at the significance level a = 0.01, because 100 is not contained in the
95% confidence interval
Answers
Answer:
A, Yes, the null hypothesis can be rejected at the significance level α = 0.05, because 100 is not contained in the 95% confidence interval.
Step-by-step explanation:
Which inequality is equivalent to |x-4/<9?
- 9> X-4 < 9
0.9< X - 4 < 9
OX-4<-9 or X-4 < 9
X – 4 >-9 or x 4 < 9
Answers
Answer: x-4>-9 or x-4<9
Step-by-step explanation:
The correct option for the given inequality is x-4>-9 or x-4<9
What is an inequality?A relationship between two expressions or values that are not equal to each other is called inequality.
Given an inequality, |x-4| < 9
Using the rule, if |x| < a then, -a < x < a.
Therefore,
|x-4| < 9
-9 < x-4 < 9
x-4 > -9 or x-4 < 9
Hence, The correct option for the given inequality is x-4>-9 or x-4<9
For more references on inequality, click;
https://brainly.com/question/28823603
#SPJ2
Jerry has $90 in his savings account. The interest rate is 10%, compounded annually. To the nearest cent, how much interest will he earn in 3 years
Answers
Answer:
27 cents
Step-by-step explanation:
10% of 90= 9
9x3=27
Answer:
p x t x r / 100
90 x 10 x 3 / 100
=27
A bus has 10 seats that can hold 2 passengers and another seat that can hold 3 passengers how many passengers can be seated on the bus
Answers
Answer:it can hold 23 passangers
Step-by-step explanation:
Pls help me no weird answers pls.
Answer choices are:
A.24
B. 80
C.90
D. 56
Answers
Step 1: Subtract 5x from both sides.
3x + 8 − 5x = 5x − 40 − 5x
−2x +8 = −40
Step 2: Subtract 8 from both sides.
−2x + 8 − 8 = −40 − 8
−2x = −48
Step 3: Divide both sides by -2.
−2x − 2 = −48 −2
x = 24
Please helppp!!!!!!!!!
Answers
Answer:
bdjcifjfjfif
Step-by-step explanation:
bdjrjfiffjfj
fhfcufjfnckcffjfugjf
Which two words are the closest antonyms?
A.) admiring and devoted
B.) adopt and borrow
C.) twig and limb
D.) release and grasp
Answers
Answer:
D-Release and Grasp
Step-by-step explanation:
Antonyms are opposites, and the other answer choices are not antonyms.
Release-allow or enable to escape from confinement
Grasp-seize and hold firmly
Hope this helps :-)
1) WILL MAKE BRAINLIEST
write the slope-intercept form of the equation of each line.
Answers
Answer:
[tex]y=2x+3[/tex]
Step-by-step explanation:
1. Approach
Slope intercept form is a way of expressing an equation of a line using the slope of a line, and its y-intercept. The general format for the equation of a line in slope-intercept form is the following,
[tex]y=mx+b[/tex]
Find each of the missing pieces of information and substitute it into the equation to find the equation of the line.
2. Find the slope
The slope of a line is the change in the line is can be found using the following formula,
[tex]\frac{y_2-y_2}{x_2-x_1}[/tex]
As one can see on the given graph, two points on the line are the following,
[tex](-2, -1), (-1, 1)[/tex]
Substitute the points into the formula and solve for the slope,
[tex]\frac{(1)-(-1)}{(-1)-(-2)}[/tex]
[tex]=\frac{2}{1}\\\\=2[/tex]
3. Find the y-intercept
The y-intercept of a line is where the line intersects the y-axis. As one can see this point is the following,
[tex](0,3)[/tex]
Thus the y-intercept is (3).
4. Put the information together
Putting all of this information together, substitute the found information into the general equation for slope-intercept form. One can see that the equation of a line is the following,
[tex]y=2x+3[/tex]
how do you divide a square in half by connecting two vertices?
Answers
Answer:
diagonally.
Step-by-step explanation:
the vertices are the corners or angles. square has four angles. if you have to divide it in half by connecting 2 vertices, then you would just need to draw a line from one corner, diagonally to another corner. you have 2 halves that are equilateral triangles. think about a grilled cheese sandwich cut in half. make sense?
Connie mason has a coupon for 25 percent off the purchase of a necklace that has a regular price of 100 what is the price after the coupon is used
Answers
please help me with this equation
Answers
First we need to find x
9 < 4x - 7
Since the equation is not set up properly we need to switch it from right to left.
7 - 4x > 9
Now we solve
7 - 4x > 9
First we add 7 on both sides
7- will be 7+
-7+7 =0
9 + 7 = 16
Next we divided 4 on both sides
4/4=0 ( I know it should be 1 but that’s how it goes)
16/4= 4
So x=4
Equation
X > 4
this symbol > on a time line always must be open.
Since the symbol is facing left on the time line it must face the opposite side which is right.
So the answer is D
I hope this helped, have a nice day
What is the slope of the line that passes through the
points (2, 6) and (2, 9)?
0
3
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Answers
what is the area of the triangle 13,12,5
Answers
Answer:
area = 5
Step-by-step explanation:
A population has a standard deviation of 97. We take a random sample of size 26 from this population. Let Xbar be the sample mean and let Xtot be the sample sum of our sample. These are random variables. a) What is the variance of this population
Answers
Answer:
Variance of this population = 9,409
Step-by-step explanation:
Given:
Standard deviation of population = 97
Random sample size = 26
Find:
Variance of this population
Computation:
Standard deviation (σ) = 97
Variance = Standard deviation²
Variance = (σ)²
Variance of this population = Standard deviation of population²
Variance of this population = 97²
Variance of this population = 9,409
how many hundreds are in 200 + 10 + 6
Answers
Answer:
1
Step-by-step explanation:
Answer:
2?
Step-by-step explanation:
Why should you write everything down instead of doing the math in your head?
Answers
Answer and Step-by-step explanation:
It ensures that you don't accidently skip a step or get confused by which numbers are being used. By writing it down, it allows you to look back and see if you answer was correct or incorrect.
For example:
On a test, you need to do a complicated math problem that you know you can do in your head. It would still be a good idea to write down the process, so that you can see in front of you the numbers you get and results. If it is incorrect when checking over you answers, then you can go through the steps you made to see where you made a mistake.
#teamtrees #PAW (Plant And Water)
Answer:
Because when you need to use this information in the future it will be in your notebook/binder. When you study each lesson you will have the answers in your notes for when you do a Test or quiz. When doing math in your head it is called mental math but it is only used when needed.
Step-by-step explanation:
- chicken box
i need help i dont know how to do this yet
Answers
Answer:
A=wl=4·7=28 answer is 28
Step-by-step explanation:
Answer:
the answer is 28
Step-by-step explanation:
you do lengthh times width
the length is 7 the width is 4
so 7 times 4 is 28
The question is in le picture below U-U
Answers
Answer:
30%
Also I LOVE THE EMMA PIC!!!!!!!!
Graph the following function on the axes provided.
Answers
Answer:
this may help you.look it once
Step-by-step explanation:
.