Answer:
38 seconds
Step-by-step explanation:
just take 2x7 for the elevator taking the time to reach your floor which is 14 seconds. then just add on the additional time that all the passengers take to get off the elevator as it's only counting the time since it starts moving. that is 12x2=24. now just add 24+14 and you get your answer of 38
Whats 1 and 2
true
false
true/false
Answer:false true
Step-by-step explanation:
4x(8+12) in english phrases
Every day Ahmet buys a scratch-off lottery ticket with a 40%, percent chance of winning some prize. He noticed that whenever he wears his red shirt he usually wins. He decided to keep track of his winnings while wearing the shirt and found that he won 3 out of 3 times. Let's test the hypothesis that Ahmet's chance of winning while wearing the shirt is 40%, percent as always versus the alternative that the chance is somehow greater.
Testing the hypothesis, it is found that the p-value of the test is 0.017 < 0.05, which means that we can conclude that the red shirt increases his chances of winning.
At the null hypothesis, we test if the proportion is of 40%, that is:
[tex]H_0: p = 0.4[/tex]
At the alternative hypothesis, we test if the proportion is greater than 40%, that is:
[tex]H_1: p > 0.4[/tex]
The test statistic is:
[tex]Z = \frac{X - p}{s}[/tex]
In which:
X is the sample proportion.p is the value tested at the null hypothesis.s is the standard error, given by:[tex]s = \sqrt{\frac{p(1 - p)}{n}}[/tex]
With n as the sample size.
In this problem:
0.4 is tested at the null hypothesis, thus [tex]p = 0.4[/tex].Won 3 out of 3, thus [tex]n = 3, X = \frac{3}{3} = 1[/tex].The standard error is:[tex]s = \sqrt{\frac{0.4(0.6)}{3}} = 0.283[/tex]
The value of the test statistic is:
[tex]Z = \frac{X - p}{s}[/tex]
[tex]Z = \frac{1 - 0.4}{0.283}[/tex]
[tex]Z = 2.12[/tex]
The p-value is the probability of finding a sample proportion of 1 or "above", which is 1 subtracted by the p-value of Z = 2.12.
Looking at the z-table, Z = 2.12 has a p-value of 0.983.1 - 0.983 = 0.017.The p-value of the test is 0.017 < 0.05, which means that we can conclude that the red shirt increases his chances of winning.
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I will give brainliest
How many electrons in an atom can share the quantum numbers n = 2, l = 1, ml = −1?
1
2
3
6
It's not B
Answer:
Answer is: two electrons.
n - principal quantum number, indicating relative overall energy of each orbital, n=1,2,3,...
l - angular momentum quantum number, shape of the orbital, l = 0,1,...,n−1.
l =1 for the p orbitals.
ml - magnetic quantum number, ml = 0,±1,...,±l.
This is 2px orbital, in every orbital there is two electrons with different spin.
Step-by-step explanation:
Mark Brainliest Please
Which of the following describes a gerund and how it functions in a sentence? (1 point)
O A gerund is a noun that functions as the subject of a sentence.
O A gerund is a noun that functions as the direct object receiving the action in a sentence.
O A gerund is a verb ending in -ing that functions as a verb in a sentence.
O A gerund is a verb ending in -ing that functions as a noun in a sentence.
Answer:
a
Step-by-step explanation:
The accurate definition of the gerund and its purposes is "gerund is a verb ending in -ing that serves as a noun in a phrase." Thus, option fourth is correct.
What is sentence?Sentence refers to a set of words that are appropriately ordered in a line and provide the sense or meaning. When the line imparts meaning to the words, it is considered to be a sentence.
A combination of words that may transmit a statement, question, exclamation, or demand on their own. Sentences generally include a subject and a predicate, as well as one main clause and one or more subsidiary clauses.
Gerund is a verb form that includes -ing at the end of the word and functions as a noun in the phrase. Gerunds, like the other two forms of verbals, are founded on a verb and hence reflect the verbal category.
Therefore, it can be concluded that option fourth is correct.
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Evaluate.
8(19−6⋅2)
enter the answer in the checkbox.
Answer:
102.4
Step-by-step explanation:
8(19-6.2)
8(12.8)
102.4
Answer:
102.4
Step-by-step explanation:
I looked it up on mathaway there is no explanation
Consider the quadratic function f(x)=8x2−7x+6. What is the constant of the function?
Answer:
6 is the constant :
because it is never going to change
f(x), and others that contain x will change based on the value x
Since 6 doesn’t have the c with it it will be constant
You invest $1200 into an account paying 7% interest compounded quarterly. Determine the annual interest rate to the nearest hundredth of a percent
Which of the following systems of inequalities would produce the region
indicated on the graph below?
Answer: Im pretty sure its B
(/ ^_^/) .....
1.
WRITE "six million five hundred thousand four" in standard form.
A+B + C = 180
A= 36
What is x
Answer:
which is x here
please write complete question
HELP PLZ HELP FAST THIS IS DUE
Answer:
False
Step-by-step explanation:
The angles are different degrees
Answer: false
Step-by-step explanation: dont really have an explenantion
What is the tenth term of the given geometric sequence: -1, 4, - 16, 64, ... ?
А: 262,144
B: 4,194,304
C: -65,536
D: -1,048,576
Answer:
262144
Step-by-step explanation:
Geometric sequence : -1 , 4 , -16 , 64 .....
Ratio = 2nd term ÷ 1st term = 4 ÷ (-1)= -4
a = first term = -1
r = -4
Each term is obtained by multiplying the previous term by (-4)
nth term = [tex]ar^{n-1}[/tex]
10th term = [tex](-1) * (-4)^{9}= -1 * (-262144) = 262144[/tex]
Amanda's average grade on a set of five test was 88%. She can remember only that the first four grade were 78%, 86%, 96%, and 94%. What was the grade on her fifth test ?
Answer:
I think the answer is 92%.
solve pls brainliest
Answer:
a) 5
b) 9
Step-by-step explanation:
The lines by the side decide absolute value, meaning distance from zero. for question A, simply add the integers to get -5. With the absolute value lines surrounding the question, you must make the answer 5 instead of -5 to show the distance from zero. In easier words, absolute value is just the positive number of an integer. For question B, the absolute value is surrounding just the -7, making it a positive 7. So, you simply just add 7 + 2 for question B, getting 9.
Please help! Only answer if correct :)!!
Answer:
x....y
0....-9
-9...0
Solution:
Draw a line thru the 2 points.
Do the same for the other eqn. Where they incersect is the solution.
Here's the solution in attachment
Check all solutions to the equation. If there are no solutions, check "None."
&x=0
Someone please help ASAP!!
Answer:
I think 0 is the only one that works here.
Step-by-step explanation:
Answer:
the only option is 0
Step-by-step explanation:
A swimming pool contains 3000 gallons of water pool is drained a rate of 100 gallons per minute write a rule for the amount of water in the pool one X minutes of gone by find the amount of water in the pool 130 minutes of
Answer:
100+130=3000
Step-by-step explanation:
Brainlest me please heheheA bottle of milk is 63% full and contains 1260ml of milk.
How much milk did the carton contain when it was full?
9514 1404 393
Answer:
2 liters
Step-by-step explanation:
The applicable proportion can be written ...
amount/percentage = 1260 mL/63% = x/100%
2000 mL = x = 2 liters
The full carton held 2 liters of milk.
Seventy-Two Inc., a developer of radiology equipment, has stock outstanding as follows: 80,000 shares of cumulative preferred 3% stock, $20 par and 405,000 shares of $25 par common.
During its first four years of operations, the following amounts were distributed as dividends: first year, $30,000; second year, $74,000; third year, $100,000; fourth year, $100,000.
Determine the dividends per share on each class of stock for each of the four years. Round all answers to two decimal places. If no dividends are paid in a given year, enter "0.00".
Evaluate.
−|a+b|/2−c when a=1 7/8 , b=−1 , and c=−4
Enter your answer as a simplified fraction in the box.
a= 1 7/8 {Given}
b=-1
c=-4
Putting values;[tex] \frac{ - | 1\frac{7}{8} + ( - 1)| }{2} - ( - 4)[/tex]Convert the mixed number to an improper fraction[tex] \frac{ - | \frac{15}{8} + ( - 1) | }{2} - ( - 4)[/tex]When there is a + in front of an expression in parentheses, the expression remains the same&When there is a - in front of an expression in parentheses, change the sign of each term in the expression[tex] \frac{ - | \frac{15}{8} - 1| }{2} + 4[/tex]Calculate the difference[tex] \frac{ - | \frac{7}{8} | }{2} + 4[/tex]The absolute value of any expression is always positive or zero[tex] \frac{ - \frac{7}{8} }{2} + 4[/tex]
Use [tex] \frac{ - a }{b} = \frac{a}{ - b} = - \frac{a}{b} [/tex] to rewrite the fraction[tex] - \frac{ \frac{7}{8} }{2} + 4[/tex]Simplify the complex fraction[tex] - \frac{7}{16} + 4[/tex]Calculate the sum[tex] \frac{57}{16} [/tex]Solved ✔︎An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The value of -|a + b| / 2 - c when a = [tex]1\frac{7}{8}[/tex], b = -1, and c = -4 in a mixed fraction is [tex]3\frac{9}{16}[/tex].
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
- |a + b| / 2 - c
The value of -|a + b| / 2 - c
when,
a = [tex]1\frac{7}{8}[/tex] = 15/8
b = -1
c = -4
= [- |a + b| / 2 ]- c
= [ - | 15/8 + (-1) | / 2] - (-4)
= [ - | 15/8 - 1 | / 2 ] + 4
= [ - | (15-8)/8 | / 2 ] + 4
= [ - | 7/8 | / 2 ] + 4
= { -7/(8 x 2) ] + 4
= -7/16 + 4
= (-7 + 16x4) / 16
= (-7 + 64) / 16
= 57 / 16
We have to write in a mixed fraction.
= [tex]3\frac{9}{16}[/tex]
Thus,
The value of -|a + b| / 2 - c when a = [tex]1\frac{7}{8}[/tex], b = -1, and c = -4 in a mixed fraction is [tex]3\frac{9}{16}[/tex].
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the entrance to the hotel
Answer:
Hotel Mario
Step-by-step explanation:
hurry fast ill give brainlyist\
9+10
Answer:
19 Your welcome have a good day
The claim is that weights (grams) of quarters made after 1964 have a mean equal to 5.670 g as required by mint specifications. The sample size is n = 39 and the test
statistic is t= -3.276. Use technology to find the P-value. Based on the result what is the final conclusion? Use a significance level of 0.01.
State the null and alternative hypotheses
Hop
H.
(Type integers or decimals. Do not round)
Testing the hypothesis, we have that:
The null hypothesis is [tex]H_0: \mu = 5.67[/tex]The alternative hypothesis is: [tex]H_1: \mu \neq 5.67[/tex]The p-value of the test is of 0.002252.The p-value is 0.002252 < 0.01, which means that the final conclusion is that the mean weight of quarts made after 1960 is different than 5.67g.At the null hypothesis, we test if the mean is of 5.670g, that is:
[tex]H_0: \mu = 5.67[/tex]
At the alternative hypothesis, we test if the mean is different of 5.670g, that is:
[tex]H_1: \mu \neq 5.67[/tex]
The test statistic is t = -3.276, with the number of degrees of freedom given by:
[tex]df = n - 1 = 39 - 1 = 38[/tex]
The p-value is found using a t-distribution calculator, using a two-tailed test(as the alternative hypothesis is that the mean is different from the value), with t = -3.276 and 38 df. This p-value is of 0.002252.
The p-value is 0.002252 < 0.01, which means that the final conclusion is that the mean weight of quarts made after 1960 is different than 5.67g.
A similar problem is given at https://brainly.com/question/24146681
Pls helpppppppppp meeeeeeeeeeeeeeee
Answer:
B. [tex]\frac{1}{5}[/tex]
Hope this helped. A brainliest would be very much appreciated. (I need 4 brainliest so I can level up) :)
At a diving competition, Allison scored 78.5 on her first dive. Hannah's score on her first dive was 74.65. How many more points did Allison score on her first dive than Hannah? Show your work.
Answer:
78.5-74.65=3.85
Step-by-step explanation:
There is a 1 in 8 chance of a player winning a game. Which value is equivalent to the chance
of the player winning a game?
F
100
125
G
125
10
H 1.25
J 0.125
The value which is equivalent to the 1 in 8 chance of the player winning a game is Choice J: 0.125.
The question statement implies that the probability of a player winning a game is 1 in 8.
We must know that the probability of an event occuring can be expressed as any choice of real numbers. However, the probability must ultimately not be more than 1 upon evaluation.
For choice F:
The expression 100/125 = 0.8 which is not equivalent to 1 in 8.For choice G:
The expression 125/10 = 12.5 which is not equivalent to 1 in 8.For choice H:
The expression 1.25 is more than 1, therefore, it is obviously not equivalent to 1 in 8.For Choice J:
The expression 0.125 is equivalent to 1 in 8 because 1/8 = 0.125.Read more:
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please give clear answer!! soon <3
Explain how you can take an imaginary number and multiply it by another imaginary
number and get a real number.
Answer:
When you multiply two imaginary numbers, you are essentially multiplying them by itself or squaring them. If we recall, an imaginary number is the square root of -1. By squaring this number, you're eliminating the square root, ending up with -1 (aka a real number).
a brick of himalayan salt measures 20x10x4 and weighs 1 kg and 600 gs what is its density
Answer:
t and the tree is the relationship of
A brick of himalayan salt measures 20 x 10 x 4 and weighs 1 kg and 600 gs. then the density will be; 0.002 kg/cubic unit.
How are density, volume and mass of a substance related?Density is like rate. It tells you how much of a thing is available for each unit other thing which contains the first thing. Suppose that a finite amount of substance is there having its properties as:
mass of substance = m kg
density of substance = d kg/m³
volume of that substance = v m³
Then, they are related as:
d = m/v
Given that a brick of himalayan salt measures 20 x 10 x 4 and weighs 1 kg and 600 gs.
Density = Mass / Volume
Density = 1.6 kg / 20 x 10 x 4
= 0.002 kg/cubic unit.
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The sum of 2 and w is less than 21
2+w<21
-2 -2
w<19
w is 18 and under.