Answer:
The angle is approximately 81 degrees. Since the person's eyes are 4 feet above the ground level, and the top of the building is 190 feet tall, the vertical distance between the person's eyes and the top of the building is 190-4=186 feet. The horizontal distance is 30 feet, since the person is standing at the end of the shadow. Therefore tan(angle)=186/30, the angle is equal to arctan(186/30)=81, approximately.
Step-by-step explanation:
A manufacturing manager reports to the CEO that 5% of products that come off the assembly line are defective. A study is performed to investigate this claim. In a random sample of 250 products that come off the assembly line, 14 are found to be defective. The CEO wants to know if the data provide convincing evidence that the true proportion of defective products differs from 0.05. Are the conditions for inference met?
Yes, the conditions for inference are met.
No, the 10% condition is not met.
No, the Large Counts Condition is not met.
No, the randomness condition is not met.
Answer:Yes, the conditions for inference are met
Step-by-step explanation:
I took the test edge 2020
Answer:Yes, the conditions for inference are met.
Step-by-step explanation:
NEED HELP ASAP WILL GIVE BRAINLIEST REAL ANSWERS ONLY PLZ WILL REPORT FAKE ANSWERS
Answer: B
Step-by-step explanation: Ez
A teacher assigns a score from 1 to 4 to each student project. The table below shows the probability distribution of the scores for a randomly selected student. Which score is most likely?
Answer:
The answer is 3 sorry if I am wrong
Step-by-step explanation:
brainliest for answer
Answer:
im not gonna help u~ but i can talk to u~ <3
Step-by-step explanation:
Help . Describe the graph of a function g by observing the graph of the base function f.
Answer:
its d
Step-by-step explanation:
I've taken this quiz before
put into algebraic expression and then Coefficient/Variable
1. 5 less than x is 20
2. the sum of x and twice y equals -6
3. the product of 5 and x squared results in 12
Answer:
1. x - 5 = 20
2. x + 2y = -6
3. 5x² = 12
Step-by-step explanation:
1. 5 less than x is 20
x - 5 = 20
2. the sum of x and twice y equals -6
x + 2y = -6
3. the product of 5 and x squared results in 12
5x² = 12
Richard paid six times as much for his computer as he did for his printer. He paid a total of $1680 for both items. What did each item cost? The printer costs (?)$ and the computer costs (?)$
Answer:
the computer was 280, and the printer was 6 times that. do the math an you have ur answer
The cost of a printer is $240 and the cost of a computer is $1440.
Given that, the cost of both computer and printer is $1680.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Let the cost of printer be x.
Richard paid six times as much for his computer as he did for his printer.
Then, the cost of computer will be 6x
Now, 6x+x=1680
⇒ 7x=1680
⇒ x=1680/7
⇒ x=$240
So, 6x=$1440
Therefore, the cost of a printer is $240 and the cost of a computer is $1440.
To learn more about an equation visit:
https://brainly.com/question/14686792.
#SPJ2
A countries population in 1993 was 253 million. In 1999 it was 237 million. Estimate the population in 2007 using the exponential growth formula. round your answer to the nearest million.
Note: When solving for k, round to four decimal places.
Answer:
240 million
Step-by-step explanation:
I took the application
What is the surface area of a rectangular prism that has a height of 5 cm, a width of 10 cm, and a depth of 4 cm?
A rectangular prism with length of 10 centimeters, width of 4 centimeters, and height of 5 centimeters.
[Not drawn to scale]
120 square centimeters
180 square centimeters
220 square centimeters
270 square cemtimeters
Answer:
220
Step-by-step explanation:
How do your write a feaction with a denominator of 20 as a decimal?
Answer:
Step-by-step explanation:
What is 20 as a decimal? To write 20 as a decimal you have to divide numerator by the denominator of the fraction. 20 is not a fraction so it is a decimal already. And finally we have: 20 as a decimal equals 20
To determine the price (P) in dollars for each necklace she makes, Mei uses this equation:
P = 15h + c
If h is the number of hours it takes to make a necklace and c is the cost of the materials,
what price would Mei charge for a necklace that takes 8 hours and $40 in materials to
make?
Answer:
$160
Step-by-step explanation:
P = 15h + c
takes 8 hours and $40 in materials
P = 15(8) + 40
P = 120 + 40
P = 160
Answer:
160
Step-by-step explanation:
PEMDAS 15(8) + 40 = 160
What is the greatest common factor of 16, 36, and 28?
5 Dr. Light performed an operation that started at 2:30 p.m. and lasted 2 hours and 20 minutes. At what time was the operation over? O 4.30 p.m. . 4:45 p.m. O 4:50 pm
Answer:
4:50 PM
Step-by-step explanation:
I hope it helps you
Corgurent or supplementary
Answer:
Congruent:
B, E, F, G
The rest are supplementary.
Step-by-step explanation:
Mark me Brainliest?
solve the system of linear equations by substitution x=17-4y y=x-2
9514 1404 393
Answer:
(x, y) = (5, 3)
Step-by-step explanation:
We can use the second equation to substitute for y in the first.
x = 17 -4(x -2)
5x = 25 . . . . . . . . eliminate parentheses, add 4x
x = 5
y = 5 -2 = 3
The solution is (x, y) = (5, 3).
How is finding the volume of prisms a bit like slicing a loaf of bread?
Answer:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
10 dan büyük doğal sayılar 50 den küçük doğal sayılar 7 nın katı olan pozitif tam sayilar
Answer:
yes lul
Step-by-step explanation:
7) At the beginning of the month, Kiki had $300 in her debit account. She
made debit purchases for $125 and $250 and made one deposit of $175.
Which one of the following best represents her debit account balance
after these transactions? *
Answer:
$100 left over
Step-by-step explanation:
well she starts off with $300 but then spends $125 so thats
300-125= 175 she made another $250 purchase so we subtract again then added $175
175+175-250 = $100
What is the length of AB (PICTURE)
PLEASE HELP
will mark brainliest!
10 points
Answer:
C I think sorry if wrong tho
Tickets to the end of year carnival are $18 for 4 tickets. What
is the cost of 9 tickets?
Answer:
$40.50
Step-by-step explanation:
Create a proportion using the cost in the numerator and number of tickets in the denominator.
[tex]\frac{18}{4} =\frac{x}{9}[/tex]
cross multiply
162=4x
divide by 4 on both sides
x=40.5
$40.50
$40.50
Step-by-step explanation:
4×2=8 tickets
18×2= 36 dollars
1/4 of 18 dollars is 4.5
so 36+4.5= $40.50
This could be wrong-
Question
A bottle of medicine contained 300 mL. Convert this to liters.
Provide your answer below:
L
Answer:
0.3L
Step-by-step explanation:
1000mL = 1L
300mL = 0.3L
solve the system of equations
y= 8x + 1
y = 6x + 3
choose:
(1,9)
(4,14)
(2,4)
(0,1)
The relative values of the mean and median for the original data set are typical of data that have a significant skew to the right. What are the relative values of the mean and median for the original data set
Answer: Your question has some missing data attached below is the missing data
Answer : Mean value is Greater
Step-by-step explanation:
The relative value of the mean for original data set is greater
Relative value of median for original data set is lesser
This is simply because the The distribution is generally skewed to the right ( Right skewed )
An isosceles triangles has two angles that equal x degrees. The third angle is 70 degrees. What is the value of x?
75 degrees
55 degrees
65 degrees
35 degrees
Answer:
2x+70° = 180°
=> 2x = 110°
=> x =55°
hope it helps you
what is the midpoint of AB with A(-1, 5) and B(6, -3) A (-4, 3.5) B (1, 2.5) C (2.5, 1) D (3.5, -4)
Answer:
Option C (2.5, 1) is the right alternative.
Step-by-step explanation:
The given points are:
A = (-1, 5) = (x₁, y₁)
B = (6, -3) = (x₂, y₂)
Now,
The midpoint on X-axis is:
= [tex]\frac{x_1+x_2}{2}[/tex]
= [tex]\frac{-1+6}{2}[/tex]
= [tex]\frac{5}{2}[/tex]
= [tex]2.5[/tex]
The midpoint on Y-axis is:
= [tex]\frac{y_1+y_2}{2}[/tex]
= [tex]\frac{5+(-3)}{2}[/tex]
= [tex]\frac{5-3}{2}[/tex]
= [tex]\frac{2}{2}[/tex]
= [tex]1[/tex]
Thus the midpoint of AB is "2.5, 1".
PLS HELP!
Find the value of the trig ratio.
Answer:
D
Step-by-step explanation:
Cos(Z) is made up of two lines The adjacent side and the hypotenuse.
The hypotenuse is the line that is opposite to the right angle. In this case it is 37
The adjacent side is the other line making up the reference angle which is Z in this case. In this case it is 35
Cos(Z) = 35/37
Adam can buy 3 buckets of popcorn and 3 drinks for $25.50. Tanya
can buy 2 buckets of popcorn and 3 drinks for $19.50. How much
is one bucket of popcorn?
$25.50
O $4.75
$6.00
O $3.00
Answer:
Let price of drink be x
price of tub y
You have 4x+2y=32.5 (1) and
x = y -3.5 (2)
Plug for x from (2) into (1):
4(y-3.5) + 2y = 32.5
4y -14 +2y = 32.5
6y = 14+32.5
y = (46.5)/6 = $7.75 the price of tub
x= y-3.5 = 7.75 - 3.5 = $4.75
1) A traditional die is a cube with each of its six sides representing the numbers from 1 to 6. Mr. Dicey customized a die by replacing each number with its reciprocal (reciprocal of x is 1/x ). What is the expected value if you roll the customized die for 6 times?
2) A game is played by throwing 3 dice. You will win in this game if the summation of the scores of these 3 dice is 3, 4, 17, 18.
What is the variance of your expected values?
3) Two dice are rolled. [A die has six sides, each representing the score from 1 to 6]
What is the expected value if you roll these two dice for 6 times?
Answer:
1) [tex]\frac{2}{5}[/tex]
2) 49.225
3) [tex]\frac{7}{2}[/tex]
Step-by-step explanation:
1) To find the expected value of the dice we can use the following equation:
[tex]E(x)=x_{1}*P(x_{1})+x_{2}*P(x_{2})+...+x_{n}*P(x_{n})[/tex]
So in our problem the values x will be: 1/1, 1/2, 1/3, 1/4, 1/5 and 1/6 and the probavility for all values is 1/6 so the expected values will be:[tex]E(x)=(\frac{1}{1} *\frac{1}{6}) +(\frac{1}{2} *\frac{1}{6}) +(\frac{1}{3} *\frac{1}{6})+(\frac{1}{4} *\frac{1}{6})+(\frac{1}{5} *\frac{1}{6})+(\frac{1}{6} *\frac{1}{6})[/tex]
[tex]E(x)=0.167+0.083+0.056+0.042+0.033+0.028=0.409\approx \frac{2}{5}[/tex]
2) To find the variance of the expected values we can use the equation:
[tex]Var(x)=\frac{\sum_{i=1}^{n}(x_{i}-\overline{x})^{2} }{n}[/tex]
So for our problem will be:
[tex]Var(x)=\frac{(3-10.5)^2+(4-10.5)^2+(17-10.5)^2+(18-10.5)^2}{4}[/tex]
[tex]Var(x)=\frac{56.25+42.25+42.25+56.25}{4}[/tex][tex]Var(x)=\frac{196.9}{4}=49.225[/tex]
3) To find the expected value of the dice we can use the following equation:
[tex]E(x)=x_{1}*P(x_{1})+x_{2}*P(x_{2})+...+x_{n}*P(x_{n})[/tex]
So in our problem the values x will be: 1, 2, 3, 4, 5 and 6 and the probavility for all values is 1/6 so the expected values will be:[tex]E(x)=(1*\frac{1}{6}) +(2 *\frac{1}{6}) +(3 *\frac{1}{6})+(4 *\frac{1}{6})+(5 *\frac{1}{6})+(6 *\frac{1}{6})[/tex]
[tex]E(x)=0.17+0.33+0.5+0.67+0.83+1=3.5\approx \frac{7}{2}[/tex]
Plsss help me!! ASAP
Answer:
9
Step-by-step explanation:
if helpful please give me brainliest
