9514 1404 393
Answer:
32.8 m/s
Step-by-step explanation:
The function is actually ...
[tex]v(d) = \sqrt{2gd}[/tex]
Filling in the given values, the velocity is about ...
[tex]v(55) = \sqrt{2\cdot9.8\cdot55}=\sqrt{1078}\approx32.8\text{ m/s}[/tex]
The velocity at the end of the free-fall is about 32.8 meters per second.
Are they parallel? Please answer like the one on the top, I’m trying to get my geography hw in Bc it’s missing
Answer:yes they are
Step-by-step explanation:
what is the slope for (8,-4) and (-2,-4)
Answer:
2
Step-by-step explanation:
need a correct answer please
Answer:
$239.02 and $10177
Step-by-step explanation:
Ann:
2868.32/6= 478.05
478.05/2= 239.02
Ann's sister:
3562.28/7= 508.89
508.89/5= 101.77
dont know if i did this right to be completely honest. but i feel like it's right. sorry if it's not.
Are 3/2 and 7/4 proportional ratios?
Answer:
No
Step-by-step explanation:
3/2 = 1 1/2 = 1.50
7/4 = 1 3/4 = 1.75
HOPE THIS HELPS
PLZZ MARK BRAINLIEST
There are 20 students in a drama class. The mean age of 12 students is 18 years. The mean age of the remaining 8 students of the drama class is 23 years. What is the mean age of all the students in the drama class?
Answer:
Step-by-step explanation:
Total sum of age of 12 students = 12*18 = 216;
Total sum of age of 8 students = 8*23 = 184;
Total sum of age of 20 students = 216+184 = 400;
Mean age of all the students = total age / number of students;
= 400/20 = 20 year
Step-by-step explanation:
How is the concavity of the parabola related to the orientation of the parabola?
Answer:
When it yields a negative constant, the original function is everywhere concave down. In other words, when the second derivative of the equation of our parabola is positive, the parabola opens upward; when it is negative the parabola opens downward. Example 2: If y = -2(x-1)² + 3, determine the parabola's orientation.
Step-by-step explanation:
I hope this helps and can you give me a Brainliest plz plz plz.
Evaluate the function.
f(x) = -x2 – 3x + 15
Find f(-8)
Answer:
38 baby
Step-by-step explanation:
Answer:
[tex] f(-8) = -25 [/tex]
Step-by-step explanation:
[tex] f(x) = -x^2 - 3x + 15 [/tex]
[tex] f(-8) = -[(-8)^2] - 3(-8) + 15 [/tex]
[tex] f(-8) = -(64) + 24 + 15 [/tex]
[tex] f(-8) = -25 [/tex]
Jessica lived in Spain and Colombia for a total of 18 months in order to learn Spanish.She learned an average of 160 words per month when she lived in Spain, and an average of 200 per month when she lived in Colombia. In total, she heard 3200 new words. How long did Jessica live in Spain, and how long did she live in Colombia?
Answer:
Jessica lived 10 months in Spain and 8 months in Colombia.
Step-by-step explanation:
Let x be the months Jessica spent in Spain, and y the months she spent in Colombia:
1. x + y = 18
Using the information of words per month learned in each country, we can also write the equation:
2. 160 * x + 200 * y = 3200
So now we have a system of two equations and two unknowns.
First we express y in terms of x, in the first equation:
x + y = 18y = 18 - xWe replace y in the second equation:
160 * x + 200 * (18 - x) = 3200And solve for x:
160x + 3600 - 200x = 3200-40 x = -400x = 10Finally we use that value of x in the first equation and solve for y:
10 + y = 18y = 8Jessica lived 10 months in Spain and 8 months in Colombia.
The number of responses to a survey are shown in the Pareto chart. The survey asked 1052 adults how they would grade the quality of their public schools. Each person gave one response,
Find each probability
(a) Randomly selecting a person from the sample who did not give the public schools an A
(1) Randomly selecting a person from the sample who gave the public schools a grade better than a D
(c) Randomly selecting a person from the sample who gave the public schools a Dor an F
(d) Randomly selecting a person from the sample who gave the public schools an A or B
(a) The probability that a randomly selected person did not give the public schools an Als
(Round to three decimal places as needed)
Answer: (a) P(no A) = 0.935
(b) P(A and B and C) = 0.0005
(c) P(D or F) = 0.379
(d) P(A or B) = 0.31
Step-by-step explanation: Pareto Chart demonstrates a relationship between two quantities, in a way that a relative change in one results in a change in the other.
The Pareto chart below shows the number of people and which category they qualified each public school.
(a) The probability of a person not giving an A is the difference between total probability (1) and probability of giving an A:
P(no A) = [tex]1-\frac{68}{1052}[/tex]
P(no A) = 1 - 0.065
P(no A) = 0.935
b) Probability of a grade better than D, is the product of the probabilities of an A, an B and an C:
P(A and B and C) = [tex](\frac{68}{1052})(\frac{258}{1052})(\frac{327}{1052})[/tex]
P(A and B and C) = [tex]\frac{5736888}{1164252608}[/tex]
P(A and B and C) = 0.0005
c) Probability of an D or an F is the sum of probabilities of an D and of an F:
P(D or F) = [tex]\frac{269}{1052} +\frac{130}{1052}[/tex]
P(D or F) = [tex]\frac{399}{1052}[/tex]
P(D or F) = 0.379
d) Probability of an A or B is also the sum of probabilities of an A and of an B:
P(A or B) = [tex]\frac{68}{1052} +\frac{258}{1052}[/tex]
P(A or B) = [tex]\frac{326}{1052}[/tex]
P(A or B) = 0.31
Answer these correctly for me please...
troll and get reported
Answer:
on the left: y = -4x - 2 and y = 1/3x - 2
on the right: 3s + 1c = 3 and 3s + 2c = 52
Is (2,4) a solution of 3x - y = 2?
yes because when filling in the unknown (3*2-4=2) gets you the answer of 2.
Answer: Yes, it is a solution.
Step-by-step explanation:
3(2)=6-4=2
An angle measures 54.4 less than the measure of it's complementary angle
Answer:
4th of August is the murderer of our
Step-by-step explanation:
6th 5th of the books is the murderer murderer
What is the value of x in the figure?
(2.5 x 104) – (1.4 x 10')
A) 2.36 x 104
B) 2.48 x 104
C) 23.6 x 103
D) 1.1 x 101
Answer:
The answer is 246 simplified so A
Step-by-step explanation:
determine if the sequence is arithmetic. if it is find the common difference. -34,-64,-94,-124
Generally speaking, arithmetic sequences have the form:
an=a1+(n-1)*d
Where:
an=the nth term in the sequence
a1=the 1st term in the sequence
n=the number of terms in the sequence
d=the difference between consecutive terms (i.e. d=an-an-1=a2-a1=a3-a2, etc.)
The SUM of the terms of an arithmetic sequence, notated Sn, is given by:
Sn=[n/2]*[2a1+(n-1)*d]
So if n=8 then:
a8=a1+7d=63
And if there are 94 terms in the sequence then:
S94=[94/2]*[2a1+93d]=47*(2a1+93d)=94a1+4371d=1000
So this is a system of equations where:
{ a1 + 7d = 63 (Multiply this first equation by -94 on both sides and add to second equation)
{ 94a1 + 4371d = 1000
-94a1 - 658d = -5922 (Add this new equation to second equation)
Therefore:
3713d = -4922
So:
d = -4922/3713
Answer: arithmetic / -30
Step-by-step explanation: This is an arithmetic sequence.
The reason I know that is because the same number is being
added each time to get the next term in the sequence.
In this case, we are adding -30 each time to reach the next term.
So the common difference is -30.
If x = -8, y = 7, and z = -11. Evaluate each expression :-X - y
Answer:
the number in front of a term is called a convention examples of single terms three times is a single term the three contents so then it would probably be 24 because 7284 time be planted in their preferred method to show multiplication example 3 evaluate the expression and then you go wide equals 6 and 24 hope this helps it's an example not the real answer though LOL
Answer:
-x-y=1
Step-by-step explanation:
just plug in the numbers.
-x-y
-(-8)-7
8-7
1
What is 7 1/5 as a decimal?
A scale drawing of a mural uses the scale 2 centimeters (cm):10 meters (m). Another scale drawing of the same mural uses the scale 2 cm:4 m. In the first scale drawing, the mural is 7 cm long. What is the length of the mural in the second scale drawing?
Answer:
The answer that you are going to get is 23.56
Step-by-step explanation:
You solve that by multiplying all the numbers and then you divide by 2.
please help i will give brainliest
8. A living room wall is 13 feet long. If the perimeter of the rectangluar living room is 56 feet long, what is the length of the other wall in the living room?
Answer:
Step-by-step explanation:
A living room wall is 13 feet long. If the perimeter of the rectangular living room is 56 feet long.
The formula for the perimeter of the rectangular living room =
P = 2(L + W)
P = 2L + 2W
L = Length = 13 feet
W = Width
P = 56 feet
56 = 2 × 13 + 2 W
56 = 42 + 2W
56 - 42 = 2W
14 = 2W
W = 14/2
W = 7
The width of the rectangular room is 7 feet long
A rectangular room would have 4 walls
Factor each of the following expressions into two binomials.
1.x^2-10x+24
2.x^2-12x+27
3.x^2-13x+36
4.x^2-5x-14
5.x^2+x-20
6.x^2-3x-40
7.x^2+2x-48
8.x^2+10x-24
9.x^2-7x-44
10.x^2+x-2
11.x^2+2x+1
12.x^2-x-6
what is one and nine thousandths. in standard form
Answer:
1 9/1000
Step-by-step explanation:
Answer:
1.009
Step-by-step explanation:
what is 690 multiplied by 1/4?
Answer: Your answer would be 172 1/2
Step-by-step explanation: Hoped this helped you!!!
What are the steps to graphing y=x+5
Answer:
put in the y int- which is 5 and then the slope which is 1/1
Step-by-step explanation:
Rewrite the function f of x equals 6 times one fourth to the 2 times x power using properties of exponents. PLEASE I NEED HELP
Answer:
the third one
Step-by-step explanation:
........
Answer: C
Step-by-step explanation:
Find the value of h(-67) for the function below.
h(x) = -49x − 125
A. 3,283
B. 3,158
C. -3,408
D. -1.18
Answer:
B. 3158Step-by-step explanation:
Given function:
h(x) = -49x − 125Finding h(-67)
h(-67) = -49(-67) - 125 = 3283 - 125 = 3158Correct option is B.
Concepts:
FunctionsAnswer: B. 3158
We know:
h(x) = -49x − 125
Finding h(-67)
h(-67) = -49(-67) - 125 = 3283 - 125 = 3158
ANSWER = 3158/B
I will give brainliest just help please come on:)
Answer:
have watch a video yet if you have not it will help you on it
Step-by-step explanation:
Question 1
Which choice shows a 90° clockwise rotation of the figure about the point P?
Answer: BRAINLIEST PLEASE
first question welcome to brainly tha world of trolls thanks for the free pionts ............ hehehe im kidding here is the real answer. The first one
Step-by-step explanation:
i took the test
A rocket is launched with an initial upward velocity of 320 feet per second from an initial height of 15 feet.
The function h (t) = -1672 + 320t + 15 models the height of the rocket, in feet, t seconds after it was
launched. For how many seconds is the height of the rocket greater than or equal to 1.039 feet?
Answer:
The height of the rocket is greater than or equal to 1.039 feet during first 19.936 seconds.
Step-by-step explanation:
The height of the rocket launched from the ground is modelled after the following expression:
[tex]h(t) = -16.087\cdot t^{2}+320\cdot t +15[/tex] (1)
Where:
[tex]t[/tex] - Time, measured in seconds.
[tex]h[/tex] - Height, measured in feet.
After a careful reading to the statement, we translate all relevant information into the following mathematical inequation:
[tex]-16.087\cdot t^{2}+320\cdot t +15\ge 1.039[/tex] (2)
After some algebra, we get the equivalent inequation:
[tex]-(16.087\cdot t^{2}-320\cdot t -13.961)\ge 0[/tex]
[tex]16.087\cdot t^{2}-320\cdot t -13.961 \le 0[/tex]
[tex](x-19.936)\cdot (x+0.044)\le 0[/tex]
Which means that the following conditions must be observed to satisfy the inequation above:
[tex]x-19.936\le 0\,\land\,x+0.044\ge 0[/tex]
[tex]x\le 19.936\,s\,\land\,x\ge -0.044\,s[/tex]
[tex]0\,s\le x \le 19.936\,s[/tex]
The height of the rocket is greater than or equal to 1.039 feet during first 19.936 seconds.
1+(2)(3)(4)=
HELP ME PLEASE
Answer:
25
Step-by-step explanation:
1+(2)(3)(4)
=1+(6)(4)
=1+24
=25
Hope this helps!
Answer: The answer would be 25
Step-by-step explanation: So the first thing you do, is multiply each number in parentheses first. So 2 mulitplied by 3 is 6. Then multiply 6 by 4 to get 25. Then add 1 to 24, to get 25. Hoped this helped