Hi there!
[tex]\large\boxed{-12,600 N}[/tex]
Recall that the equation to calculate force is:
F = m · a where m = mass, a = acceleration, and F = net force.
Since we are given the velocity, and time needed to stop, we can calculate the acceleration using the following kinematic equation:
vf = vi + at
The initial velocity is 36 m/s and the final velocity is 0 m/s, therefore:
0 = 36 + at
Move 36 to the other side and plug in the given time:
-36 = 4a
Divide both sides by -4 to find a:
-36/4 = a
a = -9 m/s².
Since the acceleration is -9 m/s² and the mass is 1400 kg, use the above force equation to solve:
F = -9 × 1400 = -12600 N. (negative refers to the force working in the opposite direction of the car's travel. If simply needing the magnitude of the force, it would be 12600 N)
Gibson (1986) asked a sample of college students to complete a self-esteem scale on which the midpoint of the scale was the score 108. He found that the average self-esteem score for this sample was 135.2, well above the actual midpoint of the scale. Given that the standard deviation of self-esteem scores was 28.15, what would the z score be for a person whose self-esteem score was 101.6
Answer:
The z-score for a person whose self-esteem score was 101.6 would be of -0.227.
Step-by-step explanation:
Z-score:
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Gibson (1986) asked a sample of college students to complete a self-esteem scale on which the midpoint of the scale was the score 108.
This means that [tex]\mu = 108[/tex]
The standard deviation of self-esteem scores was 28.15
This means that [tex]\sigma = 28.15[/tex]
What would the z score be for a person whose self-esteem score was 101.6
This is Z when X = 101.6. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{101.6 - 108}{28.15}[/tex]
[tex]Z = -0.227[/tex]
The z-score for a person whose self-esteem score was 101.6 would be of -0.227.
HELP FAST!! please help me i need help really bad thank you i will give u the brainly answer
Answer:
B.
Step-by-step explanation:
2.4% = 0.024
Answer:
B
Step-by-step explanation:
Please Help Geometry Question, I will mark brainliest, also answer is a simplified fraction or whole number
hope u get it!!!!
btw please check the answer whether it is 3 or 2÷7
why is 2 × 3/4 less than 2
Answer:
becuase 2*3 is 6, and 2*4 is 8, and when you simplfy it is 1 and 1/2, which in decimal form is 1.5, making it less than 2
Answer:
Is 2/4 smaller than 2/3? These are the same questions with one answer.
To get the answer, we first convert each fraction into decimal numbers. We do this by dividing the numerator by the denominator for each fraction as illustrated below:
2/4 = 0.5
2/3 = 0.667
Then, we compare the two decimal numbers to get the answer.
0.5 is less than 0.667.
Therefore, 2/4 is less than 2/3 and the answer to the question "Is 2/4 less than 2/3?" is yes.
i think this will help
A company makes 140 bags.
37 of the bags have buttons but no zips.
38 of the bags have zips but no buttons.
38 of the bags have neither zips nor buttons.
How many bags have zips on them?
pls hurry i don’t need a explanation just a answer
Answer:
Surface area of the triangular prism = 368 m²
Step-by-step explanation:
Surface area of the triangular prism = Area of the triangular bases + Area of the lateral sides
Area of the triangular base = [tex]\frac{1}{2}(\text{Bases})(\text{Height})[/tex]
= [tex]\frac{1}{2}(12)(8)[/tex]
= 48 m²
Area of the lateral sides = (Perimeter of the base) × Height
= (10 + 10 + 12)×10
= 320 m²
Surface area of the triangular prism = 320 + 48
= 368 m²
Therefore, surface area of the triangular prism = 368 m²
Ahmed multiplies 8 by 1.15. Which number he is trying to find?
Answer:
9.2
Step-by-step explanation:
8×1.15 = 9.2
I think..
Question:
Ahmed multiplies 8 by 1.15. Which number is he trying to find?
______________________________________________
Solution:
On multiplying 8 by 1.15, we get,
= 8 * 1.15
= 1¹ . 1⁴ 5
* 8
9 . 2 0
To the power 1 and 4 show that 1 and 4 carried over.
Hence the number he is trying to find is 9.20 or 9.2.
What is the solution to the following equation? X +(-13) = -5. A. X= 18 B. X = 8 C. x -18 D. X = -8
x + (-13) = -5
x - 13 = -5
x = -5 + 13
x = 8
What is the radius of the circle described by the equation (x+3)+(y - 4)² = 75?
Answer:
Step-by-step explanation:
radius = √75 = 5√3 ≅ 8.66 units
Plzzz help I will mark Brainlyest
Answer:
6
Explanation:
the sum of all four angles in a quadrilateral is 360°. thus, to find the angle ∠JML, we need to subtract the values of the other angles from 360° as such:
360° - 66° - 74° - 110° = 110°
the total value of angle ∠JML is 110°.
now, since ∠JML is equal to 17x + 8, we can subtract 8° from 110° to get 102°. following that, we can divide 102° by 17 which yields us the result of 6. hence, we now know that x = 6.
Use a half-angle formula to find the exact value of the expression.
Step-by-step explanation:
The answer is
[tex] \sqrt{2} - 1[/tex]
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can someone teach me how this goes? geometry , inscribed angles but circles
Answer:
60
Step-by-step explanation:
So basically all you need to know for this one is that when there is an inscribed angle, the angle measure is 1/2 of the measure of the arc for that angle.
That might sound confusing, but an example from the picture is that angle ABC will be half of arc AC. This means that angle ABC is 1/2 of 120 = 60 degrees.
The answer is 60 degrees.
PLEASE HELP!!!
You want to find the value of x based on the information in the given image.
Which equation is NOT a correct equation to solve for the value of x?
A. x = 180/60
B. x = 3
C. 13x + 33x + 14x = 180
D. 13x + 33x + 14x = 90
Answer:
D. 13x + 33x + 14x = 90
the angles have to add up to 180 degrees (supplementary), not 90 (complementary). all the other equations would give you the correct answer.
how do you write f(x)=2x² -8x+6 in factored form ?
Answer:
Step-by-step explanation:
[ x^3 + x^2 ] + [ x^2 - 5x - 6 ] =
x^2 ( x + 1) + (x + 1) ( x - 6) =
(x + 1) ( x^2 + x - 6) =
( x + 1) ( x + 3) ( x - 2)
Maybe this?
Which choice is more than 12 but less than 13?
A-√170
B-√150
C-√144
D-√140
Determine if the triangle are similarity side-side-side similarity
HELP WILL GIVE BRAINLIEST IF CORRECT
help me please thanks
Answer:
325m = c
Step-by-step explanation:
Each meeting room has 325 chairs.
Since we don't know how many meeting rooms there are, the number is replaced with the variable, m.
An equation is a problem with an equals sign so you need to put what it would equal.
Since you don't know how many meeting rooms there are you use the variable, c which represents the total number of chairs.
a crew of highway workers paved 1/5 mile in 1/8 hour. if they work at the same rate, how much will they pave in one hour?
Answer:
2/5
Step-by-step explanation: The easiest approach is to realize that one hour is 3 times longer than
20 minutes. The longer the time, the more they will pave
Just answer number 4 I WILL GIVE BRAINLIEST!
Answer:
B is correct
Step-by-step explanation:
2, 4, 6, 7, 6, 6, 6,3 What is the Mean? What is the Median? What is the Mode? What is the Range?
Answer:
Mean: 5
Median: 6
Mode: 6
Range: 5
hope that helps
Step-by-step explanation:
Mean = 5
Median = 6
Mode = 6
Range = largest no.- smallest no.
= 7-2 = 5
Eight adults are surveyed and asked how many credit cards they possess. Their responses are 4, 0, 3, 1, 5, 2, 2, and 3. Complete the table below.
x
x Overbar
x minus x Overbar
(x minus x Overbar) squared
4
2.5
0
2.5
3
2.5
1
2.5
5
2.5
2
2.5
2
2.5
3
2.5
Using the formula for standard deviation
Sigma = StartRoot StartFraction Sigma-summation (x minus x Overbar) squared Over n EndFraction EndRoot
find the standard deviation for the data in the table.
a. StartRoot 0 EndRoot
b. 0
c. 2.25 almost-equals 1.5
d. 2.25
Answer:
the answer is c
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
PLEASE HELP
I will give brainliest to right answer
Answer:
I'm pretty sure it is D because they're not super close to the line they're more spread out but I'm not rly sure
A square sandbox has sides that are 10 feet long. What is the sandbox's area?
Answer:
0.0929
Step-by-step explanation:
thats the answer
What is the area of a quarter circle with a radius of 40 cm?
Answer:
A≈5026.55cm²
Brainliest please
Question 16
4 Points
Using the formula 1 = PRT, find I when P = 3634, R = 6% and T = 7. Round your answer to the nearest penny. Enter only the value
without the $.
Round your answer to 2 decimal places.
Add your answer
Which statement best describes g(x) = 3 x + 6 - 8 and the parent function f(x) = 3x ?
The domains of g(x) and f(x) are the same, but their ranges are not the same.
The ranges of g(x) and f(x) are the same, but their domains are not the same.
The ranges of g(x) and f(x) are the same, and their domains are also the same.
The domains of g(x) and f(x) are the not the same, and their ranges are also not the same.
Answer:
The answer is C: the ranges of g(x) and f(x) are the same, and their domains are also the same.
Step-by-step explanation:
Just took the test on edge!! :)
Option C The ranges of g(x) and f(x) are the same, and their domains are also the same is correct.
What is domain?
List of values of x an equation can satisfy is called Domain.
What is range?
List of values y the function can generate is called range
For example, f(x)=x
it can satisfy real domain i.e. x∈R
and range is R
g(x) = 3 x + 6 - 8 and f(x) = 3x
Domain for both the function is R
Both the function can satisfy all the real numbers, so its range is also R.
Therefore,Option C The ranges of g(x) and f(x) are the same, and their domains are also the same is correct.
Learn more about domain and range,
https://brainly.com/question/2264373
#SPJ2
find the ratio 3600sec is to 2hours
Answer:
30:1
Step-by-step explanation:
underneath barbed wire. She will have to crawl underneath barbed wire between the next two checkpoints (E and F) as well.
What are the coordinates of Checkpoints E and F if EF⎯⎯⎯⎯⎯⎯⎯⎯ is located at CD⎯⎯⎯⎯⎯⎯⎯⎯’ location in a 180∘ rotation of the course?
Select two answers: one for Checkpoint E and one for Checkpoint F.
F(3,2)
E(4,−5)
F(3,−2)
E(−4,5)
E(−4,−5)
F(−3,2)
Answer:
did you get any of them
Step-by-step explanation:
A spinner has 3 equal sections that are purple, green, and blue. What is the probability of not landing on blue?
Answer:
P(not landing on blue section)=2/3
Step-by-step explanation:
Not landing on blue section = landing on one of the other sections
the remaining sections are 2 each one has a P=1/3
2 × 1/3 = 2/3
Answer:
66%
Step-by-step explanation:
2 divided by 3= 0.666666666 which is then converted to percent (66%)