Answer:
Step-by-step explanation:
Please help im running out of time:(
One train is traveling 120 m with a velocity of 52 km/h and a
second train is traveling in the opposite direction with a
velocity of 20 km/h. How long will it take for them to
completely pass one another?
Answer: It took the train 11 s to completely pass the other.
11 seconds it takes for them to completely pass one another if one train is travelling 120 m with a velocity of 52 km/h.
What is distance?Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.
We have:
One train is travelling 120 m with a velocity of 52 km/h.
A second train is travelling in the opposite direction with a velocity of 20 km/h.
Here, the length of the second train is not given:
We are assuming the length is 100 m
Relative velocity = 52+20 = 72 km/h = 20 meter/seconds
Total distance: = 120 + 100 = 220 m
The time = 220/20 = 11 seconds
Thus, 11 seconds it takes for them to completely pass one another if one train is travelling 120 m with a velocity of 52 km/h.
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There are seven members of a jazz club who are listed below. A concert director can choose some or all of them to be part of a large show. He must choose at
least one of them
Carol, Felix, Gina, Joe, Kate, Noe, Rose
In how many different ways can the director choose the members for the show? (The order the members are chosen doesn't matter.)
Help pls! I need help to finish :(
No Links!
what is the product of 4/5 and 6/7
Express the following as a single fraction in its simplest form: 12/y x y/3x
Answer:
by cancellation method we can cancel both the y's
so the leftover digits are, 12/3x
when simplifying, we will get 4/x
∴ the final answer is 4/x
hope this answer helps you.....
If you are facing South-west, you should turn ______degree anti-clockwise to face North ?
Answer:
You should turn 225 degrees anti-clockwise to face North.
In 1906, Colombia experienced an intense earthquake with a magnitude of 8.8 on the Richter scale. In 1995, Egypt experienced an earthquake that measured 7.3 on the Richter scale. Compare the intensities of the two earthquakes. Use a logarithmic model to solve. Round to the nearest whole number.
Answer:
The intensity of the 1906 earthquake was about 32 times the intensity of the 1995 earthquake.
Step-by-step explanation:
The earthquake with a magnitude of 8.8 is 178 times stronger than the earthquake that measured 7.3.
What is logarithm?A logarithm is the power to which a number must be raised in order to get some other number.
Given that, there are two earthquakes of magnitude 8.8 and 7.3
The energy released is given by:
[tex]log_{10} E = 4.4+1.5M[/tex]
For 8.8
E1 = 3.981071705534X10^17
For 7.3
E2 = 2.238721138568X10^15
E1/E2 = 3.981071705534X10^17/2.238721138568X10^15 ≈ 178
Hence, The earthquake with a magnitude of 8.8 is 178 times stronger than the earthquake that measured 7.3.
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Orphia bought a coffee table for $200. The sales tax on the purchase was $19. Find the sales tax rate (in %).
Answer:
9.5%
Step-by-step explanation:
19/200=.095 or 9.5%
The probability that a randomly selected student is a girl is 0.52, and the probability that a student is a girl and in an art class is 0.20. Giver that a student is a girl, what is the probability she is in an art class?
0.20
0.32
0.38
0.52
Answer: The answer is 0.38
Step-by-step explanation:
Well, everything is given, as stated in the question "the probability that a student is a girl and in an art class is 0.20."
It's given that the probability that a student is a girl is 0.52.
However, in the question, it said that it's given a student is a girl.
You have the probability that a student is a girl and in art class, so you need to find what 0.52 was multiplied by which would be the probability of someone being in art class. Knowing this you can do 0.20 / 0.52 to get 0.38.
Write a function to describe the following scenario.
Emily plants a rosemary bush that starts at 5
centimeters in height and grows 3 centimeters
per year. How high will the rosemary be after a
certain number of years?
y = [?]x +
Answer:
y(x) = 3x + 5
Step-by-step explanation:
Since the rosemary grows by the same number of centimeters each year, this situation is modeled by a linear function.
Height starts at 5 meters and grows 3 centimeters per year.
This means that the height after a certain number of years, represented by x, is given by:
y(x) = 3x + 5
what is the perimeter of this red polygon ??
Answer:
26
Step-by-step explanation:
4+4+4+2+2+3+3+4=26
How I found the Other lengths, REASON :
Other pair of lengths are tangents to circle from a single point so their lengths are equal.
For each set of measures, choose whether the conditions determine a unique triangle, more than one triangle, or no triangle.
Answer:
the first one is "1 triangle" the second one is "no triangles" the third one is "no triangles and the fourth one is "1 triangle"
Step-by-step explanation:
I got it right one edge
From conditions 1, 4 the triangles can be formed and from conditions 2,3 the no triangles can be formed.
What is a triangle?A triangle is a flat geometric figure that has three sides and three angles. The sum of the interior angles of a triangle is equal to 180°. The exterior angles sum up to 360°.
For the given situation,
The table shows the set of measures, we need to determine which condition can make triangles.
Condition 1:
AB = 15 cm, BC = 20 cm, ∠B = 40°
By SAS criteria, this condition can form a triangle.
Condition 2:
AB = 20 cm, BC = 15 cm, ∠C = 40°
Here the condition is Side-Side-Angle. There is no such criteria, so no triangle can be formed.
Condition 3:
BC = 10 cm, BC = 5 cm, ∠A = 20°
Here side length of BC alone is given. With one side and one angle, no triangle can be formed.
Condition 4:
AC = 5 cm, BC = 10 cm, AB = 14 cm
Here three sides are given, so we can form a triangle.
Hence we can conclude that from conditions 1, 4 the triangles can be formed and from conditions 2,3 the no triangles can be formed.
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You go to the quad on a windy day to fly a kite. You have released 40 feet of string. The string makes an angle of 36° with the ground. How high is the kite in the air? Round your answer to the nearest tenth. Show your work!.
Answer:
23.51m is the height
Step-by-step explanation:
the kite creates a triangle. 40•sin(36°) = 23.51141009 and round it to 23.51
calcula b para que la recta 2x + by = - 11 pase por el punto (-2, 5)
Answer:
i dont kown sorry i hope i helped :)
Step-by-step explanation:
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Car A travels 18 miles every 20 minutes. Car B travels 13 miles every 12 minutes. Which Statement best compares how far the two cars can travel in an hour?
What is a six sided shape called?
Answer:
hexagon
Step-by-step explanation:
What is the least common multiple of 9 and 15?
Answer:
45
Step-by-step explanation:
Find prime factors
9 = 3 x 3
15 = 3 x 5
3 x 3 x 5 = 45
The Smith family is building a deck that is 200 square feet in area. What are the
possible lengths and widths the deck could have?
What is the y-intercept of the graph of h(x) = 2^x - 4
Answer:
If I remember correctly isn't it -4
Step-by-step explanation:
I am pretty sure that's it
what does 14a and 5b and 2a and 10b mean
Answer:
16a+15b
Step-by-step explanation:
Just like addition
Answer:
They are variables
Step-by-step explanation:
zhsineidhwvd
can someone help me on this?
Answer:
Step-by-step explanation:
Need help!! ASAPP!
With number #4
thx <3
Answer:
Clean and Bright
Step-by-step explanation:
For soapy suds, you would do 13×12, would would give you only 156 sq inches. However, with Clean and Bright, you would do 9×13×8 since it is three dimensional. This would give you 936 cubic inches, meaning it holds the most detergent.
What's 2+2 I don't know what to do
Answer:
2+2 is 4
Step-by-step explanation:
plz mark me brainest answer
Will paid $2.73 for 3.5 pounds of bananas. What was the cost per pound of the bananas?
stuck on this one.
Answer:
0.78¢
Step-by-step explanation:
if 3.5 lbs of bananas is $2.73, then we need to divide each side by 3.5 to get 1 lb of bananas
1 lb = 0.78¢
To check our work, we can do 0.78x3.5 = 2.73
Hope this helps! Please mark Brainliest if this helped :)
The label of a snack says it has 530calories per 20ounces.
Answer:
can you just mark me brainlest pls
Step-by-step explanation:
Given the diagram below, what is mD?
Answer:
A
Step-by-step explanation:
Answer:
A. 72
Step-by-step explanation:
There are two ways to solve this problem. First of all, this quadrilateral is a trapezoid because the top two angles are congruent and there is one pair of parallel lines. One way to solve the problem is to remember all trapezoids have a measure of 360. So, mD=360-(108+108+72); this equals 72. Additionally, in a trapezoid, the bottom two angles are always congruent; therefore, angle D must equal 72 degrees.
Please help me fast.
Question 1 (4 points)
(07.07 LC)
A cheetah runs at a speed of 50 miles for every hour. If the distance traveled, in miles, is d and time, in hours, is t, which equation shows the relationship between d and t? (1 point)
a
t = 50d
b
d = 50 + t
c
d = 50t
d
t = 50 + d
Answer:
d/t=speed
Step-by-step explanation:
6.632.512 what is the value 3
Answer:
HEHEHEH I NEED POINTS-
Step-by-step explanation:
which statement about the relationship between the graph f and the graph of g(x)=7x^2 is true
Answer:
where is F
Step-by-step explanation:
What is the approximate average rate of change for the function f(x)
from x = 3 to x = 6?
12(1.25)
Answer:
b
Step-by-step explanation:
