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Sergeu [11.5K]
3 years ago
5

15 POINTS+BRAINLIEST (Hurry now) A train goes past you in 10 seconds and goes past a 100 meter long bridge in 30 seconds. What i

s the length (in meters) and the speed (inm/s) of the train?
Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

speed=3.33m/s

Step-by-step explanation:

speed= distance÷time

3.33 m/s

length = ?

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Step by step explanation
SSSSS [86.1K]

Answer:

only a is the right triangle

Step-by-step explanation:

only a is the right triangle because it satisfies the pythagorean theorem.

a.)

c ^{2}  = a ^{2}  + b ^{2}  \\ 63 = 25 + 38\\ 63 = 63 \\ true

while b,

b.)

c ^{2}  = a ^{2}  + b ^{2}  \\ 60 = 25 + 38 \\ 60 = 63 \\ false

8 0
3 years ago
What am I doing wrong
nalin [4]

Answer:

(4x/3)-3 <=y

Step-by-step explanation:

You should Plot the graph in this manner

5 0
3 years ago
a 24000 gallon pool is being filled at a rate of 40 gallons per minute. at this rate, how many minutes will it take to fill this
ruslelena [56]
<span>First you take 3/4 of the tank (18000 gallons) 
then you have to divide that by 40 to find out how many minutes it will take to get it. 
the answer would be 450 minutes</span><span>i hope that thiss helps you out, have an amazing day!!</span>
4 0
3 years ago
Need help, Write the equation of the line that passes through the points (-2, -3) and (8,3) first in point-slope form, and then
Allushta [10]

Answer:

the slope intercept formula would be: y=3/4x-3. Hope this helps!

Step-by-step explanation:

3 0
3 years ago
Solve for A, need this done in under a half hour please ;-;
jasenka [17]

Answer:

x=30, and angle A equals 132°.

Step-by-step explanation:

Since the angles are alternate-interior, both angles A and B equal the same amount. To figure out the value of <em>x</em>, you'd need to set up your equation like this:

5x-18°=3x+42°

You would need to solve for <em>x</em>, which should equal to 30.

Once you get your <em>x</em>, you need to plug it in into the equation of angle A, which is 5x-18°:

5(30)-18°

150-18°

Angle A = 132°.

3 0
3 years ago
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