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melomori [17]
4 years ago
10

Question 6

Mathematics
1 answer:
Zielflug [23.3K]4 years ago
7 0

Step-by-step explanation:

Train 1 speed be 'u'

Train 2 speed be 'v'

And v=2u

Speed=distance/time

Trains going in opposite directions

Relative speed= v-u (as train 1 I slower than train 2)

v-u=600/4

2u-u=150

u=150miles/hour

v=300miles/hour

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Simplify V-16<br> a. -8i <br> b. -4i <br> c. 4i <br> d. 8i
Lena [83]

Answer:

C. 4i

Step-by-step explanation:

√-1 is imaginary number i

Step 1: Write expression

√-16

Step 2: Factor

√-1 · √16

Step 3: Simplify

i · 4

4i

6 0
3 years ago
Number 31<br> Any help please?
Alex73 [517]
2,200*14=30,800
2,000*13=26,000
14+13=27
30,800+26,000=56,000

Your answer is C, 13(:
5 0
3 years ago
What is the volume of a cone with a diameter of 30 feet and a height of 60 feet? Use 3.14 for π.
AysviL [449]

Answer:

14130 ft^3

Step-by-step explanation:

The formula for the volume of a cone of radius r and height h is

V = (1/3)*pi*r^2*h.

Here, V = (1/3)(3.14)(15 ft)^2*(60 ft) = 20*3.14*225 ft^3 = 14130 ft^3


3 0
3 years ago
Need help with this question please help
Bess [88]
If you look closely the area where 3x is congruent to the other side of the 90 degree angle with one part as 0.5x + 34

So
3x + 0.5x + 34= 90

x will be 16

So plug it in

0.5(16) + 34= 42 degrees


And


3(16)= 48 degrees

That left half of the circle is 180 degrees and since we know the angle 3x is 48 degrees we subtract it from 180 to get angle AE


180-48

132 degrees is your answer

7 0
4 years ago
A rectangular solid is dilated by a factor of 0.5. How many times larger is the volume of the resulting solid than the volume of
Katen [24]
The volume of the resulting solid will be twice as large as the volume of the original solid.
7 0
3 years ago
Read 2 more answers
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