Ask question

Ask question

All categories

3 years ago

5

it took a submarine 30 seconds to sink 225 feet, moving at a constant speed. The captain wants to know how much feet does he the

submarine sink in a second

1 answer:

icang [17]3 years ago

4 0

Answer:

Dont count me if I'm wrong but if you divide 225 by 30 you get 7.5

So your answer should be 7.5

You might be interested in

At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. The bicyclist head

Mars2501 [29]

So it took an hour an 15 minutes which means the distance traveled is their speed+1/4 of their speed, also any answers that have northbound going faster than 6km/h above south is not right so B and D seems to be out of the picture

4 0

3 years ago

Read 2 more answers

Consider the two expressions 4b(b+1) and (2b+7)(2b-8). Compare their values if b=-3, b=-2, and if b=10. Is it true that for an v

frutty [35]

Answer:

FIRST EXPRESSION:

- If $b=-3$ , the value of $4b(b+1)$ is $24$

- If $b=-2$ , the value of $4b(b+1)$ is $8$

- If $b=10$ , the value of $4b(b+1)$ is $440$

SECOND EXPRESSION:

- If $b=-3$ , the value of $(2b+7)(2b-8))$ is $-14$

- If $b=-2$ , the value of $(2b+7)(2b-8))$ is $-36$

- If $b=10$ , the value of $(2b+7)(2b-8))$ is $324$

Yes, for any value of "b" the value of the first expression is greater than the value of the second expression.

Step-by-step explanation:

Substitute the given values of "b" into each expression and evaluate.

- For the first expression $4b(b+1)$ , you get:

If $b=-3$ → $4(-3)(-3+1)=24$

If $b=-2$ → $4(-2)(-2+1)=8$

If $b=10$ → $4(10)(10+1)=440$

- For the second expression $(2b+7)(2b-8))$ , you get:

If $b=-3$ → $(2(-3)+7)(2(-3)-8)=-14$

If $b=-2$ → $(2(-2)+7)(2(-2)-8)=-36$

If $b=10$ → $(2(10)+7)(2(10)-8)=324$

You can observe that for any value of "b" the value of the first expression is greater than the value of the second expression.

7 0

3 years ago

If the legs of a triangle are 6cm and 5cm, find the area of the triangle

Stels [109]

15 cm^2

A= 5*6/2= 30/2= 15 cm^2

8 0

2 years ago

Read 2 more answers

(b) A basketball player made 2 out of 4 free throws she attempted which is 50%. She wants to know how many consecutive free thro

Dvinal [7]

Answer:

B 75%

Step-by-step explanation:

6 0

3 years ago

Eric jogged 31/4 miles on monday 5 5/8 miles on tuesday and 8 miles on wensday .suppose he continues the pattern for the remaind

Troyanec [42]

The is increasing by 2 3/8
So the answer is 12 3/4 miles on Friday

Hope this helps :)

3 0

3 years ago