MATHEMATICS HIGH SCHOOL

What is the value of the variable?

19b = 38

Answers

Answer 1
Answer: The answer is 2. You divide 19 to sides of the equation, so you will get b=38/19, therefore your final answer is 2.
Answer 2
Answer: 19b = 38

b = 2

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At a quiz competition for every question team A answered correctly team B answered 2 questions correctly. The ratio of the number of questions team A answered correctly to the number of questions team B answered correctly is ___ 1 to1 2 to 1 1to2 2to2

Answers

Answer:

1 to 2

Step-by-step explanation:

If A answers 1 question, B will answer 2 questions, making the ratio 1 to 2

Answer:

The answer is 1 to 2 i did the quiz on flvs

Step-by-step explanation:

A rectangle has an area of 100 cm². The base of the rectangle is 25 cm.What is the height of the rectangle?

4 cm

10 cm

76 cm

2400 cm

Answers

   
\displaystyle\n \bold{A = b * h} \n \n A = 100~cm^2 \n b = 2~ccm\n h = ?\n\n h = (A)/(b) =(100~cm^2)/(25~cm) = \boxed{4~cm}

Solve the following
x^2-2x-24=0
X^2-11+18=0

Answers

Answer:

x=-11

Step-by-step explanation:

The average rate of change of f(x) is given by the formula f(7)-f(3)/4 . Over what interval does this formula give the average rate of change for f(x)?The answer choices are
A. [4,7]
B. [-7,3]
C. [3,7]
D. [3,4]

Answers

Answer:

Option C is correct

[3,7]

Step-by-step explanation:

Average rate of change(A(x)) of f(x) over an interval [a, b] is given by:

A(x) = (f(b)-f(a))/(b-a)

As per the statement:

The average rate of change of f(x) is given by the formula:

A(x) = (f(7)-f(3))/(4)

we can write this as:

A(x) = (f(7)-f(3))/(7-3)

By definition, we have

b = 7 and a = 3

⇒interval = [3, 7]

Therefore, the interval does this formula give the average rate of change for f(x) is,  [3,7]

Answer:

the answer is c


Step-by-step explanation:

7. A cargo train covers 375 km in 15 hours. Find: b) time taken to travel 770 km.​

Answers

Answer:

30 hours 48 minutes

Step-by-step explanation:

Using the relationship

average speed = (distance)/(time) = (375)/(15) = 25 Km / hour

Then

time = (distance)/(speed) = (770)/(25) = 30.8 hours = 30 hours 48 minutes

Answer:

30.8 or 30 hours and 48 mins

Step-by-step explanation:

375 km > 15 Hours

Divide 375 and 15, equals to 25.

So, to proof that 375 is equals to 15 hours, divide 375 and 25 then you will get the answer 15. :)

Now, divide 770 and 25 to get the time taken to travel 770km.

And the answer is 30.8 hrs or... 30hrs and 48mins

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After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals A zero, since no force is necessary to keep it moving.
B twice the force with which it was fired.
C one half the force with which it was fired.
D the same amount of force with which it was fired.
E one quarter the force with which it was fired.

Answers

Answer:

A zero, since no force is necessary to keep it moving

Step-by-step explanation:

Since, the space is friction less, the force exerted by the gun will be enough to  keep the ball going. There will not be any depreciation in the initial force. Hence, the ball continues to move forward without any impediment.

Hence, the correct answer is

A zero, since no force is necessary to keep it moving
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