All categories

3 years ago

A store display rotates 40 times every half hour. How many times will the display rotate in 4 hours?

1 answer:

5 0

A store display rotates 40 times every half hour i.e 30 minutes
Thus, by simple calcultion, we say,
Therefore, the store display rotates 80 times in 1 hour i.e. 60 minutes
Now,
Thus, the strore display will rotate 80*4 = 320 times in 4 hours

therefore, the answer is 320 times in 4 hours

You might be interested in

A house on the market was valued for 409,000

Nana76 [90]

I’d need to know the question to answer this.

5 0

3 years ago

What is MN? Question 10 options: 36 23 6 4

vova2212 [387]

Answer:

I got 23 so I am not sure sorry

7 0

3 years ago

Plzzz help What is the distance between P(-3, -2) and Q(5, -2)?

Yuri [45]

Well first, you have to know the distance formula. You plug the coordinates into it and you get the answer.

$\sqrt(-2 + 3) ^{2} + (-2 - 5) ^{2}$

√1² + -7² = d

d = 7.1

6 0

3 years ago

Question 6 of 6

Bezzdna [24]

$\huge \boxed { \sf \: Answer}$

We have to use the formula:

$(ab) ^{n} = {a}^{n} {b}^{n}$

So,

$(5 \times 9) ^{12} \\ = {5}^{12} . 9^{12}$

Also, it will be

$45^{12}$

Hope you could understand.

If you have any query, feel free to ask.

6 0

2 years ago

Find all values of c in the open interval (a, b) such that f'(c)=(f(b)-f(a))/(b-a)

timama [110]

<h3>Answer: c = 7/4</h3>

================================================

Work Shown:

Compute the function value at the endpoints

$f(x) = \sqrt{4-x}\\\\f(-5) = \sqrt{4-(-5)} = 3\\\\f(4) = \sqrt{4-4} = 0\\\\$

With a = -5 and b = 4, we have

$f'(c) = \frac{f(b)-f(a)}{b-a}\\\\f'(c) = \frac{f(4)-f(-5)}{4-(-5)}\\\\f'(c) = \frac{0-3}{9}\\\\f'(c) = -\frac{1}{3}\\\\$

So,

$f(x) = \sqrt{4-x}\\\\f'(x) = -\frac{1}{2\sqrt{4-x}}\\\\f'(c) = -\frac{1}{3}\\\\-\frac{1}{2\sqrt{4-c}} = -\frac{1}{3}\\\\$

Use algebra to solve for c

$-\frac{1}{2\sqrt{4-c}} = -\frac{1}{3}\\\\\frac{1}{2\sqrt{4-c}} = \frac{1}{3}\\\\3 = 2\sqrt{4-c}\\\\2\sqrt{4-c} = 3\\\\\sqrt{4-c} = \frac{3}{2}\\\\4-c = \frac{9}{4}\\\\c = 4-\frac{9}{4}\\\\c = \frac{16-9}{4}\\\\c = \frac{7}{4}\\\\$

6 0

2 years ago