2c + 7.5 = 6.2 - 3c a. 0.26 b. -0.26 c. -2.74 d. 1.3

PPPPPPPPPPLLLLLLLLLLZZZZZZ HELP! A. B. C. D.

dangina [55]

Answer:

B

Step-by-step explanation:

The square root of 21 will be halfway between 4 and 5. 4.58 ~ 4.6

The square root of 17 will be closer to 4 than 5. 4.12 ~ 4.1

3Pi/2 will beclose to 5 than 4. 4.71 ~ 4.7

4.1, 4.6, 4.7

That is B.

4 0

2 years ago

If we digitized music in stereo using 24 bits per sample and sampling the analog signal 96,000 times per second, this would gene

ryzh [129]

The bit stream generated on kilobyte per second would be 2304 kilobytes per second.

Given the Parameters :

Number of bits per sample = 24 bits

Sampling frequency = 96000 times per second

The bit rate = Sampling frequency × Number of bits per sample

The bit rate = 24 × 96000 = 2,304,000 bits per second

Converting bits to kilobytes ;

1 kilobytes = 1000 bits

(2,304,000 bits per second ÷ 1000) = 2304 kilobytes per second

Therefore, the bit stream generated would be 2304 kbps

Learn more :brainly.com/question/18109354

6 0

2 years ago

There are six people at a bus stop. Each person is half the age of the next person in line. The mean age of the group is 21. How

Mice21 [21]

Answer:

The youngest person is 2 years old

Step-by-step explanation:

There are six people at a bus stop.

We are told that:

The mean age of the group is 21.

The total number of people is 6 people

Hence:

The total sum of their ages is 21 × 6

= 126

Each person is half the age of the next person in line.

Let the age of the first person be = x

The age of the second person = x/2

The age of the third person = x/2 ÷ 2 = x/2 × 1/2 = x/4

The age of the fourth person = x/4 ÷ 2

x/4 × 1/2 = x/8

The age of the fifth person = x/8 ÷ 2

x/8 × 1/2 = x/16

The age of the sixth person = x/16 ÷ 2

x/16 × 1/2 = x/32

Hence:

x + x/ 2 + x/4 + x/8 + x/16 + x/32 = 126

Lowest Common Denominator is 32

32x + 16x + 8x + 4x + 2x + x/32 = 126

63x /32 = 126

Cross Multiply

63x = 126 × 32

63x = 4032

x = 4032 /63

x = 64 years

Hence, the age of the first person is 64 years.

The age of the youngest person which is the sixth person is :

x/32

= 64/32

= 2 years

7 0

3 years ago

What is the answer?

lisov135 [29]

Answer:

B is the answer

8 0

2 years ago

Read 2 more answers

Find the exact volume of a cone 6yd height 5yd base

Verdich [7]

Answer:

The exact volume of a cone is 10 yd³.

Step-by-step explanation:

Given:

Height of cone (h) is 6 yd and base (b) is 5 yd.

Now, to get the volume we need to find the radius.

So, to find radius we put the formula of base:

Let the radius be $r$

Base= $\pi r^2$

$b=\pi\times r^{2}$

$5=\pi\times r^{2}$

Dividing both sides by π and using square root on both the sides:

$5\div \pi=(\pi \times r^{2}) \div \pi$

$\frac{5}{\pi}=r^{2}$

$r^{2}=\frac{5}{\pi}-----1$

Now, putting the formula for getting the volume (v) of cone:

Volume = $\pi r^2\frac{h}{3}$

$v=\pi\times r^{2}\times \frac{6}{3}$

$v=\pi\times r^{2}\times 2$

Substituting the value of $r^2$ from equation (1), we get:

$v=\pi\times \frac{5}{\pi}\times 2$

$v=10$ yd³

Volume of cone is 10 yd³

Therefore, the exact volume of a cone is 10 yd³.

8 0

2 years ago