All categories

2 years ago

Please help me out with this

Mathematics

1 answer:

Firdavs [7]2 years ago

6 0

To convert minutes in hours, you have to divide by 60.

We can distribute this division in a smart way: since $60=6\times 10$ , we have

$\dfrac{19.2\times 10^8}{6\times 10} = \dfrac{19.2}{6} \cdot \dfrac{10^8}{10} = 3.2 \cdot 10^7$

You might be interested in

5 cm 3 cm Area = cm Perimeter = cm<br> Need help <br>I'm actually in 4th grade<br>please help

aksik [14]

What shape is it ? Area u just do 5X3 = 15cm2 and perimeter u add all the sides and find the missing sides

5 0

1 year ago

Find area of blue shaded region

RUDIKE [14]

Answer:

$\approx \: 7.33 \: {cm}^{2}$

Step-by-step explanation:

Area of the blue shaded region

$= \frac{ \theta}{360 \degree} \times \pi r_1^2 - \frac{ \theta}{360 \degree} \times \pi r_2^2 \\ \\ = \frac{ \pi\theta}{360 \degree} ( r_1^2 - r_2^2) \\ \\ ( r_1 = 4 \: cm, \: \: r_2 = 3\: cm, \: \: \theta = 120 \degree) \\ \\ = \frac{ 3.14 \times 120 \degree}{360 \degree} ( 4^2 - 3^2) \\ \\ = \frac{ 3.14 }{3} \times 7 \\ \\ = \frac{21.98}{3} \\ \\ = 7.32666667 \\ \\ \approx \: 7.33 \: {cm}^{2}$

8 0

2 years ago

Use cavalieri's principle to a circular pillar candle is 2.8 inches wide & 6 inches tall. find the volume of the candle.

wolverine [178]

The candle has the shape of a cylinder with height H=6 in, and radius of the circular base R= (2.8)/2 =1.4 (in).

The volume of the cylinder is Area(base)*height =

$\pi R^{2} *H=3.14* (1.4)^{2}*6= 37$ (in cubed)

According to Cavalieri's principle, the volume of the candle is equal to the volume of the cylinder we described.

Answer: 37 in cubed

5 0

2 years ago

Mrs. Carothers is considering reserving a room at the

musickatia [10]

65 percent as a fraction is 65/100 as a decimal is 0.65

6 0

2 years ago

Identity each pair of angles as complementary, supplementary, or neither.

CaHeK987 [17]

Answer:

Neither

Supplementary

Step-by-step explanation:

1) 90 + 43 = 133

Since this value does not equate to 90 or 180. The answer is Neither

2) 61 + 119 = 180

Since the answer equates to 180. The answer is Supplementary

3) 90 + 90 = 180

Since the answer equates to 180. The answer is Supplementary

4 0

2 years ago