All categories

3 years ago

A student read the clock at 12:00. Then she read it again at 12:15. How many one degree turns has the minute hand made?

Mathematics

2 answers:

wolverine [178]3 years ago

5 0

Answer

about 15

Step-by-step explanation:

denis-greek [22]3 years ago

5 0

90, from 12 to 3 the minute hand forms a 90 degree angle, have a good day and can u thank, rate, and make me brainliest

You might be interested in

When the variable is on both sides of the equation it is perfectly acceptable to solve each side by itself

UkoKoshka [18]

Your answer should be False

6 0

3 years ago

Sweet t noticed the ratio of long boards so short boards was 1:4 if there were 35 surfboards at the beach,how many were short bo

Tresset [83]

9 of them were short

7 0

3 years ago

Derive the formula for the area of a sector, and then use it to choose all that are correct.

Marina CMI [18]

Answer:

Part A) $A_s=\frac{\pi r^{2}}{360^o}{\theta}$

Part B) option 1,option 4

Step-by-step explanation:

Part A) Derive the formula for the area of a sector

we know that

The area of circle is equal to

$A=\pi r^{2}$

The area of circle subtends a central angle of 360 degrees

using proportion

Find out the area of a sector $A_s$ by a central angle of ∅ degrees

$\frac{\pi r^{2}}{360^o}=\frac{A_s}{\theta}$

$A_s=\frac{\pi r^{2}}{360^o}{\theta}$

Part B) Verify each case

case 1) we have

radius = 5 cm

angle = 120°

area = 26.2 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(5)^{2}}{360^o}{120^o}$

$A_s=26.2\ cm^2$

The given value of area is correct

case 2) we have

radius = 4 cm

angle = 105°

area = 16.7 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(4)^{2}}{360^o}{105^o}$

$A_s=14.7\ cm^2$

The given value of area is not correct

case 3) we have

radius = 6 cm

angle = 85°

area = 23.7 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(6)^{2}}{360^o}{85^o}$

$A_s=26.7\ cm^2$

The given value of area is not correct

case 4) we have

radius = 7

angle = 75°

area = 32.1 cm 2

Find the area of the sector and then compare with the value of the given area

assume

$\pi=3.14$

substitute the given values

$A_s=\frac{(3.14)(7)^{2}}{360^o}{75^o}$

$A_s=32.1\ cm^2$

The given value of area is correct

5 0

3 years ago

Five times the sum of a number and 3 is the same as 3 multiplied by 1 less than twice the number

olga nikolaevna [1]

5(3+n)=3(2n-1)
15+5n=6n-3
18=n

7 0

3 years ago

Please help me? I am confused.

Paul [167]

Answer:

Step-by-step explanation:

Take the cubed root of 125. In other words what number is multiplied by itself three times to get 125.

5x5x5= 125

3 0

3 years ago

Read 2 more answers