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4 years ago

dylan started working on homework at 5:45 p.m. it took him 1 hour and 57 minutes to complete it what time did

Mathematics

1 answer:

kkurt [141]4 years ago

5 0

I'm assuming its asking what time he finished? I added it up and it seems to be 7:42 pm.

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Find the area of a circle with a diameter of 16.

tangare [24]

Answer:

Step-by-step explanation:

Area of circle:

area = π · r · r

Radius= $\frac{16}{2}$ = 8

$3.14\times { 8 }^{ 2 }$ = 200.96 $cm^2\\$

8 0

2 years ago

He equation sin (40 degree) equals StartFraction b Over 20 EndFraction can be used to determine the length of line segment AC.

Alisiya [41]

Answer:

The value of b is 12.9 cm

The value of a is 15.3 cm

Step-by-step explanation:

see the attached figure to better understand the problem

Find the value of b

we know that

in the right triangle ABC

The function sine of angle of 40 degrees is equal to divide the opposite side to the angle of 40 degrees (AC) by the hypotenuse (AB)

$sin(40\°)=AC/AB$

Solve for AC

$AC=(AB)sin(40\°)$

substitute the given value

$AC=(20)sin(40\°)$

$AC=12.9\ cm$

therefore

The value of b is 12.9 cm

Find the value of a

we know that

in the right triangle ABC

The function cosine of angle of 40 degrees is equal to divide the adjacent side to the angle of 40 degrees (BC) by the hypotenuse (AB)

$cos(40\°)=BC/AB$

Solve for BC

$BC=(AB)cos(40\°)$

substitute the given value

$BC=(20)cos(40\°)$

$BC=15.3\ cm$

therefore

The value of a is 15.3 cm

3 0

3 years ago

Read 2 more answers

In a circle with a radius of 21 5/8 yd, an arc is intercepted by a central angle of 5π6 radians. What is the arc length?

MrRissso [65]

Answer:

I just took the quiz and got it correct :)

Step-by-step explanation:

Look at the image down below, I hope this helps!

8 0

3 years ago

Read 2 more answers

DJ Larissa is making a playlist for a friend; she is trying to decide what 10 songs to play and in what order they should be pla

likoan [24]

The total number of ways are formed is 4.43 x 10^10 by rounding to the hundredths place.

According to the statement

we have given that the some numbers of the songs which are added by the larrisa in her playlist.

And we have to tell the ways which are formed with the help of the combination and permutations.

So, For this purpose we know that the

The first condition we have given that the

"play no more than 4 blues songs" - indicates playlist can contain 0, 1, 2, 3, or 4 blues songs. You need to analyze five different cases and add them up together in the end. From 7 blues songs, you can either "pick" 0, 1, 2, 3, or 4. Since order matters, it's a permutation, not a combination.

Afterwards, it gets tricky. Consider the first case, where we have 0 blues songs. This means that there are 10 spaces for the remaining (3+5+7 = 15) songs, which means that they can be arranged in (7P0 ∙ 15P10) ways.

For the next case, where we have 1 blues songs, it means that there are 9 spaces for the remaining 15 songs, which means that they can be arranged in (7P1 ∙ 15P9) ways. Continue doing this for the cases of 2, 3, and 4 blues songs and add up all the cases together.

And from this way we get the all combinations which are formed.

So, For this purpose

n = (7P0 ∙ 15P10) + (7P1 ∙ 15P9) + (7P2 ∙ 15P8) + (7P3 ∙ 15P7) + (7P4 ∙ 15P6) = 4.43459016×1010,

which rounded to the hundredths place, is 4.43 x 10^10 possible playlists.

So, The total number of ways are formed is 4.43 x 10^10 by rounding to the hundredths place.

Learn more about the combination and permutations here

brainly.com/question/3901018

#SPJ1

8 0

2 years ago

Solve 12 + 6m = 2m. m = =

Shkiper50 [21]

Answer:

-3

Step-by-step explanation:

8 0

3 years ago