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AfilCa [17]

3 years ago

Mathematics

2 answers:

Lyrx [107]3 years ago

8 0

The answer is B..3 1/2 cups

Serhud [2]3 years ago

3 0

The answer is B 3 1/2 cups because when she filled it the sixth time it was already 3 cups and the seventh time was 1/2 cup.

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URGENT PLEASE HELP!!

Yakvenalex [24]

Answer:

13.5

Step-by-step explanation:

speed = distance/time

let the time be x

40 = 9/x

so, x = 9/40

to convert it into minutes,

(9/40)*60 = x

(9*60)/40 = x

540/40 =x

54/4 = x

27/2 = x

13.5 = x

hope this helps :)

4 0

2 years ago

Read 2 more answers

Please show work!!!

ratelena [41]

The answer 81pi is if it asked you to keep the answer in terms of pi.

The second answer is if they wanted pi calculated into the answer.

4 0

4 years ago

Gerald’s bucket lost a total of 8/5 in. of water when the hot summer sun came out. He estimated that he lost 2/15 in. an hour. H

Dahasolnce [82]

Answer:

It took 12 hours to lose the water

Step-by-step explanation:

The total amount of water lost from Gerald’s bucket is inch

The amount of water he estimated to be lost in a single hour is inch

Dividing the total water lost by water lost per hour, we can get the the total number of hours it took to lose the water.

Therefore, it took 12 hours to lose the water.

3 0

3 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

End

astra-53 [7]

Answer:

104 feet

Step-by-step explanation:

To get the height of the lighthouse, we need to take the sine function of the angle
sin4° = 0.07
sin4° = h/1480
⇒ h/1480 = 0.07
⇒ h = 1480 x 0.07
⇒ h = 103.6
⇒ h = 104 feet

6 0

2 years ago