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3 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]3 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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Simplify for a = 3, b= -4 and c=-1.<br> 16a - 3c + 5b =

-Dominant- [34]

Answer:

Step-by-step explanation:

16(3)-3(-1)+5(-4)

48+3-20

51-21

5 0

3 years ago

You use 4 gallons of water on 30 plants in your garden. At that rate, how much water will it take to water 45 plants? Math item

lesya [120]

Hey!

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Answer:

6 gallons.

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Solution and Explanation:

30 / 4 = 7.5

You can water 7.5 plants with 1 gallon of water.

45 / 7.5 = 6

You can water 45 plants with 6 gallons of water.

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Hope This Helped! Good Luck!

6 0

3 years ago

Which unit of measure would be appropriate for the area of a soccer field that is 105 m long and 67 m wide

liq [111]

An appropriate unit of measurement for the area of the a soccer field is meters. It could never be miles, because that's way too long. Or millimeters, because that's way too short. Soccer fields are usually meters and meters long, so a unit of measure that is appropriate for an area of a soccer field is meters.

6 0

3 years ago

Sara sold half her comic books and then brought 9 more.She now has 15.

Andrew [12]

_6
(15-9)×2=12, she began with 12 comic books, X=12

5 0

2 years ago

Compare the perimeters of the two regular figures. Which statement is true?

adell [148]

Answer:

(A). The perimeter of the octagon is greater than that of the hexagon.

Step-by-step explanation:

Since, hexagon consists of 6 sides and 6 angles, thus the measure of one angle of the hexagon will be= $\frac{(n-2){\timeS}180^{\circ}}{6}$

= $\frac{(6-2){\timeS}180^{\circ}}{6}$

= $\frac{(4){\timeS}180^{\circ}}{6}$

= $120^{\circ}$

Now, since MQ is the angle bisector of the one of the angle of the hexagon, therefore ∠QMP=60°.

Now, from ΔQMP. we have

$\frac{MP}{MQ}=cos60^{\circ}$

$MP=\frac{1}{2}$

Thus, the perimeter of the hexagon is:

$P=12{\times}MP$

$P=12{\times}\frac{1}{2}$

$P=6 units$

Thus, the perimeter of hexagon is 6 units.

Also, Since, octagon consists of 8 sides and 8 angles, thus the measure of one angle of the octagon will be= $\frac{(n-2){\timeS}180^{\circ}}{8}$

= $\frac{(8-2){\timeS}180^{\circ}}{8}$

= $\frac{(6){\timeS}180^{\circ}}{8}$

= $135^{\circ}$

Now, since AP is the angle bisector of the one of the angle of the octagon, therefore ${\angle}PAC=cos\frac{135}{2}$ .

From ΔAPC, we have

$AC=cos\frac{135}{2}$

Now, Perimeter of octagon is:

$P=16{\times}cos\frac{135}{2}$

$P=16{\times}0.382$

$P=6.122 units$

Thus, the perimeter of octagon is 6.122 units.

Now, the perimeter of octagon is greater than perimeter of the hexagon, thus option A is correct that is The perimeter of the octagon is greater than that of the hexagon.

4 0

3 years ago