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3 years ago

Last friday tony worked for seven and a half hours. Express this time as a fraction of the day.

1 answer:

8 0

I got it to be .3125 or 31%. just convert that to a fraction and you got it. sorry I forget how to put that decimal into a fraction it's been a year:)

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Tomtit [17]

One question, are they congruent figures?

7 0

3 years ago

An equilateral triangle has a perimeter of 48 cm. What is the area?

KiRa [710]

Answer:

$A=64\sqrt{3}\ cm^2$

Step-by-step explanation:

we know that

An <u><em>equilateral triangle</em></u> has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

The perimeter is equal to

$P=3b$

where

b is the length side of the equilateral triangle

we have

$P=48\ cm$

substitute

$48=3b$

solve for b

$b=48/3\\b=16\ cm$

Find the area

The formula of area applying the law of sines is equal to

$A=\frac{1}{2}b^2sin(60^o)$

substitute the value of b

$A=\frac{1}{2}(16)^2sin(60^o)$

$sin(60^o)=\frac{\sqrt{3}}{2}$

$A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})$

$A=64\sqrt{3}\ cm^2$

6 0

3 years ago

Help me pls 20 POINTS

Tema [17]

Answer:

bottom =80m^2

Side =50m^2

triangle = 3 ×8 ×5

6 0

2 years ago

Which of the following represents the cosine of 70 degrees

Westkost [7]

Using a calculator: cos 70 deg = 0.342. Note: it sounds as tho' you were given several answer options. Where are they?

6 0

3 years ago

Von buys a bag of 34 Dog treats he gives his puppy 3 treat a day.How many days will the bag of dog treats last?

makkiz [27]

Answer:

11 days with one treat left over. Or 11.3

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers