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2 years ago

Simplify: 3-2 what is this awnser

Mathematics

1 answer:

sweet [91]2 years ago

7 0

Answer:

It is ................................................................. 1

Step-by-step explanation:

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The length of each side of an equilateral triangle is increased by 20%, resulting in triangle ABC. If the length of each side of

kompoz [17]

Answer: Area of ΔABC is 2.25x the area of ΔDEF.

Step-by-step explanation: Because equilateral triangle has 3 equal sides, area is calculated as

$A=\frac{\sqrt{3} }{4} a^{2}$

with a as side of the triangle.

Triangle ABC is 20% bigger than the original, which means its side (a₁) measures, compared to the original:

a₁ = 1.2a

Then, its area is

$A_{1}=\frac{\sqrt{3} }{4}(1.2a)^{2}$

$A_{1}=\frac{\sqrt{3} }{4}1.44a^{2}$

Triangle DEF is 20% smaller than the original, which means its side is:

a₂ = 0.8a

So, area is

$A_{2}=\frac{\sqrt{3} }{4} (0.8a)^{2}$

$A_{2}=\frac{\sqrt{3} }{4} 0.64a^{2}$

Now, comparing areas:

$\frac{A_{1}}{A_{2}}= (\frac{\sqrt{3}.1.44a^{2} }{4})(\frac{4}{\sqrt{3}.0.64a^{2} } )$

$\frac{A_{1}}{A_{2}} =$ 2.25

The area of ΔABC is 2.25x greater than the area of ΔDEF.

7 0

2 years ago

Compute the amount of interest earned in the following simple interest problem.

Mumz [18]

Answer:

Step-by-step explanation:

P = $295

r =7%

t = 270 days = 270/365

Interest = Prt

$=295*\frac{7}{100}*\frac{270}{365}\\\\= 15.28$

= $ 15.28

Amount = 295 + 15.28

Amount = $310.28

4 0

2 years ago

Please help. Answer only if you know the correct answer. I’ll mark you as brainliest if correct.

zavuch27 [327]

Answer:

37 miles an hour

Step-by-step explanation:

you set up a ratio

100/62 on left 60/x on right

cross mult and get 100x=60(62)

100x=3720

x= 37.2

8 0

2 years ago

Read 2 more answers

Is B correct? 10 points!

Lelu [443]

Answer:

Step-by-step explanation:

Yeh definitely its b

5 0

3 years ago

In an election , about 500,000 people voted in all. What could be the exact number of people who voted in the election?

34kurt

A random guess could be 495866 because if you round is to the nearest thousandths it will be 500000

8 0

2 years ago