<img src="https://tex.z-dn.net/?f=4%20%2B%20%20%7B5%7D%5E%7B2%7D%20" id="TexFormula1" title="4 + {5}^{2} " alt="4 + {5}^{2} "

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guajiro [1.7K]

3 years ago

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Mathematics

2 answers:

Greeley [361]3 years ago

6 0

5 x 5 = 25 + 4 = 29 This is the answer for your equation.

Tju [1.3M]3 years ago

5 0

5 squared is 25. 25+4. Answer is 29

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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

3 years ago

Denise spent $3.45 on snacks every day for 11 days. What is the amount of money Denise spent

musickatia [10]

Answer:

37.95

Step-by-step explanation:

Because 3.45 x 11 is 37.95.

5 0

3 years ago

Read 2 more answers

Please someone help me

Vanyuwa [196]

1.
1/4 is less then 2/4 or 1/2so if the denominator is equal it will be easier to multiply

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3 years ago

Is 3x^2-5x^4+2x-12 a polynomial

ivanzaharov [21]

Yes it is a polynomial .

The degree of polynomial is 4 and there is no power as a fraction or negative integer

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Answer:

Step-by-step explanation:

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