2 years ago

What is one way you could construct an argument justifying whether Alisa's conjecture is true?

Mathematics

2 answers:

Vitek1552 [10]2 years ago

8 0

Where are the choices?

Ymorist [56]2 years ago

4 0

Answer:

If you need help you need to post the choices as well

Step-by-step explanation:

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Solve the following proportion x/2 = 8/9

artcher [175]

Answer:

$\frac{x}{2} = \frac{8}{9} \\ 9x = 16 \\ x = \frac{16}{9} \\ x = 1.78$

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2 years ago

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4. Use the distributive property to simplify : 12(2−6).

olasank [31]

Answer:

-48

Step-by-step explanation:

12 x 2=24

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24 - 72 = -48

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A floor is made up of 20 triangular tiles, each with sides 40 cm, 24 cm and 32 cm. Find the cost of polishing the floor at the r

pochemuha

Answer:

$15360\,\,rupees$

Step-by-step explanation:

Let sides of the triangle be $a,b,c$

$a=40\,,\,b=24\,,\,c=32$

Semi-perimeter (s) = $\frac{a+b+c}{2}$

$=\frac{40+24+32}{2}\\ =\frac{96}{2}\\=48$

Area of one tile $=\sqrt{s(s-a)(s-b)(s-c)}$

$=\sqrt{48(48-40)(48-24)(48-32)}\\ =\sqrt{48(8)(24)(16)}\\ =\sqrt{147456} \\=384\,\,cm^2$

So,

Area of 20 tiles $=20(384)=7680\,\,cm^2$

Cost of polishing the floor at the rate of 2 rupees per sq.cm = $7680(2)=15360\,\,rupees$

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2 years ago

Two hundred students are going to dine with the principal as their reward for perfect attendance. A random survey of 25 of these

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Answer:

Step-by-step explanation:

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Can some one answer this ?

earnstyle [38]

This is your answer

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3 years ago