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2 years ago

Which is a perfect square?

Mathematics

1 answer:

velikii [3]2 years ago

4 0

Answer:

6 squared

Step-by-step explanation:

The square root of a perfect square is a rational number.

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Everything else right but just can’t figure that fraction out.

krok68 [10]

Answer: 1/5

Step-by-step explanation: Since there are 5 blue/green marbles in the bag of 20 it would be 5/20 or 1/5.

6 0

2 years ago

How do you do this problems?

rewona [7]

x = 6

Step-by-step explanation:

It's based on similarity of triangles

DEF ~ △XYZ

$\implies \mathsf{ \frac{DE }{ XY } = \frac{EF}{YZ} = \frac{ FD}{ZX}}$

The sides should be taken in order, like the triangles start with DE and XY so, we'll proportionate DE and XY and then the next two sides and so on.

I'm using $\mathsf{ \frac{DE }{XY } = \frac{EF}{YZ} }$ to get the value of x.

[You can use any two fractions out of the three given above. ]

$\implies \mathsf{ \frac{10}{x - 1} = \frac{8}{4} }$

$\implies \mathsf{ \frac{10}{x - 1} = 2 }$

$\implies \mathsf{ 10 = 2 (x - 1) }$

$\implies \mathsf{ 10 = 2 x - 2 }$

$\implies \mathsf{ 10 + 2= 2 x }$

$\implies \mathsf{ 1 2= 2 x }$

$\implies \mathsf{ x = 6 }$

Hence, the value of x is 6.

5 0

2 years ago

Suppose that an individual has a body fat percentage of 16.8% and weighs 152 pounds. How many pounds of his weight is made up of

natka813 [3]

<h3>Answer: 25,5 p</h3>

Step-by-step explanation:

16 , 8 % = ? p
100% = 152 p

$\pmb {? =\dfrac{152\cdot 16, 8}{100}=25, \underline 536 p\approx25,5 p }$

4 0

2 years ago

If n = -1, which of the following statements is false?

Rainbow [258]

Answer: B

Step-by-step explanation:

Those lines around n mean it’s talking about absolute value. Absolute value is the positive version of any number. This that -1 would turn into 1. If that’s the case, then |n| < 0 would be false

7 0

3 years ago

Aha please help!!!!! im a bit confused lol

Stels [109]

Answer:

e : g = 2 : 7

Step-by-step explanation:

e/f = 3/7

e = 3f/7

f/g = 2/3

g = 3f/2

e/g = (3f/7)/(3f/2) = 2/7

3 0

2 years ago