3 years ago

I'd really appreciate it if anyone helped! :) Giving Brainliest!

1 answer:

5 0

the first three are irrational

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ki77a [65]

Answer:

10000 (1sf)

12000(2sf)

11900(3sf)

11940(4sf)

Step-by-step explanation:

I would go for 12000 (2sf) if it the degree of accuracy isn't specified in the question

6 0

3 years ago

guajiro [1.7K]

Answer:

$\frac{1}{ \sqrt{2} }$

3 0

2 years ago

Ede4ka [16]

Direct Variation: $\frac{y}{x} = k$

$\frac{15}{2} = k$

when y = 7: $\frac{7}{x} = \frac{15}{2}$

14 = 15x

$\frac{14}{15} = x$

Inverse variation: y*x = k

15 * 2 = k

30 = k

when y = 7: 7 * x = 30

$x = \frac{30}{7}$

3 0

3 years ago

Olenka [21]

B because it makes sense

4 0

3 years ago

Thepotemich [5.8K]

Mentally

As they are numbers which you can do mental math with since they are whole numbers.

8 0

3 years ago