3 years ago

The side length of a square is equal to?

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

5 0

Answer:

the other sides of the square

Step-by-step explanation:

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Which number is equivalent to 0.000000001: 10^9 or 10^(-9)? How do you know

FrozenT [24]

Answer:

Step-by-step explanation:

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3 years ago

what is 2/a = a/50. These are factions if you already didn't know. I need to know what the answer is. it is a proportion.

Natalija [7]

2/a= a/50

Cross multiply:
a* a= 2*50
⇒ a^2= 100
⇒ a= √100 or a= -√100
⇒ a= 10 or a= -10

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Alex is a member of the school track and field team. His times for running various distances are shown. Create a scatter plot fo

frozen [14]

Answer:

(1) Please find attached the graph of the data

(2) 160.396 m

(3) The correlation that exist is a straight line correlation

Step-by-step explanation:

The given data are;

Distance, Time

(m), (s)

50, 6.1

100, 12

150, 18.3

200, 25.2

250, 31.7

(2)

Based on the linear regression formula, we have;

$b = \dfrac{N\sum XY - \left (\sum X \right )\left (\sum Y \right )}{N\sum X^{2} - \left (\sum X \right )^{2}}$

$b = \dfrac{5 \times 17215 - 93.3 \times 750}{5 \times 2156.03 -8704.89} = 7.758$

$a = \dfrac{\sum Y - b\sum X}{N}$

$a = \dfrac{750 - 7.7581 \times 93.3}{5}= 5.234$

The line is

y = 7.7581×x+5.234

When t = 20 s, we have

y = 7.7581*20+5.234 = 160.396 m

(3) The correlation that exist is a straight line correlation

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3 years ago

Simplify (- 12) +(-8)

geniusboy [140]

Answer:

-20

Step-by-step explanation:

(-12) + (-8)

-12 - 8

-20

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2 years ago

The side length of a square is equal to? ​

The side length of a square is equal to?