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EastWind [94]
3 years ago
6

2 a. An airplane flies with a constant speed of 680 km/h. How far can it travel in 2 hours?

Mathematics
2 answers:
Readme [11.4K]3 years ago
7 0

Answer:

1360 km/h

Step-by-step explanation:

680 km/h x 2hr = 1360

sammy [17]3 years ago
3 0

Answer:

1360 km

Step-by-step explanation:

d = rt

d = 2(680)

d = 1360 km

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It might be Annual salary?

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If we transform y=x^2 by 5 units to the left and 8 units ups, what is the vertex of the resulting parabola?
sertanlavr [38]

Answer: y = (x + 5)² + 8

<u>Step-by-step explanation:</u>

y = x²

left 5 units:       y = (x + 5)²

up 8 units:        y = (x + 5)² + 8

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For the following paired data, (1) Calculate the correlation coefficient, r, and (2) at the 0.05 significance level, determine w
expeople1 [14]

Answer:

Linear correlation exists

Step-by-step explanation:

Given the data :

X : | 2 4 5 6

Y : | 6 9 8 10

Using technology to fit the data and obtain the correlation Coefficient of the regression model,

The Correlation Coefficient, r is 0.886

To test if there exists a linear correlation :

Test statistic :

T = r / √(1 - r²) / (n - 2)

n = number of observations

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T = 0.866 / 0.3535845

T = 2.449

Comparing Pvalue with α

If Pvalue < α ; Reject H0

Pvalue = 0.1143

α = 0.05

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7 0
3 years ago
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yarga [219]

Answer:

Step-by-step explanation:Answer:

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All real numbers are solutions.

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−3m+−24=−3m+−24

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Step 2: Add 3m to both sides.

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Step 3: Add 24 to both sides.

−24+24=−24+24

0=0

Answer:

All real numbers are solutions.

8 0
3 years ago
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