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2 years ago

I WILL GIVE BRAINLYYYY PLS HELPPPPPPPPPPPPPPPPPP

Mathematics

1 answer:

romanna [79]2 years ago

5 0

Answer:

The Average rate of the first plane is 560 mph

Step-by-step explanation:

x = first plane's average rate (in mph)

x−108 = second plane's average rate (in mph)

First planes total distance = 2.25x

Second planes total distance = 1.25(x−108)

2.25x + 1.25(x−108) = 1825

x = 560

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25+10%= 27.5 Hope this helps.

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Which graph shows a negative acceleration?

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Answer:

Second Graph.

Explanation:

It's the only graph that is concave down and the slope is decreasing.

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2 years ago

In a sample of 35 high school seniors, 14 of them are attending college in the fall. Find the 95% confidence interval for the tr

kati45 [8]

Answer:

Between 23.77% and 56.23%

Step-by-step explanation:

On your TI-84

Press STAT

Use right arrow to scroll over to highlight TESTS

Use down arrow to scroll down to A:1-PropZInt...

Press ENTER

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2 years ago

Line FG goes through the points (4,9) and (1,3). Which equation represents a line that is perpendicular to FG and passes through

stiks02 [169]

Answer:

$x + 2y= 2$

Step-by-step explanation:

Given

Points:

$F = (4,9)$

$G = (1,3)$

Required

Determine the equation of line that is perpendicular to the given points and that pass through $(2,0)$

First, we need to determine the slope, m of FG

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where

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$G = (1,3)$ --- $(x_2,y_2)$

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$y - y_1 = m_2(x - x_1)$

Where

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$y - 0 = -\frac{1}{2}(x - 2)$

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Add x to both sides

$x + 2y= -x +x+ 2$

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Answer:

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