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3 years ago

9

At noon, the temperature of a container of ether was –109⁰C. At 1 p.m., the temperature of the container of ether was –34⁰C. Wha

t was the change in temperature from noon to 1 p.m.?

1 answer:

dem82 [27]3 years ago

5 0

143 degrees celcius because you do 109--34

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Find an equation of the line satisfying the given conditions Through (6,4); perpendicular to 3X + 5Y =38

Katyanochek1 [597]

To answer this, we will need to know:

• The slope of the equation we are trying to get
• The point it passes through using the

First, we will need to find the slope of this equation. To find this, we must simplify the equation $3x+5y=38$ into $y=mx+b$ form. Lets do it!

$3x+5y=38$
= $5y = -3x+38$ (Subtract 3x from both sides)
= $y= -\frac{3}{5}x+ \frac{38}{5}$ (Divide both sides by 5)

The slope of a line perpendicular would have to multiply with the equation we just changed to equal -1. In other words, it would have to equal the negative reciprocal.

The negative reciprocal of the line given is $\frac{5}{3}$ .

Now that we know the slope, we have to find out the rest of the equation using the slope formula, which is:

$\frac{y-y _{1} }{x- x_{1} }=m$

Substituting values, we find that:

$\frac{y-4}{x-6}= \frac{5}{3}$

By simplifying this equation to slope-intercept form (By cross-multiplying then simplifying), we then get that:

$y= \frac{5}{3}x-6$ , which is our final answer.

Thank you, and I wish you luck.

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3 years ago

Aline crosses the coordinates (-4,4) and (2.-5). What is the slope<br> of the line?

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Answer:

Step-by-step explanation:

Use the slope formula:

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where m = slope

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3 years ago

In a right triangle, if sin 0 = 8/17 what is cos 0 explain?

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Answer:

We have sin² x + cos² x =1 for all real x.

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However, remember that if x² = a², then x can be +a or –a.

Therefore, sin x can be either –15/17 or +15/17.

Everyone but Anirban so far has forgotten the negative solution.

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Considering the distance of the small plane after 6 hours, we have

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So the total distance = 1800 miles

Hence the speed of the Boeing 747 will be

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The average speed of the Boeing 747 is 900 miles/ hour

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