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2 years ago

Determine the slope of the line containing the points (-5,4) and (0,7).

Mathematics

1 answer:

bekas [8.4K]2 years ago

8 0

Slope (m) = y2-y1 / x2-x1
m = 7 - 4 / 0 + 5
m = 3 / 5

In short, Your Answer would be 3/5

Hope this helps!

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A submarine was situated 600 feet below sea level. An airplane directly above is at a height of 8,500 feet.

kirill115 [55]

Answer:

9,100 feet is the answerrr

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2 years ago

Write the standard form of the equation and write the slope intercept. Need help with #7 & #8. Thanks!

Dafna11 [192]

Number 8 is C. I'm still trying to figure out what number 7 is.

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3 years ago

Find the radius of this circle.<br> A = ar2<br> r = [?] ft<br> A = 9aft?

Sergeu [11.5K]

Answer:

A = $\pi$ . r^2

If A = 9 $\pi$ ft^2

$\pi$ . r^2 = 9 $\pi$ ft^2

r^2 = 9ft^2

r = sqrt(9ft^2)

r = 3ft ( r>0)

Step-by-step explanation:

6 0

2 years ago

Simplify -3p 3 + 5p + (-2p 2) + (-4) - 12p + 5 - (-8p 3).

MissTica

Answer:5p^3-2p^2-7p+1

Step-by-step explanation:

-3p^3+5p+(-2p^2)+(-4)-12p+5-(-8p^3)

open brackets

-3p^3+5p-2p^2-4-12p+5+8p^3

Collect like terms

-3p^3+8p^3-2p^2+5p-12p-4+5

5p^3-2p^2-7p+1

3 0

3 years ago

Help please:Suppose that x and y inversely, and x=10 when y=8 write the function that models the inverse variation

jarptica [38.1K]

SOLUTION

From the question, we are told that y varies inversely as x

This is mathematically written as

$\begin{gathered} y\propto\frac{1}{x} \\ \propto\text{ is a sign of proportionality } \end{gathered}$

Now, we will remove the proportionality sign and replace it with equal to sign =

If we do this, we will intoduce a constant k

$\begin{gathered} y\propto\frac{1}{x} \\ y=k\times\frac{1}{x} \\ y=\frac{k}{x} \end{gathered}$

So we have the formula

$y=\frac{k}{x}$

We will substitute the values of x for 10 and y for 8 into the formula to get k, we have

$\begin{gathered} y=\frac{k}{x} \\ 8=\frac{k}{10} \\ k=8\times10 \\ k=80 \end{gathered}$

Now, we will substitute k for 80 back into the formula to get the inverse function, we have

$\begin{gathered} y=\frac{k}{x} \\ y=\frac{80}{x} \end{gathered}$

Hence the answer is option C

7 0

1 year ago