All categories

3 years ago

I need to give the slope but I don’t know how someone help!

Mathematics

1 answer:

san4es73 [151]3 years ago

7 0

Answer:

-4/2

Step-by-step explanation:

rise over run

goes down -4 "rises"

moves over 2 runs

You might be interested in

Commemorative coins come in packs of 15,while coin holders come in packs of 25. What are the least numbers of packs you should b

kozerog [31]

The least common multiple of 25 and 15 is 75. You'd do _ x 25 = 75 and _ x 15 = 75. The answer would be 3 and 5, so 5 packs of coins and 3 packs of coin holders.

7 0

3 years ago

Read 2 more answers

Solve for x. Round to the nearest tenth, if necessary.

Brilliant_brown [7]

Answer:

x = 63.9

Step-by-step explanation:

We have:

$\frac{QR}{sin35}$ = $\frac{78}{sin90}$

=> QR × sin90 = 78 × sin35

=> QR × sin90 = 44.7

=> QR = 44.7

But, we also have: $x^{2}$ + $QR^{2}$ = $78^{2}$ <=> $x^{2}$ + $44.7^{2}$ = $78^{2}$ <=> $x^{2}$ = 6084 - 1998.09

=> $x^{2}$ = 4085.91

=> x = $\sqrt{4085.91}$ = 63.9211.. = 63.9

<3 Have a nice day!!

8 0

3 years ago

If two planes cross one another, then their intersection is two lines.

Sonbull [250]

I do not know the answer to the question

6 0

2 years ago

Prove the formula for (d/dx)(cos−1(x)) by the same method as for (d/dx)(sin−1(x)). Let y = cos−1(x). Then cos(y) = and 0 ≤ y ≤ π

gtnhenbr [62]

Answer:

$\frac{d(cos^{-1}x )}{dx} = \frac{-1}{\sqrt{1-x^2} }$

Step-by-step explanation:

Given the differential (d/dx)(cos−1(x)), to find the equivalent formula we will differentiate the inverse function using chain rule as shown below;

let;

$y = cos^{-1} x \\\\taking \ cos\ of\ both\ sides\\\\cosy = cos(cos^{-1} x)\\\\cosy = x\\\\x = cosy\\\\\frac{dx}{dy} = -siny\\$