Help me ASAP please!!!

Mathematics

2 answers:

Tom [10]3 years ago

5 0

7.

Hope this helps :)!

Arte-miy333 [17]3 years ago

4 0

Answer:

Step-by-step explanation:

The two angles + 90 degrees equals 180 degrees

So it is sufficient to say that the two angles equals 90 degrees

6r - 7 + 55 = 90

6r + 48 = 90

6r = 42

r = 7

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You have a globe that has a radius of 11 inches. Find the volume of your globe

nordsb [41]

Answer:

V = 4/3

Step-by-step explanation:

Well first you have to pick a letter and i picked V. Then you have to calculate 11. Then you have an equation 11 +1. That equals 12. Then you find 2 numbers that equal 12. The 2 numbers are 4 and 3.

5 0

3 years ago

Read 2 more answers

Sketch the graph of each line.<br> 2x-5y=25

ki77a [65]

Well, you transform the standard form equation into slope-intercept form (y=mx+b), since you can only graph it using this form.

First of all, the layout of the equation is $Ax+By=C$

So, in this case, A is 2, B is 5, and C is 25.

Now, to put it into slope intercept form, you either use the formula to change it and solve it:

$y= \frac{-A}{B}x+ \frac{C}{B} \\ y= \frac{-2}{-5}x+ \frac{25}{-5} \\ \\ y= \frac{2}{5}x-5$

Or you can just solve for y:

$2x-5y=25 \\ 2x-5y-2x=25-2x \\ -5y=-2x+25 \\ \frac{-5y}{-5}= \frac{-2x+25}{-5} \\ \\ y= \frac{2}{5}x-5$

In addition, I attached what the graph looks like.

Hope this helps!