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zlopas [31]
3 years ago
11

I need help on 21 . Please

Mathematics
1 answer:
kupik [55]3 years ago
4 0

Answer:

Air travels 6,920 meters in 20 seconds.

Step-by-step explanation:

If in one second air travels 346 meters, and you want to find out how many meters air travels in 20 seconds, then just multiply 346 by 20.

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I really need help with this question!
m_a_m_a [10]

Answer:

(s-6)/r

option D

Step-by-step explanation:

The slope-intercept form a line is y=mx+b where m is the slope and b is the y-intercept.

Compare y=mx+b and y=cx+6, we see that m=c and c is the slope.

Now we are also given that (r,s) is on our line which means s=c(r)+6.

We need to solve this for c to put c in terms of r and s as desired.

s=cr+6

Subtract 6 on both sides:

s-6=cr

Divide both sides by r:

(s-6)/r=c

The slope in terms of r and s is:

(s-6)/r.

6 0
4 years ago
Drisen has 6 groups of trains. Each group has 3 trains in it. What addition number sentence would help him solve how many trains
Nimfa-mama [501]

Answer:

6x3=x

x=18

Step-by-step explanation: plzz mark brainliest

4 0
3 years ago
* 2x+50=0<br> How much is X
tamaranim1 [39]

Answer:

-25

Step-by-step explanation:

                      2x + 50 = 0

                               2x = 0 - 50

                                     = -50

                                   x = -50 / 2

                                      = -25

<em>Hope this helps</em>

<em>:D</em>

5 0
3 years ago
Read 2 more answers
F(x) = (4x–5)/6 <br> Find the Inverse
noname [10]

Answer:

F^-1 (x) = 3x/2+5/4

Step-by-step explanation:

First, replace f(x) with y

Replace every x with a y and replace every y with an x .

Solve the equation from Step 2 for y  

Replace y with f−1(x) f − 1 ( x )

Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.

Hope this helps!  Stay Safe!

3 0
3 years ago
Find the point that lies on the line described by the equation below. y - 8 = - 3 (x-6)​
ohaa [14]

Answer:

B. (6, 8)

Step-by-step explanation:

To figure this out, you can plug in the coordinates to see if you get matching answers. Since you believe answer "B," is correct, we can check:

y - 8 = -3(x - 6)

8 - 8 = -3(6 - 6)

0 = -3(0)

0 = 0

<u>Since the answers match, that makes answer "B," correct.</u>

4 0
3 years ago
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