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Ivan
1 year ago
9

Simplify- 9 (1 - r) + 3r

Mathematics
1 answer:
LUCKY_DIMON [66]1 year ago
8 0

Answer:

Step-by-step explanation:

Hello

Simplify :

9 (1 - r) + 3r

= 9 - 9r + 3r

= 9 - 6r

= 3(3 - 2r)

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Answer:

15+5 and 5(3 + 1)

Step-by-step explanation:

I did the test :3

6 0
1 year ago
Read 2 more answers
Just need to check these answers
amid [387]
Great Job! they are all correct.  :)


Good luck in your next tests.
3 0
1 year ago
A coin has a radius of 10 mm. How long will it take the coin to roll through the given angle measure at the given angular veloci
Gemiola [76]

Answer:

t = 1.57 sec

distance, d = 98.65 mm

Step-by-step explanation:

Given an angle of 540°

At 6 revolutions per second, which is the angular velocity.

Radius, r = 10 mm

We are asked to find the time and the distance.

To find the time, let's use the formula:

\theta = a*t

Where \theta = angle in radians.

Converting 540° to radians, we have:

\theta = 540 * \frac{\pi}{180} = 9.42 rad

Therefore, from the formula, let's find t.

\theta = a*t

9.42 = 6 * t

t = \frac{9.42}{6} = 1.57

time = 1.57

To find the distance, we have:

\frac{1.57 * 360}{360} = \frac{d}{2 \pi r}

\frac{1.57 * 360}{360} = \frac{d}{2\pi 10}

1.57 = \frac{d}{20\pi}

d = 20 \pi *1.57

d = 98.65 mm

Therefore, the time is 1.57 seconds and the distance is 98.65 mm

8 0
2 years ago
ian has a bag of fruit chews. 60/100 of fruit chews are cherry or grape. if 25/100 of fruit chews are cherry what fraction of th
padilas [110]
If the total of cherry or grape is 60/100, then 60 (total of grape and cherry)-25 (cherry)= 35 (grape)


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3 0
1 year ago
Read 2 more answers
PLEASE HELP!
melamori03 [73]

Answer:

The answer is C.

Step-by-step explanation:

The $13 he started off with is the y-intercept or the initial value, which is the point where x=0.

The x-intercept, or rate of change, is $8.50.

The slope intercept formula is y=mx+b, where m=8.5 and b=13.

The equation for this problem is y=8.5x+13.

So the answer is C

4 0
1 year ago
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