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miv72 [106K]
3 years ago
7

Calculate the radius of a circle if its area is 153.9cm2​

Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
6 0

Answer:

6.999

Step-by-step explanation:

153.9 = pie*r^2

48.98=r^2

R=6.999

Ostrovityanka [42]3 years ago
5 0

Answer:

7

Step-by-step explanation:

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What is the probability that the arrow will land on 1 or 5
crimeas [40]

Answer:

2/5 or 40%

Step-by-step explanation:

1+1 (amount of numbers)= 2

2/5 (amount of possible results)

= 40%

So there will be a 40% chance for the arrow to land on 1 or 5

6 0
4 years ago
Solve each equation.<br> 2(-5b + 6) = 9
Slav-nsk [51]

Answer:

3/10

Step-by-step explanation:

2(-5b+6)=9

-10b+12=9

-10b=-3

b=3/10

5 0
3 years ago
Read 2 more answers
Micheal solved this inequality as shown: step 1: -6(x + 3) + 10 &lt; -2 step 2: -6x - 18 + 10 &lt; -2 step 3: -6x - 8 &lt; -2 st
Anastaziya [24]
<h3>Answer:   addition property of inequality</h3>

================================================

Explanation:

These are the steps to focus on

step 3: -6x - 8 < -2

step 4: -6x < 6

The move from the third step to the fourth step has us adding 8 to both sides. Therefore, we use the addition property of inequality.

That property has four forms

  1. If a > b then a + c > b+c
  2. If a < b then a+c < b+c
  3. If a \ge b then a + c \ge b+c
  4. If a \le b then a+c \le b+c

It's similar to the idea of starting with a = b, then adding c to both sides to get a+c = b+c

We add the same thing to both sides to keep things balanced.

8 0
2 years ago
What is the domain of {(1, 3) (4, 3) (6, 2)}?
bija089 [108]
Domain means the set of x values. So the domain would be 1,4,6
5 0
3 years ago
Read 2 more answers
A liquid form of penicillin manufactured by a pharmaceutical firm is sold in bulk at a price of
inna [77]
The revenue is given by the unit price * number of units.
Profit = Revenue - Cost = 200x - 500,000 - 80x - 0.003x^2 = 120x - 500,000 - 0.003x^2
For profit to be maximum dP/dx = 0
120 - 0.006x = 0
x = 120/0.006 = 20,000

Therefore, to maximize profit, the firm should produce 20,000 penicillin.
7 0
3 years ago
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