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Verizon [17]
3 years ago
12

Find the area of the shaded region in the figure below if the radius of the outer circle is 8 and the

Mathematics
1 answer:
Alik [6]3 years ago
5 0

Answer:

outer circle=22/7×8^2

=201.143

inner circle=22/7×2^2

=12.571

shaded portion= 201.143-12.571

=188.572cm^2

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In 2015, there were approximately 4, 148,000 births in a country. Find the birth rate in births per minute.
Setler79 [48]

Answer:

7.89 births per minute

Step-by-step explanation:

525600 minutes in a year

4,148,000 divided by 525600 =

7.89193302892

7 0
2 years ago
Use distributive law to factor the given expression: 3+21a+15b
Reil [10]

Answer:

3(1+7a+5b)

Step-by-step explanation:

The distributive law states that

a\cdot (b+c)=a\cdot b+a\cdot c.

The expression 3+21a+15b consists of three terms:

  1. 3=3·1;
  2. 21a=3·7a;
  3. 15b=3·5b.

You can see that 3 is the common factor of these three terms, thus

3+21a+15b=3(1+7a+5b).

6 0
3 years ago
Help me please ASAP
Oliga [24]

Answer:

30

Step-by-step explanation:

if im reading the qestuion right

so she had 80 bucks she spend 20 on a ticked so she has 60 left so if im reading it right she spent all of her money so 60 divde by 2 is 30.  

hoped this helped!

3 0
2 years ago
Can someone please help me with this question.ASAP
expeople1 [14]
Sorry don't know the answer
8 0
2 years ago
If 6 spring roll serve 3 people how many people will 1 roll serve
Pavlova-9 [17]

Answer:

1/2 person

Step-by-step explanation:

We can use a ratio to solve

6 rolls          1 roll

------------  = -------------

3 people      x people

Using cross products

6x =3

Divide each side by 6

6x/6 = 3/6

x = 1/2

1 roll will solve 1/2 person

7 0
3 years ago
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