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Vilka [71]
2 years ago
5

What’s is the area of shape B?

Mathematics
2 answers:
Phantasy [73]2 years ago
6 0

Answer:

28.5 cm²

Step-by-step explanation:

There are 7 whole diamonds and 5 half-diamonds.  Each diamond is worth three.

7x3=21

5/2x3=7.5

21+7.5=28.5

Karo-lina-s [1.5K]2 years ago
6 0
The answer would be 28.5
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Between 2005 and 2008, the average rate of inflation was about3.4 per year. If a cart of groceries cost $140 in 2005, what did i
Elan Coil [88]
The formula is
A=p (1+r)^t
A future value?
P current value 140
R rate of inflation 0.034
T time 2008-2005=3 years
A=140×(1+0.034)^(3)
A=154.77 round your answer to get
A=155
3 0
3 years ago
HELP PLEASE!!!!!!!!!!!!!!!!!!!!!
devlian [24]
I think it’s the third one and the last two. I’m sorry if it’s wrong
7 0
3 years ago
This is K12 in sixth grade
zmey [24]

Answer:

13

Step-by-step explanation:

divide 150 by 12

the answer is 12.5

round 12.5

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8 0
3 years ago
Read 2 more answers
A theater has 56 rows of seats. If there are 13 seats in the first row, 18 in the 2nd row, 23 in the 3rd row. How many seats are
Anna35 [415]

Answer:

8428

Step-by-step explanation:

According to the Question,

  • Given, A theater has 56 rows of seats. If there are 13 seats in the first row, 18 in the 2nd row, 23 in the 3rd row.

We have a number sequence  13, 18, 23, ...

  • We can say that this is an arithmetic sequence because of the common difference 'd', is equal to 5, and the first term 'a1' is equal to 13.
  • The formula for the sum of an arithmetic sequence with n terms is given is S_n= \frac{n}{2} [2a_1+(n-1)d]S .

Substitute the given values into the equation to solve for the sum of the 56 rows of seats.

S_56= \frac{56}{2}[2(13)+(56-1)(5)]\\S_{56}=28\left[26+275\right]\\S_{56}=28\left[301\right]\\S_{56}=8428

Therefore, there are 8428 seats in all.

4 0
3 years ago
23q−34) and (−16q−r)
faltersainse [42]

Answer:

r = 7 q - 34

Step-by-step explanation:

Solve for r:

-34 + 7 q - r = 0

Subtract 7 q - 34 from both sides:

-r = 34 - 7 q

Multiply both sides by -1:

Answer:  r = 7 q - 34

7 0
3 years ago
Read 2 more answers
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