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3 years ago

How many times as many circles will there be at stage 21 compared to stage 20

Mathematics

1 answer:

babymother [125]3 years ago

3 0

Answer: $2^{10}\ circles$

Step-by-step explanation:

Given

Stage 20 has $2^9$ circles

Considering at each consecutive stage circle doubles itself

So at stage 21, there will be $2\times 2^9=2^{10}$ circles

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What’s the total value of 20 quarters, 40 dimes, 30 nickels, and 15 pennies

Inessa [10]

Answer$10 65 cents

Step-by-step explanation:

20/4= $5 40/10= $4 .05 x 30= $1.50 and add those together to get $10.50 then add the 15 pennies which is $10.65

6 0

3 years ago

Read 2 more answers

Factor each completely. 10a² - 9a + 2

Sophie [7]

Answer:

a= $\frac{2}{5}$ or $\frac{1}{2}$

Step-by-step explanation:

Equate the equation to zero

$10a^{2}$ -9a+2=0

$10a^{2}$ -5a-4a+2=0

5a(2a-1)-2(2a-1)=0

Write out the factors

(5a-2)(2a-1)=0

Then equate each factor to zero

5a-2=0 OR 2a-1=0

5a=2 OR 2a=1

a= $\frac{2}{5}$ OR a= $\frac{1}{2}$

a= $\frac{2}{5}$ or $\frac{1}{2}$

3 0

3 years ago

How would you solve #8

stellarik [79]

I hope this helps you

4 0

3 years ago

Find BC. any help will be appreciated:)

Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

Here,BC=1/2FH

BC=8/2

BC=4

This is the required answer

hope it helps u and keep smiling :)

8 0

3 years ago

16. 68, ......., 96, 113, 132 a. 80 b. 81 c. 96

vfiekz [6]

Answer:

Step-by-step explanation:

So there is a pattern:

132-113=19

113-96=17

96-? is going to equal 15

So 96-81=15

And 81-68=13

4 0

3 years ago