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vlabodo [156]
3 years ago
14

Which figures have rotation symmetry? Select each correct answer

Mathematics
1 answer:
rusak2 [61]3 years ago
7 0

Answer:

a and d

Step-by-step explanation:

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What is multiplying by regrouping
Phantasy [73]
It's very easy here is an example
19
X3
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Nine times three is 27 so
19
X 3
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7
You just leave the seven there then
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19
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7
You put the two on top of the one.
After that you multiply 1x3=3 then the two on top of the one adds to 3 + 2
4 0
3 years ago
Read 2 more answers
Why 1975 can't be the sum of two squares. Or prove that the equality x ^ 2 + y ^ 2 = 1975 has no solutions in integers
Amanda [17]

Answer:

Step-by-step explanation:

If a number can be expressed by sum of two square, only if the number can be represented by 4k + 1 form

1975 = 4*493 + 3

So, 1975 can't be a sum of two squares

6 0
3 years ago
What id the answer for 4x + 2y +4x2 - 5y
GenaCL600 [577]

Answer:

4x^{2} +4x -3y

Step-by-step explanation:

<em></em>

<em>Simplify</em>

<u>combine like terms:</u>

<u></u>4x+2y+4x^{2} - 5y

4x - 3y+4x^{2}

<u>rearrange terms: </u>

<u />4x - 3y+4x^{2}<u />

<u />4x^{2} +4x - 3y<u />

5 0
3 years ago
Rewrite<br> 5 exponent 4 multiplied by 2 exponent 4 over 10 slash exponent 3 <br> as a single power.
Hitman42 [59]

Answer:

thx for the points

Step-by-step explanation:

i like points

good luck on your maths

7 0
2 years ago
michelle invested $10000 in an account that earns 8.5% interest that is compounded monthly. Determine the amount of interest ear
Semmy [17]

Answer:

$25,626.53

Step-by-step explanation:

You are going to want to use the compound interest formula, which is shown below.

A=P(1+\frac{r}{n} )^{nt}

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em>t = time</em>

<em />

First, change 8.5% into a decimal:

8.5% -> \frac{8.5}{100} -> 0.085

Now lets plug in the values into the equation:

A=10,000(1+\frac{0.085}{12})^{12(15)}

A=35,626.53

Lastly, subtract the total from the initial balance:

35,626.53 - 10,000 = 25,626.53

Michelle earned $25,626.53 in interest.

7 0
4 years ago
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