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Pie
3 years ago
6

Please help???

Mathematics
2 answers:
3241004551 [841]3 years ago
8 0
It’s (x-8y)^2 I’m sure
Alisiya [41]3 years ago
7 0

Answer:

The answer is ( x-8y )(x-8y)    [ c ]

Step-by-step explanation:

x^2 - 16xy + 64y^2   equation 1

rewrite 64y^2 as (8y)^2

then equation 1 becomes

x^2 - 16xy + (8y)^2 equation 2

<em>using the perfect square trinomial rule </em>

a^2 - 2ab + b^2   equation 3

comparing the middle term of equation 3 to equation 2

2ab = -16xy  which can be simplified as 2*x*(-8y)

NOTE { a = x  and b = -8y}  from  equation 2

equation 3 is simplified as (a - b)^2

answer then becomes (x-8y)^2  or can be written as (x-8y)(x-8y)

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7 0
3 years ago
Micaela is 2 years older than Sam. In 4 years, the sum of their ages will be 40. How old is Micaela now?
Ann [662]

Answer:

The error is: The solution shows the Sam's age and the problem asked for Micaela's age.

Solution fixed: m=17

Micaela is 17 years old now.

Step-by-step explanation:

The error is: The solution shows the Sam's age and the problem asked for Micaela's age.

To fix the error, you can set up these equations based on the information given:

m=s+2  

(m+4)+(s+4)=40  

Solve for "s" from the first equation:

s=m-2

Substitute this equation into the second equation:

(m+4)+((m-2)+4)=40  

Now you need to solve for "m":

m+4+(m-2+4)=40\\m+4+m+2=40\\m+m=40-4-2\\2m=34\\m=\frac{34}{2}\\\\m=17

Micaela is 17 years old now.

4 0
3 years ago
Read 2 more answers
Juan decided to start saving for college. He deposited $500 into an account which earns 4% simple annual interest. At the end of
Norma-Jean [14]

Answer:

$5504

Step-by-step explanation:

Given that :

Principal amount = $500

Interest = 4% simple interest annually

Amount added at the end of each year :

First year:

Principal + (Principal * rate * time)

500 + (500 * 0.04) = 520

$520 + $250 = $770

2nd year:

770 + (770 * 0.04) = $800.80

$800.80 + $250 = 1050.80

3rd year:

1050.8 + (1050.8 * 4) = 5254

$5254 + 250 = $5504

5 0
3 years ago
Julia writes 2fractions with the same denominator that have numerators 5and 7.What could the denominator be if the sum is less t
Goshia [24]

Answer:

Less then denominator can be 20. I don't know equal. Greater denominator can just be 1.



8 0
3 years ago
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