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2 years ago

12

What is the length of XY?

1 answer:

xeze [42]2 years ago

4 0

Answer:

( C ) 20 inch

Step-by-step explanation:

AB=28 inch ( given )

AP=26 inch ( given )

since that xy bisects and its perpendicular to AB and CD

then AX=48/2 = 24 inch

so by using Pythagoras theorem

then 26 squared - 24 squared = 10 inch

so XD+YD= 10 +10 =20 inch

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Need help please answer this question

Aleks04 [339]

Answer:

C

Step-by-step explanation:

Substitute the given values for x and y into the expression

5 × ( $\frac{60}{6(5)}$ ) - 1

= 5 × ( $\frac{60}{30}$ ) - 1

= (5 × 2) - 1

= 10 - 1

= 9 → C

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2 years ago

I NEED HELP FASTT PLEASE

Advocard [28]

It’s the third dot bc X to the tenth power times y divided by three

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What is .282 repeating in simplified fraction form

Sphinxa [80]

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2 years ago

The sum of the digits of a 2-digit number is 10. If 18 is added to the number, the digits of the new number are those of the ori

Aliun [14]

Answer:

46

Step-by-step explanation:

Let $(ab)$ represent a number with $a$ in the ten's position and $b$ is the one's position.

This means $(ab)$ actually has value of $10a+b$ .

We are given the sum of those digits of $(ab)$ is 10; this means $a+b=10$ .

It says if 18 is added to the number $(ab)$ , then the result is $(ba)$ .

So $(ab)$ has value $10a+b$ and

$(ba)$ has value $10b+a$ .

We are given then:

$(ab)+18=(ba)$

$10a+b+18=10b+a$

Subtract $10a$ on both sides:

$b+18=10b+a-10a$

Simplify:

$b+18=10b-9a$

Subtract $b$ on both sides:

$18=10b-b-9a$

$18=9b-9a$

Divide both sides by 9:

$2=b-a$

Rearrange by commutative property:

$2=-a+b$

So the system of equations we want to solve is:

$a+b=10$

$-a+b=2$

-------------------------Add equations together (this will eliminate the variable $a$ and allow you to go ahead and solve for $b$ :

$0+2b=12$

$2b=12$

Divide both sides by 2:

$b=\frac{12}{2}$

Simplify:

$b=6$

If $b=6$ and $a+b=10$ , then $a=4$ . $a=4$ since 4+6=10.

So the original number is (46).

18 more than 46 is 18+46=(64) which is what we wanted.

We also have the sum of 4 and 6 is 10 as well.

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3 years ago

How can you tell that 7.630 and 7.63 are equivalent decimals?

nataly862011 [7]

Because an equivalent decimal names the same amount as another decimal. the 0 has no value

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