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Nadya [2.5K]
3 years ago
9

Billy's mother had five children. The first was named Lala, the second was named Lele, the third was named Lili, the fourth was

named Lolo. What was the fifth child named?
Mathematics
1 answer:
vovikov84 [41]3 years ago
4 0

Answer:

billy

Step-by-step explanation:

its billy's mother. he/she is one of the children

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. Find two consecutive odd integers whose product is 99. (Note: There are two different pairs of consecutive odd
Tom [10]

Answer:

9 and 11

Step-by-step explanation:Let the 2 consecutive odd integers be n and n+2.

n(n + 2) = 99

Solve for n.

n2 + 2n - 99 = 0

(n + 11)(n - 9) = 0 ⇒

Two solutions:

n = -11

n + 2 = -9

and

n = 9

n + 2 = 11

Test the answers.

4 0
3 years ago
Prove that if xy > 0, then either x > 0 and y > 0 or x < 0 and y < 0
Rufina [12.5K]

The rule of product states that:

  • (+) \cdot (+) = (+)
  • (+) \cdot (-) = (-)
  • (-) \cdot (+) = (-)
  • (-) \cdot (-) = (+)

So, a product is positive if and only if both factors have the same sign, and is negative if only if the factors have opposite sign.

7 0
3 years ago
I don’t understand how to do this.
kherson [118]
I believe the answer to be only sequence A.
-Hope this helps, have a nice day! :)
3 0
3 years ago
Read 2 more answers
ROUND YOUR ANSWER TO THE NEAREST TENTH
Darya [45]

Answer:

x = 16.5

Step-by-step explanation:

Use pythagorean theorem

a² + b² = c²

Plug in terms

7.1² + x² = 18²

Square each term

50.41 + x² = 324

Subtract a from c

x² = 273.59

Find square root

16.5

4 0
3 years ago
WILL MARK YOU BRAINLIEST HURRY!
wel

Answer:

its  n II m

Step-by-step explanation:

Its one of the things I remember from geometry XD

3 0
3 years ago
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