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Ahat [919]
3 years ago
8

Help with 2 questions please.

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0
1 is the 3rd option down
2 is the second option down

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The sum of the digits of a two-digit number is 14. If the number formed by reversing the digits is less than the original number
HACTEHA [7]

Answer:

86

Step-by-step explanation:

1. a+b=14 ⇒ a= 14-b

2. 10a+b=18+10b+a ⇒ a= 2+b

comparing 1 and 2:

14-b= 2+b ⇒ 2b= 12 ⇒ b= 6

a= 14-b= 8

number = 86

reversed number = 68

3 0
3 years ago
Factorise each of the following<br> a2+9a+8
Tanzania [10]

Answer:

Step-by-step explanation:

I suppose the expression is this a^2+9a+8.

We can factor out this expression ( Remember, find two numbers that the sum is 9 and the product is 8. The numbers are 8 and 1)

a^2+9a+8=(a+1)(a+8)

8 0
2 years ago
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How much must you add to -12 to get greater than 5
pav-90 [236]
At least 15 b/c is you add QWERTY to -12, you get zero and adding 5 to get 15 in total.
7 0
3 years ago
Is it possible to create two triangles with congruent side lengths but different angle measurements?
kotykmax [81]
Yes. If the side lengths are different, you can end up with different angle measurements (example: SSA~ property. You can have two sides that are the same but you can make two different triangles with those side lengths and that one angle.)
8 0
3 years ago
What is the reflection of the point (1.7, -4.9) across the x axis
Vitek1552 [10]
(-1.7, -4.9) 

to reflect across the x-axis multiply the x-value by negative 1

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3 years ago
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