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Yakvenalex [24]
3 years ago
13

Can someone tell me the answers and solutions steps I’ll give you brainlist and points

Mathematics
1 answer:
sveta [45]3 years ago
4 0
Your answer for 21. x = 4/5, b 19. n = -2/3, a

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What is the smallest multiple of 18 of the form 2A945B, where A and B are digits?
musickatia [10]

Answer:

219456

Step-by-step explanation:

It must end in 0,2,4,6,8 (divisible by 2 rule) and the digits must sum to a multiple of 9(divisible by 9 rule).

The digit sum is 2+A+9+4+5+B=20+A+B.

We want to make A as low as possible because it's a higher digit than B.

If A is as low as possible, we have that the sum is 20+0+7=27. Uh-oh. B has to be even! So A=0 doesn't work.

If A=1, we have that the sum is 20+1+6=27. Yay!

So, the answer is \boxed{219456}

6 0
3 years ago
I had it at first but now I’m lost.. can someone please help me ASAP!!
nlexa [21]

Answer:

Step-by-step explanation:

-5 - 2(3x - 4) = 3(x - 4) + 6

-5 - 6x + 8 = 3x - 12 + 6

-6x + 3 = 3x - 6

3 = 9x - 6

9 = 9x

1 = x

6 0
3 years ago
Read 2 more answers
Help asap please will give brainliest
BlackZzzverrR [31]

Answer:

d. (x+2)/(-x²-5)

Step-by-step explanation

 ƒ(x) = x + 2/(2x²)

The function is undefined when x =  0.

b. ƒ(x) = (2x + 4)/(3x + 3)

The function is undefined when 3x + 3 = 0, i.e., when x = -1.

c. ƒ(x) = (6x - 5)/(x² - 7)

The function is undefined when x² - 7 = 0, i.e., when x = √7.

d. ƒ(x) = (x+2)/(-x²-5) = -(x+2)/(x² + 5)

The function would be undefined if x² + 5 = 0, i.e., if x² = -5. However, the square of a real number cannot be negative.

This function has no excluded values.

4 0
3 years ago
The local video store charges a monthly membership fee of $ 5 and $ 2.25 per video
LiRa [457]

ok what the question

5 0
4 years ago
If the rate at each store is constant, which statement correctly compares the cost of a package containing 20 CDs?
svlad2 [7]

Answer:

the answer is A:

The cost at Store A is $2.00 greater than at Store B.

5 0
4 years ago
Read 2 more answers
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