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2 years ago

Determine the number of solutions for each equation

Mathematics

1 answer:

Kay [80]2 years ago

3 0

8. There is no solution. The absolute value of a number is always positive.
9. There are two solutions. Since the absolute value of a number is always positive, a solution can either be 4 or -4.
10. There is no solution because of the same reason for number 8.
11. There is one solution. There really is not -0.
12. There are two solutions. Since the absolute value is always positive, the solution can be either 15 or -15.

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What is equivalent to 5(x + 12) A x +12 B 2x - 60 C 5x + 60 D 2x - 60

Alex73 [517]

Answer:

$\boxed{\boxed{\pink{\sf Option \ C \ is \ correct .}}}$

Step-by-step explanation:

Given to us is , 5 ( x + 12 ) and we need to find which is its equivalent in the given options .

So,

$\bf = 5 ( x + 12 ) \\\\=\bf 5x + 5\times 12 \\\\=\boxed{\red{\bf 5x + 60 }}$

<h3>Hence option C is correct.</h3>

4 0

2 years ago

Helen purchased 3 copies of a book online at a 20% discount. She also paid $10 for shipping that was not discounted. How much wa

umka21 [38]

Answer:

The original price of the book was $12.50

Step-by-step explanation:

3x - 0.2(3x) + 10 = 40
30x - 2(3x) + 100 = 400
30x - 6x + 100 = 400
24x + 100 = 400
24x = 300
x = 12.50

3 0

1 year ago

When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from t

laila [671]

The answer that would best complete the given statement above is Z-SCORE. When a data value is converted to a standardized scale representing the number of standard deviations the data value lies from the mean, we call the new value a Z-SCORE. Hope this helps.

6 0

3 years ago

If a=8 and b=4, evaluate the following expression:3a+b

hodyreva [135]

3(8) + 4

= 24 + 4

= 28

basically

7 0

2 years ago

Read 2 more answers

Ashton is depositing money into a checking account. After 3 months there is $120 in the account. After 6 months, there is $240 i

Talja [164]

The constant rate of change of the account is $40 or Increasing by $40 per month.

Step-by-step explanation:

Consider the provided information.

Joanne is depositing money into a bank account. After 3 months there is $120 in the account. After 6 months there is $240 in the account.

Rate of change is known as how one quantity change in relation to other.

The rate of change can be calculated as:

y2-y1/x2-x1

Now use the above formula to calculated the rate of change.

240 - 120/6-3

120/3

Hence, the constant rate of change of the account is $40 or Increasing by $40 per month.

8 0

2 years ago