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Lilit [14]
3 years ago
6

Evaluate the expression (ab)2 for a = 4 and b = 3. A. 36 B. 24 C. 81 D.144

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
4 0

Answer:

Option D = 144

Step-by-step explanation:

First, you are not putting the expression correctly. I'm assuming you are mean to say (ab)². This is because if you want to multiply by 2, the 2 usually goes first like this 2ab. But it's not case, so, it should be as I said.

Now, let's replace the values for a and b into the expression:

(ab)² = (4 * 3)² = (12)² = (12*12) = 144

That's is why is option D.

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5 0
3 years ago
Translate the following written expression into a mathematical expression. Then, find the expression's value when a = 186 and b
antoniya [11.8K]

Answer: The correct answer is option A: 6

Step-by-step explanation: We shall start by splitting the word problem into bits to ease our calculations.

We start with “the quotient of a and 6...” and that can be expressed as

a/6 where a equals 186, this becomes

186/6 and this equals 31.

Note that quotient means the result derived from dividing two numbers/values.

Next, “The difference of ... and b squared”

The missing part of this statement has been calculated as 31, so this can now be written as “The difference of 31 and b squared” where b equals 5 and b squared now equals 25. Hence what we have is the difference of 31 and 25

That is, 31 - 25 and that equals 6.

Therefore, the expression can now be written out as;

(a/6) - b^2

When a equals 186 and b equals 5, the answer is 6

8 0
3 years ago
Which of the following is NOT equivalent to (3x – 12)(x + 4)?
SashulF [63]

Answer:

3x^{2}+12x-12x-48

3x^{2}-48

Step-by-step explanation:

I hope this answer has helped you

7 0
2 years ago
phoenix is a businessman who travels frequently he uses atms in many cities and does not write many checks he also uses direct d
liubo4ka [24]

Answer:

Bank 3

Step-by-step explanation:

No additional charges for automatic deposit and includes saving account.

3 0
3 years ago
Trigonometry, I don’t know how to find x.
Verizon [17]

Answer:

Step-by-step explanation:

I still suspect that Angle A is 30° and Angle B is 60°.  Otherwise the labels do not fit the illustration.

If Angle A is 60°, as you insist, then the solution (the length of x) is as follows:

                          opp side        x

tan 60° = √3 = ---------------- = -----

                          adj side          7

Then:

   √3            x

-----------  =  -----

     1              7

Thru cross-multiplication we see that x = 7√3

Multiply both sides by 7, which produces:

7√3 = x

7 0
3 years ago
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