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3 years ago

How do u write (2b)^4 without exponents

Mathematics

2 answers:

bearhunter [10]3 years ago

4 0

Since you don't know the value of b about the best that you could do is:

(2b)^4

16b^4

16b*b*b*b

Oksana_A [137]3 years ago

3 0

You will write 2b. 2b. 2b. 2b because all you are doing is multiplying 2b by itself 4 times. 2b.2b.2b.2b

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How many 1/8 pound servings of walnuts, s , are in 3/4 pound of walnuts?

aliya0001 [1]

1/8 s = 3/4
2/16 s = 12/16 (multiply each side by 16)
2s = 12 (divide each side by 2)
s = 6

7 0

3 years ago

Read 2 more answers

If A = -3n + 2 and B = 5n - 7, what is the value of A - B, in simplest form?

11Alexandr11 [23.1K]

Answer:

-8n + 9

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define

A = -3n + 2

B = 5n - 7

A - B

Step 2: Simplify

Substitute: -3n + 2 - (5n - 7)
Distribute negative: -3n + 2 - 5n + 7
Combine like terms (n): -8n + 2 + 7
Combine like terms (Z): -8n + 9

4 0

3 years ago

Expand and simplify bracket please quickly

natulia [17]

Answer:

4y²-1/4 is the required answer

Step-by-step explanation:

$(2y - \frac{1 }{2} )(2y + \frac{1}{2} ) \\ using \: formula \: {x}^{2} - y {}^{2} = (x - y)(x + y) \\ 4y {}^{2} - \frac{1}{4}$

4 0

1 year ago

The inverse for f(x)=-.75x

irina [24]

It would be $-\frac{4x}{3}$ .

8 0

3 years ago

Solving Exponential Equations (lacking a common base) 31^d=38

Bond [772]

Answer:

d = log 38/log31

d = 1.06

Step-by-step explanation:

31 ^ d = 38

Take log of both sides since the exponential equation have different base (always)

d log 31 = log 38

d = log 38 / log 31

d = 1.58 / 1.491

d = 1.06.

We can actually check to see if this is correct.

Substituting d = 1.06

31^ 1.06 = 38.092

(You see, that's approximately correct)

Keep learning, maths is fun!

8 0

3 years ago