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3 years ago

Simplify {(1/3)^-2 -(1/2)^-2 } / (1/4)^-2

Mathematics

1 answer:

Mumz [18]3 years ago

6 0

Answer: 209/16 = 13.06250

Step-by-step explanation: hope it helps

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2. What is the external probability of rolling a 4

Nataly_w [17]

Answer:

2. 1- Experimental probability of rolling a 4 = 40%

3. 2- Theoretical probability is 3% greater than experimental probability.

Step-by-step explanation:

Experimental probability of rolling a 4 = 100 × $\frac{8}{20}$

= 100 × 0.4

= 40%

Experimental probability of getting at least one tail = $\frac{72}{100}$

= 0.72

Theoretical probability of getting at least one tail = $\frac{3}{4}$

= 0.75

Theoretical probability is 3% greater than experimental probability.

6 0

3 years ago

A table is going to be painted. How much less surface area of the table will be painted if the underside remains unpainted? leng

STALIN [3.7K]

440 will be remained out of 880

7 0

3 years ago

Read 2 more answers

A recipe for cake

iris [78.8K]

You would need half a cup of milk. hope I helped.

3 0

3 years ago

Can someone explain to me what this is asking? I’m so confused on how you show the domain

Helga [31]

Answer:

should be B.

Step-by-step explanation:

When it has a underline it usually means that its a solid circle.

4 0

3 years ago

Find the limit (if it exists). (If an answer does not exist, enter DNE.) $ \displaystyle{\lim_{\Delta x \rightarrow 0}} \text{ }

shtirl [24]

Answer:

2x - 2

Step-by-step explanation:

Here is the completer question

lim as Δx → 0 [(x + Δx)²- 2(x + Δx) + 3 - (x² - 2x + 3)]/Δx

Solution

lim as Δx → 0 [(x + Δx)²- 2(x + Δx) + 3 - (x² - 2x + 3)]/Δx

Expanding the brackets, we have

lim as Δx → 0 [(x² + 2xΔx + (Δx)²- 2x - 2Δx + 3 - x² + 2x - 3)]/Δx

Collecting like terms. we have

lim as Δx → 0 [(x² - x² + 2xΔx - 2Δx + (Δx)²- 2x + 2x + 3 - 3)]/Δx

Simplifying, we have

lim as Δx → 0 [(0 + 2xΔx - 2Δx + (Δx)² + 0 + 0)]/Δx

lim as Δx → 0 [2xΔx - 2Δx + (Δx)²]/Δx

Dividing through by Δx, we have

lim as Δx → 0 [2x - 2 + (Δx)]

Inserting Δx = 0, we have

= lim as Δx → 0 (2x -2 + 0)

= 2x -2

So lim as Δx → 0 [(x + Δx)²- 2(x + Δx) + 3 - (x² - 2x + 3)]/Δx = 2x -2

7 0

3 years ago