All categories

3 years ago

Which shows 53^2-47^2 being evaluated using the difference of square method

Mathematics

1 answer:

tia_tia [17]3 years ago

4 0

I think it would be the last one from my calculations im not positive but its what makes sense.

You might be interested in

In order to avoid heavy traffic, Antonio can drive home after working less than 7 hours or after working more than 9 hours. How

NISA [10]

Answer: h < 7 or h> 9

Step-by-step explanation:

just did the test

4 0

2 years ago

Help pls will give brainlist make sure to show work if needed

weqwewe [10]

Answer:

Step-by-step explanation:

Just make your dot plot so that the amount of dots corresponding to the number is the amount of times the number shows in the box. :)

4 0

2 years ago

At a carnival, contestants are asked to keep rolling a pair of dice until they roll snake eyes. The number of rolls needed has a

Stells [14]

Answer:

The two numbers of rolls are 25.2 and 46.8.

Step-by-step explanation:

The Chebyshev's theorem states that, if X is a r.v. with mean µ and standard deviation σ, then for any positive number k, we have

$P (|X -\mu| < k\sigma) \geq (1-\frac{1}{k^{2}})$

Here

$(1-\frac{1}{k^{2}})=0.75\\\\\Rightarrow \frac{1}{k^{2}}=0.25\\\\\Rightarrow k=\sqrt{\frac{1}{0.25}}\\\\\Rightarrow k=2$

Then we know that,

$|X - \mu| \geq k\sigma,\\\\ \Rightarrow \mu - k\sigma \leq X \leq \mu + k\sigma$ .

Here it is given that mean (µ) = 36 and standard deviation (σ) = 5.4.

Compute the two values between which at least 75% of the contestants lie as follows:

$P(\mu - k\sigma \leq X \leq \mu + k\sigma)=0.75\\\\P(36 - 2\cdot\ 5.4 \leq X \leq 36 + 2\cdot\ 5.4)=0.75\\\\P(25.2\leq X\leq 46.8)=0.75$

Thus, the two numbers of rolls are 25.2 and 46.8.

8 0

2 years ago

Whats the explicit formula sequence

weeeeeb [17]

An explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). It defines the sequence as a formula in terms of n.

6 0

2 years ago

What is the number that has 2 hundreds and the tens digit is 9 more than the ones digit?

Over [174]

The number is 290 because 2 is in the hundreds and 9 more in tens than ones place then has to be 0.

3 0

2 years ago