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erik [133]
3 years ago
12

The value of (a+b)² - (a-b)² is​

Mathematics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

4ab

Step-by-step explanation:

(a+b)^2-(a-b)^2

=a^2 + 2ab + b^2 -(a^2 - 2ab +b^2)

=a^2 + 2ab + b^2 - a^2 + 2ab - b^2

=2ab + 2ab

=4ab

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Omlll I need help with all of these but like you don’t have to answer all of them lol
krok68 [10]

Answer:

For 17 the first answer is 1(1/20). The picture can be misleading because the flags are at the same height and the American flag's pole looks shorter. This is only because it is behind the Floridian flag and because the perspective isn't accurate to compare them.

Step-by-step explanation:

The mixed fraction would be 1(5/100) which can be simplified when you divide the fraction by 5 into 1(1/20).

7 0
3 years ago
What's the answer to the algebra expression <br> -3(1-6n)-(n-8)
noname [10]

Answer:

I believe the answer is 17n+5

Step-by-step explanation:

-1(1-6n)-(n-8)

-3+18n-(-1n)+8

17n+5

7 0
3 years ago
Read 2 more answers
Sandy used a virtual coin toss app to show the results of flipping a coin 80 times, 800 times, and 3,000 times. Explain what mos
Oksana_A [137]

Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments.

The theoretical probability of landing on orange is one fourth, and the experimental probability is 20%.

The experimental probability of selecting an orange marble is 0.33.

The experimental probability of landing on a number less than 2 is 12 over 60.

The experimental probability of landing on heads is 49%.

The theoretical probability of a fair coin landing on heads is 0.5.

<h3>How to calculate the probability?</h3>

It should be noted that a coin has a head and tail. Therefore, the probability of getting either will be:

= 1/2 = 0.5

Therefore, Sandy's experimental probability was exactly the same as the theoretical probability for all three experiments.

The statement that compares the theoretical and experimental probability of landing on orange is that the theoretical probability of landing on orange is one fourth, and the experimental probability is 20%.

The experimental probability will be:

= 4/(6+3+7+4)

= 4/20 = 1/5

Based on the given frequency, the experimental probability of selecting an orange marble will be:

= 5/(4+6+5)

= 5/15

= 0.33

The experimental probability of landing on a number less than 2 is 12 over 60.

The experimental probability of landing on heads will be:

= 98/(98 + 102)

= 98/200

= 49%

The theoretical probability of a fair coin landing on heads will be:

= 1/2 = 0.5

Flip a coin 14 times and record the frequency of each outcome gives:

Head, Tail, Head, Head, Head, Tail, Tail, Head, Tail, Tail, Tail, Tail, Head, Head. The theoretical and experimental probability are 0.5.

Learn more about probability on:

brainly.com/question/24756209

#SPJ1

4 0
2 years ago
60% of what number is 24
ozzi
Your answer is 14.4
6 0
3 years ago
Read 2 more answers
Estimate 83% of 196<br><br> SHOW YOUR WORK PLEASE!!
Mama L [17]

Calculator 1: Calculate the percentage of a number.

For example: 27% of 100 = 27

Calculator 2: Calculate a percentage based on 2 numbers.

<span>For example: 27/100 = 27%

Thats for future help. And the Answer is

</span><span>= 162.68 </span>
6 0
4 years ago
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