All categories

2 years ago

If a^2=b^2, does a=b? Explain and justify your answer.

Mathematics

1 answer:

anygoal [31]2 years ago

4 0

Answer:

not necessarily

Step-by-step explanation:

Taking the square root of both sides, you have ...

±a = ±b

Those four cases resolve to two unique cases:

a = ±b

The given equation will be true if a = b or if a = -b. If a and b are constrained to have the same sign, then a=b is the only solution.

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In a card game, the probability that you will have a hand with three of a kind is about 6%. The dealer wants to know the probabi

ELEN [110]

Answer:

its not D :)

Step-by-step explanation:

7 0

2 years ago

Leilani practiced piano for 3/5 of an hour. Sarah practiced piano for 7/8 of an hour.

ivolga24 [154]

Answer:

The number of hours did Sarah practice more than Leilani is $\dfrac{11}{40}$ hours .

Step-by-step explanation:

Given as :

The time for which Leilani practiced piano = $\dfrac{3}{5}$ hours

The time for which Sarah practiced piano = $\dfrac{7}{8}$ hours

Let the number of hours did Sarah practice more than Leilani = T hours

<u>Now, According to question</u>

The number of hours did Sarah practice more than Leilani = $\dfrac{7}{8}$ hours - $\dfrac{3}{5}$ hours

Or, T = $\dfrac{35-24}{40}$ hours

Or, T = $\dfrac{11}{40}$ hours

So,The number of hours did Sarah practice more than Leilani = T = $\dfrac{11}{40}$ hours

Hence, The number of hours did Sarah practice more than Leilani is $\dfrac{11}{40}$ hours . Answer

3 0

3 years ago

I dont understand this

nata0808 [166]

Answer:

The correct answer is:

d) $2x^{2}+3x-3+\frac{3}{4x-6}$

Step-by-step explanation:

The given question is regarding polynomial division.

Please find the attached file for the explanation.

Polynomial division gives:

Quotient: $2x^{2}+3x-3$

Remainder: 3

8 0

2 years ago

Please answer this ??

Vadim26 [7]

The answer is 24.5. Just plug the numbers in

7 0

2 years ago

A recipe for lemonade calls for ½ quarts of lemon juice and ¾ cups of sugar. How much lemon juice is needed for 7.5 cups of suga

Ugo [173]

Answer:

Step-by-step explanation:

3/4*10=7.5, so 1/2*10 is the amount of lemon juice you need, which is 5

5 0

3 years ago