3 years ago

Solve the following equation:

Mathematics

1 answer:

saul85 [17]3 years ago

8 0

Answer:

to get ride of the x² you are gonna square root both sides so it is now 2x=5 divide by 2 on both sides and boom x=2.5

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PLS HELP ASAP What pattern do you notice about the exponents when dividing two powers with the same base?

Tanya [424]

Answer:

subtract the exponents

Step-by-step explanation:

To divide powers of the same base, you can subtract the exponents.

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2 years ago

Triangle A B C is shown. Angle A C B is a right angle. The length of the hypotenuse is 20.

kherson [118]

Answer:

The length of BC is needed because it is the side opposite ∠A.

Step-by-step explanation:

Given the right angles triangle as shown in the attachment, we can get sin(A) without using Pythagoras theorem. Instead we will use SOH CAH TOA trigonometry identity.

According to SOH:

Sin(A) = Opposite/Hypotenuse

Sin(A) = |BC|/|AB|

Opposite side of the triangle is the side facing ∠A.

Based on the formula, we will need to get the opposite side of the triangle which is length BC for us to be able to determine sinA since the hypotenuse is given.