I need to understand proofs

Mathematics

1 answer:

Sergio039 [100]3 years ago

7 0

What do u mean by proofs

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Evaluate.<br> (3/4)2 · (1/6)2<br> a) 1/64<br> b)1/36<br> c)1/16<br> d)3/4

Valentin [98]

Answer:

Step-by-step explanation:

(3/4)^2 ⋅ (1/6)^2

Simplify the expression.

--->Exact Form: 1/64

---> Decimal Form: 0.015625

(I also converted my work into a google doc, so I'll attach that since it's quite difficult to type out steps on brainly. Especially with fractions and trying to make the steps look clean and easy to read. But I hope this helps and thanks for telling me about the problem when I asked.)

Don't hesitate to message me if you have any other math questions. I'd be happy to help. :D

3 0

3 years ago

Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning. Write fee

Vinil7 [7]

Solving the expression $-4.5 + 4.2 + 5.6 -7.3$ we get -2.

Comparing the solution with the one given, you can find the errors.

Step-by-step explanation:

We need to simplify $-4.5 + 4.2 + 5.6 -7.3$ and identify errors.

Since the steps are not shown, so we cannot identify errors but I can solve the expression and you can compare to find errors.

Simplifying:

$-4.5 + 4.2 + 5.6 -7.3$

Using algebraic rule: if one digit has positive (+) sign and other digit has negative (-) sign then we will perform subtraction. and after subtraction, the sign of bigger value will be the sign of result.

Using the rule and solving:

$=(-4.5 + 4.2) + 5.6 -7.3$