3 years ago

To find 23 times 8, double and halve

Mathematics

2 answers:

monitta3 years ago

8 0

I believe the answer is 184

Papessa [141]3 years ago

6 0

The answer is 184. 23 * 8 = 184. 184 * 2 = 368. 368 ÷ 2 = 184

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which of the following questions (multiple answers) are the square roots for 529? check all that applies please I've been stuck

mr Goodwill [35]

23 is one of the answers, and -23, because negative times negative is positive.

Hope this helps and have a nice day:)

4 0

4 years ago

What is the area of the triangle in the diagram?

Schach [20]

Answer:

$\frac{(a-b)^2+b^2}{a^2}$

which agrees with the first choice (A) in your list of possible answers

Step-by-step explanation:

Notice that the area of the outer square is given by the square of it side $(a)$ .Then the outer area is given by: $a^2$

Now, the inner square's area we calculate by subtracting from the outer area four equal right angle triangles (those shaded in grey in the figure provided). Each of such right angle triangles have an area given by the general formula of a triangle's area:

$Area_{triangle}= \frac{base\,*\,height}{2} =\frac{(a-b)\,b}{2} =\frac{ab-b^2}{2}$