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3 years ago

Choose the statement that does NOT describe similarity.

Mathematics

1 answer:

kirza4 [7]3 years ago

8 0

To answer your question the answer is the third choice.

c. Two polygons are similar when the only difference is size

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Classify the object in real life by what type of polygon it is. State if it is concave or convex, and explain why. Also write th

Ahat [919]

Answer:

see below for classification

concave: angles less than 180°

regular: sides and angles congruent

sum = 180°(n -2)

Step-by-step explanation:

A) The given shapes are classified and described in the attachment. (A polygon is a plane figure, so a "tripod" and a "dome" are not polygons.)

B) A convex polygon has interior angles that measure less than 180°. A concave polygon has one or more reflex angles.

C) A regular polygon has all angle measures congruent, and all side lengths congruent.

D) The sum of interior angles can be calculated from the formula ...

angle sum = 180° · (n -2) . . . . where n is the number of sides

4 0

4 years ago

Which of the following is equivalent to (5 /k) + ((k + 3) /(k + 5)) ?

Mars2501 [29]

$\frac{5}{k}+\frac{k+3}{k+5}=\frac{5(k+5)}{k(k+5)}+\frac{k(k+3)}{k(k+5)}=\frac{5k+25+k^2+3k}{k(k+5)}=\frac{k^2+8k+25}{k(k+5)}\\\\Answer:E$

4 0

4 years ago

Read 2 more answers

What is 63 divided by 36?

katovenus [111]

Answer:

1.75

Step-by-step explanation:

used a calculator

8 0

3 years ago

Read 2 more answers

jennifer scored 75 on her quiz last week. this week she scored 90. what was the percent of increase on the quiz score?

Arlecino [84]

Answer:

The answer is a 20% increase

Hope this helps!

Mark me brainliest if I'm right :)

4 0

3 years ago

What is the result of isolating x2 in the equation below?(x + 1)2 + ( -8)2 =9A. x2 = -y2 - 2x +16y - 56B. x2 = y2 +2x+16y +56C.

Anit [1.1K]

The expression we have is:

$(x+1)^2+(y-8)^2=9$

Step 1. Use the binomial square formula:

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

Applying this formula to the first binomial squared:

$x^2+2x+1+(y-8)^2=9$

Step 2. Apply the formula for the square of a binomial to the second binomial:

$x^2+2x+1+y^2+2(y)(-8)+(-8)^2^{}=9$

In this case, we have some operations to solve before we move on to isolating x. So we solve the operations:

$x^2+2x+1+y^2-16y+64^{}=9$

Step 3. Move the terms that are not x squared to the right side of the expression. Remember that when we move one term from one side of the equation to the other, the term must change its sign. We get the following:

$x^2=9-2x-1-y^2+16y-64$

Step 4. Combine like terms and arrange terms in order from the greatest exponent to the lowest and leave the independent term at the end:

$x^2=-y^2-2x+16y-56$

And that is the final result, which is option A.

Answer: Option A.

3 0

2 years ago