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2 years ago

8

A. How many lines of symmetry does a regular polygon have? B. Give a rule for the number of lines of symmetry in a regular polyg

on. In two or more complete sentences, justify the rule.

1 answer:

astra-53 [7]2 years ago

6 0

A regular polygon has about 5 lines of symmetry. The number of lines of symmetry is equivalent to the number of sides.

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Deanna gets 3 problems incorrect on her math quiz and scores 85%. How many questions were on the quiz?

katrin2010 [14]

Answer:

There were 20 questions on the quiz

Step-by-step explanation:

In this question, we are concerned with knowing the number of questions on a quiz, given that Deana had a certain percentage after scoring an amount of marks.

We proceed as follows;

Let the number of questions on the quiz be X.

Now, she got 85% by making 3 incorrect choices. This means the percentage of questions she got incorrectly would be 100-85 = 15%

what we are saying is that it is just 15% of her questions that were wrong.

This mathematically;

15% of x = 3

15/100 * x = 3

15x = 3 * 100

15x = 300

x = 300/15

x = 20

5 0

2 years ago

Carrie Ambrose has family medical coverage through her employer's group medical plan. The annual cost of Carrie's plan is $14,80

Anvisha [2.4K]

Answer:

$4440

Step-by-step explanation:

From the question, the annual cost of the plan is $14800

The employer pays 70% 0f the cost.

⇒70/100 ×14800 =$10360

Remaining amount to pay=

14800-10360=$4440

5 0

3 years ago

The monarch butterfly population is estimated at 18,000. It decreased at a

Natasha_Volkova [10]

Answer:

I think, yes?

Step-by-step explanation:

6 0

2 years ago

If you help ill give you some of my banana milk...

snow_tiger [21]

Given:

The function is:

$f(x)=4x^2-25x-21$

To find:

The domain of the given function.

Solution:

Domain is the set of input values.

We have,

$f(x)=4x^2-25x-21$

It is a quadratic polynomial.

We know that a quadratic polynomial is defined for all real values of x. So, the given function is defined for all real values of x and the domain of the given function is:

Domain = Set of all real number

Domain = (-∞,∞)

Therefore, the correct option is B.

3 0

2 years ago

What is the equation of the absolute function shown in the graph?

oee [108]

Answer is <u>6|x+2|+2</u>

Please check the attached image of answer to clear the doubt.

<em>By </em><em>Benjemin</em><em> </em>☺️

6 0

2 years ago