Ask question

Ask question

All categories

3 years ago

15

Given that chord EF is a diameter of circle D, which of the following names a major arc?

2 answers:

Bogdan [553]3 years ago

8 0

Answer:

A is the correct answer

Step-by-step explanation:

Thepotemich [5.8K]3 years ago

3 0

Answer:

The correct option is A.

Step-by-step explanation:

It is given that the chord EF is a diameter of circle D.

Arc is a part of circumference. If two points lying on a circle then the shortest arc is called the 'minor arc' the longer one is called the 'major arc'.

The arc EGC is the sum of arc EG,GF and FC. The length of EGC is more than half of the circumference because EF is diameter and a diameter divides the circumference in two equal parts.

The arc EGF is the sum of EG and GF. Therefore arc EGF is less than EGC. Therefore option B is incorrect.

The arc EG is less than EGC. Therefore option C is incorrect.

The arc ECF is the sum of EC and EF. The length of ECF is half of the circumference because EF is diameter. Therefore arc ECF is less than EGC. Therefore option D is incorrect.

So, the correct option is A.

You might be interested in

Choose all the values equal to -5/7

MatroZZZ [7]

Answer:

A B E

Step-by-step explanation:

6 0

3 years ago

Which pair of undefined terms is used to define a Ray?

REY [17]

Answer:

The undefined terms which are used to define a ray is:

Point and a line.

Step-by-step explanation:

The undefined terms in coordinate geometry are:

Line, Points and Plane.

since a line do not have any length, Point has a location but no size.

A line has no width and it extends infinitely and is one dimensional.

and a plane extends infinitely in both the dimensions.

<em>Ray:</em>

<em>A ray is part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint.</em>

Hence, the undefined terms which are used to define a ray is:

Point and a line.

4 0

3 years ago

Most adults would not erase all of their personal information online if they could. A software firm survey of 480 randomly selec

Westkost [7]

Answer:

-7.90

Step-by-step explanation:

Let's write the null hypothesis (H0) and alternative hypothesis (Ha) from the claim statement

P = population proportion of adults who would erase all of their personal information online if they could

H_{0}:P=0.5

H1 P< 0.5

Let's write the given information:

n = sample size = 480

sample proportion = $\hat p = 0.35$

formula of z test statistic for one sample proportion test is as follows:

$Z=\frac{\hat p-P}{\sqrt{\frac{P\times(1-P)}{n}}}$

plug the above values in the above formula we get

$Z =\frac{0.35-0.5}{\sqrt{\frac{0.35(1-0.5)}{480}}}=Z=-7.85584$

So that the test statistic value is -7.90 (Rounded up to two decimal places)

3 0

3 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST !!

zhenek [66]

Answer:

BCF and GFC

EFC and DCF

because they are alternate

3 0

2 years ago

Read 2 more answers

Determine the x- and y-intercepts of the graph of y = 1/4x - 2

Olegator [25]

8,-2. place the x as 8 and y as -2.

8 0

3 years ago

Read 2 more answers