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3 years ago

I need help asap !!!!!!

Mathematics

1 answer:

OLEGan [10]3 years ago

4 0

Answer:

B. ZJ = 85

C. KH = 68

Step-by-step explanation:

Given that ZK, ZL, ZM are perpendicular bisectors of ∆GHJ, they form a circumcenter which is equidistant from the vertices of ∆GHJ. According to the circumcenter theorem, ZH = ZG = ZJ = 85.

Also each median formed is equal. This means: KH = GH, LH = LJ, MG = MJ

Since HG = 136, KH = ½ of 136 = 68.

The two options that are true are:

B. ZJ = 85

C. KH = 68

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Triangle XYZ is equilateral with vertices located on circle W. Circle W is shown. Line segments W Y, W Z, and W X are radii. Lin

Elis [28]

Answer:

$arc\ YZ=120^o$

$m\angle YWZ=120^o$

Step-by-step explanation:

<u><em>The complete question in the attached figure</em></u>

we know that

An equilateral triangle has three equal sides and three equal interior angles (the measure of each interior angle is 60 degrees)

$m\angle XYZ=m\angle YZX=m\angle ZXY=60^o$

Remember that

The <u><em>inscribed angle</em></u> is half that of the arc it comprises

$arc\ XY=arc\ YZ=arc\ ZX=2(60^o)=120^o$

Remember that

<u><em>Central angle</em></u> is the angle that has its vertex in the center of the circumference and the sides are radii of it

$m\angle YWZ=arc\ YZ=120^o$ ----> by central angle

4 0

4 years ago

Read 2 more answers

Stephanie has the same number of dimes and nickels. She has $6.10 in all. Write an equation that you could use to find the numbe

Igoryamba

Answer:

The equation is

15x = 610

Step-by-step explanation:

A dime is 10 cents while a nickel is 5 cents

$6.10 is same as 610 cents

Let the number of dimes and number of nickels be x

10x + 5x = 610

15x = 610

5 0

3 years ago

GUYS SINCE YOU ARE SMART AND IM NOT HELP PLEASE

lesya692 [45]

<h2>X = 20</h2><h3></h3><h3>10/16</h3><h3>is the same as</h3><h3>12.5/20</h3><h3></h3><h3><em>Please let me know if I am wrong.</em></h3>

8 0

3 years ago

The administration at Pierce College conducted a survey to determine the proportion of students who ride a bike to campus. Of th

8_murik_8 [283]

Answer:

The correct option is (D).

Step-by-step explanation:

To construct the (1 - <em>α</em>)% confidence interval for population proportion the distribution of proportions must be approximated by the normal distribution.

A Normal approximation to binomial can be applied to approximate the distribution of proportion <em>p</em>, if the following conditions are satisfied:

$n\hat p \geq 10$

$n ( 1 - \hat p) \geq 10$

In this case <em>p</em> is defined as the proportions of students who ride a bike to campus.

A sample of <em>n</em> = 125 students are selected. Of these 125 students <em>X</em> = 6 ride a bike to campus.

Compute the sample proportion as follows:

$\hat p=\frac{X}{n}=\frac{6}{125}=0.048$

Check whether the conditions of Normal approximation are satisfied:

$n\hat p =125\times 0.048=610$

Since $n\hat p$ , the Normal approximation to Binomial cannot be applied.

Thus, the confidence interval cannot be used to estimate the proportion of all students who ride a bike to campus.

Thus, the correct option is (D).

6 0

3 years ago

(3^n*3^2)^4=3^28<br> Enter the value of n for the equation<br> N= ?

maksim [4K]

Hello! And thank you for your question!

Use Pemdas to get

3^(n+2)*4=3^28

Rewrite the equation:

3^4(n+2) = 3^28

Cancel the base of 3:

4(n + 2) = 28

Then divide 4 on both sides:

2 + n = 28/4

Simplify 28/4:

2 + n = 7

Subtract 2 on both sides:

n = 7 - 2

Finally simplify 7 - 2:

n = 5

Final Answer:

n = 5

8 0

3 years ago