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2 years ago

Fill in the blank. Given O below, you can conclude that xz is congruent to

Mathematics

2 answers:

Illusion [34]2 years ago

7 0

Answer:

Step-by-step explanation:

I do not know the mathematical answer all i know is that they are congruent

g100num [7]2 years ago

6 0

Answer : The XZ is congruent to AC.

Step-by-step explanation :

First we have to prove ΔOBC and ΔOYX are congruent triangles.

Proof:

Side OC = Side OX (radius of same circle)

Side OB = Side OY (equal to 22)

∠B = ∠Y (equal to 90°)

ΔOBC ≅ ΔOYX (By SAS congruency)

So, Side BC = Side YX (By CPCT)

Similarly, Side AB = Side ZX

Or we can say that,

Chord XZ = Chord AC

Hence, the XZ is congruent to AC.

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Colin invests £2100 into his bank account. He receives 5% per year simple interest. How much will Colin have after 3 years? Give

GaryK [48]

Answer:£2415

Step-by-step explanation:

2100x0.01= 21 = 1%

21x5= 105 = 5%

105x3= 315 = 5% for 3 years

2100+315=2415

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2 years ago

You want to put 520 quarters in coin wrappers. You need one rapper for every $10 in quarters. Write equation you can use to find

Nataly_w [17]

10x4=40

520/w=40
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40w/40=520/40

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2 years ago

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write three sentences contrasting the federalist and anti-federalist viewpoints on separation of powers in the constitution. def

timofeeve [1]

Answer:

Federalists were the group of people who believed in and fought for the ratification of the <em>United States Constitution</em>, while Anti-Federalists did not favor the ratification of the United States Constitution. Anti-Federalists appreciated the Articles of Confederation more and favored the U.S. Government having very limited powers, or having no power at all. For this reason, Federalists compromised with Anti-Federalists to draft a <em>Bill of Rights</em>, which lists the ten inalienable rights of any U.S. Citizen regardless.

Separation of Powers was a principle established in our government which is the reason for why the Judicial, Legislative, and Executive Branch exist. Separation of Powers was a way to make sure the government did not have too much power in one area than another, allowing them to keep each other in check from enacting abusive orders or actions.

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2 years ago

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Of the 500 sample households in the previous exercise, 7 had three or more large-screen TVs. (a) The percentage of households in

likoan [24]

Answer:

a) The percentage of households in the town with three or more largescreen TVs is estimated as :

The best estimation for the population proportion is :

$\hat p=\frac{7}{500}=0.014$

And that represent the 1.4%.

b) And the 95% confidence interval would be given (0.00370;0.0243).

And the % would be between 0.37% and 2.43%.

Step-by-step explanation:

Data given and notation

n=500 represent the random sample taken

X=7 represent the households with three or more large-screen TVs

$\hat p=\frac{7}{500}=0.014$ estimated proportion of households with three or more large-screen TVs

$\alpha=0.05$ represent the significance level (no given, but is assumed)

z would represent the statistic (variable of interest)

p= population proportion of households with three or more large-screen TVs

Part a

The percentage of households in the town with three or more largescreen TVs is estimated as :

The best estimation for the population proportion is :

$\hat p=\frac{7}{500}=0.014$

And that represent the 1.4%.

Part b

Yes is possible. We hav that $np>10$ and $n(1-p)>10$ so we have the assumption of normality to find the interval.

The confidence interval would be given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 95% confidence interval the value of $\alpha=1-0.95=0.05$ and $\alpha/2=0.025$ , with that value we can find the quantile required for the interval in the normal standard distribution.