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3 years ago

I'll give brainliest please help

Mathematics

1 answer:

faltersainse [42]3 years ago

7 0

Answer:

x=15

Converse: If line x and y are parallel then angles on the same line are supplementary angles.

Step-by-step explanation:

Converse:

Let's start with the converse, so if line x and y are parallel then angles on the same line are supplementary angles. I'm not sure if that's the converse your teacher wants but my teacher taught me this.

Finding x:

Now we know that the angles are supplementary angles, that means if w add them together we get 180°. So our equation will be $10x-22+3x+7=180$ . Now we just solve it. We start by combining like terms, then adding the 15 to both sides, and lastly we divide the 13 to both sides and get...

$10x-22+3x+7=180\\13x-15=180\\13x=195\\x=15$

x=15

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For a recent year, the following are the numbers of homicides that occurred each month in New York City: 38, 30, 46, 40, 46,

lubasha [3.4K]

Answer:

Each month is equally likely

Step-by-step explanation:

Given that for a recent year, the following are the numbers of homicides that occurred each month in New York City:

38, 30, 46, 40, 46, 49, 47, 50, 50, 42, 37, 37.

We have to check whether it is equally likely for each of the 12 months

Set Hypotheses as

H0: All months are equally likely

Ha: atleast two months are not equally likely

(Two tailed chisquare test at 5% significance level)

This is a test for chi square goodness of fit and so assuming H0 to be true

we divide the total equaly among 12 months as expected

Observed Expected Chi square

Jan 38 42.66666667 0.510416667

Feb 30 42.66666667 3.760416667

Mar 46 42.66666667 0.260416667

Apr 40 42.66666667 0.166666667

May 46 42.66666667 0.260416667

June 49 42.66666667 0.940104167

July 47 42.66666667 0.440104167

Aug 50 42.66666667 1.260416667

Sep 50 42.66666667 1.260416667

Oct 42 42.66666667 0.010416667

Nov 37 42.66666667 0.752604167

Dec 37 42.66666667 0.752604167

Total 512 512 10.375

df=11

p value = 0.497

Since p >0.05 our alpha we accept H0

Each month is equally likely

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3 years ago

Describe the vector as an ordered pair around coordinates to the nearest 10th the diagram is not drawn to scale

xxMikexx [17]

Answer:

see explanation

Step-by-step explanation:

x = r cosΘ

y = r sinΘ

with r = 54 and Θ = 69°, thus

x = 54cos69° ≈ 19.4

y = 54sin69° ≈ 50.4

Thus (54, 69° ) as an ordered pair

= $\left[\begin{array}{ccc}19.4\\50.4\\\end{array}\right]$

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2 years ago

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2 years ago

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Answer:

$\dfrac{1}{3,357,900}$

Step-by-step explanation:

There are

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3 years ago

Read 2 more answers

Solve this equation! Please Help! √3 x 66.15/4.41 (SHOW YOUR WORK)

finlep [7]

Hi Jessica,
Remember PEMDAS (Parenthesis, Exponents, Multiplication & Division, Addition & Subtraction).

√3 x 66.15/4.41 {Exponents/Cube & Square Roots First}

1.73 x 66.15 ÷ 4.41 {Multiplication}

114.4395 ÷ 4.41 {Division}

25.95 {Final Answer}

Cheers,
Izzy

7 0

2 years ago