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Natali5045456 [20]
2 years ago
9

Find BC. plssss helpp!!!

Mathematics
1 answer:
Lelechka [254]2 years ago
7 0

Answer:

<em>BC is 22.5 mi</em>

Step-by-step explanation:

Using the pythagorean theorem formula. <em> </em><em>c</em><em>²</em><em> </em><em>=</em><em> </em><em>a</em><em>²</em><em> </em><em>+</em><em> </em><em>b</em><em>²</em>

<em>BC²</em><em> </em><em>=</em><em> </em><em>AB²</em><em> </em><em>+</em><em> </em><em>AC</em><em>²</em>

<em>BC²</em><em> </em><em>=</em><em> </em><em>1</em><em>9</em><em>²</em><em> </em><em>+</em><em> </em><em>1</em><em>2</em><em>²</em>

<em>BC²</em><em> </em><em>=</em><em> </em><em>3</em><em>6</em><em>1</em><em> </em><em>+</em><em> </em><em>1</em><em>4</em><em>4</em>

<em>BC²</em><em> </em><em>=</em><em> </em><em>5</em><em>0</em><em>5</em>

<em>√</em><em>B</em><em>C</em><em>²</em><em> </em><em>=</em><em> </em><em>√</em><em>5</em><em>0</em><em>5</em>

<em>BC</em><em> </em><em>=</em><em> </em><em>2</em><em>2</em><em>.</em><em>5</em>

<em>Therefore</em><em> </em><em>BC </em><em>is </em><em>2</em><em>2</em><em>.</em><em>5</em><em> </em><em>mi</em>

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6 0
3 years ago
Please help<br><br><br> AOB = ?<br><br> BOC = ?<br><br> BOD = ?
goldfiish [28.3K]
From the diagram, we know that it is an angle that adds up to 360

So

x+4x+2x+10+5x+50=360


Gather like terms

12x+60=360

Move sixty to the other side as a negative number

12x=300

Divide both sirs by twelve

x is equal to 25

AOB is 2x+10

Sub x in 2*25+10

AOB is 60

BOC is 5x+50

5*25+50, which is 175

BOD is x+2x+10

Which is 3x+10

Sub x

3*25+10 which is 85

:)
7 0
3 years ago
Read 2 more answers
Part of a regression output is provided below. Some of the information has been omitted.
quester [9]

Answer:

301.189

Step-by-step explanation:

Given the table :

Source of Variation - - SS - - - df - - - MS - - - - F

Regression - - - - - -3177.17 - - -2 - - 1588.6

Residual - - - - - - - - ______ --17 - - -17.717

Total - - - - - - - - - - 3478.36 - - 19

Calculate the SSR, Sum of Square residual

The Sum of Square RESIDUAL (SSR), Mean Square Residual (MSR) and Degree of Freedom RESIDUAL (DFR) are related by the formular :

MSR = SSR / DFR

Hence,

SSR = MSR × DFR

Fr the table ;

MSR = 17.717 ; DFR = 17

SSR = (17.717 × 17)

SSR = 301.189

5 0
3 years ago
Would the answer be 12.5
frutty [35]
Which question in order for me 2 answer

5 0
3 years ago
CAN SOMEONE PLEASE HELP ME???
Varvara68 [4.7K]

Answer:

m=2

Step-by-step explanation:

slope is the average rate of change in a specific interval

we can calculate slope in this case with Δy/Δx or (y2-y1)/(x2-x1)

m=(y2-y1)/(x2-x1)

=(-1-7)/(-3-1)

=-8/-4

=2

5 0
2 years ago
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