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3 years ago

I NEED ANSWER TO THIS!! POINTS

Mathematics

1 answer:

Julli [10]3 years ago

3 0

Answer:

3 - (-5) , (-1) - 2

Step-by-step explanation:

The distance formula is X2 - x1 and Y2 -Y1. Just replace the X and Y with your coordinate values.

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Please show all work with the answers please

kenny6666 [7]

Part A

The angle of elevation of the staire case is given by

$Angle\ of\ elevation=\tan^{-1}{ \frac{Vertical\ rise}{landing} } \\ \\ =\tan^{-1}{ \frac{14}{20} }\approx35^o$

Part B:

If the landing of each step is changed to 17 inches and the elevation of each step to 21 inches, the new angle of elevation for the staircase is given by

 $Angle\ of\ elevation=\tan^{-1}{ \frac{Vertical\ rise}{landing} } \\ \\ =\tan^{-1}{ \frac{17}{21} }\approx39^o$

5 0

2 years ago

I need help w the answer

Semenov [28]

Answer:

Step-by-step explanation:

Took the test and got it right hope it's right

8 0

2 years ago

What is the value of x? Enter your answer in the box. x =

Assoli18 [71]

Answer:

x = 5

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 12² = 13², so

x² + 144 = 169 ( subtract 144 from both sides )

x² = 25 ( take the square root of both sides )

x = $\sqrt{25}$ = 5

3 0

3 years ago

Simplify question 2 please ASAP !!!!

Mrrafil [7]

Answer:

$\sqrt[3]{ - 0.125} = \sqrt{ - 1} \times \sqrt[3]{0.125 } \\ = 5i$

here i equals √-1

Step-by-step explanation:

Answer is 5i

If you have any doubts write in comments box.

HAVE A NICE DAY !

3 0

2 years ago

What size is the television screen shown in the illustration? Find if 20 in. and 15 in. ?

serg [7]

12 2 +16 2 = D2

D2= 144+256
D2= 400

D2= 400

7 0

2 years ago