I’ll give u a kiss if u help me with this ASAP PLZZZ;) with an explanation too plzzz

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two sides of this t

natima [27]

Answer:

8cm and 2cm

I would appreciate if my answer is chosen as a brainliest answer

4 0

2 years ago

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Tan inverse X + tan inverse Y + tan inverse z=pie prove that X+Y+Z=xyz<br>

vfiekz [6]

Answer:

see explanation

Step-by-step explanation:

Given

$tan^{-1}$ x + $tan^{-1}$ y + $tan^{-1}$ z = π

let

$tan^{-1}$ x = A , $tan^{-1}$ y = B , $tan^{-1}$ z = C , so

x = tanA, y = tanB , z = tanC

Substituting values

A + B + C = π ( subtract C from both sides )

A + B = π - C ( take tan of both sides )

tan(A + B) = tan(π - C) = - tanC ( expand left side using addition identity for tan )

$\frac{tanA+tanB}{1-tanAtanB}$ = - tanC ( multiply both sides by 1 - tanAtanB )

tanA + tanB = - tanC( 1 - tanAtanB) ← distribute

tanA+ tanB = - tanC + tanAtanBtanC ( add tanC to both sides )

tanA + tanB + tanC = tanAtanBtanC , that is

x + y + z = xyz

3 0

3 years ago

4 letters are typed, with repetition allowed. What is the probability that all 4 will be vowels? Write your answer as apercent.

zubka84 [21]

The total number of alphabets are 26.

The total number of vowels are 5.

Th repetition is allowed.

The possible outocme for all to be vowels are,

$PO=5^4$ $PO=625$

The total outcome is,

$TO=26^4$

Therefore, the probability that all 4 will be vowels ,

$P=\frac{625}{456976}$ $P=0.00137$

The probability is 0.137 %.

7 0

1 year ago

Write the equation of the line perpendicular to 2x+3y=9 that passes through (-2,5). Write your answer in slope-intercept form. S

amid [387]

Answer:

y = (3/2)x + 8

Step-by-step explanation:

Hi

First let's find the slope of the given line by converting to slope-intercept form:-

2x + 3y = 9

3y = -2x + 9

y = (-2/3)x + 3

From this we see that the slope is -2/3.

The slope of a line perpendicular to this one will be - 1 / (-2/3)

= 3/2. ( because for a line and its perpendicular, the slopes' product = -1).

Using the point-slope form to find the equation of this line

y - y1 = m(x - x1). Here m = slope and (x1, y1) is a point on the line.

Plugging in the given values , m = 3/2 , x1 = -2 and y1 = 5:-

y - 5 = 3/2 (x - -2)

y - 5 = 3/2x + 3

y = (3/2)x + 8 which is the equation in slope-intercept form.

8 0

2 years ago

Please help I don’t understand

Stella [2.4K]

Y = 22

X is 5. Plug 5 into X and solve to get Y

6 0

2 years ago

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