All categories

3 years ago

Can you please help explain how to solve this?

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

3 0

$\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the Triangle

Angle sum property.

We have to use here the Exterior Angle theorem of a triangle, so we get as ,

Angle ACD = 113°

You might be interested in

Which equation is the inverse of y = 9x2 - 4?

m_a_m_a [10]

Answer:

The inverse will be:

$y' = \frac{\sqrt{x+4}}{3}$

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

$f(x) = 9x^{2} - 4$

$y = 9x^{2} - 4$

$x = 9y' ^{2} - 4$

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

$x + 4= 9y'^{2} - 4+4$

$9y'^{2}$ = x + 4

Second divide by 9

$9y'^{2}$ /9 = (x + 4)/9

$y'^{2}$ = (x + 4)/9

Now you will have to clear y, with the square root.

$[tex]y'^{\frac{2}{2}} = \sqrt{x + 4} / \sqrt{9}$ [/tex] =

Simplifying terms

$y' = \frac{\sqrt{x+4}}{3}$

$f^{-1}(x) = \frac{\sqrt{x+4}}{3}$

You can check the answer by doing the evaluation of the following equation:

(f o $f^{-1}$ ) (x)

substitute the equation for y' or inverse function $f^{-1}$

f( $\frac{\sqrt{x+4} }{3}$ )

Now substitue the value into f(x)

You will have

$= 9(\frac{\sqrt{x+4} }{3}} )^{2} - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} ) - 4$

5 0

3 years ago

7.1 + 16.04 – .2 = ?

skad [1K]

The answer is 22.94 because of reasons and math and decimals and stuffy I'm not going to go in to detail somebody else can because I'm not with the math stuff

8 0

3 years ago

Read 2 more answers

lin has 8 green apples and 2 red apples .if he slices the green apples in eighths ,how many apple slices will he have ?

lutik1710 [3]

64 because each apple is sliced into 8ths and there are 8 apples so 8x8=64

3 0

3 years ago

Triangle A’B’C is the image ABC under a translation.

grigory [225]

A translation by 3 units to the right.

6 0

2 years ago

I need help with B!!

statuscvo [17]

400 grams of trail mix

5 0

3 years ago

Read 2 more answers