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2 years ago

Show that angle a+ angle b is equal to angle d

Mathematics

2 answers:

mr_godi [17]2 years ago

8 0

sum of two angles of triangle are equal to the exterior angle of triangle

mestny [16]2 years ago

6 0

Answer:

Below.

Step-by-step explanation:

a + b + c = 180 degrees (angles in a triangle)

c + d = 180 degrees ( adjacent angles).

So, subtracting the 2 equations:

a + b + c - c - d = 0

a + b - d = 0

a + b = d.

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What does this mean???

LenKa [72]

Answer:

A lot of things to be honest!

Step-by-step explanation:

I don't know what you are being asked to do but these are some possibilities...

You could graph it. I have the graph linked below.

You could Convert it to Interval Notation

[ 0, $\frac{1}{e}$ ]

You could Evaluate it.

log (8 )

log 2 ( 16 )

√ 2

3 0

3 years ago

An ice cream store sells 28 flavors of ice cream. Determine the number of 4 dip sundaes.

weeeeeb [17]

Answer:

$20,475\ ways$

Step-by-step explanation:

we know that

Combinations are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

$C(n,r)=\frac{n!}{r!(n-r)!}$

where

n represents the total number of items

r represents the number of items being chosen at a time.

In this problem

$n=28\\r=4$

substitute

$C(28,4)=\frac{28!}{4!(28-4)!}\\\\C(28,4)=\frac{28!}{4!(24)!}$

simplify

$C(28,4)=\frac{(28)(27)(26)(25)(24!)}{4!(24)!}$

$C(28,4)=\frac{(28)(27)(26)(25)}{(4)(3)(2)(1)}$

$C(28,4)=20,475\ ways$

6 0

3 years ago

PLEASE HELPPPP ILL MARK BRAINLIEST

NNADVOKAT [17]

Coordinate 1 is : (0,3)
Coordinate 2 is : (-4,-2)
Coordinate 3 is : (-1,-5)
Coordinate 4 is (4,0)
Hope this helps!

7 0

2 years ago

Jorge is designing a square poster. the poster has an area of 169in^2.what is the length of each side?

Naily [24]

$Let \: the \: side \: of \: the \: poster \: be \: x\: (x>0) \\ \Rightarrow {x}^{2} = 169\Leftrightarrow x = 13 \\ \Rightarrow B. \: 13$

7 0

3 years ago

Read 2 more answers

Expand this expression (x-y)²

pochemuha

Answer:

x^2 - 2xy + y^2.

Step-by-step explanation:

(x - y)^2

= (x - y)(x - y)

= x(x -y) - y(x - y)

= x^2 - xy - xy + y^2

= x^2 - 2xy + y^2.

8 0

2 years ago

Show that angle a+ angle b is equal to angle d​

Show that angle a+ angle b is equal to angle d