3 years ago

In the diagram below, P is circumscribed about quadrilateral ABCD.

Mathematics

2 answers:

NeX [460]3 years ago

7 0

Answer:

The value of x is 80° .

Step-by-step explanation:

As shown in the diagram.

The quadrilateral is inscribed in a circle.

Now using the property

Opposite angles in any quadrilateral inscribed in a circle are supplements of each other. (Their measures add up to 180 degrees.)

Thus

∠A + ∠C = 180°

As ∠A = 100° , ∠C = x

Put in the above

100° + x = 180°

x = 180° - 100°

x = 80°

quester [9]3 years ago

6 0

So: A + C = 180°
X + 20° + 110° = 180°
Then:
X = 50°

You might be interested in

Last school year, the student body of a local university consisted of 30% freshmen, 24% sophomores, 26% juniors, and 20% seniors

satela [25.4K]

Find the given attachment

8 0

3 years ago

Make r the subject of the formula in 1 - E Rr

Artemon [7]

Answer:

r= 1r- eR = r

Step-by-step explanation:

r-r = ER final answer to equal r= -ER

8 0

2 years ago

PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!

V125BC [204]

Answer:

option A

Step-by-step explanation:

when there is an open circle, that means Less than or equal to.

if and when there is a Closed, colored Circle, It's Greater than or equal to or less than or equal to

5 0

3 years ago

Read 2 more answers

What is the term of a 7-term geometric series if the first term is -11 the last term is -45,056 and the common ratio is -4

shutvik [7]

I assume you mean to ask how to find the sum of the seven terms?

You have

$a_2=ra_1$
$a_3=ra_2=r^2a_1$
$a_4=ra_3=r^3a_1$
...
$a_7=ra_6=r^6a_1$

So the sum is

$a_1+ra_1+r^2a_1+\cdots+r^6a_1=a_1(1+r+r^2+\cdots+r^6)=a_1\times\dfrac{1-r^7}{1-r}$

You know that $a_1=-11$ and $r=-4$ , so the sum is equal to

$-4\times\dfrac{1-(-4)^7}{1-(-4)}=-13108$

8 0

3 years ago

Expressions with mixed operations Evaluate.<br> 2.3+3.7-2/27.5-4*5.625

masya89 [10]

2.3+3.7-2/27.5-4*5.625. use pedmas.
=appromaxietly -16.57

5 0

3 years ago