3 years ago

7. What is the value of x? Round answer to the nearest tenth (one decimal

Mathematics

1 answer:

Elden [556K]3 years ago

4 0

Answer:

x= 20,1 degrees

Step-by-step explanation:

The sum of the inner angles of a triangle is 180 degrees

So it must be

3x-11+6x-10+x = 180

added up the terms with x

10x -11-10 = 180

added up the terms without x

10x - 21 = 180

added up (21) in the two members of the equation

10x-21+21 = 180+21

10x = 201

divide the two members by 10

x = 20,1 degrees

You might be interested in

What is 938 written in standard form?

Furkat [3]

Answer:

$9.38 \times 10^{2}$

Step-by-step explanation:

All numbers in scientific notation or standard form are written

$m \times 10^n$ ,

where m is a number between 1 and 10.

8 0

3 years ago

Read 2 more answers

Perimeter of a equilateral triangle is 27cm. Find the length of each sides.

Mademuasel [1]

Answer:

EQUILATERAL TRIANGLE = 3/27

$\frac{27}{3 = } 9$

I HOPE IT IS HELPFUL

7 0

3 years ago

mr, torres took his students to the dolphin show, each row in the stadium had 11 seats, one adult sat at each of a row, and each

Leto [7]

I think the answer would be ten

6 0

4 years ago

If 6 is subtracted from a number the result<br> is 39.

Paha777 [63]

Answer:

Step-by-step explanation:

To find the number you just add 6 to 39 which gets you 45.

5 0

3 years ago

Read 2 more answers

i’m order for a graph to be proportional it must cross through the origin. A.true B.false

Gelneren [198K]

Answer:

True

Step-by-step explanation:

Key idea: the graph of a proportional relationship is a straight line through the origin.

8 0

3 years ago

Read 2 more answers