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valentina_108 [34]
3 years ago
15

For BRAINLY :) Triangle angle-sum theorem

Mathematics
1 answer:
PtichkaEL [24]3 years ago
4 0

9514 1404 393

Answer:

  s = 53°

Step-by-step explanation:

The sum of angles in a triangle is 180°.

  (s -20°) +(2s) + 41° = 180°

  3s +21° = 180° . . . . . . . . . . collect terms

  s +7° = 60° . . . . . . . . . . divide by 3

  s = 53° . . . . . . . . . . subtract 7°

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Write in slope-intercept form an equation of the line that passes through the given points.
pishuonlain [190]

Answer:

y = x+5

Step-by-step explanation:

First we find the slope

m = (y2-y1)/(x2-x1)

m = (7-3)/(2 - -2)

   =(7-3)/(2+2)

  = 4/4

   = 1

The slope intercept form is

y = mx+b

y = x+b

Substitute a point in

7 = 2+b

Subtract 2 from each side

5 =b

y = x+5

4 0
3 years ago
Read 2 more answers
Select the correct answer.
zhannawk [14.2K]

Answer:

It is B. 15 because the formula for this is 2 (l+w) 15+6=21 21*2=42

4 0
3 years ago
Hey can u please help please
atroni [7]
In a triangular prism, B usually stand for the triangular base of the prism. It is the area of the triangle.

Area of a right triangle = ab/2
a = long leg ; b = short leg

Given measures are:
a = 4 yd ; b = 3 yd

A = (4 yd * 3 yd)/2 = 12 yd² / 2 = 6 yd² is the value of B.

the hypotenuse is 5 yd but it is not needed to get the area of the right triangle base. 7 yd is the measure of the height of the triangular prism.
5 0
3 years ago
Read 2 more answers
If 2/3x - 1 = 4 then x = ?
8_murik_8 [283]

Answer: 2/15

Step-by-step explanation:

2/3x-1(3x/3x)=4

2/3x-3x/3x=4

2-3x=12x

2=15x

x=2/15

8 0
3 years ago
Measure (7x+1) (2x+1)
Gemiola [76]

Smaller angle = 41°

Larger angle = 139°

Step-by-step explanation:

(7x - 1) + (2x + 1) = 180

7x + 2x - 1 + 1 = 180

9x = 180

x = 20

  • The measure of the smaller angle is

2x + 1

= 2(20) + 1

= 40 + 1

<u>= 41°</u>

  • The measure of the larger angle is

7x - 1

= 7(20) - 1

= 140 - 1

<u>= 139°</u>

4 0
3 years ago
Read 2 more answers
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