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3 years ago

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Mathematics

2 answers:

Sauron [17]3 years ago

7 0

Answer:

a. AA

b. no (sides are not proportional)

Step-by-step explanation:

a. Two angles are marked as congruent. The triangles are similar by the AA postulate.

b. The side ratios 6 : 8 : 11 and 15 : 20 : 33 are both in reduced form. They are clearly not identical, so sides are not proportional. The triangles are not similar.

Daniel [21]3 years ago

6 0

Answer:

Total surface area of rectangle pyramid =area of base +area of triangular faces 7. Total surface area:11*4+2*2(10.2*11+11.4*4)=201in? 9. Total area:6*9+2*2(6*8.3+7.6*9)-172.2ft? 11.Total surface area: 5*8+2*2(12.6*5+12.3*8)=201.4yd?

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6cm

Daniel [21]

Answer:

26cm

Step-by-step explanation:

P= all sides

p=6+3+2+4+2+3+6

should get 26 then add the correct symbol...so put 26 cm

8 0

3 years ago

Percent of change from 0.55. to 0.1. Show all your work please!!!!!!

Artemon [7]

Y1 = 0.55
y2= 0.1

-81.81818181% using this formula ((y2 - y1) / y1)*100 = your percentage change.
Thus ((0.55 - 0.1) / .55)*100 = -81.81818181818181818181818181....

7 0

3 years ago

1. Cabrini goes out for dinner, and the price of her meal is $18. The sales tax on the meal is 6%, and she also wants to leave a

Daniel [21]

Answer:

19.64

Step-by-step explanation:

7 0

3 years ago

The equations below represent the numbers y of tickets sold after x weeks for two different local music festivals.

patriot [66]

Answer:

x=3.5

Step-by-step explanation:

if y = y

20x+115=10x+150

-10x -10x

10x+115=150

-115 -115

10x=35

x=3.5

brainllest please

5 0

3 years ago

Read 2 more answers

What is the area, in square feet, of the shape below? Express your answer as a fraction in simplest form.

earnstyle [38]

Answer:

5/8 ft²

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Base = 5/3 ft

Height = 3/4 ft

Area of a triangle = 1/2 * base * height

= 1/2 * 5/3 ft * 3/4 ft

Multiply numerator separately and denominator separately

= (1 * 5 * 3) / (2 * 3 * 4) ft²

= 15/24 ft²

= 5/8 ft²

Area of a triangle = 5/8 ft²

8 0

3 years ago