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yanalaym [24]
3 years ago
5

The exterior sides of two adjacent angles make

Mathematics
1 answer:
kirza4 [7]3 years ago
3 0

Answer:

a=28 degrees

b=62 degrees

Step-by-step explanation:

Use substitution.

Since we know a right angle = 90 deg, then a+b=90 (1st equation)

Our second equation is a+3=1/2b

subtract -3 to make a=1/2b-3, then plug in the a value into the a+b=90 equation. Then solve for b.

subtract the value that you got for b from 90deg to give you the value for a.

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Subtract 9a^2-6a+59a 2 −6a+59, a, squared, minus, 6, a, plus, 5 from 10a^2+3a+2510a 2 +3a+2510, a, squared, plus, 3, a, plus, 25
nasty-shy [4]

Answer:

The answer to your question is   a² + 9a + 20

Step-by-step explanation:

               10a² + 3a + 25 - (9a² - 6a + 5)

- Remove parentheses changing the sign of the second polynomial

               10a² + 3a + 25 - 9a² + 6a - 5

- Group like terms

               (10a² - 9a²) + (3a + 6a) + (25 - 5)

- Simplify and result

                a² + 9a + 20

8 0
3 years ago
Find the geometric mean of 4 and 18.
Finger [1]

Answer:

6√2

Step-by-step explanation:

Gm = √a×b

= √4×18

= √72

= √36×2

= √6²×2

= 6√2

4 0
3 years ago
Completed statement with a situation in the unit of your choice then answer the question and draw a diagram
Ainat [17]
The answer is b no questions asked good luck
3 0
3 years ago
Read 2 more answers
74. Seven workers are hired to seed a field by hand. Each is given a plot 7 x 7
Lelu [443]

Answer:

The total area of the field is 343 square feet

Step-by-step explanation:

Let us solve the question

∵ There are 7 workers hired to seed a field by hand

∵ Each is given a plot 7 x 7  feet in size

→ The plot has shaped a square because its two dimensions equal

∴ The side of the plot = 7 feet

∵ The area of the square = side × side

∴ The area of each plot = 7 × 7

∴ The area of each plot = 49 square feet

→ To find the total area multiply the area of 1 plot by the number

   of the workers

∵ The total area = 49 × 7

∴ The total area = 343 square feet

∴ The total area of the field is 343 square feet

6 0
3 years ago
Alexa is designing a paper airplane whose final shape, when viewed from the top or bottom, is a trapezoid. A sketch of her
Eduardwww [97]

Answer:

2cm, 3 cm, 3cm

Step-by-step explanation:

the base is 2cm and its 3cm high

ps. if i dont get this right than dont send hate just say no thats not it

6 0
3 years ago
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