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Tcecarenko [31]

3 years ago

15

The blades of a helicopter's propeller are perpendicular and congruent. The distance between consecutive blade tips is 24 feet.

Find the length (b) of each blade.

1 answer:

Leno4ka [110]3 years ago

7 0

Check the picture below.

now, recall, both blades are congruent, thus a = b, so c² = a² + b² -> c² = b² + b².

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Please answer the question in the photo:

Vika [28.1K]

Answer:

$\fbox{8x+36}$

Step-by-step explanation:

1. Use the distributive property to write the problem without parentheses. The distributive property says that you can multiply a number next to parentheses by all the numbers inside parentheses. The picture below explains.

$4(2x+9)=\\\\(4*2x)+(4*9)=\\\\4(2x+9)= 8x+36$

Therefore, your answer is

$\fbox{8x+36}$

6 0

3 years ago

What is the rate of change between (29,9) and (33,10)?

Tema [17]

Answer:

$\frac{1}{4}$

Step-by-step explanation:

The rate of change is a measure of the slope

Calculate the slope m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (29, 9) and (x₂, y₂ ) = (33, 10)

m = $\frac{10-9}{33-29}$ = $\frac{1}{4}$ ← rate of change

6 0

3 years ago

Soloha48 [4]

Answer:

3(4j + 7 + 2j)

12j + 21 + 6j

12j + 6j + 21

18j + 21 ----- (1)

3(6j +7)

18j + 21 --------(2)

eq 1 = eq. 2

both are equal

5 0

2 years ago

Three-fourths of a number is greater than or equal to nine less than a number.

Andreyy89

Answer:

$\frac{3}{4} x \geqslant x - 9$

7 0

3 years ago

When 21 is subtracted from the square of a number, the result is 4 times the number.

bixtya [17]

Answer:

7

Step-by-step explanation:

7^2 =49

49 -21 =28

28÷7 = 4

8 0

3 years ago