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3 years ago

2. What was the purpose of the Civil Defense system?

1 answer:

galina1969 [7]3 years ago

8 0

Answer: civil protection is an effort to protect the citizens of a state (generally non-combatants) from military attacks and natural disasters. It uses the principles of emergency operations: prevention, mitigation, preparation, response, or emergency evacuation and recovery.

Step-by-step explanation:

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Please help with 1 Math question!!!

musickatia [10]

For this case we must solve the following quadratic equation:

$x ^ 2-5x-8 = 0$

We use the quadratic formula to find the solutions:

$x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}$

Where:

$a = 1\\b = -5\\c = -8$

Substituting we have:

$x = \frac {- (- 5) \pm \sqrt {(- 5) ^ 2-4 (1) (- 8)}} {2 (1)}\\x = \frac {5 \pm \sqrt {25 + 32}} {2}\\x = \frac {5 \pm \sqrt {57}} {2}$

In this way we have two roots:

$x_ {1} = \frac {5+ \sqrt {57}} {2}\\x_ {2} = \frac {5- \sqrt {57}} {2}$

Answer:

$x_ {1} = \frac {5+ \sqrt {57}} {2}\\x_ {2} = \frac {5- \sqrt {57}} {2}$

6 0

3 years ago

A baseball team batted 250 times during the season. During the season they got 120 hits, 60 strikeouts, 50 flyouts and 20 ground

GuDViN [60]

Answer:

52%

Step-by-step explanation:

250 TAB (Team At Bats)

120 TH (Team Hits)

130 TBO [60+50+20] (Team Batted Out)

130/250 = 52% or .52

7 0

3 years ago

Find the value of y. A. 25.5 B. 18 C. 75 D. 36

Paladinen [302]

Answer: 18

Step-by-step explanation: Angles opposite of each other in a trapezoid equal 180 minus each other so 180 - 105 = 75 so 75 = 4y + 3

Subtract 3 from both sides

72 = 4y

Divide by 4

y = 18

8 0

3 years ago

Need help horribly geometry question

Angelina_Jolie [31]

Answer:

23.31 ft

Step-by-step explanation:

Reference angle = 47°

Opp = 25 ft

Adj = x

Apply trigonometry ratio TOA:

Tan 47 = Opp/Adj

Tan 47 = 25/x

x*Tan 47 = 25

x = 25/Tan 47

x = 23.3128772 ≈ 23.31 ft (to 2 d.p)

7 0

3 years ago

(Translate each sentence into a formula)

Brilliant_brown [7]

Answer:

A=πr2

THIS IS THE ANSWER

PLEASE MARK BRAINLIEST!!!!!

4 0

3 years ago