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rusak2 [61]
3 years ago
13

BRAINLIEST ASAP! PLEASE HELP ME :) thanksss!

Mathematics
1 answer:
Murljashka [212]3 years ago
8 0

In the polygons we can compare these corners:

E = B

F = A

G = D

H = C

So, EFGH = BADC.

We can write ratios:

EF/BA = 2.2/x+2

FG/AD = 1.75/1.75

GH/DC = 2.05/2.05

EH/BC = 2.8/4x+2

Now, solve for x.

2.2/x+2 = 2.8/4x+2

2.2(4x+2) = 2.8(x+2)

8.8x + 4.4 = 2.8x + 5.6

6x = 1.2

x = 0.2

Solve for AB

0.2 + 2

2.2

Solve for CB

4(0.2) + 2

0.8 + 2

2.8

Therefore, the answer is Option C

Best of Luck!

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What is the average rate of change <br>y - 3 = -12 (x + 4)​​
vagabundo [1.1K]

Answer:

- 12x

Step-by-step explanation:

y - 3 =  - 12(x + 4) \\ y - 3 =  - 12x - 48 \\ y =  - 12x - 45

Thr answer is the slope.

4 0
3 years ago
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Step-by-step explanation:

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8 0
3 years ago
A parallel system functions whenever at least one of its components works. Consider a parallel system of 5 components, and suppo
Aneli [31]

Answer:

Probability that component 4 works given that the system is functioning = 0.434 .

Step-by-step explanation:

We are given that a parallel system functions whenever at least one of its components works.

There are parallel system of 5 components and each component works independently with probability 0.4 .

Let <em>A = Probability of component 4 working properly, P(A) = 0.4 .</em>

<em>Also let S = Probability that system is functioning for whole 5 components, P(S)</em>

Now, the conditional probability that component 4 works given that the system is functioning is given by P(A/S) ;

P(A/S) =  {Means P(component 4 working and system also working)

divided by P(system is functioning)}

  P(A/S) =  {In numerator it is P(component 4 working) and in

                denominator it is P(system working) = 1 - P(system is not working)}

Since we know that P(system not working) means that none of the components is working in system and it is given with the probability of 0.6 and since there are total of 5 components so P(system working) = 1 - 0.6^{5} .

 Hence, P(A/S) = \frac{0.4}{1 - 0.6^{5} } = 0.434.    

7 0
3 years ago
A bolt falls off an airplane at an altitude of 500 m. How long will it take the bolt to reach
Rudik [331]

Answer:

t = sqrt(500/4.9) =~ 10.1 seconds/ Answer: 10.1015 seconds (this is approximate)

Step-by-step explanation:

Use 4.9t^2 + v0t = s

a) A bolt falls off an airplane at an altitude of 500 m. Approximately how long does it take the bolt to reach the ground?

s = 4.9t^2 + v0t = 500

4.9t^2 = 500

t = sqrt(500/4.9) =~ 10.1 seconds

Part A)

v = initial velocity = 0

s = 500 = vertical distance the object travels (from plane to ground)  

Plug in the given values and solve for t

4.9t^2 + v*t = s

4.9t^2 + 0*t = 500

4.9t^2 + 0 = 500

4.9t^2 = 500

t^2 = 500/4.9

t^2 = 102.04081632653

t = sqrt(102.04081632653)

t = 10.101525445522

t = 10.1015

Answer: 10.1015 seconds (this is approximate)

8 0
3 years ago
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